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.
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.