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10.24.2008 at 11:31AM PDT, ID: 23845575
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Stuck on storage when setting up Oracle RAC (10g R2) on VMware /w EMC SAN

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7.0
Zones:

Oracle 10.x, Oracle Database, VMware

Tags:

Oracle, RAC, 10gR2, Setting up On VMware ESX 3.5, EMC, Clariion, CX-10
My question is I am unsure how to proceed providing storage for RAC. Here's some background to help understand my confusion. I have a newly purchased 3-Dell 2950's and an EMC Clariion CX-10 (with 1 shelf) for the purpose of setting up Oracle RAC on 10g (and other stuff). I am an 8i OCP. So so on VMware, and new to SANs. I worked with EMC to setup the SAN. That's pretty straight forward. I worked with another group to setup and configure my VMware cluster. I am proceeding alone on setting up RAC.

When working with EMC I was told many times over and over again how 1 LUN will only ever be attached to 1 host. Therefore, my configuration was 3 LUNs to each of my 3 VM ora guests--so 9 LUNs total. I assumed that somehow OCFS handles going back and forth and keeping things in sync. Which comes to the root of my confusion. I've always thought up to this point there would only be 1 set of datafiles (etc) and those same LUNs would be mounted on all oracle nodes? Is this the case or not?

Also a side note is I'm running standard edition so I can't use OCFS, which is fine so I'll only use ASM.

Now I'm thinking the proper way to do this is I'm redoing my LUNs (b/c I'll have more space) and I'm going to mount all my LUNs onto 1 VM ora guest, and then I'm going to clone that twice over, and then I'll continue on to the next step of installing Oracle CRS.

Thoughts/ comments?

Thank you in advance.
 
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