On Sat, Oct 11, 2014 at 2:19 PM, Phil Birnie <me@xxxxxxxxxxxxxx> wrote:
> there's nothing else on the system that is running at that particular time
> that would slow down the machine
Well there goes my theory. It does sound suspiciously like there's
something else running that would slow things down. I believe mdadm
weekly checks kickoff on Sunday morning by default, but there could be
something else like that. You might also try using sar to instrument
the system and see if you can find the bottleneck.