On Sun, 2003-09-14 at 10:48, lorne wrote: > ...> > One thing everyone need to remember is that the IDE raid solutions that are > available right now aren't really raid as most have come to expect raid. They > use cpu processor power. This puts an extra load on the processor. The scsi > raid systems have their own on board raid processing power. I currently use a > mirrored system and was disappointed with performance. I'm happy to stay with > it though, so if I lose a drive I haven't lost data. So if you are thinking > pure peformance, you should probably not use the cheap typical ide raid. > There are some more expensive ide raid controllers that do ues real hardware > raid though. I just don't recall any off hand. ...
and furthermore, I'm under the impression that many of the IDE boards/chips are using their own interleaving strategy that renders the volume unusable with another vendor's solution. Please correct me if I'm wrong about that. IMHO, as long as you're taking the CPU hit you might as well just use LVM and have soft RAID -- you know you'll still be able to get to the data if the disk controller barfs or if you have to move the drive to another computer. -- Jack Coates Monkeynoodle: A Scientific Venture...
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