errors, DASD, during spooling 1-148 examples, of virtual machine dispatching
and scheduling 1-130 executable modules pageable 1-81
resident 1-80 executing, the pageable control program
1-78
execution
favored 1-135
of scheduled users 1-215
expanded virtual machine assist 1-37,1-409
defined 1-420 and disabling of 1-421
instruction summary of 1-420 Extended Control-Program Support (ECPS) ECPS)
extended virtual external interrupt 1-76
extended-identification code 1-50 external interrupt 1-76
F
external console interrupt 1-18
interval timer 1-18
multi-processor 1-178
reflection 1-184 TOD clock comparator 1-18
failure, system, recovery 1-149
fast redispatch 1-134
favored execution option 1-30,1-135
features System/370 recovery 1-151
control registers used by MCH 1-152
ECC validity checking 1-152
processor retry 1-151 V!/VS Handshaking 1-43
fetch storage protection 1-78
first-level storage 1-117 format CCi, 3270 remote 1-98
spool data 1-137
spool files 1-137
formatting, recording area 1-163
free storage
management 1-120,1-207
page frame allocation 1-122
function codes for DIAGNOSE instructions 1-407 G
graphic I/O processing, local 1-193
H
hard error, recovery 1-117
hardware assist 1-37,1-409 combinations of 1-412 by SET command 1-412
control program (CP) assist 1-409 expanded virtual machine assist 1-409 functions, turning off 1-418
relationships 1-412
summary of control 1-410 virtual interval timer assist 1-409 HIO operations, CP 1-196
I
initialization 1-14 CP 1-122
procedures 1-208 spool file 1-224 system 1-122,1-209
for RMS 1-150 virtual machine 1-211
input
processing
for a virtual machine 1-217
real spool files 1-143
virtual spool files 1-141
input device, real, spooling to 1-219
input files, virtual machine, closing of
1-217
input/output I/O) instruction simulation for virtual machine 1-191
integrated channels, error analysis 1-159
interface, error recording, virtual
machines 1-161
interrupt
channel check, processing of 1-222
external 1-76
extended virtual 1-76
handling 1-46 I/O 1-73,1-90
handling 1-6
virtual 1-90 machine check 1-73
processing of 1-221
processing 1-183,1-196
local graphic 1-193 ftOBITOR 1-185 prograll 1-188 program 1-46
reflection
clock 1-184
external 1-184
in a virtual machine 1-192 1-430 IBft V8/370 System Logic and Problem Determination Guide

secondary, processor for 3270 1-201 start/stop terminal, processing of
1-197 SiC 1-74 tiaer 1-76
3704/3705, handling of 1-199
interval timer 1-38
inter-virtual machine communication 1-225 I/O alternate path 1-92
attached processor 1-179
coaponent states 1-89
control blocks
real 1-15,1-83
relationship 1-15,1-16
virtual 1-16
errors, unit record 1-148
for DASD 1-190 function DASD 1-56
general 1-58
general operation, initiated via DIAGNOSE 1-191
instruction simulation, for virtual
machine 1-191
interrupts 1-73,1-90 virtual 1--90 management 1-6,1-83
overhead in CP, reducing 1-27
paging privileged instructions 1-46,1-85
processing, local graphic 1-193
program for binary snychronous lines and
remote 3270s 1-99
program for binary synchronous lines and remote 3270s disable a line 1-100 enable a line 1-99
read initial 1-102 read interruption 1-103 read repeat 1-102 write continue 1-101 write ENQ 1-101 write initial 1-100 write reset 1-101 reconfiguration 1-125
requests
scheduling 1-91
virtual 1-84
virtual selector channel 1-86
reserve/release 1-94
scheduler, paging 1-206 scheduling 1-195
scheduling for CP and the virtual aachine 1-190 supervisor 1-83 3270, request handler 1-201 lOB indicators, sumaary 1-166 IOBLOK, queuing 1-95 IPL of the virtual aachine 1-211 ISA! read sequence
L
locating 1-194
validating 1-194 label-to-module cross-reference, CP 1-300 loading
discontiguous saved segments 1-67
nucleus 1-208 3800 named system into virtual storage 1-70 local graphic
interrupt processing 1-193 I/O processing 1-193
locate ISA! read sequence 1-194
locked pages option 1-28
locking 1-173
global system lock 1-173
page of free storage 1-203 user-defined locks 1-174 V!BLOK lock 1-173 LOGREC area ! getting starting address 1-62
reading 1-62
machine check handler !CB (machine
check handler» machine check interrupt, processing of
1-73,1-221
machine states, virtual aachine 1-128
maintenance, virtual timer 1-81
management
allocation 1-105 commands, for spool files 1-147
free storage 1-17,1-120,1-201 I/O 1-83
of pages 1-203 real spooling 1-142
real storage 1-138
spool buffer 1-138
storage DASD 1-111
real 1-106 virtual 1-105 virtual spooling 1-139
virtual storage 1-138
Index 1-431