RE: Laying out Oracle on a SAN

Doug

If the SAN people are flexible enough and as you hinted below, you are worried 
about IO through put, you should use RAID 10 instead of RAID 5. A little bit 
faster but with a bit more space lost. Now, that may still be cheaper than 
special arrangements to improve IO for redo logs and temp

William
________________________________________
From: oracle-l-bounce@xxxxxxxxxxxxx [oracle-l-bounce@xxxxxxxxxxxxx] On Behalf 
Of Douglas Cowles [dcowles@xxxxxxxxxx]
Sent: Saturday, February 06, 2010 1:25 AM
To: oracle-l@xxxxxxxxxxxxx
Subject: Laying out Oracle on a SAN

Looking for tips as to laying out an Oracle DB on a SAN.   I assume you 
probably want the fastest I/O for the redo logs and temp?
The  SAN I am working with has LUNS are carved up out of 10 or so disks on 
RAID5.   Does it matter if we put the archive logs and the datafiles on the 
same LUN?  Are these kinds of questions better suited to the SAN expert?  
Assuming I can defer a lot to the SAN expert, what I/O requirements and path 
requirements should I provide them?   Centralized storage is centralized 
storage so I'm not sure how to parse things out.    I also realize a lot of 
this may depend on the kind of SAN and its particular characteristics, but are 
there generic rules that can be provided?

Doug C
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