On Fri, 26 Dec 2008, Michal Soltys wrote:

quoted

I am not worried about the filesystem as the defaults usually get it right 
but with parted, this is the first time I had to use it for home use and 
with RAID-6 I am noticing slower performance with 15 disks (1 is a spare) 
in RAID-6 (albeit slower 7200 ones, RE3s) than I was getting with 10 
raptor150s in RAID-6 (but I had used fdisk there).

Justin.

For best effect - partition should start at 1920th sector (stripe width
boundary), and su/sw should be appropriately set - su=64k,sw=13 in your
case. Parted shows the values normally - from the beginning of the volume, 0 
based.


ps.

I dropped some of CCs.

Thanks.