reconnect Mirror RRS feed

  • Question

  • I have SQL 2008 Enter

    mirror DB was synced and connected ,suddenly it has a synced and disconnected  

    there is no "resume " option , only remove mirror

    I tried reconfigure security , although it successfully completed but didn't resume the mirror 

    I don't like remove mirror , kindly advice

    Wednesday, October 15, 2014 9:51 AM


All replies

  • Hi,

    I cannot guess exact reason why it happened. Please refer to errorlog to find out why your mirroring broke.

    You can run below command on Mirror to break mirroring and then you would have to reconfigure it.

    --Run this on mirror database 
    use master
    alter database db_name set partner off
    restore database db_name with recovery

    Please mark this reply as answer if it solved your issue or vote as helpful if it helped so that other forum members can benefit from it

    My Technet Wiki Article


    Wednesday, October 15, 2014 11:37 AM
  • Hi AhmedNawwar,

    As Shanky’s post, please check the SQL Server error log to get the disconnection reason. Also check all things about mirroring from the following tables:

    SELECT * FROM sys .dm_db_mirroring_auto_page_repair
    SELECT * FROM sys .dm_db_mirroring_past_actions
    SELECT * FROM sys .dm_db_mirroring_connections
    SELECT * FROM sys .database_mirroring
    SELECT * FROM sys .database_mirroring_endpoints

    Usually, we use the following steps to resolve the issue that mirrored database are disconnected. For more details, you can review this similar blog.
    1. Resume mirror by running the following on the principal.


    2. Restart the endpoints on both servers.

    ALTER ENDPOINT endpointName state = STOPPED
    ALTER ENDPOINT endpointName state = STARTED

    Lydia Zhang

    Thursday, October 16, 2014 3:40 AM
  • thank you for all , I've just restart to machines and database begin syncing again  
    Friday, October 17, 2014 8:43 PM