Re: [Bacula-users] Storage Daemon stopped with NFS mounted storage

2021-10-04 Thread Josh Fisher 


On 10/2/21 2:52 AM, Shaligram Bhagat, Yateen (Nokia - IN/Bangalore) wrote:


Hi All,

We are using Bacula 9.4.4 with PostGreSQL for disk based backeup.

Disk space is available to Bacula storage daemon as an NFS mount from 
a remote ZFS based filer that has RAID configured disks.


Recently one of the disk in the RAID array failed, degrading the 
remote ZFS pool.




With NFS, file system caching is on the server hosting the ZFS 
filesystem. Additionally, there is data and metadata caching on the 
client. Data updates are asynchronous, but metadata updates are 
synchronous. Due to the synchronous metadata updates, both data and 
metadata updates persist across NFS client failure. However they do not 
persist across NFS server failure, and that is what happened here, I 
think, although it is not clear why a single disk failure in a RAID 
array would cause an NFS failure.


In short, iSCSI will be less troublesome for use with Bacula SD, since 
the Bacula SD machine will be the only client using the share anyway.




Later we observed the Bacula storage daemon in stopped state.

Question is  : can the disturbance on the NFS mounted disk ( from the 
remote ZFS based filer) make bacula-sd to stop?




If you mean bacula-sd crashed, then no, it should not crash if one of 
its storage devices fails.




Thanks

Yateen



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Re: [Bacula-users] Volumes with ERROR status

2021-10-04 Thread Martin Simmons 
> On Sat, 2 Oct 2021 05:52:21 +, "Shaligram Bhagat, Yateen (Nokia said:
> 
> We are using Bacula 9.4.4 with PostGreSQL for disk based backeup
> 
> Recently I observed many volumes with volstatus ERROR.
> I just wonder as to when when Bacula marks a volume with ERROR .

The bacula log will contain messages about why it marks a volume with ERROR.

__Martin


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Re: [Bacula-users] Volumes with ERROR status

2021-10-04 Thread Radosław Korzeniewski 
Hello,

sob., 2 paź 2021 o 08:08 Shaligram Bhagat, Yateen (Nokia - IN/Bangalore) <
yateen.shaligram_bha...@nokia.com> napisał(a):

> Hi All,
>
>
>
> We are using Bacula 9.4.4 with PostGreSQL for disk based backeup
>
>
>
> Recently I observed many volumes with volstatus ERROR.
>
> I just wonder as to when when Bacula marks a volume with ERROR .
>

For a numerous reasons, i.e. It cannot read from the volume and get IO
Error.

best regards
-- 
Radosław Korzeniewski
rados...@korzeniewski.net
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