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SQL Server 2008
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SQL Server 2008 High Availability
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Mirroring failover
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Mirroring failover
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SQLCrazyCertified
SQLCrazyCertified
Posted Wednesday, February 13, 2013 5:28 PM
Old Hand
Group: General Forum Members
Last Login: Yesterday @ 8:21 PM
Points: 312,
Visits: 1,859
Akkare (2/11/2013)
How many databases we can put in mirroring
Microsoft suggests 10 databases to be mirrored in a single instance, but I have seen more. I guess there will be some performance degradation if there are more than 10.
Also if automatic failover happens all db failover start same time ?
Regarding auto failover, it's depends on which database has issues with mirroring.....if you are asking about a scenario where the whole instance going down and each of the mirroring failover to mirror side.....then, I still think it will failover one by one. I did not encounter this scenario....as of now.
Regards,
SueTons.
Post #1419779
KumarSQLDBA
KumarSQLDBA
Posted Monday, March 11, 2013 10:05 AM
SSC Journeyman
Group: General Forum Members
Last Login: Monday, April 29, 2013 4:03 AM
Points: 81,
Visits: 824
I have come across the below nice tutorials.
Refer http://sqlcat.com/sqlcat/b/technicalnotes/archive/2010/02/10/mirroring-a-large-number-of-databases-in-a-single-sql-server-instance.aspx
Automatic failover failovers all the principal databases to mirror server .
Regards,
Kumar
http://www.sqldbatask.blogspot.com/
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