4 Replies Latest reply: May 4, 2013 7:49 PM by LOWERI444 RSS

Anyone have some suggestions for disk layout to support Oracle RAC ASM diskgroups, keeping in mind scalability?

LOWERI444 Novice
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Anyone have some suggestions for disk layout to support Oracle RAC ASM diskgroups, keeping in mind scalability?

 

We are looking at setting up 5-6 Oracle ASM disk groups to support a single database and NetApp SMO requirements.

  • Diskgroup1-DATA
  • Diskgroup2-RedoLogs
  • Diskgroup3-Temp
  • Diskgroup4-FRA\ArchiveLogs
  • Diskgroup5-OCR\VotingDisk

 

Each diskgroup will contain 2-3 LUNs in one single volume with each diskgroup tied to their own single volume. In other words, 5-6 ASM diskgroup volumes, each with 2-3 LUNs.

 

So my thought is, that this approach doesn't scale well. When a 2nd database is added to the Oracle RAC ASM instance, the ASM diskgroup requirement almost doubles. This is in order to support NetApp SMO.

When a third database is added the diskgroup requirement almost triples, and so on.

 

Am I wrong here? or is there another approach that NetApp recommends?

I've already looked at the various best practices docs and installation guides.

 

Rick

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