zpool errors

[Allan Jude]

On 2019-07-10 11:37, Daniel Braniss wrote:
> 
> 
>> On 10 Jul 2019, at 18:24, Allan Jude <allanjude at freebsd.org> wrote:
>>
>> On 2019-07-10 10:48, Daniel Braniss wrote:
>>> hi,
>>> i got a degraded pool, but can’t make sense  of the file name:
>>>
>>> protonew-2# zpool status -vx
>>> pool: h
>>> 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 <http://illumos.org/msg/ZFS-8000-8A>
>>> scan: scrub repaired 6.50K in 17h30m with 0 errors on Wed Jul 10 12:06:14 2019
>>> config:
>>>
>>>       NAME          STATE     READ WRITE CKSUM
>>>       h             ONLINE       0     0 14.4M
>>>         gpt/r5/zfs  ONLINE       0     0 57.5M
>>>
>>> errors: Permanent errors have been detected in the following files:
>>>
>>>       <0x102>:<0x30723>
>>>       <0x102>:<0x30726>
>>>       <0x102>:<0x3062a>
>>> …
>>>       <0x281>:<0x0>
>>>       <0x6aa>:<0x305cd>
>>>       <0xffffffffffffffff>:<0x305cd>
>>>
>>>
>>> any hints as how I can identify third files?
>>>
>>> thanks,
>>> 	danny
>>>
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>>>
>>
>> Once a file has been deleted, ZFS can have a hard time determining its
>> filename.
>>
>> It is inode 198186 (0x3062a) on dataset 0x102. The file has been
>> deleted, but still exists in at least one snapshot.
>>
>> Although, 57 million checksum errors seems like there may be some other
>> problem. You might look for and resolve the problem with what appears to
>> be a raid5 you have built your ZFS pool on top of it? Then do 'zpool
>> clear' to reset the counters to zero, and 'zpool scrub' to try to read
>> everything again.
>>
>> -- 
>> Allan Jude
>>
> I don’t know when the first error was detected, and this host has been up for 367 days!
> I did a scrub but no change.
> i will remove old snapshots and see if it helps.
> 
> is it possible to know at least which volume?
> 
> thanks,
> 	danny
> 
> 
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> 

zdb -ddddd h 0x102

Should tell you about which dataset that is

-- 
Allan Jude

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