3ware 9500 RAID - stripe size??

Strolls

n00b
Joined
Jan 20, 2009
Messages
44
Hi there,

I'm just in the process of setting up a new system with a 3ware 9500 card in it, and noticed a couple of posts mentioning stripe size. Does stripe size make much difference? (for this card?)

I have 2 x 160gb drives for the o/s, which will be RAID1.
I have 3 x 500gb drives for porn, RAID5. Of course this won't be enough, so I'll add more drives later.

Speed of this system isn't very important, but I might as well take advantage of any tweaks I can get. I didn't think about stripe size at all as I was messing around yesterday - after all, it'll be invisible to the o/s, right? - but I read in another post how Adaptec controllers like a stripe size above a certain size, and I don't want to do anything stupid which would cripple the system.

O/S will be Linux, I was planning mostly using ext4.

Thanks in advance for all replies.

Stroller.
 
I found that in my real world file copy tests 256kb stripe worked best for Raid5
I have a 3650SE...
 
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