This command is used to initialize additional space for the Virtual Volumes Entries (VVEs) in the BSDS and Global VCAT when these data sets are being increased in size.
EXPAND CDS,VOLUMES=nnnnnn [,CONVERT]
Where nnnnnn is the required increase in the number of Virtual Volumes.
The optional parameter CONVERT is required only when the control files are initially expanded to contain more than 510,800 virtual volumes. To find out more about expanding control data sets, see Expanding and Converting the Control Data Sets.
Sample JCL can be found in HLQ.CCUUJCL(EXPAND).
Note: You must shut down all CA Vtape subsystems using the Global VCAT and BSDS to be expanded before executing the EXPAND JCL.
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