OCS 2007 R2 with SQL 2005 database mirroring failover?

Question

We have OCS 2007 Enterprise Edition installed fine and with the databases mirrored to a backup server/location.  I'm testing our environment for a potential disaster, including losing our primary SQL server (SQL 2005).  I fail the databases over and update the backend pool to the backup SQL server name, but we cannot connect via Office Communicator and I see this error on the OCS server:
OCS User Services, error category 1006, event id 30962:
Connection to back-end database succeeded, but failed to execute registration stored procedure on the back-end. This error should not occur under normal operating conditions. Contact product support.
Back-end Server: databkp Database: rtc Sql native error: 515 Connection string of:
driver={SQL Native Client};Trusted_Connection=yes;AutoTranslate=no;server=databkp;database=rtc;
Cause: Possible issues with back-end database.
Resolution:
Ensure the back-end is functioning correctly.
Can anyone shed some light on this SQL 515 error?  Thanks in advance!
-Erik

Answer 1

We're having a similar issue but with error number 601. I've tried a million different things aside from restoring the database, which may be next. I tried editing the procedure and I *think* I edited the right lines 77 and 105 for me. Changed:
    delete dbo.DbConfigDateTime
      from @DbTime as t
     where dbo.DbConfigDateTime.Name = t.ValueName
       and t.StoredDbName = N'rtc'
       and t.Value is null
to:
    delete dbo.DbConfigDateTime
      from @DbTime as t
     where dbo.DbConfigDateTime.Name = t.ValueName
       and t.StoredDbName = N'rtc'
       and t.Value is not null
and 
    delete rtcdyn.dbo.DbConfigDateTime
    from @DbTime as t
    where rtcdyn.dbo.DbConfigDateTime.Name = t.ValueName
    and t.StoredDbName = N'rtcdyn'
    and t.Value is null
to:
    delete rtcdyn.dbo.DbConfigDateTime
    from @DbTime as t
    where rtcdyn.dbo.DbConfigDateTime.Name = t.ValueName
    and t.StoredDbName = N'rtcdyn'
    and t.Value is not null
Not sure if that's where the modification is supposed to go. Any clarity here? Anyone else get a 601 error?