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SQL Server 2008
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How to check mirrored database
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How to check mirrored database
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shohelr2003
shohelr2003
Posted Wednesday, November 21, 2012 2:13 AM
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Last Login: Tuesday, May 21, 2013 5:32 AM
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Dear,
I have implemented database mirroring with automatic failover option. My principal database is a busy one. Now I am not sure that whether the mirror database is receiving data from principal.
How do I check that ?
Please help me.
Regards,
Akbar
Post #1387292
SQL Show
SQL Show
Posted Wednesday, November 21, 2012 2:41 AM
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Mirrored database can't be accessed at any time. You need to take a Snapshot of mirrored database, then you can query the snapshot (Snapshot option is in only Enterprise Edition).
Also if you use the Mirroring Monitor (in ssms), you can identify whether you mirroring session in sync.
Post #1387306
shohelr2003
shohelr2003
Posted Wednesday, November 21, 2012 4:06 AM
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Actually I am using Standard Edition, so can not create database snapshot.
I went database mirroring monitor and found "Synchronized" from Mirroring State column of both of the server instances.
Does it indicate that data is updated from principal to mirror?
Post #1387338
Bhuvnesh
Bhuvnesh
Posted Wednesday, November 21, 2012 4:20 AM
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shohelr2003 (11/21/2012)
I went database mirroring monitor and found "Synchronized" from Mirroring State column of both of the server instances.
this would be the first assured and positive impression that data is being mirrored
-------Bhuvnesh----------
While 1 = 1 (Learning SQL....)
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Post #1387346
shohelr2003
shohelr2003
Posted Wednesday, November 21, 2012 4:47 AM
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Thank you, so nothing to be worried.
Post #1387361
SQLCrazyCertified
SQLCrazyCertified
Posted Wednesday, November 21, 2012 5:52 AM
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shohelr2003 (11/21/2012)
Thank you, so nothing to be worried.
You should also see next to the principal db says "synchronized"
Since you have witness server, I am thinking, you configured with synchronize mode.
Regards,
SueTons.
Post #1387389
Perry Whittle
Perry Whittle
Posted Wednesday, November 21, 2012 7:46 AM
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SQLCrazyCertified (11/21/2012)
shohelr2003 (11/21/2012)
Thank you, so nothing to be worried.
You should also see next to the principal db says "synchronized"
Since you have witness server, I am thinking, you configured with synchronize mode.
Regards,
SueTons.
With Standard edition, synchronous is the only option available.
-----------------------------------------------------------------------------------------------------------
"Ya can't make an omelette without breaking just a few eggs"
Post #1387435
SQLCrazyCertified
SQLCrazyCertified
Posted Wednesday, November 21, 2012 7:49 AM
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Ohk....thanks Perry.....didn't know that.
SueTons.
Post #1387436
Perry Whittle
Perry Whittle
Posted Wednesday, November 21, 2012 10:05 AM
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SQLCrazyCertified (11/21/2012)
Ohk....thanks Perry.....didn't know that.
SueTons.
Standard only supports full safety, this translates into synchronous mode
-----------------------------------------------------------------------------------------------------------
"Ya can't make an omelette without breaking just a few eggs"
Post #1387506
shohelr2003
shohelr2003
Posted Wednesday, November 21, 2012 9:11 PM
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Last Login: Tuesday, May 21, 2013 5:32 AM
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If I restore database on principal, then what steps should be taken to maintain mirroring? Do I need to do anything on mirror database?
Please help me.
Post #1387680
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