From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED]]On Behalf Of Dirk Kastens > Seemed to be a faulty raid controller. We always used raid5 for > TSM volumes and never got any errors or bottlenecks. Of course, > we use different raids for stgpools and the database.
A question: why are RAIDing your TSM diskpool? There's no need for redundancy in the diskpool, since the diskpool is not the mission-critical component of your backup system. It's the *tape* pool you need redundancy for, and that's what a copy pool is for. You *might* RAID 0 your diskpool, so that you stripe across the pool disks for a larger number of read/write heads, but there's nothing but unnecessary overhead when you RAID 5 it. The diskpool dies? You fix the pool, and you back up the files again the next night. -- Mark Stapleton ([EMAIL PROTECTED]) Certified TSM consultant Certified AIX system engineer MCSE
