ZFS with errors

[Trond Endrestøl]

On Wed, 13 Apr 2016 14:52+0200, Luciano Mannucci wrote:

> 
> Hello all,
> 
> I'm testing ZFS, so please forgive me for my dumb questions...
> I have a pool with a zfs filesystem that shows erors. I tried to get
> rid of them by removing the files listed by zpool status -v and
> restoring without seeing anything different.
> I tried with zpool scrub <mypool> and got only more errors.
> My situation now is:
> root at vodka:~ # zpool status -v
>   pool: expool1
>  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 7h29m with 9 errors on Fri Apr  8 20:09:47 2016
> config:
> 
> 	NAME                                          STATE     READ WRITE CKSUM
> 	expool1                                       ONLINE       0     0    10
> 	  gptid/8ccea78c-05ef-4a3a-9502-4106ca736958  ONLINE       0     0     8
> 	  gptid/864c27ea-ecd2-4cf9-9450-1afad9065fa1  ONLINE       0     0     0
> 	  diskid/DISK-WD-WCC4M2780110s3               ONLINE       0     0     0
> 	  diskid/DISK-WD-WCC4M2780110s1               ONLINE       0     0    12
> 
> errors: Permanent errors have been detected in the following files:
> 
>         expool1/mirrors:<0x600>
>         /var/spool/mirrors/mageia/distrib/4/x86_64/media/core/release/kde4-style-bespin-icons-0.1-0.1649svn.1.mga4.noarch.rpm
>         /var/spool/mirrors/mageia/distrib/4/x86_64/media/core/release/lilypond-doc-2.18.0-1.mga4.noarch.rpm
>         /var/spool/mirrors/mageia/distrib/4/x86_64/media/core/updates/wesnoth-data-1.10.7-2.1.mga4.noarch.rpm
>         expool1/mirrors:<0x6dba>
> root at vodka:~ # 
> 
> 
> is there a way to see which "9 errors" did scrub find?
> what I'm I suposed to do to clear the situation?

Try:

  zpool clear expool1
  zpool scrub expool1

Let the scrub finish.

If the same three files reappears, then refetch those files.
The lines ending with a hexadecimal number represents deleted files, 
as far as I know.

Once you have mended your files, run "clear" and "scrub" one more 
time.

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