Page of GC20-1821-3 As Updated April 1, 1981 by TNL GN25-0840 CMS SYSTEM For VM/370 in a virtual machine to also run CMS, it must have access to
the eMS system residence volume. The virtual machine can access this
volume either before logon (by using the LINK statement in the directory
entry) or after logon (by using the CP LINK command). If passwords are
provided, the virtual VM/370 system can link to other users' disks so
that they can be used as primary disks by the CMS system. Thus, under
the one userid for the virtual VM/370 system, this system can access all
the disks necessary to do a virtual system VMFLOAD or any other similar
function. 2305 DEVICES It is probably not necessary to have a 2305 paging device in the
configuration unless the test specifically addresses that device. If
this device is required and if the real configuration allows it, the user may define temporary 2305 space for a paging volume. Depending
upon the nature of virtual machine testing, one or more teleprocessing
lines can be defined so that users may use the DIAL command to access
the VM/370 system in a virtual machine. In most cases, simple tests do
not require teleprocessing lines to be defined or enabled at the virtual
machine level. Most testing can be performed by the operator's virtual
machine from the virtual console.
Section 2. VM/370 in a Virtual Machine 52.1
April 1, 1981
52.2 IBM VM/170 Operatinq Systems 1n a Virtual Machine
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