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Re: [Veritas-bu] NDMP backups from Netapp using Netbackup
2010-07-27 16:29:58
We get poor performance (4MB/sec) performance running NFS mounts
on our FAS 2040, but we’ve found we can run many simultaneous streams and
get that into the 20+MB/sec range. We’ve got one Sun device we run 16
simultaneous NFS streams on that pushes 30MB/sec. Have you tried hitting
multiple mounts with individual streams at the same time to get better CIFS
performance?
-Jonathan
From:
veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Shawn
Plummer
Sent: Tuesday, July 27, 2010 11:37 AM
To: VERITAS-BU AT MAILMAN.ENG.AUBURN DOT EDU
Subject: Re: [Veritas-bu] NDMP backups from Netapp using Netbackup
We used to get HORRIBLE (8MB/s ish) performance doing CIFS
backups of our NetApp filer, and I was pretty sure Symantec recommended against
doing our backups that way (this was 3 years ago or so). We do backup
exclusively to tape though so maybe that makes the difference.
Also I didn’t think NTFS permissions were restored
correctly when using CIFs shares as your backup source.
~~~~~~~~~~~~~
Shawn Plummer
Systems Manager
CIT SUNY Geneseo
"The mind can make
substance, and people planets of its own with beings brighter than have been,
and give a breath to forms which can outlive all flesh." -Lord Byron
On Jul 27, 2010, at 11:29 AM, Ed Wilts wrote:
On Tue, Jul 27, 2010 at 9:56 AM, Len Boyle <Len.Boyle AT sas DOT com> wrote:
With the new backup support for what was
called pure disk the backup data is going to disk and only the changed blocks.
But if I understand things the netapp would have to have code installed on it
that would understand the pure disk api.
What Symantec is actually
recommending now is to use a traditional Unix or Windows client and NFS-mount
or CIFS-mount the data. Then do your normal backups to a PureDisk storage
unit and do continuous incrementals and synthetic fulls. With the new PD
code, a synthetic full only does pointer changes so they got like a bat out
of...
As an extra bonus, because you're using a non-NDMP client, you can restore the
file to anywhere, not just the same NDMP type of host that you started
from.
As a double-added bonus, a Unix or Windows license (list $2,595 to $6,095 for
x86/x64 clients) is a LOT cheaper than an NDMP license, especially if you
a have big filer (list $3,500 to $15,500).
The de-dupe option is VERY pricey though at $5k per front-end TB (MSRP).
In our environment, we're about 180TB of used space at the moment. The
list price of backup it all up with de-dupe would top a million bucks with the
media servers and the de-dupe licenses. And that doesn't include the disk
to put it to.
.../Ed
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