tape_34xx.cfc6c4 <bus ID of the tape device>: An equipment check has occurred on the tape unit
Explanation
Possible reasons for the check condition are a unit adapter error, a buffer
error on the lower interface, an unusable internal path, or an error that
has occurred while loading the cartridge.
User response
Examine the tape unit and the cartridge loader. Consult the tape unit
documentation for details.