no resilvering?

[jyavenard]

It's the 2nd time it happens now.

This morning I found my pool degraded.

# zpool list
NAME SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT
pool 21.8T 12.1T 9.68T 55% 1.00x DEGRADED /mnt
pool2 21.8T 8.23T 13.5T 37% 1.00x ONLINE /mnt

a closer look:

# zpool status
pool: pool
state: DEGRADED
status: One or more devices could not be opened. Sufficient replicas exist for
the pool to continue functioning in a degraded state.
action: Attach the missing device and online it using 'zpool online'.
see: http://illumos.org/msg/ZFS-8000-2Q
scan: none requested
config:

NAME STATE READ WRITE CKSUM
pool DEGRADED 0 0 0
raidz2-0 DEGRADED 0 0 0
gptid/8a8895c4-5f18-11e3-a69e-002590875a70.eli ONLINE 0 0 0
gptid/8b7350eb-5f18-11e3-a69e-002590875a70.eli ONLINE 0 0 0
gptid/8c589b7d-5f18-11e3-a69e-002590875a70.eli ONLINE 0 0 0
gptid/8d3e06ab-5f18-11e3-a69e-002590875a70.eli ONLINE 0 0 0
317232663093945064 UNAVAIL 0 0 0 was /dev/gptid/8e26c1d2-5f18-11e3-a69e-002590875a70.eli
gptid/8f0c4073-5f18-11e3-a69e-002590875a70.eli ONLINE 0 0 0

I had been playing with creating a pool then, and likely related to my report in https://bugs.freenas.org/issues/3628

e.g. don't try to select an existing used disk when using auto-import.

The weird thing however, is that I just made the disk online once again:

# zpool online pool /dev/gptid/8e26c1d2-5f18-11e3-a69e-002590875a70.eli
# zpool status
pool: pool
state: ONLINE
scan: none requested
config:

NAME STATE READ WRITE CKSUM
pool ONLINE 0 0 0
raidz2-0 ONLINE 0 0 0
gptid/8a8895c4-5f18-11e3-a69e-002590875a70.eli ONLINE 0 0 0
gptid/8b7350eb-5f18-11e3-a69e-002590875a70.eli ONLINE 0 0 0
gptid/8c589b7d-5f18-11e3-a69e-002590875a70.eli ONLINE 0 0 0
gptid/8d3e06ab-5f18-11e3-a69e-002590875a70.eli ONLINE 0 0 0
gptid/8e26c1d2-5f18-11e3-a69e-002590875a70.eli ONLINE 0 0 0
gptid/8f0c4073-5f18-11e3-a69e-002590875a70.eli ONLINE 0 0 0

errors: No known data errors

and that was it...

there was not extensive disk activity or any resilvering.. pool went back to online status just like that...

A know zfs is very efficient at resilvering, but *that* efficient ?

Edit: ohhh... I did resilver:

resilvered 614M in 0h0m with 0 errors on Mon Dec 9 09:01:23 2013

and it only showed after a reboot

 

[dlavigne]

Did you ever get this sorted?

 

[jyavenard]

Hi

I never attempted to reproduce the issue, but I didn't see anything in the git log that would indicate a proper resolution to this issue.

This occurs when you import an encrypted pool and then reboot.