A lot of the decrease in speed you're running into probably has to do with
TSM database and OS filesystem overhead. As you're not doing incremental
backups, tar'ing all your filesystems and backing up just the tar files
might help with your times.
Alex
-----Original Message-----
From: Praveen Kumar [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, June 06, 2001 11:02 PM
To: [EMAIL PROTECTED]
Subject: Backup & Restore time
Hi all,
I configured TSM 4.1 and TDP for SAP R/3 2.7 on a SUN Solaris system.
Our setup is as follows.
Solaris 7 OS, SAP R/3 4.0B and Oracle 8.0.6 database for SAP.
IBM Magstar 3570 tapeloader with single drive.
I successfully configured TSM 4.1 and TDP for SAP R/3 2.7. We are taking SAP
online/offline backup using SAP brbackup utility. While taking
online/offline backup, tapeloader backs up at the rate of 45GB per hour. (I
enabled RL_COMPRESSION parameter. Means it is set to YES. I have not enabled
the TSM client compression). It is also restoring at the same speed. I can
restore 45GB per hour. For restoration we are using SAP brrestore utility.
My problem is if i take the file system level backup using TSM (dsmc
utility), my backup speed reduces to 30GB per hour and restoration speed
reduces to 22GB per hour. I am taking full filesystem backup not incremental
backups. With the same settings SAP online/offline backup and restore speed
is 45GB per hr. Any tips to improve the filesystem level backup/restore
speed.
All suggestions are most welcome.
Regards
Praveen Kumar
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