Testing two 12TB drives in a Dell R730 on FreeBSD

I’m ready to downsize. I’m going to replace knew with r730-03. The former has 20 5TB drives. I don’t need all that space now. I’ll settle for 12TB instead.

The two new drives arrived today:

[23:39 r730-03 dvl ~] % grep da2 /var/run/dmesg.boot
da2 at mrsas0 bus 1 scbus1 target 2 lun 0
da2:  Fixed Direct Access SPC-4 SCSI device
da2: Serial Number 8CJVT8YE            
da2: 150.000MB/s transfers
da2: 11444224MB (23437770752 512 byte sectors)


[23:38 r730-03 dvl ~] % grep da3 /var/run/dmesg.boot 
da3 at mrsas0 bus 1 scbus1 target 3 lun 0
da3:  Fixed Direct Access SPC-4 SCSI device
da3: Serial Number ZHZ16KEX
da3: 150.000MB/s transfers
da3: 11444224MB (23437770752 512 byte sectors)

In this post:

Let’s look at the drives

This one has 1 power-on hour. Perhaps that’s true, perhaps that was reset.

[23:49 r730-03 dvl ~] % sudo smartctl -a /dev/da2   
smartctl 7.4 2023-08-01 r5530 [FreeBSD 13.2-RELEASE-p2 amd64] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     HGST Ultrastar DC HC520 (He12)
Device Model:     HGST HUH721212ALE600
Serial Number:    8CJVT8YE
LU WWN Device Id: 5 000cca 26fe85bd5
Firmware Version: LEBDT3P2
User Capacity:    12,000,138,625,024 bytes [12.0 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database 7.3/5528
ATA Version is:   ACS-2, ATA8-ACS T13/1699-D revision 4
SATA Version is:  SATA 3.2, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Mon Aug 14 23:49:07 2023 UTC
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x80)	Offline data collection activity
					was never started.
					Auto Offline Data Collection: Enabled.
Self-test execution status:      (   0)	The previous self-test routine completed
					without error or no self-test has ever 
					been run.
Total time to complete Offline 
data collection: 		(   87) seconds.
Offline data collection
capabilities: 			 (0x5b) SMART execute Offline immediate.
					Auto Offline data collection on/off support.
					Suspend Offline collection upon new
					command.
					Offline surface scan supported.
					Self-test supported.
					No Conveyance Self-test supported.
					Selective Self-test supported.
SMART capabilities:            (0x0003)	Saves SMART data before entering
					power-saving mode.
					Supports SMART auto save timer.
Error logging capability:        (0x01)	Error logging supported.
					General Purpose Logging supported.
Short self-test routine 
recommended polling time: 	 (   2) minutes.
Extended self-test routine
recommended polling time: 	 (1287) minutes.
SCT capabilities: 	       (0x003d)	SCT Status supported.
					SCT Error Recovery Control supported.
					SCT Feature Control supported.
					SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000b   100   100   016    Pre-fail  Always       -       0
  2 Throughput_Performance  0x0005   100   100   054    Pre-fail  Offline      -       0
  3 Spin_Up_Time            0x0007   100   100   024    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0012   100   100   000    Old_age   Always       -       1
  5 Reallocated_Sector_Ct   0x0033   100   100   005    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000b   100   100   067    Pre-fail  Always       -       0
  8 Seek_Time_Performance   0x0005   100   100   020    Pre-fail  Offline      -       0
  9 Power_On_Hours          0x0012   100   100   000    Old_age   Always       -       1
 10 Spin_Retry_Count        0x0013   100   100   060    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       1
 22 Helium_Level            0x0023   100   100   025    Pre-fail  Always       -       100
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       1
193 Load_Cycle_Count        0x0012   100   100   000    Old_age   Always       -       1
194 Temperature_Celsius     0x0002   162   162   000    Old_age   Always       -       37 (Min/Max 25/37)
196 Reallocated_Event_Count 0x0032   100   100   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0022   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0008   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x000a   200   200   000    Old_age   Always       -       0
241 Total_LBAs_Written      0x0012   100   100   000    Old_age   Always       -       0
242 Total_LBAs_Read         0x0012   100   100   000    Old_age   Always       -       2873

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
No self-tests have been logged.  [To run self-tests, use: smartctl -t]

SMART Selective self-test log data structure revision number 1
 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
Selective self-test flags (0x0):
  After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

The above only provides legacy SMART information - try 'smartctl -x' for more

[23:49 r730-03 dvl ~] % 

This one has only 19 power-on hours. I’m beginning to think the SMART data wasn’t reset.

On a server-centered Discord channel, I saw: “On Seagate drives, you have to ignore the Seek_Error_Rate. I only look at 5, 9, 10, 194, 197, 199.”

[23:50 r730-03 dvl ~] % sudo smartctl -a /dev/da3      
smartctl 7.4 2023-08-01 r5530 [FreeBSD 13.2-RELEASE-p2 amd64] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Seagate Exos X14
Device Model:     ST12000NM0538-2K2101
Serial Number:    ZHZ16KEX
LU WWN Device Id: 5 000c50 0b5d973f9
Firmware Version: CN04
User Capacity:    12,000,138,625,024 bytes [12.0 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database 7.3/5528
ATA Version is:   ACS-4 (minor revision not indicated)
SATA Version is:  SATA 3.3, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Mon Aug 14 23:53:21 2023 UTC
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x82)	Offline data collection activity
					was completed without error.
					Auto Offline Data Collection: Enabled.
Self-test execution status:      (   0)	The previous self-test routine completed
					without error or no self-test has ever 
					been run.
Total time to complete Offline 
data collection: 		(  575) seconds.
Offline data collection
capabilities: 			 (0x7b) SMART execute Offline immediate.
					Auto Offline data collection on/off support.
					Suspend Offline collection upon new
					command.
					Offline surface scan supported.
					Self-test supported.
					Conveyance Self-test supported.
					Selective Self-test supported.
SMART capabilities:            (0x0003)	Saves SMART data before entering
					power-saving mode.
					Supports SMART auto save timer.
Error logging capability:        (0x01)	Error logging supported.
					General Purpose Logging supported.
Short self-test routine 
recommended polling time: 	 (   1) minutes.
Extended self-test routine
recommended polling time: 	 (1178) minutes.
Conveyance self-test routine
recommended polling time: 	 (   2) minutes.
SCT capabilities: 	       (0x50bd)	SCT Status supported.
					SCT Error Recovery Control supported.
					SCT Feature Control supported.
					SCT Data Table supported.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000f   079   069   044    Pre-fail  Always       -       86597434
  3 Spin_Up_Time            0x0003   098   098   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       2
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   069   061   045    Pre-fail  Always       -       7361714
  9 Power_On_Hours          0x0032   100   100   000    Old_age   Always       -       19
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       2
 18 Head_Health             0x000b   100   100   050    Pre-fail  Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
188 Command_Timeout         0x0032   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   062   058   040    Old_age   Always       -       38 (Min/Max 32/38)
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       0
193 Load_Cycle_Count        0x0032   100   100   000    Old_age   Always       -       4
194 Temperature_Celsius     0x0022   038   042   000    Old_age   Always       -       38 (0 27 0 0 0)
195 Hardware_ECC_Recovered  0x001a   079   069   000    Old_age   Always       -       86597434
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0010   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       0
200 Pressure_Limit          0x0023   100   100   001    Pre-fail  Always       -       0
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       19h+03m+47.375s
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       42626721
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       23480504123

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed without error       00%         0         -

SMART Selective self-test log data structure revision number 1
 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
Selective self-test flags (0x0):
  After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

The above only provides legacy SMART information - try 'smartctl -x' for more

[23:53 r730-03 dvl ~] % 

Let’s run some short tests

These drives came from serverpartdeals.com. They are used and re-certified. I’d run these tests on new drives too.

