Additional information available:

DISK

   The CREATE DISK command will create and  format  a  MS-DOS  virtual
   disk  file which may subsequently be offered to the network via the
   Disk Server.  A virtual disk file will not be created if a file  by
   the same name already exists in the target directory.

   Format:

     CREATE DISK filespec

Additional information available:

ParametersQualifiers

filespec

   filespec is a standard VMS file  specification,  and  is  the  file
   specification  by  which  the virtual disk file will be known.  The
   default file extension for a virtual disk is  ".DSK".   The  target
   directory for the virtual disk file may be explicitly stated in the
   filespec or a standard location may be chosen.  In the later  case,
   the /TYPE qualifier is used to select a target directory.

Additional information available:

/ALLOCATION/CONTIGUOUS/SIZE/TYPE

 /ALLOCATION=n

   Controls the number of blocks to allocate to the virtual disk file.
   This size overrides the implicit size given by the /SIZE qualifier,
   but may not exceed it.  This qualifier may  be  used  to  create  a
   virtual  disk  which is physically smaller than its formatted size.
   The size can then be extended later as needed up to  its  formatted
   size via the MODIFY DISK command.

 /CONTIGUOUS

   Specifies  that  the  virtual  disk  file   should   be   allocated
   contiguous.  If insufficient contiguous space exists, the file will
   be allocated contiguous best try.

 /SIZE=capacity

   Defines the formatted size of the virtual disk.  When  the  virtual
   disk  file  is  created,  it will be allocated the space implicitly
   specified by this qualifier, unless overridden by  the  /ALLOCATION
   qualifier.   The  virtual  disk  will be formatted according to the
   capacity specified.  The possible values for this qualifier and the
   resultant VMS file sizes in blocks are:

   Qualifier value      File size

   360KB                720
   1.2MB (default)      2400
   5MB                  10240
   10MB                 20480
   20MB                 40960
   32MB                 65535

 /TYPE=class

   Determines  a  standard  target  directory  specification  for  the
   virtual  disk  file.   The  qualifier  selects  one of the logicals
   listed below based on the value of class.  The logical is  used  to
   provide   a  default  device  and  directory  when  generating  the
   filespec.  Possible values for the qualifier are:

   APPLICATION

                   The file will be placed in the directory determined
                   by the logical LAD$APPLICATION_DISKS.

   BOOT

                   The file will be placed in the directory determined
                   by the logical LAD$BOOT_DISKS.

   SYSTEM

                   The file will be placed in the directory determined
                   by the logical LAD$SYSTEM_DISKS.

   USER (default)

                   The file will be  placed  in  the  current  default
                   directory.