Does SQL Server support 'true' Active/Active Clustering?


does sql server support 'true' active/active clustering?

i believe sql server supports failover clustering 1 node active @ point of time , next node takes work post failover happens automatically/manually triggered.

i got confused today when referred active/active clustering sql server what i understand active/active nodes part of cluster active , accessing same set of database files...like have in oracle rac.

no, sql server not support load balanced clustering in oracle rac or vms clustering.  failover clustering only...

some people use term active/active indicate have instance of sql server running on both nodes.  is, 2 separate sql server instances separate storage , databases.  term multi-instance cluster because each instance running on either node @ given time.  active/passive (both active on node 1, node 2 idle), active/active (one instance active on each node) or passive/active (both active on node 2, node 1 idle).

the problem terminology isn't clear node hosting instance.

jeff williams



SQL Server  >  SQL Server High Availability and Disaster Recovery



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