The first one:

[23:49 r730-03 dvl ~] % sudo smartctl -t short /dev/da2
smartctl 7.4 2023-08-01 r5530 [FreeBSD 13.2-RELEASE-p2 amd64] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===
Sending command: "Execute SMART Short self-test routine immediately in off-line mode".
Drive command "Execute SMART Short self-test routine immediately in off-line mode" successful.
Testing has begun.
Please wait 2 minutes for test to complete.
Test will complete after Mon Aug 14 23:52:59 2023 UTC
Use smartctl -X to abort test.
[23:50 r730-03 dvl ~] % 

And the other:

[23:53 r730-03 dvl ~] % sudo smartctl -t short /dev/da3
smartctl 7.4 2023-08-01 r5530 [FreeBSD 13.2-RELEASE-p2 amd64] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===
Sending command: "Execute SMART Short self-test routine immediately in off-line mode".
Drive command "Execute SMART Short self-test routine immediately in off-line mode" successful.
Testing has begun.
Please wait 1 minutes for test to complete.
Test will complete after Mon Aug 14 23:55:17 2023 UTC
Use smartctl -X to abort test.
[23:54 r730-03 dvl ~] % 

Test results

Here are the test results. All good:

[23:57 r730-03 dvl ~] % sudo smartctl -l selftest /dev/da2
smartctl 7.4 2023-08-01 r5530 [FreeBSD 13.2-RELEASE-p2 amd64] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed without error       00%         1         -

[23:57 r730-03 dvl ~] % sudo smartctl -l selftest /dev/da3
smartctl 7.4 2023-08-01 r5530 [FreeBSD 13.2-RELEASE-p2 amd64] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed without error       00%        19         -
# 2  Short offline       Completed without error       00%         0         -

[23:57 r730-03 dvl ~] % 

Now for offline tests

These are the offline tests.

[23:58 r730-03 dvl ~] % sudo smartctl -t offline /dev/da2
smartctl 7.4 2023-08-01 r5530 [FreeBSD 13.2-RELEASE-p2 amd64] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===
Sending command: "Execute SMART off-line routine immediately in off-line mode".
Drive command "Execute SMART off-line routine immediately in off-line mode" successful.
Testing has begun.
Please wait 87 seconds for test to complete.
Test will complete after Tue Aug 15 00:00:06 2023 UTC
Use smartctl -X to abort test.

[23:58 r730-03 dvl ~] % sudo smartctl -t offline /dev/da3   
smartctl 7.4 2023-08-01 r5530 [FreeBSD 13.2-RELEASE-p2 amd64] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===
Sending command: "Execute SMART off-line routine immediately in off-line mode".
Drive command "Execute SMART off-line routine immediately in off-line mode" successful.
Testing has begun.
Please wait 575 seconds for test to complete.
Test will complete after Tue Aug 15 00:08:05 2023 UTC
Use smartctl -X to abort test.

Notice how one will take 87 seconds, and the other 575 seconds. I have no idea why they’re so vastly different.

The results (obtained via smartctl -a /dev/da2 or da3.

Offline data collection status:  (0x82)	Offline data collection activity
					was completed without error.
					Auto Offline Data Collection: Enabled.
Self-test execution status:      (   0)	The previous self-test routine completed
					without error or no self-test has ever 
					been run.
Total time to complete Offline 
data collection: 		(   87) seconds.


---

Offline data collection status:  (0x82)	Offline data collection activity
					was completed without error.
					Auto Offline Data Collection: Enabled.
Self-test execution status:      (   0)	The previous self-test routine completed
					without error or no self-test has ever 
					been run.
Total time to complete Offline 
data collection: 		(  575) seconds.

conveyance tests

From the man page:

conveyance – [ATA only] runs a SMART Conveyance Self Test
(minutes). This self-test routine is intended to identify
damage incurred during transporting of the device.

One drive supported it, one didn’t. If you search for conveyance above, you’ll find it is stated that it is not supported.

[0:12 r730-03 dvl ~] % sudo smartctl -t conveyance  /dev/da2
smartctl 7.4 2023-08-01 r5530 [FreeBSD 13.2-RELEASE-p2 amd64] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===
Conveyance Self-test functions not supported

Sending command: "Execute SMART Conveyance self-test routine immediately in off-line mode".
Command "Execute SMART Conveyance self-test routine immediately in off-line mode" failed: SAT command failed


[0:12 r730-03 dvl ~] % sudo smartctl -t conveyance  /dev/da3
smartctl 7.4 2023-08-01 r5530 [FreeBSD 13.2-RELEASE-p2 amd64] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===
Sending command: "Execute SMART Conveyance self-test routine immediately in off-line mode".
Drive command "Execute SMART Conveyance self-test routine immediately in off-line mode" successful.
Testing has begun.
Please wait 2 minutes for test to complete.
Test will complete after Tue Aug 15 00:14:55 2023 UTC
Use smartctl -X to abort test.

That test completed just fine:

[0:12 r730-03 dvl ~] % sudo smartctl -l selftest /dev/da3   
smartctl 7.4 2023-08-01 r5530 [FreeBSD 13.2-RELEASE-p2 amd64] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF READ SMART DATA SECTION ===
SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Conveyance offline  Completed without error       00%        19         -
# 2  Short offline       Completed without error       00%        19         -
# 3  Short offline       Completed without error       00%         0         -

[0:15 r730-03 dvl ~] % 

The long test

These will take a while: 21 hours

[0:15 r730-03 dvl ~] % sudo smartctl -t long /dev/da2       
smartctl 7.4 2023-08-01 r5530 [FreeBSD 13.2-RELEASE-p2 amd64] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===
Sending command: "Execute SMART Extended self-test routine immediately in off-line mode".
Drive command "Execute SMART Extended self-test routine immediately in off-line mode" successful.
Testing has begun.
Please wait 1287 minutes for test to complete.
Test will complete after Tue Aug 15 21:43:40 2023 UTC
Use smartctl -X to abort test.


[0:16 r730-03 dvl ~] % sudo smartctl -t long /dev/da3
smartctl 7.4 2023-08-01 r5530 [FreeBSD 13.2-RELEASE-p2 amd64] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF OFFLINE IMMEDIATE AND SELF-TEST SECTION ===
Sending command: "Execute SMART Extended self-test routine immediately in off-line mode".
Drive command "Execute SMART Extended self-test routine immediately in off-line mode" successful.
Testing has begun.
Please wait 1178 minutes for test to complete.
Test will complete after Tue Aug 15 19:54:45 2023 UTC
Use smartctl -X to abort test.
[0:16 r730-03 dvl ~] % 

I’ll take a break now and wait for the results.

The next morning, 20% done

The next morning, the tests were 20% done. This is an excerpt from the output of sudo smartctl -a /dev/da2 (similar output was present for da3

Self-test execution status:      ( 242)	Self-test routine in progress...
					20% of test remaining.

Destructive tests

After reviewing Dan makes another zpool, I ran some destructive tests. Do not do this on disks with data you wish to keep.

[14:07 r730-03 dvl ~] % sudo diskinfo -cit da2 
da2
	512         	# sectorsize
	12000138625024	# mediasize in bytes (11T)
	23437770752 	# mediasize in sectors
	4096        	# stripesize
	0           	# stripeoffset
	1458933     	# Cylinders according to firmware.
	255         	# Heads according to firmware.
	63          	# Sectors according to firmware.
	ATA HGST HUH721212AL	# Disk descr.
	8CJVT8YE            	# Disk ident.
	mrsas0      	# Attachment
	No          	# TRIM/UNMAP support
	7200        	# Rotation rate in RPM
	Not_Zoned   	# Zone Mode

I/O command overhead:
	time to read 10MB block      0.050226 sec	=    0.002 msec/sector
	time to read 20480 sectors   1.380681 sec	=    0.067 msec/sector
	calculated command overhead			=    0.065 msec/sector

Seek times:
	Full stroke:	  250 iter in   4.949596 sec =   19.798 msec
	Half stroke:	  250 iter in   3.539465 sec =   14.158 msec
	Quarter stroke:	  500 iter in   5.710376 sec =   11.421 msec
	Short forward:	  400 iter in   2.104168 sec =    5.260 msec
	Short backward:	  400 iter in   1.311788 sec =    3.279 msec
	Seq outer:	 2048 iter in   0.069544 sec =    0.034 msec
	Seq inner:	 2048 iter in   0.137801 sec =    0.067 msec

Transfer rates:
	outside:       102400 kbytes in   0.414905 sec =   246803 kbytes/sec
	middle:        102400 kbytes in   0.475882 sec =   215179 kbytes/sec
	inside:        102400 kbytes in   0.775464 sec =   132050 kbytes/sec

Asynchronous random reads:
	sectorsize:       853 ops in    3.389369 sec =      252 IOPS
	4 kbytes:         809 ops in    3.650452 sec =      222 IOPS
	32 kbytes:        664 ops in    3.747928 sec =      177 IOPS
	128 kbytes:       635 ops in    3.797528 sec =      167 IOPS
	1024 kbytes:      366 ops in    4.598880 sec =       80 IOPS

[14:10 r730-03 dvl ~] % 

Followed by:

[14:10 r730-03 dvl ~] % sudo diskinfo -cit da3
da3
	512         	# sectorsize
	12000138625024	# mediasize in bytes (11T)
	23437770752 	# mediasize in sectors
	4096        	# stripesize
	0           	# stripeoffset
	1458933     	# Cylinders according to firmware.
	255         	# Heads according to firmware.
	63          	# Sectors according to firmware.
	ATA ST12000NM0538-2K	# Disk descr.
	ZHZ16KEX    	# Disk ident.
	mrsas0      	# Attachment
	No          	# TRIM/UNMAP support
	7200        	# Rotation rate in RPM
	Not_Zoned   	# Zone Mode

