ok which mobo did you get? You could have an issue with the mobo's chipset support. Which version of Centos?
Craig White wrote:
On Fri, 2007-01-12 at 23:16 -0600, Les Mikesell wrote:
Craig White wrote:
I have software RAID level 1 and the mirrored drives are the master & slave on the primary controller and I'm thinking that is my mistake.
Is there a simple method for changing the configuration of md before I switch the slave drive to be the slave on the secondary controller?
I think they will pair up automatically if you shut down cleanly and move the connector. If not, just 'mdadm --add' it back after it comes up with a missing member. If you have to add it back, the drives will have to resync so there is a small risk of failure during the process.
great thanks - am I right in thinking that having both mirrored drives on the same controller master/slave is likely a cause of slowness?
It will make some difference on writes, but reads should only be done on one of the drives anyway. I doubt if it makes a huge difference unless you have an application writing all the time.
here's my problem - system was ok and mother board died. Purchased a new motherboard and this is what I get...
# hdparm -t /dev/md1
/dev/md1: Timing buffered disk reads: 4 MB in 3.68 seconds = 1.09 MB/sec
which is dreadfully slow
Thanks
Craig
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