100Mb/s=10MB/s=36000MB/hr=36GB/hr theoretical maximum. 

If you get 20-25GB/hr you are lucky. But this is only network speed for 100Mb/s 
ethernet full duplex. It is very important that you have full duplex.
So you can get 20-25GB/hr if you don't have any other bottleneck with hardware.

And don't believe estimate from GUI. Try to test it. Select 5-10GB and restore 
it to temp folder.

Joe Crnjanski
Infinity Network Solutions Inc.
Phone: 416-235-0931 x26
Fax:     416-235-0265
Web:  www.infinitynetwork.com



-----Original Message-----
From: Mike [mailto:mikee AT MIKEE.ATH DOT CX]
Sent: Friday, September 24, 2004 12:45 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: how to speed up restores?


Something came up the other day talking about one of our large intel
fileservers (windows 2003) on how long it might take to restore its
shared drive should the entire drive be lost. Today I used the client
TSM gui and requested an estimate of file sizes and times to restore
this intel drive. The gui came back with the estimate of 125 hours
to restore 260GB of data contained in 974008 objects.

How good are these estimates and how can I get this time down from
0.0346GB/minute to 1.0GB/minute (260 minutes to restore 260GB of
data)? The network is 100Mb/sec, so that's 450MB/hour. That's seems
to be 591.8MB/hour. The reports do not show that compression is
turned on for any (not this) clients.

How does this work out?

Mike