This database is done image (no witness), the main database log error.
Some time ago to have a error:9642 look at the saying is' database mirroring endpoint error in transmissionconnection ', the error of 5, 6 times then no longer prompt.
Today and the emergence of error:9643 data that is' database mirroring transfer manager error'.
The tip: database mirroring to do for a few months, only recently some tips
