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LGDFINT 179
locking
considerations in a CICS environment 81
log block
definition 10
how they are processed by System Logger 19
log record
definition 9
log streams
attributes of CF-based ones 23
attributes that can be dynamically updated 54
characteristics 185
CICS log stream sizing 170
controlling duplexing of interim storage data 33
controlling offload processing 39, 51
converting log stream from DASDONLY to CF-based 56
DASD-only
description 44
deciding between DASD-only and CF-based ones 24
deciding between DASD-only or CF-based ones 22
defining a model log stream 40, 51
defining in System Logger policy 32
definition 8
deleting 57
deleting data from the log stream 62, 136
deletion 255
deletion with active internal connection 255
dynamic definition by CICS 136
how many to have in a structure 25, 32
loss of data 249
MAXBUFSIZE 186
model log streams
naming required by CICS 137
overriding default CICS names 137
relation to JOURNALMODEL in CICS 137
use by CICS 136
offload data set names 32, 45
operator initiated rebuild 256
placement 185
planning for peer recovery 25
rebuild after a connectivity failure 259
rebuild after a failure 258
rebuilding 256
single point of failure considerations 33–34, 54, 66–67, 70
specifying retention periods for log data 38, 49
staging data set names 32, 45
temporary write errors 71
types used by CICS 139
using a model log stream 40, 52
which ones should reside in the same structure 25–26
log tail management 139
logger address space
starting 252
stopping 252
LOGGERDUPLEX
Transactional VSAM log stream 95
LOGR CDS
definition 9
directory extent full condition 252
DSEXTENT formatting keyword 13
format level 13–14
displaying 14
format level considerations 14, 54
formatting considerations 12
LSR formatting keyword 12
LSTRR formatting keyword 12
printing contents for problem determination 77
procedure to moving to new one 14
requirements 12
switch of couple data sets 253
LOGREC 208
criticality of data 206
how to prevent a loss of data 211
log stream description 206
log stream naming convention 206
log stream sizing 207
logger definitions 208
migration considerations 207
parmlib definition 207
performance considerations 211
security definitions 209
LOGSNUM 275
APPC/MVS log stream 203
OPERLOG log stream 214
specifying maximum number of log streams in a structure 32
Transactional VSAM log stream 94
LOGSTREAMID 84
LOWOFFLOAD
APPC/MVS log stream 203
CICS log stream 154
LOGREC log stream 208
OPERLOG log stream 214
setting the threshold 274
Transactional VSAM log stream 100
WebSphere for z/OS log stream 240
LS_DATACLAS
APPC/MVS log stream 203
CICS log stream 155
OPERLOG log stream 215
Transactional VSAM log stream 96, 100
LS_SIZE
APPC/MVS log stream 203
CICS log stream 155
LOGREC log stream 209
OPERLOG log stream 215
Transactional VSAM log stream 96, 100
WebSphere for z/OS log stream 240
LSR IXCL1DSU keyword 12
LSTRR IXCL1DSU keyword 12
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