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When to manually fail over a database mirroring session?
Manually Fail Over a Database Mirroring Session (SQL Server Management Studio) When the mirrored database is synchronized (that is, when the database is in the SYNCHRONIZED state), the database owner can initiate manual failover to the mirror server.
How to use database mirroring monitor in SQL Server?
The dbmmonitor system stored procedures can be used as an adjunct to the Database Mirroring Monitor. For example, even if monitoring was configured using sp_dbmmonitoraddmonitoring, Database Mirroring Monitor can be used to view the status.
What’s the default mirroring timeout for SQL Server?
On SQL Server 2008 R2, I’m mirroring 20 databases on my SharePoint SQL Server with a witness, high-safety. All mirrored DBs have the default mirroring_connection_timeout = 10. And, occasionally, a handful of DBs will failover to the mirror (not more than once a month).
Where is database mirroring status stored in MSDB?
Database mirroring status is stored in an internal, undocumented database mirroring status table in the msdb database. This status table is automatically created the first time the mirroring status is updated on the server instance.
What happens when you fail over a mirror server?
During a manual failover, the principal and mirror server roles are swapped for the database on which the failover occurs. The mirror database becomes the principal database and the principal database becomes the mirror.
Are there mirrored servers in SQL Server 2012?
The mirrored servers are SQL Server 2012 and the box I’m trying to create a linked server on is SQL Server 2005, but I also have the same problem when creating the linked server on a SQL Server 2008 R2 box. I’ve seen reports that it does work. What am I missing? Thank you! I’ve made progress.
Can a linked server work after a failover?
The linked server will work after a failover, but if I failover back to the original server, it stop working. A restart of the SQL Server service on the server with the linked server will let it work again (for 1 failover). Letting things sit overnight must work too since it worked the first time I tried it today.