Charlotte,
At 01:52 AM 5/24/2006, Charlotte Hammond wrote:
Hi All,
Some more details:
The filesystem is ext3 and it's on an EMC Clariion storage array (low-end SATA unit - don't know the exact model number), with fiber-channel connection.
The cache has been disabled due to problems with the UPS - I was assuming that this was part of the problem but couldn't account for all of it.
There are indeed several bad things happening:
* SATA disks * RAID-5 * No cache
But even together I didn't expect things to be *this* bad. Am I looking for a non-existent fourth problem? :-) My current focus is on the 512-byte writes seen on iostat - any ideas why I could be seeing this?
Regards
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