Re: Informix and RAID?

Test IT wrote: > > The folks from Informix told me that running Informix on a box in a > RAID configuration is not the best idea. They say that performance > drops. Is anyone running Informix 7.11 or > on a RAID box? We're > talking less than 100 tps and less than 20GB of data. If you > converted from not RAID to RAID, did you see a big performance drop? > > If people aren't using RAID how do they deal with fault tolerance? > Morroring? I'm about ready to go production and I'm at the point > where I need to buy a production server. I don't want to screw up > Informix, but I sure like the warm and fuzzy feeling of RAID. > > Thanks for any comments/suggestions > > Jason Fry > Washington State Legislative Service Center > fry_ja@leg.wa.gov I've used OnLine v5 with RAID on NCRs. No problems. Performance OK. What you have to remember with RAID is that it's unlikely that any disk placement you do will have any effect, since the logical chunks do not correlate to discrete *physical* units. If not RAID then yes, mirroring. Received wisdom suggests that both hardware and/or UNIX mirroring is preferable to Informix mirroring 'though. Neil