From: Abramson, Stuart (SAbramson@Wabtec.com)
Date: Mon Dec 22 2003 - 13:06:40 EST
All:
We had some performance problems recently and discovered that one of our
Oracle Databases, although carefully distributed across some 35 different
HyperVolumes, was actually jammed onto only 5 EMC physical disks.
(We filled out Symmetrix frame in "chuncks", 50 disks on initial delivery,
20 more, 20 more, etc..)
Now, I know that all reads and writes from cache. But is there any value in
actually distributing the Oracle Database file systems across separate
PHYSICAL DISKS.
Please don't tell me about Oracle SAME (Stripe and Mirror Everything).
We're NOT interested in doing that.
We're also not interested in doing the entire Symm as striped meta-volumes.
Stuart
Stuart Abramson | Off: 412/825-1434 | Cell: 412/417-1567 | email:
sabramson@wabtec.com
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