Which configuration is better on TSM 6.2: 1. TSM Active Log on mirrored RAID (RAID1/RAID10) with no TSM Active Log Mirror.
2. TSM Active Log, and TSM Active Log Mirror, each on separate JBOD disks. (JBOD is faster than RAID, which compensates for the performance hit of the second write by TSM. This moves the second write from the RAID controller to TSM itself.) The second arrangement is how we've always done it on TSM 5 and before, because it offered better recoverability. This is how I set up my first TSM 6.2 server, and it works OK. As I set up my second one, I'm wondering if it's the best way. Roger Deschner University of Illinois at Chicago [email protected] == "History does not repeat itself, but it does rhyme." -- Mark Twain ==
