On Wed, Aug 25, 2010 at 3:27 AM, Sigbjorn Lie <sigbj...@nixtra.com> wrote:
> Wow, not bad!
>
> What is your CPU penalty for enabling compression?
Not noticeable on the server side. The NBU servers are M4000 with 4
dual core CPUs, so we have (effectively) 16 CPUs and 16 GB of RAM. The
load does climb to the 7 to 8 region when the server is busiest (over
100 backup jobs running and it is the master server). This server is
overkill for NBU, but it was sized to be a V490 but by the time we
ordered it the V490 was no longer shipping so we changed over to the
M4000 with the same configuration.
We do not have good data on the CPU penalty for client side dedupe
yet. Based on recent NBU 7.0 issues, we will probably wait for 7.1 to
upgrade production.
>> We are using Netbackup with ZFS Disk Stage under Solaris 10U8,
>> no dedupe but are getting 1.9x compression ratio :-)
>> 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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