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SQL Server 2008
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SQL Server 2008 - General
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Failover Problem
Failover Problem
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shohelr2003
shohelr2003
Posted Tuesday, December 04, 2012 3:54 AM
SSC-Enthusiastic
Group: General Forum Members
Last Login: Today @ 1:08 AM
Points: 126,
Visits: 350
Dear,
I have configured mirroring with high safety without automatic failover mode. For testing purpose I want to failover between Principal and Mirror. Say, Principal server gets down. Now I want to switch role of Mirror to Principal. But how? Please let me know.
Imagine, Mirror is now Principal and former Principal Server is live again. At this time I want that former Principal takes the role of Principal and start functioning. But how? please let me know.
Regards,
Akbar
Post #1392343
Gazareth
Gazareth
Posted Tuesday, December 04, 2012 4:11 AM
UDP Broadcaster
Group: General Forum Members
Last Login: Monday, June 10, 2013 4:11 AM
Points: 1,474,
Visits: 2,344
Run this on whichever is the principle at the time:
ALTER DATABASE dbname SET PARTNER FAILOVER
They'll need to be synchronized first though.
Post #1392348
shohelr2003
shohelr2003
Posted Tuesday, December 04, 2012 9:52 PM
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Last Login: Today @ 1:08 AM
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Actually my Principal server got down. It will take some hours to be ok. That's why I have to use Mirror database to run my application. In Mirror database it is stated as
myDB (Mirror, Disconnected/ In Recovery)
. But I configured mirroring with high safety without automatic failover mode. So I have to make Mirror as Principal. But how?
I can't do it. Please help me.
Post #1392781
Perry Whittle
Perry Whittle
Posted Wednesday, December 05, 2012 2:56 AM
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Last Login: Yesterday @ 2:58 PM
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If the principal is down and you want to bring the mirror up you will need to force service using
ALTER DATABASE mydb SET PARTNER FORCE_SERVICE_ALLOW_DATA_LOSS
-----------------------------------------------------------------------------------------------------------
"Ya can't make an omelette without breaking just a few eggs"
Post #1392867
Gazareth
Gazareth
Posted Wednesday, December 05, 2012 4:24 AM
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Last Login: Monday, June 10, 2013 4:11 AM
Points: 1,474,
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Apologies, misread the question. Perry's command is what you need.
Post #1392910
shohelr2003
shohelr2003
Posted Wednesday, December 05, 2012 8:18 PM
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Last Login: Today @ 1:08 AM
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Thank you, Sir. Actually Perry's command worked for me.
Post #1393300
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