I played with this at one time, with 6 36GB SSA disks. I found the smallest stripe size (4K) worked the best. I cut 50% of my DB backup time going from 128K to 4k stripe size. I saw little or no observable difference for my client backups, but that machine has other resource issues that may have masked the effect.
Andy Carlson |\ _,,,---,,_ Senior Technical Specialist ZZZzz /,`.-'`' -. ;-;;,_ BJC Health Care |,4- ) )-,_. ,\ ( `'-' St. Louis, Missouri '---''(_/--' `-'\_) Cat Pics: http://andyc.dyndns.org/animal.html On Wed, 2 Oct 2002, Kilchenmann Timo wrote: > Dear all, > > >From a previous threat I learned, that TSM fills a DB volume an than goes > to the next one. Same is true for the LOG volumes - no "load balancing" > like on STG Volumes via client sessions. > > In this case (DB & LOG) I plan to use AIX LVM to stripe the logical volumes > over the available physical disks. The question here is what stripe size > should I use? Any suggestions? > > Many thanks in advance!!! > > Timo >