I/O command overhead:
	time to read 10MB block      0.059829 sec	=    0.003 msec/sector
	time to read 20480 sectors   1.063691 sec	=    0.052 msec/sector
	calculated command overhead			=    0.049 msec/sector

Seek times:
	Full stroke:	  250 iter in   4.642098 sec =   18.568 msec
	Half stroke:	  250 iter in   3.395792 sec =   13.583 msec
	Quarter stroke:	  500 iter in   3.352194 sec =    6.704 msec
	Short forward:	  400 iter in   2.258338 sec =    5.646 msec
	Short backward:	  400 iter in   1.541628 sec =    3.854 msec
	Seq outer:	 2048 iter in   0.076429 sec =    0.037 msec
	Seq inner:	 2048 iter in   0.158532 sec =    0.077 msec

Transfer rates:
	outside:       102400 kbytes in   0.427550 sec =   239504 kbytes/sec
	middle:        102400 kbytes in   0.523421 sec =   195636 kbytes/sec
	inside:        102400 kbytes in   0.942803 sec =   108612 kbytes/sec

Asynchronous random reads:
	sectorsize:      1309 ops in    3.376744 sec =      388 IOPS
	4 kbytes:         837 ops in    3.615886 sec =      231 IOPS
	32 kbytes:        709 ops in    3.665145 sec =      193 IOPS
	128 kbytes:       667 ops in    3.776054 sec =      177 IOPS
	1024 kbytes:      376 ops in    4.646296 sec =       81 IOPS

[14:14 r730-03 dvl ~] % 

They seem close enough to be sufficiently compatible to me.

Creating partitions

Why do I create partitions instead of giving ZFS the entire drive? I’ve been doing it this way since at least 2010. Drive sizes vary. Case in point:

  • da2 – 12,000,138,625,024 bytes
  • da3 – 12,000,138,625,024 bytes

Yeah, OK, they are the same here. However, not all 12TB drives will have this size. I bet.

Let’s create the partitions:

[14:14 r730-03 dvl ~] % gpart show da2
gpart: No such geom: da2.
[14:18 r730-03 dvl ~] % gpart show da3
gpart: No such geom: da3.
[14:18 r730-03 dvl ~] % sudo gpart create -s gpt da2
da2 created
[14:23 r730-03 dvl ~] % sudo gpart create -s gpt da3
da3 created
[14:23 r730-03 dvl ~] % gpart show da2              
=>         40  23437770672  da2  GPT  (11T)
           40  23437770672       - free -  (11T)

[14:23 r730-03 dvl ~] % gpart show da3              
=>         40  23437770672  da3  GPT  (11T)
           40  23437770672       - free -  (11T)

[14:23 r730-03 dvl ~] % sudo gpart add -t freebsd-zfs -a 4K -s 23437770600 -l SG_ZHZ16KEX da2
da2p1 added
[14:24 r730-03 dvl ~] % gpart show da2
=>         40  23437770672  da2  GPT  (11T)
           40  23437770600    1  freebsd-zfs  (11T)
  23437770640           72       - free -  (36K)

[14:24 r730-03 dvl ~] % sudo gpart add -t freebsd-zfs -a 4K -s 23437770600 -l HGST_8CJVT8YE da3
da3p1 added
[14:25 r730-03 dvl ~] % gpart show da3                                                         
=>         40  23437770672  da3  GPT  (11T)
           40  23437770600    1  freebsd-zfs  (11T)
  23437770640           72       - free -  (36K)
[14:25 r730-03 dvl ~] % 

Some notes on the above:

  • freebsd-zfs – ZFS partition
  • 4k – align on 4K blocks, because that’s standard now – the drives also have 4096 bytes physical (see the smartctl output)
  • -s – use a little less than all the available space
  • -l – label the partition for easier identification later

I will never miss that 36K at the end of the drives, but I may be glad it’s there when the replacement 12TB is a bit short on space.

Dan creates a zpool

You might ask, why am I blogging about this ‘simple’ stuff? To experience users, this might indeed be considers simple. However, I’m not writing for you. There are some readers who have never created a zpool and they are reading this post and working with ZFS for the first time.

Plus, I want a record of what I did with these drives in case I need to refer to it later.

With the following command, I:

  • create a zpool
  • name it data01
  • declare it to be a mirror
  • which consists of two devices, as referenced via /dev/gpt/
[14:25 r730-03 dvl ~] % sudo zpool create data01 mirror /dev/gpt/HGST_8CJVT8YE /dev/gpt/SG_ZHZ16KEX 
[14:28 r730-03 dvl ~] % zpool list       
NAME     SIZE  ALLOC   FREE  CKPOINT  EXPANDSZ   FRAG    CAP  DEDUP    HEALTH  ALTROOT
data01  10.9T   384K  10.9T        -         -     0%     0%  1.00x    ONLINE  -
zroot    412G  1.71G   410G        -         -     0%     0%  1.00x    ONLINE  -
[14:28 r730-03 dvl ~] % zpool status data01
  pool: data01
 state: ONLINE
config:

	NAME                   STATE     READ WRITE CKSUM
	data01                 ONLINE       0     0     0
	  mirror-0             ONLINE       0     0     0
	    gpt/HGST_8CJVT8YE  ONLINE       0     0     0
	    gpt/SG_ZHZ16KEX    ONLINE       0     0     0

errors: No known data errors
[14:28 r730-03 dvl ~] % 

See how the drives (the proper term is vdev) are identified using the serial numbers? If I ever need to replace one, I can be sure I grab the right one.

Again, now I wait for the tests to finish.

Tests completed

The tests completed last night (2023-08-15) but I spent the evening on moving jails from knew to r730-03.

This is what I see today:

[14:09 r730-03 dvl ~] % sudo smartctl -a /dev/da2         
...
SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Extended offline    Completed without error       00%        22         -
# 2  Short offline       Completed without error       00%         1         -
...

[14:10 r730-03 dvl ~] % sudo smartctl -a /dev/da3
...
SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Extended offline    Completed without error       00%        37         -
# 2  Conveyance offline  Completed without error       00%        19         -
# 3  Short offline       Completed without error       00%        19         -
# 4  Short offline       Completed without error       00%         0         -

For now, I’ll leave this and move onto migrating data from one host to the other.

Edit: 2023-08-24 – smartctl -x

I came back to add some more data.

smartctl -x /dev/da2

[21:34 r730-03 dvl ~] % sudo smartctl -x /dev/da2
smartctl 7.4 2023-08-01 r5530 [FreeBSD 13.2-RELEASE-p2 amd64] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     HGST Ultrastar DC HC520 (He12)
Device Model:     HGST HUH721212ALE600
Serial Number:    8CJVT8YE
LU WWN Device Id: 5 000cca 26fe85bd5
Firmware Version: LEBDT3P2
User Capacity:    12,000,138,625,024 bytes [12.0 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database 7.3/5528
ATA Version is:   ACS-2, ATA8-ACS T13/1699-D revision 4
SATA Version is:  SATA 3.2, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Thu Aug 24 21:34:23 2023 UTC
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
AAM feature is:   Unavailable
APM feature is:   Disabled
Rd look-ahead is: Enabled
Write cache is:   Disabled
DSN feature is:   Unavailable
ATA Security is:  Disabled, NOT FROZEN [SEC1]
Wt Cache Reorder: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x82)	Offline data collection activity
					was completed without error.
					Auto Offline Data Collection: Enabled.
Self-test execution status:      (   0)	The previous self-test routine completed
					without error or no self-test has ever 
					been run.
Total time to complete Offline 
data collection: 		(   87) seconds.
Offline data collection
capabilities: 			 (0x5b) SMART execute Offline immediate.
					Auto Offline data collection on/off support.
					Suspend Offline collection upon new
					command.
					Offline surface scan supported.
					Self-test supported.
					No Conveyance Self-test supported.
					Selective Self-test supported.
SMART capabilities:            (0x0003)	Saves SMART data before entering
					power-saving mode.
					Supports SMART auto save timer.
Error logging capability:        (0x01)	Error logging supported.
					General Purpose Logging supported.
Short self-test routine 
recommended polling time: 	 (   2) minutes.
Extended self-test routine
recommended polling time: 	 (1287) minutes.
SCT capabilities: 	       (0x003d)	SCT Status supported.
					SCT Error Recovery Control supported.
					SCT Feature Control supported.
					SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAGS    VALUE WORST THRESH FAIL RAW_VALUE
  1 Raw_Read_Error_Rate     PO-R--   100   100   016    -    0
  2 Throughput_Performance  P-S---   132   132   054    -    96
  3 Spin_Up_Time            POS---   100   100   024    -    0
  4 Start_Stop_Count        -O--C-   100   100   000    -    1
  5 Reallocated_Sector_Ct   PO--CK   100   100   005    -    0
  7 Seek_Error_Rate         PO-R--   100   100   067    -    0
  8 Seek_Time_Performance   P-S---   132   132   020    -    17
  9 Power_On_Hours          -O--C-   100   100   000    -    239
 10 Spin_Retry_Count        PO--C-   100   100   060    -    0
 12 Power_Cycle_Count       -O--CK   100   100   000    -    1
 22 Helium_Level            PO---K   100   100   025    -    100
192 Power-Off_Retract_Count -O--CK   100   100   000    -    10
193 Load_Cycle_Count        -O--C-   100   100   000    -    10
194 Temperature_Celsius     -O----   150   150   000    -    40 (Min/Max 25/41)
196 Reallocated_Event_Count -O--CK   100   100   000    -    0
197 Current_Pending_Sector  -O---K   100   100   000    -    0
198 Offline_Uncorrectable   ---R--   100   100   000    -    0
199 UDMA_CRC_Error_Count    -O-R--   200   200   000    -    0
241 Total_LBAs_Written      -O--C-   100   100   000    -    20345293008
242 Total_LBAs_Read         -O--C-   100   100   000    -    7801657647
                            ||||||_ K auto-keep
                            |||||__ C event count
                            ||||___ R error rate
                            |||____ S speed/performance
                            ||_____ O updated online
                            |______ P prefailure warning

