March 2010

power failure and gmirror

From this morning’s log after a weekend power failure: Mar 15 09:15:45 subie kernel: GEOM_MIRROR: Device gm0: rebuilding provider ad8 finished. Mar 15 09:20:58 subie fsck: /dev/mirror/gm0s1f: UNREF FILE I=35 OWNER=root MODE=100400 Mar 15 09:20:58 subie fsck: /dev/mirror/gm0s1f: SIZE=151568652480 MTIME=Mar 13 16:03 2010 (CLEARED) Mar 15 09:20:58 subie fsck: /dev/mirror/gm0s1f: UNREF FILE I=15356429 OWNER=dan MODE=100644

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NRPE: Unable to read output

After rebooting kraken to take a photo, I found nagios was displaying an error for my smartmon checks: NRPE: Unable to read output. Running the command by hand on the nagios server, I found: $ /usr/local/libexec/nagios/check_nrpe2 -H kraken -c check_smartmon_ad24 NRPE: Unable to read output But from the remote server I got: # /usr/local/libexec/nagios/check_smartmon -d

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The smartmontools package contains two utility programs (smartctl and smartd) to control and monitor storage systems using the Self-Monitoring, Analysis and Reporting Technology System (SMART) built into most modern ATA and SCSI harddisks. In many cases, these utilities will provide advanced warning of disk degradation and failure. (The above shamelessly taken from the supplied URL).

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ZFS – some initial testing

I thought I’d run some simple tests, based on a tuning thread I found: # dd if=/dev/urandom of=./file1 bs=1m count=1024 1024+0 records in 1024+0 records out 1073741824 bytes transferred in 14.283206 secs (75175127 bytes/sec) And while the above was running: # zpool iostat 5 capacity operations bandwidth pool used avail read write read write ———-

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mirroring the hard drive

Tonight’s goals: Install a second HDD get gmirror running install the remaining 5x2TB HDD add the two RAID cards After adding in the second HDD for the OS, dmesg shows this: ad4: 76319MB <seagate ST380815AS 4.AAB> at ata2-master UDMA100 SATA 3Gb/s acd0: DVDR <tsstcorp CDDVDW SH-S223C/SB01> at ata3-master UDMA100 SATA 1.5Gb/s ad8: 152587MB <wdc WD1600AAJS-75M0A0

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