Re: First-Hand Experience with RAIDS?

In <jlumbleyCwuKwB.C96@netcom.com>, jlumbley@netcom.com (Joe Lumbley) writes: > >Folks, > >I've seen various pros & cons of RAID implementations for OnLine 5.xx >databases, but I'm interested in hearing from users who are actually >using, or who have first-hand experience with RAID implementations. > >I read that RAID 5 will cost us a little performance in writes. Do you >have any numbers? What about the benefits gained from the inherent >striping with a RAID? > >My company is looking at moving into a RAID environment becuase our >customers are demanding more fault-tolerance. Let's get a decent >thread going on this topic.....I think most of us are going to have >to address the matter eventually. > >Joe >______________________________________________________________________ >Watch for my "INFORMIX DBA Survival Guide" from Prentice-Hall in 10/94 > I am using RAID5 (HP) for an SAP dataabase. Performance seems quite good (although I am Online 6.0 and have a lot of memory and get performance from buffers.). We chose RAID because it is the easiest way to increse fault-tolerance. We are choosing to keep a fifth disk around on-site to cover for a bunch of raid units (8/1 - 10/1). ________________________________________________ G. Wayne Kidd TEAMOS2 ________________________________________________