On Jun 12, 2007, at 8:33 PM, Francisco Reyes wrote:
Vivek Khera writes:
what raid card have you got?
2 3ware cards.
I believe both are 9550SX
i'm playing with an external enclosure which has an areca sata
raid in it and connects to the host via fibre channel.
What is the OS? FreeBSD?
FreeBSD, indeed. The vendor, Partners Data Systems, did a wonderful
job ensuring that everything integrated well to the point of talking
with various FreeBSD developers, LSI engineers, etc., and sent me a
fully tested system end-to-end with a Sun X4100 M2, LSI 4Gb Fibre
card, and their RAID array, with FreeBSD installed already.
I can't recommend them enough -- if you need a high-end RAID system
for FreeBSD (or other OS, I suppose) do check them out.
Right now I'm testing an 8-disk RAID6 configuration on the same
device; it seems slower than the 16-disk RAID6, but I haven't yet
tried 8-disk RAID10 with dedicated log yet.
Is all this within the same controller?
Yes, the system is in testing right now, so I'm playing with all
sort of different disk configurations and it seems that the 16-disk
RAID6 is the winner so far. The next best was the 14-disk RAID6 + 2
disk RAID1 for log.
I have separate disks built-in to the system for boot.
