On Fri, 30 Mar 2007, Neil Brown wrote:
On Thursday March 29, jpiszcz@xxxxxxxxxxxxxxx wrote:
Did you look at "cat /proc/mdstat" ?? What sort of speed was the check
running at?
Around 44MB/s.
I do use the following optimization, perhaps a bad idea if I want other
processes to 'stay alive'?
echo "Setting minimum resync speed to 200MB/s..."
echo "This improves the resync speed from 2.1MB/s to 44MB/s"
echo 200000 > /sys/block/md0/md/sync_speed_min
echo 200000 > /sys/block/md1/md/sync_speed_min
echo 200000 > /sys/block/md2/md/sync_speed_min
echo 200000 > /sys/block/md3/md/sync_speed_min
echo 200000 > /sys/block/md4/md/sync_speed_min
Yes, well....
You told it to use up to 200MB/s and the drives are only delivering
44MB/s, so they will be taking nearly all of the available bandwidth.
You shouldn't be too surprised if other things suffer.
NeilBrown
Understood, will reduce this, thanks.
Justin.
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