You can assign multiple virtual machines the favored execution option only one virtual machine at a time can be assigned a specified favored
percentage value.
set favored operatns 75
set favored payroll
set favored revenue
set favored hot jobsVIRTUAL=REAL OPTION The virtual=real option permanently relocates the CP nucleus (except for
real page0) to provide space in real lower storage to contain the
largest virtual=realmachine. For the virtual machine, each page froa
page 1 to its last or page is in its true real storage location; only its page zero is relocated. The virtual machine still runs in
relocatemode, but because each virtual page frame address is the same as the real page frame address, the virtual machine requires no CCW translation for the virtual machine. Because no CCW translation is DO check is made of the I/O data addresses. The virtual
machinemust ensure that no I/O data transfer occurs into real page zero
or beyond the upper boundary of the virtual aachine's storage. Failure
to observe these limits can cause daaage to theVM/370 systea or to
other virtualmachines. Initial program loading of a named or shared systea is not allowed in
the virtual=realmachine; the hexadeciaal device address must be used. Several aspects of the operation of the virtual=real option can
affec't overallsystem operation:
1. The area of contiguous storage built for the virtual=realmachine must be large enough to contain the entire addressing space of the
largest virtual=real.achine. 2. Only virtual machines with the virtual=real option can use the real
storage reserved for virtual=realmachines. Only one virtual=real virtual machine can run at a time. The storage is not available
for other users, nor forVM/370 use, unless the virtual=real
machine is not logged on andyou issue an UNLOCK command with the VIRT=REAL option. When you this command, all page frames previously reserved for the virtual=real machine are permanently
relinquished to the available-page pool.Once these virtual=real
pageframes are available to the page pool, no virtual=real machine can run until you load VM/370 again (via IPt). For this reason, it
is suggested that the virtual=real aachine should machine with
high availability and heavy workloaddeaandso It possible
to relinquishonly soae of the virtual=real page frames (if, for
exaaple, asmaller virtual=real aachine is to be run). All
virtual=real page fraaes are locked until all are released to the
pool.Section 2. Initiating VM/370 Operation 29
percentage value.
set favored operatns 75
set favored payroll
set favored revenue
set favored hot jobs
real page
largest virtual=real
page 1 to its last or
relocate
machine
or beyond the upper boundary of the virtual aachine's storage. Failure
to observe these limits can cause daaage to the
other virtual
the virtual=real
affec't overall
1. The area of contiguous storage built for the virtual=real
largest virtual=real
storage reserved for virtual=real
for other users, nor for
machine is not logged on and
relinquished to the available-page pool.
page
is suggested that the virtual=real aachine should
high availability and heavy workload
to relinquish
exaaple, a
virtual=real page fraaes are locked until all are released to the
pool.