Paqe of GC20-1821-3 As Updated April 1, 1981 by TNL GN25-0840 E ECMODE option
directory entry example, specifyinq for VM/370 virtual machine 49
specifying for system/370 operating
systems 40 using for operating systems run under VM/370 6.1 ECPS: VM/370 (extended control-program
support)
effect on DOS/VS accounting 73-74
virtual machine paging performance 5
virtual machine performance 33-34
virtual machine performance 34. 5-3 4. 6
performance option, specifying for
virtual machines 36
enhanced 3270 support (.2148-XX8) VM/370 Basic System Extensions program
product)
enhanced 3270 support (.2748:.XE1) VM/370 System Extensions proqram product)
error recording
by VM/370 for virtual machine operating systems
41
for virtual machine operating systems 42
for operating systems under VM/370 4
when SCP makes dynamic transition to
native mode 136.1
when using dedicated processor for MVS V=R virtual machine 138.2
error records, for operating systems under VM/370, accessing and recording 4
error recovery, virtual machine, provided
by operatinq system in 16
error recovery procedures, for
model-dependent processors and channels,
effect on SCPs run under VM/370 12-13 EXEC procedure, for alternating between CMS and DOS/VS 99-100 extended control mode, ECMODE option,
specifying for system/370 operating
systems 40 extended control-proqram support ECPS: VM/370) F
favored execution, performance option,
specifying for virtual machines 36 FDP (Field Developed Program), used under VM/370 (reference) 3
Field Developed program (FDP), used under VM/370 (reference) 3
file names, selecting, for DOS/VS minidisks
73
first level storage, definition 5
flip-flop technique alternating
technigue)
format/allocate program (CP) allocating temporary disk space, for
virtual machines 17-18
for VM/370 virtual machine, how to
format and allocate space on CP disks 5.3-54 formatting, CP disks, for VM/370 virtual
machine 53
formatting error recording cylinders, with
SRF devices, for hardcopy reports 4
four-channel switch, VM/370 alternate path
support for 19-20 full screen support (.2148:.!!!!) VM/370 Basic System Extensions program product)
full screen support (.2148:.!1!1) VM/370 System Extensions program product)
G
generating operating systems, under VM/370, advantages of 38
generation procedures, under VM/370, for
other operating systems 38
H
handshaking handshaking)
high-water mark, defining for shadow tables
( 574 8- X ll) 34. 1-3 4 • 2
I
IBCDASDI program, initializing T-disk
space, for files 18
INDICATE command, to measure VM/370 performance 37
initializing disks and minidisks, for DOS/VS virtual machines 70 Installed User Program (IUP), used under VM/370 (reference) 3
interactive problem control system IPCS) interactive virtual machine, operatinq
systems supported under VM/370 2
interval timer, using REALTIMER option, to
allow updating under VM/370 7 I/O devices AUTOLOG facility, to automatically
initiate for virtual machine operating
systems 46-48
using those unsupported by VM/370 4 I/O interruptions, virtual machine,
processed by operating system in 16 IOCS modules, adding to DOS/VS virtual
machine 80-81 IPCS (interactive problem control system)
dump processinq, for VM/370 virtual
machine 54 VM/370 component, brief description of
2
142 IBM VM/370 Operating Systems in a virtual Machine

Page of GC20-1821-3 As Updated April 1, 1981 by TNt GN25-0840 IPL DOS/VS virtual machine
from a card reader 89-90 from a console 86-89
for VM/370 virtual machine 54-56
example 62
loading systems automatically, using IPt control statement 43
IPL control statement
unigue considerations, for virtual
machine operating systems 43
using AUTOLOG facility, to specify AUTOLOG command 46 ISAM option, using for operating systems run
under VM/370 7
using under VM/370 41 IUP (Installed User Program), used under VM/370 (reference) 3
J
job accounting (§ee accounting)
L
LINK control statement
accessing minidisk with other users,
subject to virtual reserve/release
processing 21
accessinq system residence volume, for OS/VS virtual machine 126
example, defining VM/370 virtual machine
51
linkage editor, proqram execution, under Dos/is arid-oeMS/DOS 73
linking
to access CMS system residence volume, by VM/370 virtual machine 52.1
to eMS disks, by VM/370 virtual machine
(example) 57
loadinq systems automatically, by
specifying IPL control statement 43
locked pages, performance option,
specifying for virtual machines 36
logical data sharing, definition of 17 M magnetic tape drives
dedicating to virtual machines, by using DEDICATE control statement 43
defining, by using SPECIAL control
statement 45 Storaqe System (§ee 3850) MDISK control statement
defining system residence volume, for OS/VS virtual machine 126
examples, defininq VM/370 virtual
machine 51-52
specifying virtual reserve/release
support 21
measuring
performance factors
to evaluate virtual machine
performance 33-37
to evaluate virtual machine
performance 34.5-31 MFT virtual machine; VM/370) ISAM, using under VM/370 41 MFT virtual machine, directory entry
example 124
minidisk by VM/370 virtual machine 55
definition of 17
file-name, selecting for DOS/VS virtual
machine 73
for virtual machine, defining 17
initializinq, for DOS/VS virtual machine 70 reserve/release support, not used for
paging and spooling 21
restriction, cannot be on dedicated
channels 17
shared, VM/370 reserve/release support
for 21
sharing data between users 17
summary of VM/370 reserve/release effect
on 22-23
temporary, defining and using for
virtual machine 17-18
virtual reserve/release support,
protecting with (caution) 21
virtual VM/370 reserve/release support,
protecting with 21 MONITOR command, to measure VM/370 performance 37
monitoring system activity
collecting shadow table statistics
for SET STMULTI CSEG command 34.4
for SET STMULTI n command 34 .. 3-34.4
for SET STMULTI USEG command 34.4
to measure VM/370 performance 37 MSS (Mass Storage System) 3850)
multiple consoles, specifying for virtual
mach ine 14-15
multiple programming operating systems al§Q-DOS/VS; OS/VS) special considerations for 9-32
multiple shadow table support, description
of (5748-XE1) 33
multiple-access virtual machine
defining and using 26-31
defining virtual addresses on real Teo 30 directory entry, how to specify virtual TCUs 45 directory entry example 28,49 for testing a communications system 29
operating systems supported under VM/370 2
performance considerations 31
using local terminals 27
using remote terminals 27
using under VM/370 3
Index 143