All,
This is a question similar to one that was recently posted but never quite answered: http://www.mail-archive.com/adsm-l@vm.marist.edu/msg79786.html We have a user who backs up Oracle databases on AIX 5.3 using RMAN and the TDP 5.4 to a TSM 5.3 server. He uses 12 RMAN channels to back up a few hundred GB database to a TSM disk pool in ~1 hour. A restore of the same data takes 7 hours even though the data stays on disk and RMAN is told to use 8 restore channels. A "q session" on the TSM server during the restore shows only 1 restore session for the node. Our first thought was to increase the "ResourceUtilization" option on the client and "MaxMountPoint" option for the node on the TSM server. However, the Linux-UNIX TSM client manual states that "If all of the files are on disk, only one session is used. There is no multi-session for a pure disk storage pool restore." Anyone have any hints or tips on how to speed up a pure disk Oracle RMAN/TDP restore? Is the solution that we should flush the db backups to tape in order to be able to make use of "ResourceUtilization" and "MaxMountPoints" settings? John Bremer LANS LLC, Tivoli Backup