#diskutil eraseDisk 'ZFS Pool' '%noformat%' /dev/rdisk2 #zpool create tank /dev/disk2s2
# zpool status no pools available
# mkdir /tmp/test # mkfile 100m /tmp/test/a # zpool create tank /tmp/test/a
# zpool status pool: tank state: ONLINE scan: none requested config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 /tmp/test/a ONLINE 0 0 0 errors: No known data errors # zpool list NAME SIZE ALLOC FREE CAP HEALTH ALTROOT tank 95.5Mi 77.5Ki 95.4Mi 0% ONLINE -
# cp /sbin/* /Volumes/tank/ # zpool list NAME SIZE ALLOC FREE CAP HEALTH ALTROOT tank 95.5Mi 3.83Mi 91.7Mi 4% ONLINE -
# rm -rf /Volumes/tank/* zsh: sure you want to delete all the files in /Volumes/tank [yn]? y # zpool list NAME SIZE ALLOC FREE CAP HEALTH ALTROOT tank 95.5Mi 5.32Mi 90.2Mi 5% ONLINE -
# sync # zpool list NAME SIZE ALLOC FREE CAP HEALTH ALTROOT tank 95.5Mi 327Ki 95.2Mi 0% ONLINE -
# zfs set compression=gzip-9 tank # cp /sbin/* /Volumes/tank/ # zpool list NAME SIZE ALLOC FREE CAP HEALTH ALTROOT tank 95.5Mi 1.20Mi 94.3Mi 1% ONLINE -
# mkfile 100m /tmp/test/b # zpool attach tank /tmp/test/a /tmp/test/b # zpool status pool: tank state: ONLINE scan: resilvered 1.83Mi in 0h0m with 0 errors on Thu Oct 11 13:22:33 2012 config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 /tmp/test/a ONLINE 0 0 0 /tmp/test/b ONLINE 0 0 0 errors: No known data errors
# zpool export tank # dd if=/dev/random of=/tmp/test/b count=10 bs=1m conv=notrunc 10+0 records in 10+0 records out 10485760 bytes transferred in 1.722770 secs (6086570 bytes/sec)
# zpool import -d /tmp/test tank # zpool status pool: tank state: ONLINE status: One or more devices has experienced an unrecoverable error. An attempt was made to correct the error. Applications are unaffected. action: Determine if the device needs to be replaced, and clear the errors using 'zpool clear' or replace the device with 'zpool replace'. scan: scrub repaired 0 in 0h0m with 0 errors on Thu Oct 11 13:35:17 2012 config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 /private/tmp/test/a ONLINE 0 0 0 /private/tmp/test/b ONLINE 0 0 11 errors: No known data errors
# zpool scrub tank # zpool status pool: tank state: ONLINE status: One or more devices has experienced an unrecoverable error. An attempt was made to correct the error. Applications are unaffected. action: Determine if the device needs to be replaced, and clear the errors using 'zpool clear' or replace the device with 'zpool replace'. scan: scrub repaired 1.58Mi in 0h0m with 0 errors on Thu Oct 11 13:38:15 2012 config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 /private/tmp/test/a ONLINE 0 0 0 /private/tmp/test/b ONLINE 0 0 135 errors: No known data errors # zpool clear tank
# zpool scrub tank # zpool status pool: tank state: ONLINE scan: scrub repaired 1.59Mi in 0h0m with 0 errors on Thu Oct 11 14:54:24 2012 config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 /private/tmp/test/a ONLINE 0 0 0 /private/tmp/test/b ONLINE 0 0 0 errors: No known data errors
# zpool detach tank /private/tmp/test/b # zpool export tank # dd if=/dev/random of=/tmp/test/a count=10 bs=1m conv=notrunc 10+0 records in 10+0 records out 10485760 bytes transferred in 1.721552 secs (6090877 bytes/sec) # zpool import -d /tmp/test tank
# zpool import -d /tmp/test tank # zpool status pool: tank state: ONLINE status: One or more devices has experienced an error resulting in data corruption. Applications may be affected. action: Restore the file in question if possible. Otherwise restore the entire pool from backup. scan: scrub repaired 1.59Mi in 0h0m with 0 errors on Thu Oct 11 14:54:24 2012 config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 15 /private/tmp/test/a ONLINE 0 0 72 errors: 15 data errors, use '-v' for a list
# zpool scrub tank # sudo zpool status -v pool: tank state: ONLINE status: One or more devices has experienced an error resulting in data corruption. Applications may be affected. action: Restore the file in question if possible. Otherwise restore the entire pool from backup. scan: scrub repaired 24.5Ki in 0h0m with 87 errors on Thu Oct 11 15:01:44 2012 config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 102 /private/tmp/test/a ONLINE 0 0 276 errors: Permanent errors have been detected in the following files: /Volumes/tank/SystemStarter /Volumes/tank/autodiskmount /Volumes/tank/disklabel . . . /Volumes/tank/newfs_msdos /Volumes/tank/newfs_udf
# sum /Volumes/tank/* sum: /Volumes/tank/SystemStarter: Input/output error sum: /Volumes/tank/autodiskmount: Input/output error . . . 29849 58 /Volumes/tank/shutdown 58965 45 /Volumes/tank/umount
# cp /sbin/* /Volumes/tank/ # zpool scrub tank # sudo zpool status -v tank pool: tank state: ONLINE status: One or more devices has experienced an error resulting in data corruption. Applications may be affected. action: Restore the file in question if possible. Otherwise restore the entire pool from backup. scan: scrub repaired 0 in 0h0m with 2 errors on Thu Oct 11 15:26:20 2012 config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 144 /private/tmp/test/a ONLINE 0 0 330 errors: Permanent errors have been detected in the following files: /Volumes/tank/.fseventsd/00000000001c3081 /Volumes/tank/.fseventsd/00000000001c3082 # sudo rm /Volumes/tank/.fseventsd/00000000001c3081 # sudo rm /Volumes/tank/.fseventsd/00000000001c3082
# sudo zpool status -v pool: tank state: ONLINE status: One or more devices has experienced an error resulting in data corruption. Applications may be affected. action: Restore the file in question if possible. Otherwise restore the entire pool from backup. scan: scrub repaired 0 in 0h0m with 2 errors on Thu Oct 11 15:26:20 2012 config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 144 /private/tmp/test/a ONLINE 0 0 330 errors: Permanent errors have been detected in the following files: tank:<0x46> tank:<0x47>
# zpool scrub tank # sudo zpool status -v pool: tank state: ONLINE status: One or more devices has experienced an unrecoverable error. An attempt was made to correct the error. Applications are unaffected. action: Determine if the device needs to be replaced, and clear the errors using 'zpool clear' or replace the device with 'zpool replace'. scan: scrub repaired 0 in 0h0m with 0 errors on Thu Oct 11 15:27:15 2012 config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 144 /private/tmp/test/a ONLINE 0 0 330 errors: No known data errors
# zpool clear tank # zpool scrub tank # zpool status pool: tank state: ONLINE scan: scrub repaired 0 in 0h0m with 0 errors on Thu Oct 11 15:34:08 2012 config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 /private/tmp/test/a ONLINE 0 0 0 errors: No known data errors
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