Re: Online 5.0, SCO Open Server 5 and DPT SmartRaid IV

In article <01bb9b94$2540f620$0200a8c0@default>, "Ronald E. Major" <rmajor@moose.erie.net> writes >I was wondering if anyone had any experience using Online 5.0 on an SCO >system >with a RAID subsystem. More specifically, an SCO Open Server 5 OS >with a DPT SmartRaid IV. I don't have any experience with RAID systems >(yet) >and I am concerned about performance and reliability. Which would be better >for >performance - RAID 1 or 5? My reliability concern centers on the caching >method >of the controller and database consistency. > >Our database systems range from 4Gig to 24Gig depending on the projects we >are running. To date we have been gambling with a non-RAID system with >large >drives and daily backups. No doubt that I have had to restore a database or >two >once or twice. I have been lucky the past few months (knock wood) but I >would >like to sleep at night. > >I have looked at a few RAID subsystems and found the DPT SmartRaid IV to >be the best for the price. Now I want to know as much about the issues >surrounding >RAID and Online 5.0 before I commit to any decision. Any thoughts or ideas >would be greatly appreciated. > >TIA >Ron Major >rmajor@moose.erie.net I've heard that you should try to avoid RAID 5 as it has slow write performance. There's little other information out there so most places use straight mirroring. -- David Williams