I sugest you to read Performance tunning guide. There are some suggestions about number of DB and LOG files. I think that most important is to place DB, LOG and DISKPOOL files ot different HDDs (if it's possible). This will increase preformance. I think that TSM is using round robin to improve prerformance (if you have more than 1 file of some kind - on one disk - this will decrease performance).
Richard Rhodes <[EMAIL PROTECTED]> Sent by: "ADSM: Dist Stor Manager" <ADSM-L@VM.MARIST.EDU> 17.01.2007 18:53 Please respond to "ADSM: Dist Stor Manager" <ADSM-L@VM.MARIST.EDU> To ADSM-L@VM.MARIST.EDU cc Subject Recovery Log volumes . . . how many? I was just reading a document from IBM's web site about TSM administration tips. One of the tips is to have 4-6 recovery log volumes for a large tsm server. What is the reasoning for this? I guess I've always pictured log processing as mostly a sequential write process, but then that might be Oracle knowledge getting in the way. Will having 4-6 log volumes help speed up log roll back on TSM startup after a crash with a fairly full log? One time we almost ran out of log space due to something pinning the log, but we couldn't figure out what was pinning it. The log had grown to 10gb by the time we finally decided to cycle TSM. On the way back up it took over an hour to roll back the log entries. Thanks! Rick ----------------------------------------- The information contained in this message is intended only for the personal and confidential use of the recipient(s) named above. If the reader of this message is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this document in error and that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this communication in error, please notify us immediately, and delete the original message.
