Slow IO after 5.1 upgrade

From: Chris Bryant (cbryant@dollar.com)
Date: Tue Nov 26 2002 - 15:18:33 EST

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Admins,

        We have a alpha 8400 that was upgraded from 4.0F -> 4.0G -> 5.1.
Running AdvFS file system version 4 with backwards compatability to version
3. All domains on this system are running version 3. The only application
running is Oracle 8.1.7.4. We are experiencing I/O performance problems,
more specificly slowdowns on these domains. Direct I/O is turned on. Has
anyone else seen problems similar? What is the cause? What is the
solution? I will summarize.

TIA,

Chris Bryant
Unix Administrator
Dollar Rent A Car
(918) 669-3213

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