General Purpose Log Directory Version 1
SMART           Log Directory Version 1 [multi-sector log support]
Address    Access  R/W   Size  Description
0x00       GPL,SL  R/O      1  Log Directory
0x01           SL  R/O      1  Summary SMART error log
0x02           SL  R/O      1  Comprehensive SMART error log
0x03       GPL     R/O      1  Ext. Comprehensive SMART error log
0x04       GPL     R/O    256  Device Statistics log
0x04       SL      R/O    255  Device Statistics log
0x06           SL  R/O      1  SMART self-test log
0x07       GPL     R/O      1  Extended self-test log
0x08       GPL     R/O      2  Power Conditions log
0x09           SL  R/W      1  Selective self-test log
0x0c       GPL     R/O   5501  Pending Defects log
0x10       GPL     R/O      1  NCQ Command Error log
0x11       GPL     R/O      1  SATA Phy Event Counters log
0x12       GPL     R/O      1  SATA NCQ Non-Data log
0x13       GPL     R/O      1  SATA NCQ Send and Receive log
0x15       GPL     R/W      1  Rebuild Assist log
0x21       GPL     R/O      1  Write stream error log
0x22       GPL     R/O      1  Read stream error log
0x24       GPL     R/O    256  Current Device Internal Status Data log
0x25       GPL     R/O    256  Saved Device Internal Status Data log
0x30       GPL,SL  R/O      9  IDENTIFY DEVICE data log
0x80-0x9f  GPL,SL  R/W     16  Host vendor specific log
0xa6       GPL     VS       1  Device vendor specific log
0xb2       GPL     VS     688  Device vendor specific log
0xe0       GPL,SL  R/W      1  SCT Command/Status
0xe1       GPL,SL  R/W      1  SCT Data Transfer

SMART Extended Comprehensive Error Log Version: 1 (1 sectors)
No Errors Logged

SMART Extended Self-test Log Version: 1 (1 sectors)
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Extended offline    Completed without error       00%        22         -
# 2  Short offline       Completed without error       00%         1         -

SMART Selective self-test log data structure revision number 1
 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
Selective self-test flags (0x0):
  After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

SCT Status Version:                  3
SCT Version (vendor specific):       256 (0x0100)
Device State:                        Active (0)
Current Temperature:                    40 Celsius
Power Cycle Min/Max Temperature:     33/41 Celsius
Lifetime    Min/Max Temperature:     25/41 Celsius
Under/Over Temperature Limit Count:   0/0

SCT Temperature History Version:     2
Temperature Sampling Period:         1 minute
Temperature Logging Interval:        1 minute
Min/Max recommended Temperature:      0/60 Celsius
Min/Max Temperature Limit:           -40/70 Celsius
Temperature History Size (Index):    128 (5)

Index    Estimated Time   Temperature Celsius
   6    2023-08-24 19:27    38  *******************
 ...    ..(101 skipped).    ..  *******************
 108    2023-08-24 21:09    38  *******************
 109    2023-08-24 21:10    39  ********************
 ...    ..( 15 skipped).    ..  ********************
 125    2023-08-24 21:26    39  ********************
 126    2023-08-24 21:27    40  *********************
 ...    ..(  5 skipped).    ..  *********************
   4    2023-08-24 21:33    40  *********************
   5    2023-08-24 21:34    38  *******************

SCT Error Recovery Control:
           Read: Disabled
          Write: Disabled

Device Statistics (GP Log 0x04)
Page  Offset Size        Value Flags Description
0x01  =====  =               =  ===  == General Statistics (rev 1) ==
0x01  0x008  4               1  ---  Lifetime Power-On Resets
0x01  0x010  4             239  ---  Power-on Hours
0x01  0x018  6     20345295072  ---  Logical Sectors Written
0x01  0x020  6        64073743  ---  Number of Write Commands
0x01  0x028  6      7801801263  ---  Logical Sectors Read
0x01  0x030  6        26035139  ---  Number of Read Commands
0x01  0x038  6       860958350  ---  Date and Time TimeStamp
0x03  =====  =               =  ===  == Rotating Media Statistics (rev 1) ==
0x03  0x008  4             239  ---  Spindle Motor Power-on Hours
0x03  0x010  4             239  ---  Head Flying Hours
0x03  0x018  4              10  ---  Head Load Events
0x03  0x020  4               0  ---  Number of Reallocated Logical Sectors
0x03  0x028  4               0  ---  Read Recovery Attempts
0x03  0x030  4               0  ---  Number of Mechanical Start Failures
0x04  =====  =               =  ===  == General Errors Statistics (rev 1) ==
0x04  0x008  4               0  ---  Number of Reported Uncorrectable Errors
0x04  0x010  4               0  ---  Resets Between Cmd Acceptance and Completion
0x05  =====  =               =  ===  == Temperature Statistics (rev 1) ==
0x05  0x008  1              40  ---  Current Temperature
0x05  0x010  1              38  N--  Average Short Term Temperature
0x05  0x018  1               -  N--  Average Long Term Temperature
0x05  0x020  1              41  ---  Highest Temperature
0x05  0x028  1              25  ---  Lowest Temperature
0x05  0x030  1              40  N--  Highest Average Short Term Temperature
0x05  0x038  1              25  N--  Lowest Average Short Term Temperature
0x05  0x040  1               -  N--  Highest Average Long Term Temperature
0x05  0x048  1               -  N--  Lowest Average Long Term Temperature
0x05  0x050  4               0  ---  Time in Over-Temperature
0x05  0x058  1              60  ---  Specified Maximum Operating Temperature
0x05  0x060  4               0  ---  Time in Under-Temperature
0x05  0x068  1               0  ---  Specified Minimum Operating Temperature
0x06  =====  =               =  ===  == Transport Statistics (rev 1) ==
0x06  0x008  4              11  ---  Number of Hardware Resets
0x06  0x010  4               5  ---  Number of ASR Events
0x06  0x018  4               0  ---  Number of Interface CRC Errors
0xff  =====  =               =  ===  == Vendor Specific Statistics (rev 1) ==
                                |||_ C monitored condition met
                                ||__ D supports DSN
                                |___ N normalized value

Pending Defects log (GP Log 0x0c)
No Defects Logged

SATA Phy Event Counters (GP Log 0x11)
ID      Size     Value  Description
0x0001  2            0  Command failed due to ICRC error
0x0002  2            0  R_ERR response for data FIS
0x0003  2            0  R_ERR response for device-to-host data FIS
0x0004  2            0  R_ERR response for host-to-device data FIS
0x0005  2            0  R_ERR response for non-data FIS
0x0006  2            0  R_ERR response for device-to-host non-data FIS
0x0007  2            0  R_ERR response for host-to-device non-data FIS
0x0008  2            0  Device-to-host non-data FIS retries
0x0009  2           11  Transition from drive PhyRdy to drive PhyNRdy
0x000a  2           12  Device-to-host register FISes sent due to a COMRESET
0x000b  2            0  CRC errors within host-to-device FIS
0x000d  2            0  Non-CRC errors within host-to-device FIS

There is no -l farm output for this drive.

