Database Mirroring - Error

  • Newbie here..Im trying to get mirroring going on 2 new (identical) servers using the wizard. Both running Windows 23k/SP2 etc. No witness.

    When I try to set mirroring I get the following message and cant work out why...

    -> One or more of the server network address lacks a fully qualified domain name (FQDN). Specify th e FQDN for each server. Mirroring and click Start again.

    -> The syntax for a fully-qualified TCP address is:The syntax for a fully-qualified TCP address is :

    -> TCP://.[.]:TCP : //.[.]:

    The primary is called SQL0 and the secondary is SQL1. I have tried:

    Principal: TCP://sql0:5022

    Mirror: TCP://sql1:5022

    and

    Principal: TCP://sql0:5022

    (eg) Mirror: TCP://sql1.domain.com:5022

    I can telnet on port 5022 both ways and can access the databases via Copy Database Wizard feature etc. Any ideas?

  • I'm having the same issue and would love to figure out what I'm doing wrong.

    My servers are identical as well running on a Workgroup and I'm trying to mirror via a WAN vs local network connection.

    Thanks,

    Paul

  • Can you ping the server by FQDN ? Maybe it is a network issue.

  • Yes, I can ping from both ends. Still stumped. 🙁

  • Not sure if this is the most optimal work around, but is does work. Edit the host file on all three

    servers...your principal, your mirror and your witness. In the host file create a FQDN for each server.

    Example:

    10.0.0.1 principalservername.domainname.local

    10.0.0.2 mirrorservername.domainname.local

    10.0.0.3 witnessservername.domainname.local

    the domain name can be your domain name and just add .local to the end.

    This worked for me.

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