Backupset slow restore

Don,

Thanks for the feedback.

The real problem was that the image I used to build my test client had
forced the NIC to 10 Mbs half duplex.  I downloaded the driver from Dell,
installed it, and set the NIC to 100 Mbs Auto, and the backupset restore
performance increased ==> 100 FOLD <==.

I'm so embarrassed...

Tab








DFrance <DFrance-TSM AT ATT DOT NET>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
05/22/2003 08:54 PM
Please respond to "ADSM: Dist Stor Manager"


        To:     ADSM-L AT VM.MARIST DOT EDU
        cc:
        Subject:        Re: Backupset slow restore


The client code was enhanced in v5.x to address restore performance
issues; check the TSM Technical Guide for info, and do upgrade your
client...


Don France
Technical Architect -- Tivoli Certified Consultant
Tivoli Storage Manager, WinNT/2K, AIX/Unix, OS/390
San Jose, Ca
(408) 257-3037
mailto:don_france AT ayett DOT net (change aye to a for replies)

Professional Association of Contract Employees
(P.A.C.E. -- www.pacepros.com)



-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
Tab Trepagnier
Sent: Wednesday, May 21, 2003 11:34 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Backupset slow restore


I'm experimenting with backupsets.  My first restore from one is going
very slowly.  Not sure why.  Any help would be appreciated, since I would
like to implement this feature on our production TSM system.

Test TSM System:

Server: TSM 5.1.6.5 on AIX 4.3.3 ML 8; 1-CPU F50, 1.25 GB RAM

Client: TSM 4.1.3.0 on Windows NT 4.0 SP6a; Pentium-II @ 350 MHz, 192 MB
Client will be upgraded to ITSM 5.1.x.x as part of the testing.

Backup performance from client to server on the order of 8 MB/s.

Backupset was generated on the server onto two FILE volumes, MaxSized at
250 MB.  Using command line client to restore part of the backupset
("C:\program files") to new location on local C: drive.  Restore
throughput measured via AIX topas is about 100 KB/s. Running time of
restore seems to confirm that performance.

Is this normal?  Is there something about this test that is queering the
performance?

Thanks.

Tab Trepagnier
TSM Administrator
Laitram LLC
Backupset slow restore - resolved
