Re: raid 10 su, sw settings

Iustin Pop
2007-12-31T21:49:20Z

On Mon, Dec 31, 2007 at 03:55:01PM -0500, Brad Langhorst wrote:
> Any opinions on the partition layout? Did you go to special effort to
> layout your partitions on the stripe boundaries (actually i don't really
> understand this fully yet).

So instead of the usual 255 heads, 63 cylinders fake geometry that is
not a multiple of anything, I setup 16h/16c geometry that gives a nice
power-of-two multiplier so all partitions *should* be aligned at a nice
multiple of any size you choose; fdisk -l on the drive reports units of
128k.

I have to say that the performance of the filesystem (XFS) on that
raid10 is satisfactory and about what I expected. Certainly ~50MiB/s
write while doing ~50MiB/s reads (for a combined, not purely sequential
throughput of ~100MiB/s) is enough for my needs.

regards,
iustin