Veritas-bu

[Veritas-bu] NFS Backups

2007-03-27 13:40:20
Subject: [Veritas-bu] NFS Backups
From: HallC at SEC.GOV (Hall, Christian N.)
Date: Tue, 27 Mar 2007 13:40:20 -0400
Courtney, 

Just NFS shares, no CIFS from your NAS? How much data do you share to
your hosts (NFS shares to clients)? What type of library are you using,
and tape drives? We are looking at a similar configuration for
consolidating EMC luns that are connected to Windows media servers that
cannot efficiently backup data that is non-compressible, small file data
1MB size with a count in the millions, with a throughput of 5MB-7MB/sec.


Thanks,
Chris Hall


-----Original Message-----
From: veritas-bu-bounces at mailman.eng.auburn.edu
[mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of Jones,
Courtenay
Sent: Tuesday, March 27, 2007 12:56 PM
To: Martin, Jonathan (Contractor); veritas-bu at mailman.eng.auburn.edu
Subject: Re: [Veritas-bu] NFS Backups

We have done something similar ...

NDMP Enviroment: EMC NSX - holding  gazillion of files
NFS - HPUX 11.11 - holding  gazillion of files (gazillion is a technical
term there  :) ) 

There is no question that NDMP is the way to go. With a bit of tuning
and some trial and error, we are pushing 80+ MB/sec from our NAS . The
restore average around 40-50 MB/sec (w/ DAR enabled).

HPUX client was maybe, 20 MB/sec, and the restores were about the
same...


Regards,

 
-cj
Courtenay Jones
UNIX Systems Engineer, Raleigh Technology Centre



-----Original Message-----
From: veritas-bu-bounces at mailman.eng.auburn.edu
[mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of Martin,
Jonathan (Contractor)
Sent: Tuesday, March 27, 2007 12:25 PM
To: veritas-bu at mailman.eng.auburn.edu
Subject: [Veritas-bu] NFS Backups


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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