Bacula-users

Re: [Bacula-users] Way to check ANY bacula volume on disk

2015-08-11 08:31:11
Subject: Re: [Bacula-users] Way to check ANY bacula volume on disk
From: Kern Sibbald <kern AT sibbald DOT com>
To: Heitor Faria <heitor AT bacula.com DOT br>, Andrey Tataranovich <tataranovich AT gmail DOT com>
Date: Tue, 11 Aug 2015 14:29:32 +0200
Hello Heitor,

Sorry, but in this case, this is a checksum error (the checksum in the
header of the block does not correspond to the checksum of the actual
block data that was read) and not a number of EOF marks error.  The EOF
mismatch is basically a synchronization error between the volume and the
catalog.  However, in this case, it is most likely a disk corruption
problem. 

Best regards,
Kern

On 11.08.2015 14:18, Heitor Faria wrote:
> "Error: block.c:318 Volume data error at 2:1331430350!
> Block checksum mismatch in block=153792 len=64512: calc=782b2290
> blk=5201271d"
>
> Those are not filesystem errors but lack of sync between what Bacula Catalog 
> expects and the actual file volumes.
> You could run a preventive bscan to fix that, but I think it's much better to 
> deal with the root cause of this, that would be abruptly terminating backup 
> jobs (e.g.: restart daemons with jobs running on it, power shortage etc.).
> You should check Bacula logs to figure it out.
>
> Regards,
> ======================================================================= 
> Heitor Medrado de Faria - LPIC-III | ITIL-F | Bacula Systems Certified 
> Administrator II 
> Treinamento Telepresencial Bacula Início 5 de agosto: 
> http://www.bacula.com.br/?p=2174 
> 61 8268-4220 
> Site: www.bacula.com.br | Facebook: heitor.faria 
> ========================================================================
>
> ----- Original Message -----
>> From: "Andrey Tataranovich" <tataranovich AT gmail DOT com>
>> To: bacula-users AT lists.sourceforge DOT net
>> Sent: Tuesday, August 11, 2015 8:46:24 AM
>> Subject: Re: [Bacula-users] Way to check ANY bacula volume on disk
>> On Tue, 11 Aug 2015 07:05:14 -0400
>> Josh Fisher <jfisher AT pvct DOT com> wrote:
>>
>>> Bacula volumes are just normal files. You could periodically check
>>> the filesystem with e2fsck or whatever tool is used for the
>>> filesystem you are using.
>> I already tried to run fsck on bacula volume when error occured, but
>> found no error. e2fsck checks only filesystem metadata consistency but
>> not data. So errors inside volume files (uncorrectable bit errors as
>> example) will be not found by this tool.
>>
>> --
>> WBR, Andrey Tataranovich
>>
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