You can use the access method services ALLOCATE or TSO ALLOCATE command to define a temporary system-managed VSAM data set. A temporary system-managed data set can also be allocated directly through JCL.

   DSNAME(&CLUSTER)

See Examples of Defining Temporary VSAM Data Sets for information about using the ALLOCATE command to define a temporary system-managed VSAM data set. See Temporary VSAM Data Sets for information about restrictions on using temporary data sets.