ADSM-L

[ADSM-L] Restore Times

2007-05-23 08:33:33
Subject: [ADSM-L] Restore Times
From: James Choate <jchoate AT CHOOSES1 DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Wed, 23 May 2007 06:17:30 -0600
Does anyone have any general information that they have collected on restore 
time?

Were trying to do a restore, and but we're not sure what to expect, and we 
don't have anything to compare it to.

We are currently restoring 8.17GB to a Windows 2003 server.
The client is running on IBM x345 hardware.
The TSM server is a p660 with 2GB memory and 4-HBAs (2 for disk and 2 for tape) 
AIX 5305.  I have 14 LTO2 tape drives.
The TSM server is TSM 5.4.
When I backup an 8GB Windows client to the TSM server, it takes 18 minutes.
When I restore from the disk storage pool, it takes 43 minutes.
When I restore from the tape storage pool it takes 60 minutes.

The client and the TSM server are both running 1GB Ethernet.


We're trying to figure out if this is as good as it gets, or can we expect 
better performance.  We're not seeing the throughput that we were expecting 
from the LTO2 drives on the restore.  But then we're not sure if our time is 
being spent in TSM determining what to restore.

if anyone has any restore time information they can share, that would be great.

Also any comments on our restore test situation would be appreciated.

Thanks,
James

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