Re: What stripe size to use for TSM DB, LOG
2002-10-02 14:54:16
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 '---''(_/--' `-'\_)
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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
>
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