[21:34 r730-03 dvl ~] % sudo smartctl -l farm /dev/da2
smartctl 7.4 2023-08-01 r5530 [FreeBSD 13.2-RELEASE-p2 amd64] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org

FARM log (GP Log 0xa6) not supported for non-Seagate drives

[21:34 r730-03 dvl ~] % 

smartctl -x /dev/da3

The Seagate drive.

[21:32 r730-03 dvl ~] % sudo smartctl -x /dev/da3
smartctl 7.4 2023-08-01 r5530 [FreeBSD 13.2-RELEASE-p2 amd64] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Seagate Exos X14
Device Model:     ST12000NM0538-2K2101
Serial Number:    ZHZ16KEX
LU WWN Device Id: 5 000c50 0b5d973f9
Firmware Version: CN04
User Capacity:    12,000,138,625,024 bytes [12.0 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database 7.3/5528
ATA Version is:   ACS-4 (minor revision not indicated)
SATA Version is:  SATA 3.3, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Thu Aug 24 21:32:57 2023 UTC
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
AAM feature is:   Unavailable
APM feature is:   Unavailable
Rd look-ahead is: Enabled
Write cache is:   Disabled
DSN feature is:   Disabled
ATA Security is:  Disabled, NOT FROZEN [SEC1]
Unexpected SCT status 0x000d (action_code=0, function_code=2)
Wt Cache Reorder: Unknown (SCT Feature Control command failed)

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x82)	Offline data collection activity
					was completed without error.
					Auto Offline Data Collection: Enabled.
Self-test execution status:      (   0)	The previous self-test routine completed
					without error or no self-test has ever 
					been run.
Total time to complete Offline 
data collection: 		(  575) seconds.
Offline data collection
capabilities: 			 (0x7b) SMART execute Offline immediate.
					Auto Offline data collection on/off support.
					Suspend Offline collection upon new
					command.
					Offline surface scan supported.
					Self-test supported.
					Conveyance Self-test supported.
					Selective Self-test supported.
SMART capabilities:            (0x0003)	Saves SMART data before entering
					power-saving mode.
					Supports SMART auto save timer.
Error logging capability:        (0x01)	Error logging supported.
					General Purpose Logging supported.
Short self-test routine 
recommended polling time: 	 (   1) minutes.
Extended self-test routine
recommended polling time: 	 (1178) minutes.
Conveyance self-test routine
recommended polling time: 	 (   2) minutes.
SCT capabilities: 	       (0x50bd)	SCT Status supported.
					SCT Error Recovery Control supported.
					SCT Feature Control supported.
					SCT Data Table supported.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAGS    VALUE WORST THRESH FAIL RAW_VALUE
  1 Raw_Read_Error_Rate     POSR--   081   064   044    -    115101432
  3 Spin_Up_Time            PO----   097   097   000    -    0
  4 Start_Stop_Count        -O--CK   100   100   020    -    3
  5 Reallocated_Sector_Ct   PO--CK   100   100   010    -    0
  7 Seek_Error_Rate         POSR--   076   061   045    -    42316896
  9 Power_On_Hours          -O--CK   100   100   000    -    256
 10 Spin_Retry_Count        PO--C-   100   100   097    -    0
 12 Power_Cycle_Count       -O--CK   100   100   020    -    3
 18 Head_Health             PO-R--   100   100   050    -    0
187 Reported_Uncorrect      -O--CK   100   100   000    -    0
188 Command_Timeout         -O--CK   100   100   000    -    0
190 Airflow_Temperature_Cel -O---K   059   058   040    -    41 (Min/Max 37/41)
192 Power-Off_Retract_Count -O--CK   100   100   000    -    1
193 Load_Cycle_Count        -O--CK   100   100   000    -    14
194 Temperature_Celsius     -O---K   041   042   000    -    41 (0 27 0 0 0)
195 Hardware_ECC_Recovered  -O-RC-   081   064   000    -    115101432
197 Current_Pending_Sector  -O--C-   100   100   000    -    0
198 Offline_Uncorrectable   ----C-   100   100   000    -    0
199 UDMA_CRC_Error_Count    -OSRCK   200   200   000    -    0
200 Pressure_Limit          PO---K   100   100   001    -    0
240 Head_Flying_Hours       ------   100   253   000    -    256h+22m+08.100s
241 Total_LBAs_Written      ------   100   253   000    -    20714990767
242 Total_LBAs_Read         ------   100   253   000    -    32391579495
                            ||||||_ K auto-keep
                            |||||__ C event count
                            ||||___ R error rate
                            |||____ S speed/performance
                            ||_____ O updated online
                            |______ P prefailure warning

General Purpose Log Directory Version 1
SMART           Log Directory Version 1 [multi-sector log support]
Address    Access  R/W   Size  Description
0x00       GPL,SL  R/O      1  Log Directory
0x01           SL  R/O      1  Summary SMART error log
0x02           SL  R/O      5  Comprehensive SMART error log
0x03       GPL     R/O      5  Ext. Comprehensive SMART error log
0x04       GPL     R/O    256  Device Statistics log
0x04       SL      R/O      8  Device Statistics log
0x06           SL  R/O      1  SMART self-test log
0x07       GPL     R/O      1  Extended self-test log
0x08       GPL     R/O      2  Power Conditions log
0x09           SL  R/W      1  Selective self-test log
0x0a       GPL     R/W      8  Device Statistics Notification
0x0c       GPL     R/O   2048  Pending Defects log
0x10       GPL     R/O      1  NCQ Command Error log
0x11       GPL     R/O      1  SATA Phy Event Counters log
0x13       GPL     R/O      1  SATA NCQ Send and Receive log
0x15       GPL     R/W      1  Rebuild Assist log
0x21       GPL     R/O      1  Write stream error log
0x22       GPL     R/O      1  Read stream error log
0x24       GPL     R/O    768  Current Device Internal Status Data log
0x2f       GPL     R/O      1  Set Sector Configuration
0x30       GPL,SL  R/O      9  IDENTIFY DEVICE data log
0x80-0x9f  GPL,SL  R/W     16  Host vendor specific log
0xa1       GPL,SL  VS      24  Device vendor specific log
0xa2       GPL     VS   16320  Device vendor specific log
0xa4       GPL,SL  VS     160  Device vendor specific log
0xa6       GPL     VS     192  Device vendor specific log
0xa8-0xa9  GPL,SL  VS     136  Device vendor specific log
0xab       GPL     VS       1  Device vendor specific log
0xad       GPL     VS      16  Device vendor specific log
0xbe-0xbf  GPL     VS   65535  Device vendor specific log
0xc1       GPL,SL  VS       8  Device vendor specific log
0xc3       GPL,SL  VS      32  Device vendor specific log
0xc9       GPL,SL  VS       8  Device vendor specific log
0xca       GPL,SL  VS      16  Device vendor specific log
0xd1       GPL     VS     336  Device vendor specific log
0xd2       GPL     VS   10000  Device vendor specific log
0xd4       GPL     VS    2048  Device vendor specific log
0xda       GPL,SL  VS       1  Device vendor specific log
0xe0       GPL,SL  R/W      1  SCT Command/Status
0xe1       GPL,SL  R/W      1  SCT Data Transfer

SMART Extended Comprehensive Error Log Version: 1 (5 sectors)
No Errors Logged

SMART Extended Self-test Log Version: 1 (1 sectors)
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Extended offline    Completed without error       00%        37         -
# 2  Conveyance offline  Completed without error       00%        19         -
# 3  Short offline       Completed without error       00%        19         -
# 4  Short offline       Completed without error       00%         0         -

SMART Selective self-test log data structure revision number 1
 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
Selective self-test flags (0x0):
  After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

SCT Status Version:                  3
SCT Version (vendor specific):       522 (0x020a)
Device State:                        Active (0)
Current Temperature:                    41 Celsius
Power Cycle Min/Max Temperature:     37/41 Celsius
Lifetime    Min/Max Temperature:     26/43 Celsius
Under/Over Temperature Limit Count:   0/2
SMART Status:                        0xc24f (PASSED)
Vendor specific:
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00

SCT Temperature History Version:     2
Temperature Sampling Period:         3 minutes
Temperature Logging Interval:        59 minutes
Min/Max recommended Temperature:     10/40 Celsius
Min/Max Temperature Limit:            5/60 Celsius
Temperature History Size (Index):    128 (6)

