Re: Informix on RAID-5

settler@hobbes.dbintellect.com (Jeff Craig) wrote: >Does anyone have any sage advice regarding implementing an Informix >database on a RAID-5 system? I am wondering how best to use Informix ** Yes. Don't do it. You get totally blown away by the inefficiencies of RAID-5. Do anything you have to do to get approval for double the number of disks to implement RAID-0+1 instead. >fragmentation in light of the fact that RAID-5 has already striped the >data across disks. Since a RAID-5 "logical" drive is composed of several >physical drives over which data is spread by the RAID software, should >I try to fragment across logical drives? Should I skip Informix >fragmentation for RAID-based data? I am not planning on putting the >write-intensive stuff (logical and physical logs, temporary chunks, etc.) >on RAID-5. >All comments are appreciated. >------------------------------------------------------------------- >Jeff Craig | dbINTELLECT Technologies, Inc. >Senior Consultant | Golden, CO > | (303) 275-6954 ext. 8008 > | email: settler@dbintellect.com > | fax: (303) 275-2134 >-------------------------------------------------------------------