we have a 2-node active-active sql 2012 cluster with 3 sql instances on one node and 2 on the other. one specific role (instance) fails when we attempt to move it from one node to another. after 4 retries it
remains in a failed state with these two entries in the error log:
Error: 17172, Severity: 16, State: 1.
SNIInitialize() failed with error 0x2.
there is a workaround here:
https://social.msdn.microsoft.com/Forums/sqlserver/en-US/ffb71e7d-0d55-463f-98c6-f8efde1c157c/sql-server-2008r2-cu6-error?forum=sqlsetupandupgrade
...which does work for us but requires manual steps (delete the 'cluster' registry key) to be performed during failover which means there will be an outage while we perform those steps.
are there any details on the underlying cause? and a possible fix that allows automated failover to be successful?
thanks
rob