Quote:

Mark, does your statement hold true for RAID5, or do the hardware controllers make a difference there?


Some of the hardware solutions may be faster doing writes to RAID5 than the Linux s/w RAID, especially when an older host CPU is involved.

But on modern CPUs, they've got tons of cycles to burn (rarely is a CPU anywhere near fully loaded), and the hardware interrupt handlers generally get priority, and Linux s/w RAID almost always beats hardware. Unless your hardware RAID card has megabytes of cache or something extra like that to boost it.

I'm doing work for a very very major server vendor, and Linux s/w RAID is what they're going with, for good reason.

Cheers


Edited by mlord (10/01/2006 22:19)