For years I've been asked by my customers if they could have many versions for files in their primary pools while limiting the versions in their copy pools to 1 for disaster recovery. In reading up on the new TSM V5.4 feature "Active-Only Storage Pools" it looks like this is now a reality. I could create an Active-Only storage pool (limited to backup data, no archive data). This new pool would now become my new destination pool for my backup storage pool command. I could even go one step further and choose to collocate this data by node. The end result would be a set of tapes at DR that would not have to skip over any files when performing a restore. I realize great consideration has to be done before implementating something like this because if the active file is corrupt you wouldn't be able to recover a previous version. Still, in the case of DR I know I have many customers that would accept the risk in order to reduce the amount of data they have offsite and to speed up their restores. I know that you can set a tape in an active only storage pool to offsite so I'm assuming that it will be included with move drm. I still haven't completed testing myself yet though. I'm wondering if anyone out there is considering this as well?
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