Feb 082013
 

Do you have Seagate ST2000DM001? This 2TB drives seems OK at straight dd output, but seems absolutely terrible at random output. If you have one, and do not mind this destructive test (IT WILL DESTROY ANY DATA ON THAT DRIVE), please let me know the results.

The reason I ask is the very slow results we’re getting from a tool designed to test the throughput of an HDD based on writing data at various offsets. This helps to determine the physical block size of the device and judge throughput.

You can see the discussion and the results of my testing in my G+ post.

svn co http://svn.freebsd.org/base/user/des/phybs
cd phybs
make
sudo ./phybs -rw -l 4096 -h 4096 /dev/YOURDEVICENAME

The output I’m getting is:

   count    size  offset    step        msec     tps    kBps

   32768    4096       0   16384       79116     414    1656
   32768    4096     512   16384      102359     320    1280
   32768    4096    1024   16384      225882     145     580
   32768    4096    2048   16384      221047     148     592

1.6 MB/s is simply terrible. Please post your results in the comments. Thank you.

11:01 AM

Lots of details:

 $ sudo smartctl -a /dev/ada2
smartctl 6.0 2012-10-10 r3643 [FreeBSD 9.1-RELEASE amd64] (local build)
Copyright (C) 2002-12, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Seagate Barracuda 7200.14 (AF)
Device Model:     ST2000DM001-1CH164
Serial Number:    Z1E24L38
LU WWN Device Id: 5 000c50 04f03a249
Firmware Version: CC24
User Capacity:    2,000,398,934,016 bytes [2.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ATA8-ACS T13/1699-D revision 4
SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 3.0 Gb/s)
Local Time is:    Fri Feb  8 16:00:35 2013 UTC

==< WARNING: A firmware update for this drive may be available,
see the following Seagate web pages:
http://knowledge.seagate.com/articles/en_US/FAQ/207931en
http://knowledge.seagate.com/articles/en_US/FAQ/223651en

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:  (0x00) Offline data collection activity
                                        was never started.
                                        Auto Offline Data Collection: Disabled.
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:                (   80) seconds.
Offline data collection
capabilities:                    (0x73) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        No 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:        ( 219) minutes.
Conveyance self-test routine
recommended polling time:        (   2) minutes.
SCT capabilities:              (0x3085) SCT Status 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   101   100   006    Pre-fail  Always       -       3642680
  3 Spin_Up_Time            0x0003   099   099   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       3
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   100   253   030    Pre-fail  Always       -       76293
  9 Power_On_Hours          0x0032   100   100   000    Old_age   Always       -       4
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       3
183 Runtime_Bad_Block       0x0032   100   100   000    Old_age   Always       -       0
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
188 Command_Timeout         0x0032   100   100   000    Old_age   Always       -       0 0 0
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   074   073   045    Old_age   Always       -       26 (Min/Max 16/27)
191 G-Sense_Error_Rate      0x0032   100   100   000    Old_age   Always       -       0
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       3
193 Load_Cycle_Count        0x0032   100   100   000    Old_age   Always       -       8
194 Temperature_Celsius     0x0022   026   040   000    Old_age   Always       -       26 (0 16 0 0 0)
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
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       0h+14m+52.945s
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       1048576
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       1048873

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.

11:04 AM

Yes, we have new firmware available as pointed out by Brodey Dover.

1:25 PM

I wish to highlight the following from the above smartctl output:

==< WARNING: A firmware update for this drive may be available,
see the following Seagate web pages:
http://knowledge.seagate.com/articles/en_US/FAQ/207931en
http://knowledge.seagate.com/articles/en_US/FAQ/223651en

It also seems that I can update the firmware using a bootable CD.

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  4 Responses to “Do you have a Seagate ST2000DM001?”

  1. I can’t run a destructive test on mine, but it does appear to have much newer firmware

    #smartctl -a /dev/pass0
    smartctl 5.42 2011-10-20 r3458 [FreeBSD 9.0-RELEASE-p3 amd64] (local build)
    Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net

    === START OF INFORMATION SECTION ===
    Device Model: ST2000DM001-1CH164
    Serial Number: Z1E1DWCZ
    LU WWN Device Id: 5 000c50 04e53a5ef
    Firmware Version: CC43
    User Capacity: 2,000,398,934,016 bytes [2.00 TB]
    Sector Sizes: 512 bytes logical, 4096 bytes physical
    Device is: Not in smartctl database [for details use: -P showall]
    ATA Version is: 8
    ATA Standard is: ATA-8-ACS revision 4
    Local Time is: Sun Feb 10 05:40:23 2013 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: (0x00) Offline data collection activity
    was never started.
    Auto Offline Data Collection: Disabled.
    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: ( 592) seconds.
    Offline data collection
    capabilities: (0x73) SMART execute Offline immediate.
    Auto Offline data collection on/off support.
    Suspend Offline collection upon new
    command.
    No 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: ( 224) minutes.
    Conveyance self-test routine
    recommended polling time: ( 2) minutes.
    SCT capabilities: (0x3085) SCT Status 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 119 100 006 Pre-fail Always – 205725520
    3 Spin_Up_Time 0x0003 098 098 000 Pre-fail Always – 0
    4 Start_Stop_Count 0x0032 100 100 020 Old_age Always – 4
    5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail Always – 0
    7 Seek_Error_Rate 0x000f 063 060 030 Pre-fail Always – 2049760
    9 Power_On_Hours 0x0032 097 097 000 Old_age Always – 3336
    10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always – 0
    12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always – 4
    183 Runtime_Bad_Block 0x0032 100 100 000 Old_age Always – 0
    184 End-to-End_Error 0x0032 100 100 099 Old_age Always – 0
    187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always – 0
    188 Command_Timeout 0x0032 100 100 000 Old_age Always – 0
    189 High_Fly_Writes 0x003a 097 097 000 Old_age Always – 3
    190 Airflow_Temperature_Cel 0x0022 078 072 045 Old_age Always – 22 (Min/Max 17/28)
    191 G-Sense_Error_Rate 0x0032 100 100 000 Old_age Always – 0
    192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always – 4
    193 Load_Cycle_Count 0x0032 100 100 000 Old_age Always – 4
    194 Temperature_Celsius 0x0022 022 040 000 Old_age Always – 22 (0 17 0 0 0)
    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
    240 Head_Flying_Hours 0x0000 100 253 000 Old_age Offline – 220851513330952
    241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline – 8922361600
    242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline – 59140631

    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.

  2. A follow up: No, there was no firmware upgrade available.

  3. Isn’t it slow because of mis-alignment of the 4k sectors? When you have a 4k sector drive, like this one, you need to align all writes to multiples of 8 512 byte sectors.

    • The purpose of phybs is to find out if the drive is affected by block alignment and by what block size. One would expect the fastest throughput with the best alignment. In this case the highest throughput is 1656 kBps (or about 1.6 MB/s) with block size 4096 with offset zero 0.

      And that’s just terrible.

      Unfortunately, I can do no more tests on this drive. They’ve all been sent back.