Problem with getting Mirroring to work

  • I am trying to setup a mirrored database.  The database is identical on both servers. 

    ServerA is the primary, and ServerB is the mirror.  I am logged into ServerA with an account having full administrative access to both servers and both SQL instances.

    When I go through the mirror wizard, it lets me setup the connections; however when I try to start mirroring I am getting the following error:

    The server network address "TCP://ServerA.mydomain.com:5022" can not be reached or does not exist.

    When I look in the SQL logs on ServerB I am seeing Error: 1443, Severity: 16, State: 2. which simply states that mirroring has been terminated. I don't see any errors or other messages related to mirroring on ServerA.

    So it seems like the primary is reaching out successfully to the secondary; but the secondary is not able to talk back. 

    I've verified that the firewall settings on both servers are essentially wide open; they shouldn't be blocking anything on the local network. 

    Any ideas or suggestions would be appreciated...  It's been years since I mucked around with mirroring but when I did, I never had these kinds of problems getting it working 😀

  • cphite - Friday, May 11, 2018 8:56 AM

    I am trying to setup a mirrored database.  The database is identical on both servers. 

    ServerA is the primary, and ServerB is the mirror.  I am logged into ServerA with an account having full administrative access to both servers and both SQL instances.

    When I go through the mirror wizard, it lets me setup the connections; however when I try to start mirroring I am getting the following error:

    The server network address "TCP://ServerA.mydomain.com:5022" can not be reached or does not exist.

    When I look in the SQL logs on ServerB I am seeing Error: 1443, Severity: 16, State: 2. which simply states that mirroring has been terminated. I don't see any errors or other messages related to mirroring on ServerA.

    So it seems like the primary is reaching out successfully to the secondary; but the secondary is not able to talk back. 

    I've verified that the firewall settings on both servers are essentially wide open; they shouldn't be blocking anything on the local network. 

    Any ideas or suggestions would be appreciated...  It's been years since I mucked around with mirroring but when I did, I never had these kinds of problems getting it working 😀

    You could try running through the troubleshooting article for Mirroring. I'd probably check the endpoints first - refer to that section:
    Troubleshoot Database Mirroring Configuration (SQL Server)

    Sue

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