On 4/18/22 13:06, Default User wrote:
Finally, fun fact: Many years ago, at a local Linux user group meeting, Sun Microsystems put on a demonstration of their ZFS filesystem. To prove how robust it was, they pulled the power cord out of the wall socket on a running desktop computer. Then they plugged the cord back in and re-booted, with no problems! Yes, I was impressed.
I bumped the USB cable of an external HDD while doing a ZFS incremental replication from my server to a backup disk. The backup pool was corrupted:
2022-03-28 18:16:25 toor@f1 ~
# zpool status -v z6000b
pool: z6000b
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.
see: http://illumos.org/msg/ZFS-8000-8A
scan: scrub repaired 0 in 0 days 09:36:15 with 0 errors on Mon Mar 28
00:09:09 2022
config:
NAME STATE READ WRITE CKSUM
z6000b ONLINE 0 0 0
gpt/z6000b.eli ONLINE 0 0 0
cache
gpt/z60a.eli ONLINE 0 0 0
errors: Permanent errors have been detected in the following files:
<metadata>:<0x0>
<metadata>:<0x39>
I bought a SATA 6 Gbps drive rack:
https://www.startech.com/en-us/hdd/drw150satbk
destroyed the backup pool, recreated the backup pool, and did a full
replication.
David