Page of GC20-1821-3 As Updated April 1, 1981 by TNL GN25-0840 releasinq temporary minidisks, description
18
remote spooling communications subsystem RSCS) reserved devices
real VM/370 reserve/release support,
defining for 21
specifying VM/370 reserve/release
support between processors 21
reserved pages, performance option,
specifying for virtual machines 36
reserve/release support by VM/370 for DASD devices used by
operating systems 20-23 for dedicated volumes, example 22
for single real processors 22 RCTLUNIT macro, specifying for reserved
devices 21 RDEVICE macro, specifying for reserved
devices 21
real
definition of 20 mutually exclusive with VM/370 alternate path support 20 processing for DASD with alternate
path support 20-21 summary of VM/370 reserve/release
effect on 22-23
reserved devices, VM/370 generation and
usage considerations 21
shared min idisks, limita tion issuing ccw
commands to 21
summary 22-23
virtual
definition of 20 for users accessing same minidisk via
LINK control statements 21
specifyinq in MDISK control statement
21
summary of VM/370 reserve/release
effect on 22-23
using with VM/370 alternate path
support 20 response time, emphasizing performance for
under VM/370 37 restorinq contents of saved virtual
machine, using IPL command 42. 1 RSCS (remote spooling communications
subsystem) S VM/370 component, brief of
2
saved systems VM/370 for DOS/VS 70 for OS/VS 108 saving contents of virtual machine
using VMSAVE option 42.1
using VMSAVE option (2148-X]j) 42.1
second level directory SLD) second level storage, definition 5
segment tables
defining for a virtual operating system,
using SET STMULTI command 34.3-34.5
shadow table bypass restrictions, for V=R users 34
selective invalidation, of shadow tables
below high-water mark 34
service programs, VM/370, using 120-121 Service Record File (SRF) device,
formatting error recording area, for
printed output 4 SET command
enabling and disabling MVS/System Extensions support 42.2
shadow table support
defining concurrent tables for
virtual machines 33,34.3
defining hiqh-water mark for
selective invalidation 34
defining high-water mark for shadow
tables 34.1
eliminating tables for V=R virtual
machine users 34
selecting values for STBYPASS nnnnnK
operand 34.1-34.2
selecting values for STMULTI operand 34.3-34.4 STBYPASS nnnnnK operand for V=R users
(usaqe note) 34 STFIRST option permits use of STBYPASS nnnnnK operand 41 STMULTI operand for V=R users (usage
note) 34
specifying options
for virtual machine operatinq systems 40-42 for virtual machine operating systems 40 for virtual machine operating systems 40-42.2 shadow table maintenance support shadow tables; VM/370 System Extensions program product)
shadow tables
bypass function
for V=V users 34.1
specifying with SET STBYPASS command (.2148::.!]1) 34 V=R user usage and restrictions (2148::.!]1) 34 V=V user usage and restrictions 34.3
defining concurrent tables for virtual
machine
using SET STMULTI command 33,34.3-34.4
selectively invalidating below
high-water mark 34
shared DASD, VM/370 reserve/release support
for 20- 23
146 IBM VM/370 Operating systems a virtual Machine

Page of GC20-1821-3 As Updated April 1, 1981 by TNL GN25-0840 single processor mode
enabling and disabling for VM/370 138-138 .. 2
for dedicated processor
effect on shadow table bypass
function for V=R users (5748-XE1) 34
error recording considerations 138.2 VM/370 dumping procedures <.2148-XEj} 138.2
single-user virtual machines (see batch virtual machine) SIO instructions, reducing number executed
by virtual machines 6 SLD (second level directory)
reducing entries read, for DOS/VS virtual machine 73 SPECIAL control statement
examples
defining devices with special I/O protocol (caution) 46
specifying a device as primary
console 15
specifying a remote terminal as
secondary console 15-16 specifying virtual CTCA for ASP virtual machines 32
unique considerations, for virtual
machine operating systems 45 SPOOL control examples
defining devices with special I/O protocol (caution) 46 defining VM/370 virtual machine 51
spool devices, accessing, by VM/370 virtual
machine 55
spool files
closing, using VM/VS handshaking 114
defining, for OS/VS virtual machine 128
spooling
double spoolinq operations, handling for VM/370 virtual machine 55
for operating systems run under VM/370 12-13
spooling devices, dedicating to virtual
machines, using DEDICATE control statement 44 stage I
for OS/VS system generation under VM/370 execution in CMS virtual machine 122
execution in OS/VS virtual machine
123
input preparation 121-122
processing in CMS virtual machine
121
stage II
for as/vs system qeneration under VM/370 execution 124
input preparation 123
processing 123
standard label cylinders, DOS/VS virtual
machine, to access system residence volume
83-84
starter system
for as/vs system generation under VM/370 loading/restoring 119-120 volume initialization 117-118 STFIRST option OPTION control statement
permits user to issue SET STBYPASS nnnnnK command 41
shadow table bypass note for V=R users (5148::1E1) 34
storage levels in a VM/310 system, printing
dumps for virtual storage operating
systems 5
storage size, specifying, for VS1 virtual
machine 109 string switch, VM/310 alternate path
support for 19-20 SVC interruptions
handling under VM/370 41
handling under VM/370 42 SVS switched lines, defining for multiple
access-virtual machine 29 SYSRES (§ee-system residence volume) System Extensions Program product, for VM/370, performance additions
(description) 36-31
system generation as/iS; VM/370) system programs, developing and testing
f using OS/VS virtual machine 137
system residence volume
T
for DOS/VS virtual machine
accessing 82-84
sharing between machines 72,83
for OS/VS virtual machine
accessing 126-121
sharing between machines 109 tape devices, summary of VM/310 reserve/release effect on 22-23
T-disks, defining and using for virtual
machines 17-18
teleprocessing lines, accessing, by VM/310 virtual machine 55 temporary disk space, obtaining for virtual
mach ines 18
terminals
dial-up, supporting with multiple-access
virtual machine 29
local, using with multiple-access
virtual machine 21
remote
used by multiple-access virtual
machine 21
using virtual TCU to control
(example) 30 supporting with both VM/310 and
multiple-access systems, how to connect
to 29
test system (TESTSYS) virtual machine,
directory entry example 49
testing
communications system, using
multiple-access virtual machines 29 VM/370 in a virtual machine 51-68
third level storage, definition 5
time-of-day clock, VM/370 virtual machine
restriction 54,62
Index 147