For what it's worth, I have a similar amount of data and settled on a "Maximum
Volume Bytes" of 200G which has been working without any issues for a few
months now.
Cheers,
Ewan
> -----Original Message-----
> From: Mike Seda [mailto:maseda AT stanford DOT edu]
> Sent: 20 May 2011 18:49
> To: Bacula Users
> Subject: [Bacula-users] Maximum Volume Bytes
>
> Hi All,
> I'm currently setting up a disk-based storage pool in Bacula and am
> wondering what I should set "Maximum Volume Bytes" to. I was thinking
> of
> setting it to "100G", but am just wondering if this is sane.
>
> FYI, the total data of our clients is 15 TB, but we are told that this
> data should at least double each year.
>
> I noticed that there seems to be a limit on the number of disk-based
> volumes in a pool due to the suffix having 4 digits, i.e. 0001. This
> adds up to about 10,000 possible volumes per pool. So 10,000 volumes x
> 100 GB is 1 PB. That seems like overkill. Perhaps setting "Maximum
> Volume Bytes = 10G" would be more reasonable since this would add up to
> 100 TB.
>
> I'm also storing these file volumes on ZFS (v28 w/ dedup=on), and am
> wondering if smaller volumes will dedup better than larger ones. I'm
> curious to see what others are doing to take advantage of dedup-enabled
> ZFS storage w/ Bacula.
>
> Thanks,
> Mike
>
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