In a CLIST, define the variable DSNLVL to contain a data set prefix
of SYS2, and the second qualifier to that of the sysplex on which
the command is executed.
SET DSNLVL = SYS2.&&SYSPLEX
ISPEXEC VSYM (DSNLVL)
When executed on a system that is a member of a sysplex named SYSPLEX1,
the resulting value of DSNLVL is SYS2.SYSPLEX1.