Cross-Availability Group Login Management

David Fowler walks us through a problem about orphaned users and Availability Groups:

Now, I’m pretty sure that most of us will have been in the position where, after a fail-over we get inundated with calls, emails, Skype messages and carrier pigeon drops letting us know that so and so can no longer access the database.

When you look into it, you either find that the login never existed in the first place, so you create it or that it was there but the database user has become orphaned from it (happens when the login SID doesn’t match the SID of the database user, Adrian wrote about orphaned users in Dude where’s my access?).

You remap the orphaned user and everything is good again…  that is until the next time you failover and once again you’ll be hit with the same orphaned user problem.

Click through for the explanation and a permanent fix for this issue.

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