Wow, not bad!
What is your CPU penalty for enabling compression?
Sigbjorn
On Wed, August 18, 2010 14:11, Paul Kraus wrote:
> On Wed, Aug 18, 2010 at 7:51 AM, Peter Tribble <peter.trib...@gmail.com>
> wrote:
>
>
>> I tried this with NetBackup, and decided against it pretty rapidly.
>> Basically, we
>> got hardly any dedup at all. (Something like 3%; compression gave us much
>> better results.) Tiny
>> changes in block alignment completely ruin the possibility of significant
>> benefit.
>
> We are using Netbackup with ZFS Disk Stage under Solaris 10U8,
> no dedupe but are getting 1.9x compression ratio :-)
>
>> Using ZFS dedup is logically the wrong place to do this; you want a decent
>> backup system that doesn't generate significant amounts of duplicate data in
>> the first place.
>
> The latest release of NBU (7.0) supports both client side and
> server side dedupe (at additional cost ;-). We are using it in test for
> backing up remote servers
> across slow WAN links with very good results.
>
> --
> {--------1---------2---------3---------4---------5---------6---------7---------}
> Paul Kraus
> -> Senior Systems Architect, Garnet River ( http://www.garnetriver.com/ )
> -> Sound Coordinator, Schenectady Light Opera Company (
> http://www.sloctheater.org/ )
> -> Technical Advisor, RPI Players
>
>
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