Re: Adaptec raid congtrollers for SATA disks under software raid

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On Fri, 31 Oct 2008, Mike Myers wrote:

Well, actually if the chips that manufacturer A uses are faster in software raid than manufacturer L...  :-)

thx
mike


Mike,

What sustained rates for sequential read/writes have you been able to achieve with multiple (HW) based PCI-X RAID cards?

Isn't there a drop in performance when exporting a drive via JBOD vs. directly attached to a SATA controller? I remember raptors on a SiI 3112 (or the raid chip on an ABIT IC7-G, its been awhile)-- in RAID mode on a motherboard, it was (this was a while ago) 40-50MiB/s whereas the same raptor
connected to a regular sata controller was closer to 70-80MiB/s (74GiB raptor).

Justin.


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