The server has attempted to open a disk volume but has discovered that the volume is in use by another server.
The open operation fails for the volume.
To prevent concurrent RAW volume access by more than one server, files are created in the /tmp directory to 'lock' these volumes. The names of these temporary files are /tmp/adsm.disk.dev.<volumename> where <volumename> is the name of the RAW volume defined in the /dev directory. Please note that the name for a RAW logical volume as defined in Solaris is in the /dev directory with a leading 'r' character (for example, a raw volume defined in Solaris on a regular SCSI drive as dsk/c0t0d0s0 will be represented in the /dev directory as the file /dev/rdsk/c0t0d0s0). For a REGULAR DISK volume, the server automatically locks/unlocks a volume. Different linked file names pointing to the same volume will cause this message since the server locks the linked volume, not the link name itself.
You may use the Solaris 'ps -ef | grep dsmserv' command to determine if other dsmserv processes are running. You may remove the temporary lock files for RAW volumes and attempt to re-start the server ONLY if there are no other dsmserv processes are running.