mdadm, partitioned array

[michael@estone.ca]

Hi,

I created raid 5 array via the following:

# mdadm -C /dev/md_d0 -l5 -n 6 /dev/sd[a-f]3 --auto=p

Upon reboot, I cfdisk'd the md_d0 into md_d0p1 and md_d0p2
Formatted each partition and mounted one to /mnt and the other to /mnt2.

Running some bonnie++ benchmarks gave extra slow write results on  
/dev/md_d0p1.
but the same tests on /dev/md_d0p2 are normal. Read results are approx  
the same on both partitions, but only writes are half as fast on p1  
then p2.

I'm not quite sure why I'm getting these results. Any ideas to
what could be wrong, or what to look for?

thanks in advance,

Cheers,
Mike