Index    Estimated Time   Temperature Celsius
   7    2023-08-19 15:44    38  *******************
 ...    ..(  5 skipped).    ..  *******************
  13    2023-08-19 21:38    38  *******************
  14    2023-08-19 22:37     ?  -
  15    2023-08-19 23:36    37  ******************
  16    2023-08-20 00:35    37  ******************
  17    2023-08-20 01:34    38  *******************
 ...    ..(  4 skipped).    ..  *******************
  22    2023-08-20 06:29    38  *******************
  23    2023-08-20 07:28    39  ********************
 ...    ..(  2 skipped).    ..  ********************
  26    2023-08-20 10:25    39  ********************
  27    2023-08-20 11:24    38  *******************
  28    2023-08-20 12:23    38  *******************
  29    2023-08-20 13:22    37  ******************
 ...    ..(  4 skipped).    ..  ******************
  34    2023-08-20 18:17    37  ******************
  35    2023-08-20 19:16    38  *******************
  36    2023-08-20 20:15    37  ******************
 ...    ..(  4 skipped).    ..  ******************
  41    2023-08-21 01:10    37  ******************
  42    2023-08-21 02:09    38  *******************
  43    2023-08-21 03:08    38  *******************
  44    2023-08-21 04:07    39  ********************
  45    2023-08-21 05:06    39  ********************
  46    2023-08-21 06:05    38  *******************
  47    2023-08-21 07:04    39  ********************
  48    2023-08-21 08:03    39  ********************
  49    2023-08-21 09:02    40  *********************
 ...    ..(  2 skipped).    ..  *********************
  52    2023-08-21 11:59    40  *********************
  53    2023-08-21 12:58    39  ********************
  54    2023-08-21 13:57    38  *******************
  55    2023-08-21 14:56    38  *******************
  56    2023-08-21 15:55    37  ******************
 ...    ..(  3 skipped).    ..  ******************
  60    2023-08-21 19:51    37  ******************
  61    2023-08-21 20:50    38  *******************
 ...    ..(  3 skipped).    ..  *******************
  65    2023-08-22 00:46    38  *******************
  66    2023-08-22 01:45    37  ******************
  67    2023-08-22 02:44    38  *******************
  68    2023-08-22 03:43    39  ********************
  69    2023-08-22 04:42    38  *******************
  70    2023-08-22 05:41    39  ********************
  71    2023-08-22 06:40    38  *******************
  72    2023-08-22 07:39    40  *********************
  73    2023-08-22 08:38    39  ********************
  74    2023-08-22 09:37    40  *********************
  75    2023-08-22 10:36    40  *********************
  76    2023-08-22 11:35    40  *********************
  77    2023-08-22 12:34    39  ********************
  78    2023-08-22 13:33    38  *******************
 ...    ..(  2 skipped).    ..  *******************
  81    2023-08-22 16:30    38  *******************
  82    2023-08-22 17:29    37  ******************
  83    2023-08-22 18:28    37  ******************
  84    2023-08-22 19:27    37  ******************
  85    2023-08-22 20:26    38  *******************
 ...    ..(  6 skipped).    ..  *******************
  92    2023-08-23 03:19    38  *******************
  93    2023-08-23 04:18    39  ********************
  94    2023-08-23 05:17    41  **********************
  95    2023-08-23 06:16    41  **********************
  96    2023-08-23 07:15    40  *********************
  97    2023-08-23 08:14    40  *********************
  98    2023-08-23 09:13    40  *********************
  99    2023-08-23 10:12    39  ********************
 100    2023-08-23 11:11    39  ********************
 101    2023-08-23 12:10    38  *******************
 102    2023-08-23 13:09    38  *******************
 103    2023-08-23 14:08    37  ******************
 ...    ..(  5 skipped).    ..  ******************
 109    2023-08-23 20:02    37  ******************
 110    2023-08-23 21:01    38  *******************
 ...    ..(  6 skipped).    ..  *******************
 117    2023-08-24 03:54    38  *******************
 118    2023-08-24 04:53    39  ********************
 119    2023-08-24 05:52    38  *******************
 120    2023-08-24 06:51    39  ********************
 121    2023-08-24 07:50    38  *******************
 122    2023-08-24 08:49    38  *******************
 123    2023-08-24 09:48    39  ********************
 124    2023-08-24 10:47    39  ********************
 125    2023-08-24 11:46    39  ********************
 126    2023-08-24 12:45    38  *******************
 ...    ..(  2 skipped).    ..  *******************
   1    2023-08-24 15:42    38  *******************
   2    2023-08-24 16:41    37  ******************
   3    2023-08-24 17:40    37  ******************
   4    2023-08-24 18:39    38  *******************
   5    2023-08-24 19:38    38  *******************
   6    2023-08-24 20:37    38  *******************

SCT Error Recovery Control:
           Read:     70 (7.0 seconds)
          Write:     70 (7.0 seconds)

Device Statistics (GP Log 0x04)
Page  Offset Size        Value Flags Description
0x01  =====  =               =  ===  == General Statistics (rev 1) ==
0x01  0x008  4               3  ---  Lifetime Power-On Resets
0x01  0x010  4             256  ---  Power-on Hours
0x01  0x018  6     20714793063  ---  Logical Sectors Written
0x01  0x020  6        70645920  ---  Number of Write Commands
0x01  0x028  6     32391746151  ---  Logical Sectors Read
0x01  0x030  6        52557228  ---  Number of Read Commands
0x01  0x038  6               -  ---  Date and Time TimeStamp
0x03  =====  =               =  ===  == Rotating Media Statistics (rev 1) ==
0x03  0x008  4             256  ---  Spindle Motor Power-on Hours
0x03  0x010  4             256  ---  Head Flying Hours
0x03  0x018  4              14  ---  Head Load Events
0x03  0x020  4               0  ---  Number of Reallocated Logical Sectors
0x03  0x028  4               0  ---  Read Recovery Attempts
0x03  0x030  4               0  ---  Number of Mechanical Start Failures
0x03  0x038  4               0  ---  Number of Realloc. Candidate Logical Sectors
0x03  0x040  4               1  ---  Number of High Priority Unload Events
0x04  =====  =               =  ===  == General Errors Statistics (rev 1) ==
0x04  0x008  4               0  ---  Number of Reported Uncorrectable Errors
0x04  0x010  4               0  ---  Resets Between Cmd Acceptance and Completion
0x04  0x018  4               0  -D-  Physical Element Status Changed
0x05  =====  =               =  ===  == Temperature Statistics (rev 1) ==
0x05  0x008  1              41  ---  Current Temperature
0x05  0x010  1              37  ---  Average Short Term Temperature
0x05  0x018  1               -  ---  Average Long Term Temperature
0x05  0x020  1              43  ---  Highest Temperature
0x05  0x028  1              34  ---  Lowest Temperature
0x05  0x030  1              40  ---  Highest Average Short Term Temperature
0x05  0x038  1              37  ---  Lowest Average Short Term Temperature
0x05  0x040  1               -  ---  Highest Average Long Term Temperature
0x05  0x048  1               -  ---  Lowest Average Long Term Temperature
0x05  0x050  4               0  ---  Time in Over-Temperature
0x05  0x058  1              60  ---  Specified Maximum Operating Temperature
0x05  0x060  4               0  ---  Time in Under-Temperature
0x05  0x068  1               5  ---  Specified Minimum Operating Temperature
0x06  =====  =               =  ===  == Transport Statistics (rev 1) ==
0x06  0x008  4              11  ---  Number of Hardware Resets
0x06  0x010  4               5  ---  Number of ASR Events
0x06  0x018  4               0  ---  Number of Interface CRC Errors
0xff  =====  =               =  ===  == Vendor Specific Statistics (rev 1) ==
0xff  0x008  7               0  ---  Vendor Specific
0xff  0x010  7               0  ---  Vendor Specific
0xff  0x018  7               0  ---  Vendor Specific
                                |||_ C monitored condition met
                                ||__ D supports DSN
                                |___ N normalized value

Pending Defects log (GP Log 0x0c)
No Defects Logged

SATA Phy Event Counters (GP Log 0x11)
ID      Size     Value  Description
0x000a  2            1  Device-to-host register FISes sent due to a COMRESET
0x0001  2            0  Command failed due to ICRC error
0x0003  2            0  R_ERR response for device-to-host data FIS
0x0004  2            0  R_ERR response for host-to-device data FIS
0x0006  2            0  R_ERR response for device-to-host non-data FIS
0x0007  2            0  R_ERR response for host-to-device non-data FIS

Seagate FARM log (GP Log 0xa6) supported [try: -l farm]
[21:33 r730-03 dvl ~] % sudo smartctl -l farm /dev/da3
smartctl 7.4 2023-08-01 r5530 [FreeBSD 13.2-RELEASE-p2 amd64] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org

