Veritas-bu

[Veritas-bu] NFS Backups

2007-03-27 12:46:06
Subject: [Veritas-bu] NFS Backups
From: jpiszcz at lucidpixels.com (Justin Piszcz)
Date: Tue, 27 Mar 2007 12:46:06 -0400 (EDT)

On Tue, 27 Mar 2007, Martin, Jonathan (Contractor) wrote:

>
> All,
>
> A group I support here is looking very heavily at a Sun Storagetek
> appliance like storage device that I've got to backup somehow.  After
> seeing the NDMP price tag (we don't do any other NDMP here) the question
> of NFS file backups has come up.  So I'm going to try to benchmark NDMP
> backups with the NBU NDMP extension (temporary licenses) versus the same
> backups on a client server over NFS.
>
> OBVIOUSLY NDMP to Media Server is the way to go here (not an argument
> from anyone on that.)  HOWEVER - apparently from a budget perspective
> it's a difficult pill to swallow.
>
> (Ok, my disclaimer is complete - so flame on!)
>
> My current plan is to benchmark to NDMP, then load up a test Linux
> server and optimize that NFS backup.  I'm assuming the NDMP will be (for
> example) some 50+MB/sec and the wire-2-wire is going to be significantly
> slower (the percentage slower being directly related to whether or not
> this is even feasible.)
>
> Has anyone done any testing like this before?  I'd appreciate any
> results anyone can share.
>
> Thanks,
>
> -J
>
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>

With NDMP I have seen in the neighborhood of 25-40MB/s to an LTO-2 tape 
drive.  However, I never tried backing up over NFS, there are a LOT of 
issues there, locking on an NFS mount, extremely slow speeds, etc..

Justin.


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