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MS SQL cluster - How many Instances? And what entails?

Akulsh
Akulsh asked
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Last Modified: 2015-07-14
We have a recently installed MS SQL 2012 cluster.
- How many more instances can be added to it?
- Does each instance requires a separate SQL license?
- How many separate SAN drives will we need for each instance? Currently we have: 1. database 2. log 3. TempDB 4. Backup. Perhaps Backup drive can remain same, but what about TempDB drive? It seems, minimum two new SAN disks be needed?

Thanks.

AjayK
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