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| About this blog: Computers hate me. They really do. Every time I try to do something unusual like add new hardware, something is guaranteed to go wrong. I decided to start writing about my constant problems so that someone else might benefit from my experiences - or at least laugh at them! |
I noticed today that the VelociRaptor drive in a MySQL server was audibly thrashing even though I had just terminated MySQL, the HD activity light was off, and 'iostat' showed zero HD reads and writes. It does not appear the OS was the cause of the thrashing.
Rebooting "fixed" the problem.
I have seen this happen at least twice before with this drive. Why does the VelociRaptor suddenly start thrashing by itself? It's never happened to any other drives (WD or otherwise). No SMART errors have been reported and the values all look normal.
UPDATE: Still happening, with all of this phantom thrashing I bet the Velociraptor is actually SLOWER than the 320GB bog standard WD drive which mirrors it... I'm almost at the point where I'm just going to remove it and replace it with a standard drive. Unfortunately I've already paid a significant price premium for a drive which does not perform as expected.
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Related posts:
VelociRaptor mirror on a budget
Velociraptor HD failed...
A warning about Western Digital VelociRaptor connector locations
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