While setting up
mirroring between 2 servers I came across following error
The server network
address TCP://<servername>.<domain>.com:<portnumber> can not
be reached or does not exist. Check the network address name and that the ports
for the local and remote endpoints are operational. (Microsoft SQL Server, Error:
1418)
After setting up database
mirroring security configuration I started mirroring between 2 servers and
immediately I got this error. The error however does not tell you much about
the actual problem. I tried changing firewall setting, checked that the service
account is correct on both primary and mirror. I also tried ping from either
machines and it worked fine.
But after checking
the BOL I found the issue. Before setting up mirroring you have full backup database
on primary and restore it on mirror as “WITH NORECOVERY”.
NORECOVERY specifies
that roll back not occur. This allows roll forward to continue with the next
statement in the sequence. In this case, the restore sequence can restore other
backups and roll them forward.
After restoring with NORECOVERY I
did a log backup on primary and restored it on mirror. Once done mirroring
worked as expected.
Please note that in
SQL Server 2008 & R2 mirrored copy is not readable. In SQL Server 2012 with
help of Always On availability groups you can make mirrored copy readable.
