Simon, do benchmarking with the same fileset for MPX=1,2,3,4,5,6,.. etc.

I found MPX=3 to offer the best speeds for both backup & restore (for big 
files).

Justin.

On Sat, 25 Nov 2006, WEAVER, Simon wrote:

> 
> Just for the record, last night setoff a policy which normally streams 5
> jobs to 2 drive.
> 
> This time, configured for 3 streams to 3 drives. Just got into work and
> found its MUCH SLOWER than the week before !!
> 
> So I will revert back !!
> 
> 
> 
> Regards
> 
> Simon Weaver
> 3rd Line Technical Support
> Windows Domain Administrator
> 
> EADS Astrium Limited, B23AA IM (DCS)
> Anchorage Road, Portsmouth, PO3 5PU
> 
> Email:  <mailto:Simon.Weaver at Astrium-eads.net> Simon.Weaver at 
> Astrium-eads.net
> 
> -----Original Message-----
> From: Paul Keating [mailto:pkeating at bank-banque-canada.ca]
> Sent: 23 November 2006 13:42
> To: veritas-bu at mailman.eng.auburn.edu
> Subject: Re: [Veritas-bu] LTO-3 and MPX
> 
> 
> 
> If you backup server can handle the incoming IP traffic, and you can get it
> to the drives......it will be great.
> 
> I found best aggregate performance for LTO2 and LTO3 with my GigE clients @
> MPX=2, and my 100Mb/s clients @ MPX=8.
> 
> Paul
> 
> --
> 
> -----Original Message-----
> From: veritas-bu-bounces at mailman.eng.auburn.edu
> [mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of Hampus Lind
> Sent: November 23, 2006 2:15 AM
> To: veritas-bu at mailman.eng.auburn.edu
> Subject: [Veritas-bu] LTO-3 and MPX
> 
> 
> 
> Hi all,
> 
> 
> 
> How good/bad are LTO-3 drives when it comes to multiplexing? Would we see
> great performance degradation if we set MPX to 4 on 1 LTO-3 drive and the
> run 4 simulations backups to that drive?
> 
> 
> 
> I understand it can depend a lot on our clients as well...
> 
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