Hi all,
I am using an USB memory stick as cache and log devices for a HDD ZFS
pool named tank0:
$ zpool status -v tank0
pool: tank0
state: ONLINE
scan: scrub repaired 0 in 7h19m with 0 errors on Tue Jul 30 06:11:23 2013
config:
NAME STATE READ WRITE CKSUM
tank0 ONLINE 0 0 0
ada0s1d ONLINE 0 0 0
logs
gpt/SLOG ONLINE 0 0 0
cache
gpt/L2ARC ONLINE 0 0 0
errors: No known data errors
If I remove the stick before booting the laptop (a Compaq Presario) it
will not boot with the error message:
"Mounting from zfs:tank0 failed with error 6"
end the mountroot> prompt is displayed.
I need to reinsert the stick to completing the boot process before
restarting the laptop.
It is possible to boots the laptop without stick if I remove the log
device with the command:
# zpool remove tank0 gpt/SLOG
before switching it off. The pool will works in degraded mode because
the cache device is missing, but it works.
I am able to boot the PC without a cache device but not without a log
device. Why ?
The laptop is updated to 9.2-PRERELEASE r254783.
Regards
Maurizio
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