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Home -> Community -> Mailing Lists -> Oracle-L -> RE: The good old RAID5 argument...
Thanks to all for your input.
I am assuming that there will not be a problem in "splitting" some disks out of the RAID-5 Array for use as Redo Log storage.
Martin
-----Original Message-----
Sent: 22 May 2001 15:06
To: Multiple recipients of list ORACLE-L
If that is the cause, RAID 5 does not suffer the performance hits during read operations, but can prove as much as 60% performance loss than a single disk on writes. With write-back cache (accellerated controller) it can be significantly less depending on the controller.
If it is truely near read only, Raid 5 is "acceptable" as you will get good performance but if you do decide to write it will be slower. But concidering there are very few writes, there will also be little contention.
I would stick keep my logs off Raid 5 if at all possible.
-----Original Message-----
Sent: Tuesday, May 22, 2001 6:32 AM
To: Multiple recipients of list ORACLE-L
Guys, this is not an attempt to start that "old" discussion but:-
I have been told to install Oracle + a DB on an IBM RS6000 box with nothing
but a RAID5 disk array on it.
I have explained my misgivings on this but I am told that the DB will be
used mainly for read-only
operations with very few modifications to the data (apart from the initial
load of 100GB....).
Any ideas on the best approach, given the circumstances........
Thanks all
Martin Kendall
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Martin Kendall
INET: Martin.Kendall_at_Rubus.com
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Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists --------------------------------------------------------------------To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). Received on Wed May 23 2001 - 12:25:55 CDT
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