Seagate Field Access Reliability Metrics log (FARM) (GP Log 0xa6)
	FARM Log Page 0: Log Header
		FARM Log Version: 2.9
		Pages Supported: 6
		Log Size: 98304
		Page Size: 16384
		Heads Supported: 24
		Number of Copies: 0
		Reason for Frame Capture: 0
	FARM Log Page 1: Drive Information
		Serial Number: ZHZ16KEX
		World Wide Name: 0x5000c500b5d973f9
		Device Interface: SATA
		Device Capacity in Sectors: 23437770752
		Physical Sector Size: 4096
		Logical Sector Size: 512
		Device Buffer Size: 268435456
		Number of Heads: 16
		Device Form Factor: 3.5 inches
		Rotation Rate: 7200 rpm
		Firmware Rev: CN04    
		ATA Security State (ID Word 128): 0x01621
		ATA Features Supported (ID Word 78): 0x0168cc
		ATA Features Enabled (ID Word 79): 0x0000000000000044
		Power on Hours: 256
		Spindle Power on Hours: 256
		Head Flight Hours: 256
		Head Load Events: 14
		Power Cycle Count: 4
		Hardware Reset Count: 11
		Spin-up Time: 0 ms
		Time to ready of the last power cycle: 22979 ms
		Time drive is held in staggered spin: 0 ms
		Model Number: 
		Drive Recording Type: UNKNOWN
		Max Number of Available Sectors for Reassignment: 0
		Assembly Date (YYWW): 
		Depopulation Head Mask: 0
	FARM Log Page 2: Workload Statistics
		Total Number of Read Commands: 29589866
		Total Number of Write Commands: 70597043
		Total Number of Random Read Commands: 2618399
		Total Number of Random Write Commands: 59041021
		Total Number Of Other Commands: 54156
		Logical Sectors Written: 20672373494
		Logical Sectors Read: 8913533135
		Number of dither events during current power cycle: 0
		Number of times dither was held off during random workloads: 0
		Number of times dither was held off during sequential workloads: 0
		Number of Read commands from 0-3.125% of LBA space for last 3 SMART Summary Frames: 0
		Number of Read commands from 3.125-25% of LBA space for last 3 SMART Summary Frames: 0
		Number of Read commands from 25-75% of LBA space for last 3 SMART Summary Frames: 0
		Number of Read commands from 75-100% of LBA space for last 3 SMART Summary Frames: 0
		Number of Write commands from 0-3.125% of LBA space for last 3 SMART Summary Frames: 0
		Number of Write commands from 3.125-25% of LBA space for last 3 SMART Summary Frames: 0
		Number of Write commands from 25-75% of LBA space for last 3 SMART Summary Frames: 0
		Number of Write commands from 75-100% of LBA space for last 3 SMART Summary Frames: 0
	FARM Log Page 3: Error Statistics
		Unrecoverable Read Errors: 0
		Unrecoverable Write Errors: 0
		Number of Reallocated Sectors: 0
		Number of Read Recovery Attempts: 0
		Number of Mechanical Start Failures: 0
		Number of Reallocated Candidate Sectors: 0
		Number of ASR Events: 5
		Number of Interface CRC Errors: 0
		Spin Retry Count: 0
		Spin Retry Count Normalized: 100
		Spin Retry Count Worst: 100
		Number of IOEDC Errors (Raw): 0
		CTO Count Total: 0
		CTO Count Over 5s: 0
		CTO Count Over 7.5s: 0
		Total Flash LED (Assert) Events: 0
		Index of the last Flash LED: 0
		Flash LED Event 0:
			Event Information: 0x0000000000000000
			Timestamp of Event 0 (hours): 0
			Power Cycle Event 0: 0
		Flash LED Event 1:
			Event Information: 0x0000000000000000
			Timestamp of Event 1 (hours): 0
			Power Cycle Event 1: 0
		Flash LED Event 2:
			Event Information: 0x0000000000000000
			Timestamp of Event 2 (hours): 0
			Power Cycle Event 2: 0
		Flash LED Event 3:
			Event Information: 0x0000000000000000
			Timestamp of Event 3 (hours): 0
			Power Cycle Event 3: 0
		Flash LED Event 4:
			Event Information: 0x0000000000000000
			Timestamp of Event 4 (hours): 0
			Power Cycle Event 4: 0
		Flash LED Event 5:
			Event Information: 0x0000000000000000
			Timestamp of Event 5 (hours): 0
			Power Cycle Event 5: 0
		Flash LED Event 6:
			Event Information: 0x0000000000000000
			Timestamp of Event 6 (hours): 0
			Power Cycle Event 6: 0
		Flash LED Event 7:
			Event Information: 0x0000000000000000
			Timestamp of Event 7 (hours): 0
			Power Cycle Event 7: 0
		Uncorrectable errors: 0
		Cumulative Lifetime Unrecoverable Read errors due to ERC: 0
		Cum Lifetime Unrecoverable by head 0:
			Cumulative Lifetime Unrecoverable Read Repeating: 0
			Cumulative Lifetime Unrecoverable Read Unique: 0
		Cum Lifetime Unrecoverable by head 1:
			Cumulative Lifetime Unrecoverable Read Repeating: 0
			Cumulative Lifetime Unrecoverable Read Unique: 0
		Cum Lifetime Unrecoverable by head 2:
			Cumulative Lifetime Unrecoverable Read Repeating: 0
			Cumulative Lifetime Unrecoverable Read Unique: 0
		Cum Lifetime Unrecoverable by head 3:
			Cumulative Lifetime Unrecoverable Read Repeating: 0
			Cumulative Lifetime Unrecoverable Read Unique: 0
		Cum Lifetime Unrecoverable by head 4:
			Cumulative Lifetime Unrecoverable Read Repeating: 0
			Cumulative Lifetime Unrecoverable Read Unique: 0
		Cum Lifetime Unrecoverable by head 5:
			Cumulative Lifetime Unrecoverable Read Repeating: 0
			Cumulative Lifetime Unrecoverable Read Unique: 0
		Cum Lifetime Unrecoverable by head 6:
			Cumulative Lifetime Unrecoverable Read Repeating: 0
			Cumulative Lifetime Unrecoverable Read Unique: 0
		Cum Lifetime Unrecoverable by head 7:
			Cumulative Lifetime Unrecoverable Read Repeating: 0
			Cumulative Lifetime Unrecoverable Read Unique: 0
		Cum Lifetime Unrecoverable by head 8:
			Cumulative Lifetime Unrecoverable Read Repeating: 0
			Cumulative Lifetime Unrecoverable Read Unique: 0
		Cum Lifetime Unrecoverable by head 9:
			Cumulative Lifetime Unrecoverable Read Repeating: 0
			Cumulative Lifetime Unrecoverable Read Unique: 0
		Cum Lifetime Unrecoverable by head 10:
			Cumulative Lifetime Unrecoverable Read Repeating: 0
			Cumulative Lifetime Unrecoverable Read Unique: 0
		Cum Lifetime Unrecoverable by head 11:
			Cumulative Lifetime Unrecoverable Read Repeating: 0
			Cumulative Lifetime Unrecoverable Read Unique: 0
		Cum Lifetime Unrecoverable by head 12:
			Cumulative Lifetime Unrecoverable Read Repeating: 0
			Cumulative Lifetime Unrecoverable Read Unique: 0
		Cum Lifetime Unrecoverable by head 13:
			Cumulative Lifetime Unrecoverable Read Repeating: 0
			Cumulative Lifetime Unrecoverable Read Unique: 0
		Cum Lifetime Unrecoverable by head 14:
			Cumulative Lifetime Unrecoverable Read Repeating: 0
			Cumulative Lifetime Unrecoverable Read Unique: 0
		Cum Lifetime Unrecoverable by head 15:
			Cumulative Lifetime Unrecoverable Read Repeating: 0
			Cumulative Lifetime Unrecoverable Read Unique: 0
	FARM Log Page 4: Environment Statistics
		Current Temperature (Celsius): 41
		Highest Temperature: 43
		Lowest Temperature: 34
		Average Short Term Temperature: 37
		Average Long Term Temperature: 0
		Highest Average Short Term Temperature: 40
		Lowest Average Short Term Temperature: 37
		Highest Average Long Term Temperature: 0
		Lowest Average Long Term Temperature: 0
		Time In Over Temperature (minutes): 0
		Time In Under Temperature (minutes): 0
		Specified Max Operating Temperature: 60
		Specified Min Operating Temperature: 5
		Current Relative Humidity: 0
		Current Motor Power: 3329
