On Feb 10, 2012, at 1:53 AM, Silver Salonen wrote:
> On Thu, 9 Feb 2012 14:58:33 -0500, Paul Mather wrote:
>> On Feb 9, 2012, at 2:21 PM, Steven Schlansker wrote:
>>> On the flip side, compression seems to be a very big win. I'm
>>> seeing ratios from 1.7 to 2.5x savings and the CPU usage is claimed to
>>> be relatively cheap.
>>
>>
>> That's what I am seeing, too. On the fileset I tried to dedup, I'm
>> currently seeing a compressratio of 1.51x, which I'm happy with for
>> that data. Enabling ZFS compression appears to have negligible
>> overheads, so having turned it on is a big win for me.
>
> I'll ask just in case - you don't have Bacula FD's compression enabled
> for these filesets which give these compression ratios, do you?
No, this is just using ZFS option "compression=gzip-9" on the fileset in the
pool.
Cheers,
Paul.
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