Thomas, First off, with all the great enhancehancements and current high stability levels I would recommend going straight to version 6.4 As you have already stated there are certain data types hat are good candidates for data deduplication and your database backup data definitely is and image files definitely aren't.
>From my experience oracle export files are traditionally good dedupe >candidates also. >From what you describe, the SQL backup data minus the compression would also >be a good candidate. The one thing you do not mention is how many versions of this backup data you are keeping? >From my experience, unless you are keeping a minimum of 4 backup versions, the >dedupe ratios will suffer. Too many time I see folks keeping only 2 backup >versions nd they can't understand why they get very poor dedup rates Also be aware that with TSM deduplication you will have to ensure that you write the backup data to a target disk pool that will have good enough performance to not negatively impact backup speed. +---------------------------------------------------------------------- |This was sent by bkupm...@yahoo.com via Backup Central. |Forward SPAM to ab...@backupcentral.com. +----------------------------------------------------------------------
