Section 4.2.3.6
 
Use the monitor V or VRUN command to start a completely virtual background
job.  The R or RUN command can also be used to automatically start a
completely virtual background job; see Section 4.2.3.2.1.  The file should
have the .SAV file type.  A completely virtual background job loads into
available extended memory.  None of the job's address space is in low memory
although some low memory is used by the monitor on behalf of the job for
satisfying any .FETCH, .CDFN, and .QSET requests.  A completely virtual job's
impure area resides in RMON like all other background jobs.
 
Since none of the job's memory is mapped to low memory, the physical vector
area between physical locations 0 and 476 is not directly accessible by a
completely virtual background job.
 
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Section 4.2.3.7
 
Use the FRUN SY:VBGEXE.SAV/NAME:prgnam command to start a completely virtual
foreground job.  Use the SRUN SY:VBGEXE.SAV/NAME:prgnam command to start a
completely virtual system job.  The file should have the .SAV file type.
A completely virtual foreground or system job loads into available extended
memory.  None of the job's address space is in low memory although
some low memory is used by the monitor on behalf of the job for satisfying
any .CDFN and .QSET requests.  A completely virtual foreground or system
job's impure area also resides in low memory like all other foreground and
system jobs.
 
Since none of the job's memory is mapped to low memory, the physical vector
area between physical locations 0 and 476 is not directly accessible by a
completely virtual foreground or system job.