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What RAID is best ... Oracle8i?

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by michael kane 1 view

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We are looking into changing platforms to a "RedHat Linux 6.2". The database being used is "Oracle 8i". We have a hardware RAID available for usage, and hope that clustering will available.

1) What type of RAID will give us the best performance?
2) Is it possible to do clustering with RedHat systems sharing the same hardware storage - or will Oracle do that for us - or should we research more?
3) Can you add any insight into this matter?

8 replies

by jdroland

#1. RAID 5 should be the best performer unless you're talking about high dollar raid systems above 5.
#2. Oracle will do that, but I would not take anyone's word for that and I would do the research for myself to make sure you are getting the best archetecture for your specific needs.
#3. Remember to disable the controller card cache if you are running a datbase on it. It will cause problems sooner or later if you don't.

by michael kane

I would have enjoyed links to documents too - but I'm not looking a gifthorse in the nouth. Thanks for the help.

by bpalmer

I recently researched using Oracle 8i on a cluster for my client, however they required NT. Using Linux you have a much better selection of clustering. I know from my research that Oracle 8i is a Microsoft cluster aware application, I did not research if they also ran on Linux clusters. Check out their website for more details on that www.oracle.com. Just do yourself a favor and don't call them until your ready to comit and know exactly what you want. My client called them to get a little info and immediately came back to me and said NO WAY! The reason, five minutes on the phone and Oracle was already talking huge amounts of money and huge numbers of consultants co come out and get things in place. This was a small shop with a smallbudget.. Oracle blew the sale for themselves... Back to your questions...

Raid level performance depends on what you mean by performance? pure speed, safety of the data, or combo of both. Microsoft has some good discussions on benefits and drawbacks of various

by khwallis

A word of caution on a side bar, we implemented an Oracle8i database on a Linux server recently. The drivers provided were not compatible, despite their claims. After MANY hours of debugging and haggling with the support staff, we used the driversfor Oracle 8.0.5.

by cal

RAID 0 is the best RAID for performance oriented databases. We are implementing 0 on a Solaris box with oracle 8i.

Cal
*
* Cal Evans
* Professional Nerd Herder
* http://www.calevans.com
*

by michael kane

What do you mean, RAID 0 is the best? Fault toloerance is also an issue at hand - isn't it?

Thanks for your comments, we all have different priorities.

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