multi instance failover clustering (sql server)

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multi instance failover clustering (sql server) – Managing your servers can streamline the performance of your team by allowing them to complete complex tasks faster. Plus, it can enable them to detect problems early on before they get out of hand and compromise your business. As a result, the risk of experiencing operational setbacks is drastically lower.

But the only way to make the most of your server management is to perform it correctly. And to help you do so, this article will share nine tips on improving your server management and fix some problem about windows, windows-server-2008, active-directory, sql-server, windows-server-2012.

just want to straighten my concept properly – when we are talking about SQL multi instance failover cluster, e.g. on a 2 node cluster, it means that each node can run its own sql instance, but each instances are running its own database right ?

e.g. 2 nodes (node1, node2)
sql instance A on node1
sql instance B on node2

sql instance A and B are individual instances and are not sharing the same database right ?

when node1 is down, SQL instance A will move to node2 but both sql instance A and B are still separate databases – right ?

Solution :

That’s correct. A traditional failover cluster may contain multiple instances, and each instance may contain multiple databases. A database is part of only one instance, and an instance only runs on one node at a time.

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