RE: Using "hot spare" in a RAID-0 setup of an Informix DB ...

What does JBOD stand for? -----Original Message----- From: Thomas Parsli [mailto:thomas.parsli@startsiden.no] Sent: Tuesday, February 15, 2000 11:32 PM To: informix-list@iiug.org Subject: Re: Using "hot spare" in a RAID-0 setup of an Informix DB ... manaloe@my-deja.com writes: > Hi to all Informix experts out there ... > > We have a RAID-0 setup for our Informix-DB (and right now, addding a > RAID-1 mirroring is kind a expensive for my client) so we are thinking > of adding just a couple of disks for "hot spare". RAID-0 only means that you value size (cost) and speed (cost) over uptime (cost). When you decided to do RAID-0 you said "we really don't care if our disks blow in our faces". JBOD:We care, but can't afford proper RAID RAID-0: We don't care, and can't afford proper RAID RAID-1: We care, but can't afford proper RAID RAID-5: We care some, but not enough to buy proper RAID RAID-10: We _do_ care and we _can_ afford proper RAID > Just so we have > some protection in case of disk failure. Does "hot spare" disks works > with Informix - meaning, will Informix be able to recover and operate > continously if some disk failure happens to one of our RAID-0 component > and SEVM automatically using the "hot spare" disk to take over from the > failed disk component? RAID-0 is "Kamikaze-RAID". Great for video-editing and such, where lost disks just mean some hours lost. Put a database on RAID-0 and you're saying: "This database doesn't really mean much to us, if we loose it we just rebuild it and those hours lost isn't important". Thomas