Examples
Example 1:
You find that a system with higher I/O capability is locking out
slower systems from accessing the communications data set. After
checking the value of the interval, currently set at 15 seconds, you
decide the interval should be 20 seconds. To make this change, you
enter:
SETSMS INTERVAL(020)
Example 2:
Assume that on system MVS3 you want to set the SMS trace table
size to 16KB, deselect all trace options, then select three options.
To make these changes, enter:
SETSMS DESELECT(ALL),TRACE(ON),SIZE(16K)
SETSMS SELECT(ACSINT,CDSC,CONFC)
To determine the current tracing status on MVS3, enter:
DISPLAY SMS,TRACE
The following display would show the trace table size of 16KB and
the ON/OFF status of each of the individual trace entries. In this
example only the ACS, CDS, and CONFC options would show the ON status.
10.24.04 DISPLAY SMS
IGD002I 11:08:57 DISPLAY SMS 056
TRACE = ON SIZE = 128K TYPE = ERROR
JOBNAME = * ASID = *
TRACING EVENTS:
MODULE = ON SMSSJF = ON SMSSSI = ON ACSINT = ON
OPCMD = ON CONFC = ON CDSC = ON CONFS = ON
MSG = ON ERR = ON CONFR = ON CONFA = ON
ACSPRO = ON IDAX = ON DISP = ON CATG = ON
VOLREF = ON SCHEDP = ON SCHEDS = ON VTOCL = ONVTOCD = ON
VTOCR = ON VTOCC = ON VTOCA = ON
RCD = ON DCF = ON DPN = ON TVR = ON
DSTACK = ON UAFF = ON
VOLSELMSG = (OFF,0) TYPE = ERROR JOBNAME = *
ASID = * STEPNAME = *
DSNAME = *
Example 3:
You can use the SETSMS command to turn on tracing for SMS data
set stacking and other events:
SETSMS SELECT(MODULE,DSTACK,VTOCC)
Example 4:
You can use the SETSMS command to change the activity
keypoint value.
SETSMS AKP(300)
This results in the following output:
SETSMS AKP(300)
IGW467I DFSMS TVS ACTIVITY KEY POINT PARMLIB VALUE 959
CHANGED ON SYSTEM: SYSTEM1
OLD VALUE: 200
NEW VALUE: 300
Example 5:
You can use the SETSMS command to change the quiesce
timeout value.
SETSMS QTIMEOUT(500)
This results in the following output:
SETSMS QTIMEOUT(500)
IGW467I DFSMS TVS QTIMEOUT PARMLIB VALUE 962
CHANGED ON SYSTEM: SYSTEM1
OLD VALUE: 400 1
NEW VALUE: 500 1
Example 6:
You can use the SETSMS command to change the MAXLOCKS
maximum and increment values.
SETSMS MAXLOCKS(200,100)
This results in the following output:
SETSMS MAXLOCKS(200,100)
IGW467I DFSMS TVS MAXLOCKS PARMLIB VALUE 965
CHANGED ON SYSTEM: SYSTEM1
OLD VALUE: 100 50 1
NEW VALUE: 200 100 1
These MAXLOCKS values are for example only. In practice, you might want to set the minimum and increment values higher to avoid generating too many messages.
Example 7:
You can use the SETSMS command to control how to
issue the volume selection analysis messages. Assume you want to issue
detailed analysis messages for all volumes on failure allocations,
enter:
SETSMS VOLSELMSG(ON,ALL) TYPE(ERROR)
After the processing
completes, check the parameter settings, enter:DISPLAY SMS,VOLSELMSG
This
results the following report:IGD002I 08:14:24 DISPLAY SMS 488
VOLSELMSG = (ON,ALL) TYPE = ERROR JOBNAME = *
ASID = * STEPNAME = *
DSNAME = *
TRACE = ON SIZE = 128K TYPE = ERROR
JOBNAME = * ASID = *
Note that because the TYPE parameter
value is shared by SMS trace facility and volume selection analysis
messages, changing it for volume selection analysis messages will
therefore affect SMS tracing.