could not start TSM server instance for the first time

When i run the c:\Program Files\Tivoli\TSM\server>dsmserv -k server1 command it gives
ANR0212E Unable to read disk definition file dsmserv.dsk.
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c:\Program Files\Tivoli\TSM\server>dsmserv -k server1
ANR0900I Processing options file c:\Program Files\Tivoli\TSM\server\dsmserv.op-
t.
ANR7800I DSMSERV generated at 16:54:43 on Dec 7 2006.

Tivoli Storage Manager for Windows
Version 5, Release 4, Level 0.0

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ANR4726I The ICC support module has been loaded.
ANR0990I Server restart-recovery in progress.
ANR0212E Unable to read disk definition file dsmserv.dsk.

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i dont have dsmserv.dsk