Monday, August 4, 2014

SQL Server- How many IP Addresses used in SQL Server Clustering?

  • 2 IP for heartbeat network (1 per node)

  • 2 IP for public network (1 per node)

  • 1 IP for Windows Cluster.

  • 2 IP for SQL Server Virtual Network Name (SQL instance on each node)

  • 1 IP for MSDTC (this is optional however required if you use distributed transaction like linked server)

For Single Instance single cluster ( active/passive)
In above instead of two you will only need one IP address for SQL Server virtual network name.

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