On Sat, Jan 28, 2006 at 01:10:10PM -0500, Anthony DeRobertis wrote: > The OP said any driver, and I pointed out that isn't true. Trying to > have users tell the difference between software raid drivers and > hardware raid drivers is, I think, harder than just having them tell > software vs. hardware raid controllers apart. After all, the latter can > be done with a high confidence by looking at the price tag. > > Linux software raid has a lot of advantages like being able to configure > on a per-partition, not per-disk, basis. Many true hardware raids can't > even do that.
I think most of them can do volumes on a raid, which is essentially partitions. They show up as seperate drives then. Of course you can also partition the raid device since it is just a disk to the OS. > However, I haven't actually seen benchmarks showing its faster. I'm not > sure how you'd benchmark it, either... You'd have a lot of > windows-vs-linux differences to filter out somehow. I was told by a 3ware dealer that many of their users run linux software raid on their 12 port cards, because they find with a modern cpu linux software raid beats the 3ware hardware raid chip. So they use it as a single card 12 driver sata controller instead. I certainly know in the past I got a drop in performance when going from software raid1 to an ibm serveraid 4m doing raid1. I was surprised and rather disappointed in that. The hardware raid was easier to manage though. Len Sorensen -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
