April 1, 1981
The format of the class A and E MONITOR command is:
r MONitoc fOiSPlav ENable
INTerval STArt STOP CLOSE AUTOdisk
TIME
LIMIT SEEKS r , ISPOQ11 I TAPE t
L .J PERForm
1 RESPonse SCHedule USER INSTsim
DAStap SEEKs SYSprof r ., nnnnn nn I MINI L J
r I SPOOL [To userid] (BUFFS n] I ITAPE raddr I I I I CPTRACE
L
r
.,2 ISPOOL I ITAPE I ICPTRACE I L {
FROM FOR ALL NONE n .J hl. ml to
hh.mm
r ., I NOSTOP I ISTOP , I SAMPLE I L .J r , I !lODE too } I I 1600 I I 6250 I L J
{
INclude EXclude DELete
DISplay
raddr raddr •••• }
raddr raddr •••• [ BUFFS l ., I I I nll I I I .J lSelect one or more of the classes subject to the cestrictions below. 2See operand description for defaults. L-- 112 IBM VM/3 7 0 System Programmer's Guide

. . DISPLAY 12E22bl ,TAPE 1 IALL 1 ENABLE L J displays the status of the applicable VM/370 Monitor variables
and the status of the internal trace table. SPOOL is the
default operand. Regardless of the SPOOL, TAPE, or ALL
operand selected, each class of MONITOR CALL and its current
enabled/disabled state is listed on the If SPOOL is requested, the automatic monitoring specifications
are listed on the terminal, including whether or not automatic
monitoring has been requested, its start and stop times, the
number of monitor buffers to be used, the userid of the
virtual machine to receive the spool file, the spool
record limit and class, and which monitor classes are
enabled.
file
to be
If automatic monitoring is already in progress, the spool file
number is given together with the number of monitor buffer
records already written to it.
If the TAPE option is requested, only the status of monitor
classes and the CPTRACE table is indicated.
If ALL is specified, a combination of SPOOL and TAPE responses
are shown on the terminal. PERForm RESPonse SCHedule USER INSTsim DAStap SEEKs SYSprof enables the specified classes of MONITOR successful completion of this command creates a
control register 8. The function of each class
in the section "Implemented Classes."
CALL. Each
new mask for
is described
The effect of the MONITOR ENABLE command depends upon whether
data collection is active or inactive when the command is
issued. If data collection is active (MONITOR START has been
issued), the new mask is moved directly into control register
8, replacing the previous mask, and the new mask takes effect
immediately. Collection then continues with the classes just
entered. If data collection is not active at the time the
command is issued, the mask is saved until the MONITOR START command is issued. If a MONITOR START command is issued
without a preceding MONITOR ENABLE, the SYSMON class
specifications are used. Any mask stays in effect only until
the next MONITOR STOP command. Part 2. Control program (CP) 113