> I think ext3 is a bit slow on so big LUNS, try xfs or similar?

there is no official support for xfs in RHEL5, so that is not an option. Besides, I'm talking about a drop of >150mb/s to ~10mb/s read performance when cracking the 2.2T size. This is clearly not in the ext3 (or FS for that matter) magnitude of performance issues. Also, numbers stay the same when dd'ing on the raw device (LUN).

-Jens



Eero Volotinen <eero.volotinen@iki.fi>
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07/14/2010 11:35 AM
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