replace disk in zpool
dpchrist at holgerdanske.com
Tue Mar 24 23:47:41 UTC 2020
On 2020-03-24 14:15, Lukasz wrote:
> Ohh… I forgot mention:
> it's 12.1-p3
> # zpool status -v mypool
> pool: mypool
> state: DEGRADED
> 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: resilvered 180G in 0 days 16:00:55 with 2 errors on Sun Mar 22
> 05:18:46 2020
> NAME STATE READ WRITE CKSUM
> mypool DEGRADED 0 0 2
> raidz1-0 DEGRADED 0 0 4
> diskid/DISK-WD-WMC1F0521131 ONLINE 0 0 0
> replacing-1 DEGRADED 0 0 0
> 15838717335844820448 UNAVAIL 0 0 0 was /dev/diskid/DISK-WD-WCC130964640
> diskid/DISK-K4JG5D2B ONLINE 0 0 0
> ada6 ONLINE 0 0 0
> ada1 ONLINE 0 0 0
> diskid/DISK-WD-WCC130650055 ONLINE 0 0 0
> errors: Permanent errors have been detected in the following files:
> Yes, I did exacly as you wrote - removed the failed drive, installed a replacement drive, and issued a 'zpool replace' command.
> I tried this way to:
> I disabled running services in that pool, unmounted and mounted it again. Even I exported/imported that pool.
> It has no readonly property.
> Of course I have a backup.
My guess is that resilvering is stuck because ZFS has encountered data
corruption. This could be caused by drive(s), cable(s), and/or data
port(s) (motherboard or expansion card).
What was the failure mode of the bad drive? Did you test it in any
Are the any items of concern in the SMART reports for the current set of
drives? Please post anything that looks questionable.
Unplug and plug all of your drive power and data cables. Make sure they
seat well. If unsure about a data cable, replace it with a new, locking
cable. I have experienced too many problems with red SATA cables. Few,
if any, are marked with their rated speed (I did mark some StarTech SATA
III cables). So, I stocked up on various lengths and configurations of
Cable Matters SATA III cables. They are black, marked "6G", and have
locking connectors. Now, whenever I am in a system case, I replace most
every red SATA cable just to be safe.
I appears that you have Western Digital hard drives. Download Data
Lifeguard Diagnostic (DLG) for DOS, burn it to a USB flash drive, boot
it, and test all of your drives. Please post the results:
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