RE: RAID

We are running RAID 5 on EMC Symetrix here. The cache on the Sym box does an excellent job of keeping up with Oracle. If I were working with a standard array I would more likely lean towards the RAID 0+1. I've never used it, but the NetApp Filer discussed in another thread uses a RAID 3 implementation. Anyone have any ideas on that??

Rodd Holman
Enterprise Data Systems Engineer
LodgeNet Entertainment Corporation
rodney.holman_at_lodgenet.com
Comments made are my own opinions and views. They do not represent views, policies, or procedures of LodgeNet Entertainment Corporation

-----Original Message-----
From: Jay Hostetter [mailto:jhostetter_at_decommunications.com] Sent: Friday, October 27, 2000 8:51 AM
To: Multiple recipients of list ORACLE-L Subject: Re: RAID

Lee,

  I think the consensus is to use Raid 0+1. Our sysadmin claims that our disk cache is so large, that it doesn't really matter that we are using Raid 5 (we are on Tru64 4.0d). I really don't have the hardware expertise or the time to prove otherwise. I wouldn't mind hearing some comments on that statement from other folks on the list as they reply to your question. I am able to flood the cache during sqlloader runs, but other that that, he seems to be correct.

Jay Hostetter
Oracle DBA
D. & E. Communications
Ephrata, PA USA

>>> lerobe - Lee Robertson <LEROBE_at_acxiom.co.uk> 10/27/00 08:30AM >>>
All,  

I have seen various threads on the subject of Oracle and Raid but don't have any messages stored on the subject so forgive me for the repetition factor.  

Can someone provide a list of do's/don'ts, advantages/disadvantages of using various raid levels with Oracle (in this case 8) on a TRU64 4.0 platform. Database will be approx. 4Tb in size/  

Regards  

Lee  

Lee Robertson
Acxiom
Tel: 0191 525 7344
Fax: 0191 525 7007
Email: lerobe_at_acxiom.co.uk  

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