Probably Hardware Trouble But What Is It?

[Mehmet Erol Sanliturk]

On Sat, Dec 6, 2014 at 4:58 PM, Drew Tomlinson <drew at mykitchentable.net>
wrote:

> I'm running FBS 9.1 RELEASE that I built several years ago.  It's mostly a
> Samba server and has "just worked" so I've never done much more with it.
> However recently, I find it "locked up" with thousands of these messages on
> the console:
>
> kernel: kern.maxfiles limit exceeded by uid 0, please see tuning(7)
>
> I've looked in /var/log/messages and also see lots of messages like these:
>
> Dec  6 13:55:53 vm kernel: siisch0:  ... waiting for slots 18000000
> Dec  6 13:55:53 vm kernel: siisch0: Timeout on slot 28
> Dec  6 13:55:53 vm kernel: siisch0: siis_timeout is 00040000 ss 78000000
> rs 78000000 es 00000000 sts 801b0000 serr 00000000
> Dec  6 13:55:53 vm kernel: siisch0:  ... waiting for slots 08000000
> Dec  6 13:55:55 vm kernel: siisch0: Timeout on slot 27
> Dec  6 13:55:55 vm kernel: siisch0: siis_timeout is 00040000 ss 78000000
> rs 78000000 es 00000000 sts 801b0000 serr 00000000
> Dec  6 13:55:55 vm kernel: (ada0:siisch0:0:0:0): FLUSHCACHE48. ACB: ea 00
> 00 00 00 40 00 00 00 00 00 00
> Dec  6 13:55:55 vm kernel: (ada0:siisch0:0:0:0): CAM status: Command
> timeout
> Dec  6 13:55:55 vm kernel: (ada0:siisch0:0:0:0): Retrying command
> Dec  6 13:55:55 vm kernel: (ada0:siisch0:0:0:0): READ_FPDMA_QUEUED. ACB:
> 60 01 fe d8 74 40 39 00 00 00 00 00
> Dec  6 13:55:55 vm kernel: (ada0:siisch0:0:0:0): CAM status: Command
> timeout
> Dec  6 13:55:55 vm kernel: (ada0:siisch0:0:0:0): Retrying command
> Dec  6 13:55:55 vm kernel: (ada0:siisch0:0:0:0): READ_FPDMA_QUEUED. ACB:
> 60 0a a5 7f 00 40 4c 00 00 00 00 00
>
> This machine uses zfs.  I have two pools:
>
> # zpool list
> NAME    SIZE  ALLOC   FREE    CAP  DEDUP  HEALTH  ALTROOT
> zback  1.81T   848G  1008G    45%  1.00x  ONLINE  -
> zroot  1.81T  1.16T   666G    64%  1.00x  ONLINE  -
>
> Then I tried this and my ssh window is now stuck:
>
> # zpool status
>   pool: zback
>  state: ONLINE
> status: One or more devices are faulted in response to IO failures.
> action: Make sure the affected devices are connected, then run 'zpool
> clear'.
>    see: http://illumos.org/msg/ZFS-8000-HC
>   scan: none requested
> config:
>
>         NAME        STATE     READ WRITE CKSUM
>         zback       ONLINE       3     0     0
>           ada0      ONLINE       4     0     0
>
> I opened another ssh window and tried 'zpool clear zback' as suggested but
> it appears stuck too.
>
> I'm sure I haven't provided all the relevant information so please ask and
> I will do so.  I'd appreciate any guidance on how to take a proper backup
> of ada0 and what I should do next.  I think this zback pool is just the one
> disk which is a 2TB drive.  I'd like to know how to confirm that if
> possible since it seems the zpool commands aren't able to complete.
>
> I appreciate any suggestions or guidance.
>
> Thanks,
>
> Drew
>
> --
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>
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>
> _______________________________________________
>
>

Cable connectors may be oxidized and lost signal transmission capability .
Please check by replacing connection cables with new and good quality ones .

Thank you very much .

Mehmet Erol Sanliturk