Monthly Archives: October 2014

Add Database File on Database invloved in DB Mirroring.

The 4thcumulative update release for SQL Server 2014 RTM is now available for download at the Microsoft Support site. Cumulative Update 4 contains all the hotfixes released since the initial release of SQL Server 2014 RTM.

Those who are facing severe issues with their environment, they can plan to test CU4 in test environment & then move to Production after satisfactory results.

To other, I suggest to wait for SP1 final release to deploy on your production environment, to have consolidate build.

KB Article For CU4 of SQL Server 2014 RTM

• CU#4 KB Article: http://support.microsoft.com/kb/2999197

Previous Cumulative Update KB Articles:

• CU#1 KB Article: http://support.microsoft.com/kb/2931693
• CU#2 KB Article: http://support.microsoft.com/kb/2967546
• CU#3 KB Article: http://support.microsoft.com/kb/2984923

Reference : Rohit Garg (http://mssqlfun.com/)

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http://beyondrelational.com/members/RohitGarg/default.aspx

1) After connecting to the principal server instance, Right-click the database & go to properties. Select Mirroring from left side option.

2) To remove the witness, delete its server network address from the Witness field.

3) Click Ok to confirm.

You can also perform the same action by below T-SQL.

ALTER DATABASE database_name SET WITNESS OFF

Reference : Rohit Garg (http://mssqlfun.com/)

You can find and follow MSSQLFUN :-

http://www.facebook.com/mssqlfun

http://mssqlfun.com/feed

https://twitter.com/Rgarg86

Other Linked Profiles :-

http://www.sqlservercentral.com/blogs/mssqlfun/

http://social.msdn.microsoft.com/Profile/rohitgarg

http://www.toadworld.com/members/rohit-garg/blogs/default.aspx

http://beyondrelational.com/members/RohitGarg/default.aspx

Database Mirroring works on transaction logs. It applies transaction logs from Principle to Mirror. But Operation like addition of file is no log operation because of that file not be added to Mirror automatically.

Steps to Add Database File on Database involved in DB Mirroring :-

1) Break the Mirroring

ALTER DATABASE USERDB1 SET PARTNER OFF

2) Add New Data or log file, whatever is required

USE [master]

GO

ALTER DATABASE [UserDB1] ADD FILE

( NAME = N’UserDB1_1′,

FILENAME = N’H:MSSQL12.INS1MSSQLDATAUserDB1_1.ndf’ ,

SIZE = 3072KB , FILEGROWTH = 1024KB )

TO FILEGROUP [PRIMARY]

3) Take Transaction Log backup at Primary

BACKUP LOG USERDB1 TO DISK = ‘C:USERDB1_LOG.TRN’

4) Restore Step 3 Transactional Backup on Mirror with Move option

RESTORE LOG [USERDB1] FROM

DISK = N’C:USERDB1_LOG.TRN’

WITH Move N’UserDB1_1′ TO

N’I:MSSQL12.SQL14I2MSSQLDATAUserDB1.ndf’,

NORECOVERY, NOUNLOAD, STATS = 10

5) Reestablished DB Mirroring again

First on Mirror

ALTER DATABASE USERDB1

SET PARTNER = ‘TCP://SQL2014.RohitGarg.local.in:5022’

Second on Principle

ALTER DATABASE USERDB1

SET PARTNER = ‘TCP://SQL2K14_2.RohitGarg.local.in:5022’

NOTE : In case your Database Mirroring has same file structure at both principal & mirror then no special steps needed. Once you add file at principal, file automatically added to mirror database. Above steps are valid only for different  file structure at both principal & mirror.

Thanks to my friend Sachin for pointing this to me.

Reference : Rohit Garg (http://mssqlfun.com/)

You can find and follow MSSQLFUN :-

http://www.facebook.com/mssqlfun

http://mssqlfun.com/feed

https://twitter.com/Rgarg86

Other Linked Profiles :-

http://www.sqlservercentral.com/blogs/mssqlfun/

http://social.msdn.microsoft.com/Profile/rohitgarg

http://www.toadworld.com/members/rohit-garg/blogs/default.aspx

http://beyondrelational.com/members/RohitGarg/default.aspx