I suggest looking at "SQLServer:Buffer Manager" in PerfMon to see how the buffer is doing. If there are buffers being flushed out you'll see it there. You'll also see the...

tried it, the results were:

Msg 3104, Level 16, State 1, Line 1

RESTORE cannot operate on database 'ifail2' because it is configured for database mirroring or has joined an availability group....

There's a free eBook available from Microsoft

http://blogs.msdn.com/b/microsoft_press/archive/2012/03/15/free-ebook-introducing-microsoft-sql-server-2012.aspx

Nope, not even that is working:

Msg 3743, Level 16, State 1, Line 1

The database 'ifail2' is enabled for database mirroring. Database mirroring must be removed before you drop the database.

I'm guessing the printing is initiated by a trigger? In that case include a condition inside the trigger which initiates the printing of a second letter in cases where the...

Well, I recreated the whole situation (as I've solved the first situation by adding drive M) and this is the state after adding the new datafile, which cause the mirroring...

Nope, mirroring was removed from the principal right after mirroring was suspended. Resuming mirroring (before disabling it on the principal) was also impossible (without adding drive M to the mirror),...

Every time I try to issue the SET PARTNER OFF this gets written to the log:

"2012-10-26 07:29:21.63 spid36s Error: 5123, Severity: 16, State: 1.

2012-10-26 07:29:21.63 spid36s...