IBM Professional Series User Manual page 166

LINK on your remote VM system, and the results of the
LINK command would be sent back to you. (Note that
LINK
*
is only valid if the userid of the local and remote
systems are the same).
Additionally, if you issued the command "ACCESS 191 Z"
on your local CMS session and 191 was a remote minidisk,
VM/PC would send an ACCESS request to the remote VM
session where the VMPCSERV program would perform the
actual ACCESS of the minidisk. The VMPCSERV program
uses the same mode letter which you specify to perform the
access. Therefore, the VMPCSERV program issues the
CMS command" ACCESS 191 Z" and the remote access is
done.
Likewise, a file being printed on your remote system uses the
remote printer services of the VMPCSERV program. When
your local program prints a line, the request is sent to the
VMPCSERV program, which invokes the printer services of
VMPCSERV to actually print the line on your remote
printer. Thus the remote printers are accessible to programs
running in your local CMS session.
All remote services are performed for you in your remote
session, as requested by you from the local session. Thus if
you write to a file on a remote minidisk, the local session
sends a request and the data to be written to the
VMPCSERV program, which actually performs the write to
the file you specified.
The VMPCSERV program continues to wait for requests to
be done until you stop it by pressing the PF3 key. At this
time, VMPCSER V releases all of the minidisks which you
have accessed from the local VM session, and detaches all
virtual devices acquired during the time the remote services
program was executing. VMPCSERV recorded which disks
were accessed when it started execution, and restores those
minidisks to your CMS environment by accessing them as
you had them accessed originally. VMPCSERV then
terminates processing, and your remote CMS session is
restored.
Chapter 6. Remote Services 6-17