Hello Mike,

Am 20.05.2011 19:48, schrieb Mike Seda:
> 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.

i think you should use the parameter "Volume Use Duration" or "Use
Volume Once". The Parameter "Maximum Volume Bytes" make only sense if
your are using a DVD as media.

> 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.

Regards, Dennis

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