On 03/06/10 11:30, Craig James wrote:
I'm testing/tuning a new midsize server and ran into an inexplicable problem. With an RAID10 drive, when I move the WAL to a separate RAID1 drive, TPS drops from over 1200 to less than 90! I've checked everything and can't find a reason.



Are the 2 new RAID1 disks the same make and model as the 12 RAID10 ones?

Also, are barriers *on* on the RAID1 mount and off on the RAID10 one?

Cheers

Mark


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