On Sun, Apr 12, 2020 at 06:38:10PM +0200, Stefan Bethke wrote:

> 
> 
> > Am 12.04.2020 um 18:31 schrieb Slawa Olhovchenkov <[email protected]>:
> > 
> > On Sun, Apr 12, 2020 at 06:24:09PM +0200, Stefan Bethke wrote:
> > 
> >> Am 12.04.2020 um 17:43 schrieb Slawa Olhovchenkov <[email protected]>:
> >>> 
> >>> On Sun, Apr 12, 2020 at 04:37:06PM +0200, Stefan Bethke wrote:
> >>> 
> >>>> I have a server I don't have physical access to right now, which has a 
> >>>> broken SATA disk that produces mostly errors (but not entirely).
> >>>> 
> >>>> The disk has two partitions that are part of a zpool each. I can't bring 
> >>>> the system up with this disk being online, because ZFS is trying its 
> >>>> darndest to use it.
> >>>> 
> >>>> I already renamed the GPT partitions in the hope that ZFS would not find 
> >>>> them anymore, but it does.
> >>>> 
> >>>> I can't gpart destroy -f ada1 because "device busy".
> >>>> 
> >>>> Is there a way, ideally in the loader, to tell the kernel to ignore ada1 
> >>>> and/or ahcich5? Or can I force ZFS some other way to ignore the disk? I 
> >>>> do have a spare disk I can use to replace the failed one, but I can't 
> >>>> get the machine into a state where I could even issue the zpool replace 
> >>>> command.
> >>> 
> >>> `zpool offline pool device` if you have enoght redundancy?
> >> 
> >> I do, but the command doesn't return. Instead, I'm getting loads of sata 
> >> error message.
> > 
> > What you zpool configuration?
> 
> This is from the working system. The identifiers are slightly different, but 
> the structure is identical.

what about `zpool detach <pool> <device>` ?

> # zpool status
>   pool: data
>  state: ONLINE
> status: Some supported features are not enabled on the pool. The pool can
>       still be used, but some features are unavailable.
> action: Enable all features using 'zpool upgrade'. Once this is done,
>       the pool may no longer be accessible by software that does not support
>       the features. See zpool-features(7) for details.
>   scan: resilvered 176K in 0 days 00:01:28 with 0 errors on Sun May 26 
> 21:24:54 2019
> config:
> 
>       NAME              STATE     READ WRITE CKSUM
>       data              ONLINE       0     0     0
>         mirror-0        ONLINE       0     0     0
>           gpt/ls0data   ONLINE       0     0     0
>           gpt/ls1data   ONLINE       0     0     0
>       logs
>         gpt/data0log    ONLINE       0     0     0
>       cache
>         gpt/data0cache  ONLINE       0     0     0
> 
> errors: No known data errors
> 
>   pool: ls-host
>  state: ONLINE
> status: Some supported features are not enabled on the pool. The pool can
>       still be used, but some features are unavailable.
> action: Enable all features using 'zpool upgrade'. Once this is done,
>       the pool may no longer be accessible by software that does not support
>       the features. See zpool-features(7) for details.
>   scan: scrub repaired 0 in 0 days 00:06:33 with 0 errors on Sun Apr 12 
> 11:46:25 2020
> config:
> 
>       NAME              STATE     READ WRITE CKSUM
>       ls-host           ONLINE       0     0     0
>         mirror-0        ONLINE       0     0     0
>           gpt/ls0host   ONLINE       0     0     0
>           gpt/ls1host   ONLINE       0     0     0
>       logs
>         gpt/host0log    ONLINE       0     0     0
>       cache
>         gpt/host0cache  ONLINE       0     0     0
> 
> errors: No known data errors
> 
> 
> --
> Stefan Bethke <[email protected]>   Fon +49 151 14070811
> 


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