>I am running Windows 2K cluster, TSM 4.2. Early yesterday morning the
>server crashed and would not start (on either node of the cluster). When I
>try and start it manually I get:
>      "ANR0212E. Unable to read disk definition file: dsmserv.dsk"
...

The reason for the crash may be spilling over into the reason you cannot
restart.  In many cases, a failing server will write a dsmserv.err (or
similarly named error log) in its server directory, giving some indication
of cause.  I would check your system for general environmental health
problems, such as full disk partitions or disk usability problems (which
would include the server home directory, the db and recovery log volumes,
and the stgpool disk volumes).  We hope you were using TSM mirroring, to
improve your chances of restarting without db recovery.

   Richard Sims  http://people.bu.edu/rbs