Capturing data on Oracle "WARNING: aiowait timed out" events

Oracle "WARNING: aiowait timed out" error messages in the alert log are always something that needs further investigation as it can indicate some kind of I/O or system resource issue that stopping valuable I/O’s down to storage. Now there could be a whole bunch of…

Diagnosing a VxFS filesystem performance issue

I recently got involved in an interesting performance problem in which the customer was experiencing differences in copying a 500mb file to 2 different VxFS filesystems on the same box by up to a factor of 4 in some cases ie "timex cp <500mb file> /vxfs_filesystem&…

Upgraded to Wordpress 2.7

Yes, another upgrade of WordPress on stormsail.com but this time using the automatic upgrade plugin which grabs the latest version from the main wordpress website and does all the necessary backups, pluging disabling, code upgrading etc etc.…

Hobbes to Nevada build 104

I had some performance issues with build 103 after it had been up for a little while but didn’t spend time diagnosing it as I upgraded to build 104. I suspect as the pool was quite full I might have run into CR 6596237 – “Stop looking and start ganging”…

Henry in the sink

For some strange reason, Henry seems to like sitting in either the bath or sink. It doesn’t really surprise me as he’s a little bonkers at the best of times! I wonder if I can train him to have a bath….…