DYNAM


          .-,-----------------------.     
          V                         |     
>>-DYNAM(---(--volser--+-------+--)-+-)------------------------><
                       '-,unit-'

DYNAM specifies the volume that you want to process must be dynamically allocated. The volume must be mounted and online. You cannot specify a nonspecific volume serial number by using an asterisk (*). Use this keyword to designate the list of volumes that you need to convert. Use the DYNAM keyword when you do not specify the DDNAME keyword.

Consider using DYNAM instead of DD statements to allocate DASD volumes. This does not noticeably increase run time and presents easier coding of JCL and command input.

volser: Specifies the volume serial number of a DASD volume to be processed. Up to 255 volumes can be specified.
unit: Specifies the device type of a DASD volume to be processed. This parameter is optional.