Hello, we didn't try that one ... Is there any reason for the migration from disk to tape to be faster than backup from disk to tape?
thx Sandra --- Zlatko Krastev <[EMAIL PROTECTED]> wrote: > How long does the migration to tape take after > backup to disk? > > Zlatko Krastev > IT Consultant > > > > > Please respond to "ADSM: Dist Stor Manager" > <[EMAIL PROTECTED]> > Sent by: "ADSM: Dist Stor Manager" > <[EMAIL PROTECTED]> > To: [EMAIL PROTECTED] > cc: > > Subject: Performance again!!! > > Hello everybody, > > It seems like TSM performance problems will neer > end!!! > > Here is the new problem: > > The customer is running TSM 4.2.1.0 on a Windows > 2000 > server machine . An IBM rack case 82XX which > contains > a Quantum DLT8000 tape drive is connected to the > server. > The driver version for the Quantum DLT drive is 1.5 > and > is installed on the W2K machine. We tried a backup > of > 350MB on the local server with the Windows 2000 > Backup > > utility and it took us approximately 75 seconds . > > Next , we tried the same Backup from TSM using its > Device Driver and it took us about 9 minutes . We > tried switching TSM to use the Native device driver > but still we got the same performance result . > > So we upgraded to 4.2.2 ; In the Device Manager for > TSM,we can see that TSMSCSI.exe is upgraded to > 4.2.2.25 and the ADSMSCSI.sys is 4.2.2.3 . The > server > has a version of 4.2.2.25 . Still , we obtained > poor > backup performance . > > We suspected that maybe it was a database bottleneck > ( eventhough it is still empty) ; so we tried the > same > Backup using TSM but the destination was on the > HardDisk. > The performance was good and the backup finished > within 75seconds . So, we can eliminate the > database > problem. > Also, we noticed with version 4.2.2.0 that it is > crashing frequently . It was exiting abnormally . > > On the site of tivoli, the latest version of TSM > server is 4.2.2 . We do not have the 5.1 release . > > does anyone have a suggestion? > > thx a lot > Sandra > > __________________________________________________ > Do You Yahoo!? > LAUNCH - Your Yahoo! Music Experience > http://launch.yahoo.com __________________________________________________ Do You Yahoo!? LAUNCH - Your Yahoo! Music Experience http://launch.yahoo.com
