Robert,
You could try to write the backup to a non collocated pool.. so the data
gets spread on multiple tape volumes.
Then expiriment with the resourceutilisation parameter in your option file.
The net effect you want to create is to do non qeury restores with as mutch
tapemounts as possible... because the data is spread over multiple volumes
you get more tape mounts and more restore streams...You also should raise
the maxmountpoints paramaters on your client to allocate enough mointpoint
for your client.
If you have enough diskspace use devclass volumes file for your onsite
pool... this will give you the fastest restore in the biss..( on the client
option resourceutil eg 10) ( on your client maxnummp 10 ) using only tape
for copypools.
Suc 6.
Koen
From: Robert Ouzen <rouzen AT UNIV.HAIFA.AC DOT IL>
Reply-To: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Help on SAP filesystems
Date: Fri, 6 Feb 2004 10:34:39 +0200
Hi to all
In my organization I have a SAP database to backup I do it with Sap Backint
TDP without any problem , my concern is about my File Systems (13 f.s) , in
particular the F.S: /sapmnt with thousands of files changing every time.
I backup this station in a particular Stg Pool collocate with selective
command e.g.: s // /sapmnt/ /usr /home/ .
My backup copy group is in copy mode: absolute and copy serialization:
dynamic
My total F.S is 16 G ( 304,000 files) made today a restore test ( all the
data is on one cartridge) but the restore is so slow in particular /sapmnt
Did anyone can suggest how to improve this process ... What
recommendations
to apply , what to exclude ..
TSM Server on AIX 5.1.8
Sap Backint TDP TDP R3 Aix
Client of Tsm for AIX 3.7.2
Client OS Level 4.3
Regards
Robert Ouzen
E-mail: rouzen AT univ.haifa.ac DOT il
_________________________________________________________________
Protect your PC - get McAfee.com VirusScan Online
http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963
| 