		Current 12 volts: 0.000
		Minimum 12 volts: 0.000
		Maximum 12 volts: 0.000
		Current 5 volts: 0.000
		Minimum 5 volts: 0.000
		Maximum 5 volts: 0.000
		12V Power Average: 0.000
		12V Power Minimum: 0.000
		12V Power Maximum: 0.000
		5V Power Average: 0.000
		5V Power Minimum: 0.000
		5V Power Maximum: 0.000
	FARM Log Page 5: Reliability Statistics
		Error Rate (SMART Attribute 1 Raw): 0x0000000007024d50
		Error Rate (SMART Attribute 1 Normalized): 81
		Error Rate (SMART Attribute 1 Worst): 64
		Seek Error Rate (SMART Attr 7 Raw): 0x000000000285ba82
		Seek Error Rate (SMART Attr 7 Normalized): 76
		Seek Error Rate (SMART Attr 7 Worst): 61
		High Priority Unload Events: 1
		Helium Pressure Threshold Tripped: 0
		LBAs Corrected By Parity Sector: 0
		DVGA Skip Write Detect by Head 0: 0
		DVGA Skip Write Detect by Head 1: 0
		DVGA Skip Write Detect by Head 2: 0
		DVGA Skip Write Detect by Head 3: 0
		DVGA Skip Write Detect by Head 4: 0
		DVGA Skip Write Detect by Head 5: 0
		DVGA Skip Write Detect by Head 6: 0
		DVGA Skip Write Detect by Head 7: 0
		DVGA Skip Write Detect by Head 8: 0
		DVGA Skip Write Detect by Head 9: 0
		DVGA Skip Write Detect by Head 10: 0
		DVGA Skip Write Detect by Head 11: 0
		DVGA Skip Write Detect by Head 12: 0
		DVGA Skip Write Detect by Head 13: 0
		DVGA Skip Write Detect by Head 14: 0
		DVGA Skip Write Detect by Head 15: 0
		RVGA Skip Write Detect by Head 0: 0
		RVGA Skip Write Detect by Head 1: 0
		RVGA Skip Write Detect by Head 2: 0
		RVGA Skip Write Detect by Head 3: 0
		RVGA Skip Write Detect by Head 4: 0
		RVGA Skip Write Detect by Head 5: 0
		RVGA Skip Write Detect by Head 6: 0
		RVGA Skip Write Detect by Head 7: 0
		RVGA Skip Write Detect by Head 8: 0
		RVGA Skip Write Detect by Head 9: 0
		RVGA Skip Write Detect by Head 10: 0
		RVGA Skip Write Detect by Head 11: 0
		RVGA Skip Write Detect by Head 12: 0
		RVGA Skip Write Detect by Head 13: 0
		RVGA Skip Write Detect by Head 14: 0
		RVGA Skip Write Detect by Head 15: 0
		FVGA Skip Write Detect by Head 0: 0
		FVGA Skip Write Detect by Head 1: 0
		FVGA Skip Write Detect by Head 2: 0
		FVGA Skip Write Detect by Head 3: 0
		FVGA Skip Write Detect by Head 4: 0
		FVGA Skip Write Detect by Head 5: 0
		FVGA Skip Write Detect by Head 6: 0
		FVGA Skip Write Detect by Head 7: 0
		FVGA Skip Write Detect by Head 8: 0
		FVGA Skip Write Detect by Head 9: 0
		FVGA Skip Write Detect by Head 10: 0
		FVGA Skip Write Detect by Head 11: 0
		FVGA Skip Write Detect by Head 12: 0
		FVGA Skip Write Detect by Head 13: 0
		FVGA Skip Write Detect by Head 14: 0
		FVGA Skip Write Detect by Head 15: 0
		Skip Write Detect Threshold Exceeded by Head 0: 0
		Skip Write Detect Threshold Exceeded by Head 1: 0
		Skip Write Detect Threshold Exceeded by Head 2: 0
		Skip Write Detect Threshold Exceeded by Head 3: 0
		Skip Write Detect Threshold Exceeded by Head 4: 0
		Skip Write Detect Threshold Exceeded by Head 5: 0
		Skip Write Detect Threshold Exceeded by Head 6: 0
		Skip Write Detect Threshold Exceeded by Head 7: 0
		Skip Write Detect Threshold Exceeded by Head 8: 0
		Skip Write Detect Threshold Exceeded by Head 9: 0
		Skip Write Detect Threshold Exceeded by Head 10: 0
		Skip Write Detect Threshold Exceeded by Head 11: 0
		Skip Write Detect Threshold Exceeded by Head 12: 0
		Skip Write Detect Threshold Exceeded by Head 13: 0
		Skip Write Detect Threshold Exceeded by Head 14: 0
		Skip Write Detect Threshold Exceeded by Head 15: 0
		Write Power On (hrs) by Head 0: 3273
		Write Power On (hrs) by Head 1: 3178
		Write Power On (hrs) by Head 2: 2907
		Write Power On (hrs) by Head 3: 3326
		Write Power On (hrs) by Head 4: 2967
		Write Power On (hrs) by Head 5: 2786
		Write Power On (hrs) by Head 6: 3093
		Write Power On (hrs) by Head 7: 2834
		Write Power On (hrs) by Head 8: 3017
		Write Power On (hrs) by Head 9: 3317
		Write Power On (hrs) by Head 10: 2967
		Write Power On (hrs) by Head 11: 3104
		Write Power On (hrs) by Head 12: 2859
		Write Power On (hrs) by Head 13: 3355
		Write Power On (hrs) by Head 14: 3130
		Write Power On (hrs) by Head 15: 3489
		MR Head Resistance from Head 0: 508
		MR Head Resistance from Head 1: 450
		MR Head Resistance from Head 2: 415
		MR Head Resistance from Head 3: 453
		MR Head Resistance from Head 4: 408
		MR Head Resistance from Head 5: 364
		MR Head Resistance from Head 6: 434
		MR Head Resistance from Head 7: 432
		MR Head Resistance from Head 8: 513
		MR Head Resistance from Head 9: 432
		MR Head Resistance from Head 10: 370
		MR Head Resistance from Head 11: 481
		MR Head Resistance from Head 12: 442
		MR Head Resistance from Head 13: 408
		MR Head Resistance from Head 14: 512
		MR Head Resistance from Head 15: 334
		Second MR Head Resistance by Head 0: 0
		Second MR Head Resistance by Head 1: 0
		Second MR Head Resistance by Head 2: 0
		Second MR Head Resistance by Head 3: 0
		Second MR Head Resistance by Head 4: 0
		Second MR Head Resistance by Head 5: 0
		Second MR Head Resistance by Head 6: 0
		Second MR Head Resistance by Head 7: 0
		Second MR Head Resistance by Head 8: 0
		Second MR Head Resistance by Head 9: 0
		Second MR Head Resistance by Head 10: 0
		Second MR Head Resistance by Head 11: 0
		Second MR Head Resistance by Head 12: 0
		Second MR Head Resistance by Head 13: 0
		Second MR Head Resistance by Head 14: 0
		Second MR Head Resistance by Head 15: 0
		Number of Reallocated Sectors by Head 0: 0
		Number of Reallocated Sectors by Head 1: 0
		Number of Reallocated Sectors by Head 2: 0
		Number of Reallocated Sectors by Head 3: 0
		Number of Reallocated Sectors by Head 4: 0
		Number of Reallocated Sectors by Head 5: 0
		Number of Reallocated Sectors by Head 6: 0
		Number of Reallocated Sectors by Head 7: 0
		Number of Reallocated Sectors by Head 8: 0
		Number of Reallocated Sectors by Head 9: 0
		Number of Reallocated Sectors by Head 10: 0
		Number of Reallocated Sectors by Head 11: 0
		Number of Reallocated Sectors by Head 12: 0
		Number of Reallocated Sectors by Head 13: 0
		Number of Reallocated Sectors by Head 14: 0
		Number of Reallocated Sectors by Head 15: 0
		Number of Reallocation Candidate Sectors by Head 0: 0
		Number of Reallocation Candidate Sectors by Head 1: 0
		Number of Reallocation Candidate Sectors by Head 2: 0
		Number of Reallocation Candidate Sectors by Head 3: 0
		Number of Reallocation Candidate Sectors by Head 4: 0
		Number of Reallocation Candidate Sectors by Head 5: 0
		Number of Reallocation Candidate Sectors by Head 6: 0
		Number of Reallocation Candidate Sectors by Head 7: 0
		Number of Reallocation Candidate Sectors by Head 8: 0
		Number of Reallocation Candidate Sectors by Head 9: 0
		Number of Reallocation Candidate Sectors by Head 10: 0
		Number of Reallocation Candidate Sectors by Head 11: 0
		Number of Reallocation Candidate Sectors by Head 12: 0
		Number of Reallocation Candidate Sectors by Head 13: 0
		Number of Reallocation Candidate Sectors by Head 14: 0
		Number of Reallocation Candidate Sectors by Head 15: 0
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