The monitoring task collects monitored data during an online monitoring cycle, edits it, and enters it in the central buffer when the online monitoring cycle is completed.
From the central buffer, each SM2 user task transfers the data into its own buffer and enters it in output forms called reports.
These monitored data reports can then either be output at regular intervals throughout the output cycle (automatic output mode), or can be requested individually by the user (controlled mode). See section “Statements for controlling reports” in chapter "Statements for nonprivileged users".
In addition, SM2 information screens are available, some in the administration facility only and others in the analysis subinterval and the administration facility. Instead of monitored data, these contain information on the monitoring process and on the status of SM2. The following information screens can be output at the request of the user:
MEASUREMENT STATUS
USER MEASURED OBJECTS
DEFINED PARAMETER
ACTIVE PARAMETER
STATUS TABLE
SELECTED HOSTS
SM2 reports
The monitored data is broken down into factually related groups and entered in various reports. The following reports may be output without the SM2 administrator having to activate an optional monitoring program.
Report | Meaning |
ACF report | Overview of activation control of system task management |
ACTIVITY report | Overview of the overall system load |
CATEGORY QUEUE report | Overview of the queue occupancy of all categories |
CATEGORY WSET report | Overview of the working sets of all categories |
CHANNEL report | Overview of the current channel occupancy. |
CPU report | Overview of CPU utilization for the various CPUs |
DEVICE DISK report | Overview of the activity of disk devices |
DEVICE TAPE report | Overview of the activity of tape devices |
DEVICE TD report | Overview of the activity of communication devices |
GLOBAL report | Overview of host-specific monitored data on important system activities |
MEMORY report | Overview of main memory load and virtual address space |
PCS report | Overview of PCS (Performance Control Subsystem) activity (used only if PCS is installed) |
SHARED PUBSET report | Overview of the activity of disk devices that belong to shared pubsets |
The following reports can only be output if the SM2 administrator has activated the corresponding optional monitoring program beforehand or authorized the appropriate user monitoring operations (MODIFY-USER-ADMISSION):
Report | Meaning |
BCAM CONNECTION report | Overview of bucket-specific time statistics and information on data sent and received |
BCAM MEMORY report | Overview of the maximum size, the threshold value from which BCAM issues warnings on the console, and the current size of the resident memory for data transfer. |
CATEGORY report | Overview of the consumption statistics of all categories |
CHANNEL report | Overview of the current channel occupancy. |
CMS report | Overview of the activities of the catalog management system (CMS) |
DAB report | Overview of the activities of the disk access buffer function (for a more detailed overview, see the DAB-CACHE report) |
DISK FILE report | Overview of the file activities of selected disk devices |
DLM report | Overview of the activities of the Distributed Lock Manager |
FILE report | Overview of the access values of files previously designated |
ISAM report | Overview of ISAM buffer management performance |
ISAM FILE report | Overview of the monitored data for selected files in ISAM pools |
MSCF report | Overview of the monitored data of the MSCF subsystem |
NSM report | Overview of host-specific monitoring values of the Distributed Lock Manager |
OPENFT report | Overview of the load values for one openFT instance |
PERIODIC TASK report | Overview of the most important utilization data of all tasks: privileged users receive information on all tasks, while nonprivileged users receive information relating only to those tasks under their own user IDs |
PFA CACHE report | Overview of the use of caches under User PFA |
POSIX report | Output of the monitoring data of the POSIX subsystem |
PUBSET report | Output of the occupancy of imported SF pubsets or volume sets |
RESPONSETIME report | Overview of the response time behavior throughout the system |
SESAM SQL report | Overview of data of the SESAM/SQL database system |
SVC report | Overview of the number of SVCs called |
TCP/IP report | Overview of the volume of data transmitted per IP address and port number |
TLM report | Overview of the Task Lock Manager calls (for privileged users only) |
UDS SQL report | Overview of data of the UDS/SQL database system |
UTM report | Overview of the consumption statistics for UTM applications and detailed values for the individual applications in the UTM APPLICATION report |
VM report | Overview of the values of guest systems of a VM2000 system |
VM CPU POOL report | Overview of the monitored data for CPU pools |
VM GROUP report | Overview of the values of VM groups |
SM2 information screens
The information screens are special in that they contain no monitored data, but provide information on the monitoring run and on the SM2 status. These screens are only output if explicitly requested by the user.
The first two screens listed are available in both the analysis subinterval and the administration facility. The others are only available to privileged users in the administration facility.
Screen | Information |
MEASUREMENT STATUS | Overview of all defined and active monitoring programs |
USER MEASURED OBJECTS | Overview of user-monitored objects |
DEFINED PARAMETER | Overview of the monitoring parameters and monitored objects defined for the individual monitoring programs |
ACTIVE PARAMETER | Output of the monitoring parameters and monitoring objects valid for the active monitoring programs |
STATUS TABLE | Status of the SM2 system tasks and of the subsystems used by SM2 |
SELECTED HOSTS | Overview of the hosts selected using the SELECT-HOSTS tatement |
Displaying follow-up screens to information screens
Entry | Meaning |
'+' or key [K3] or [DUE] | Page forward |
'-' or key [K1] | Page backward (if you page backward from the first page, the first page is output again) |
'--' | Page back to the first page |
'END' | Terminate output of follow-on screens |
All other entries have the same effect as +
.
The scroll commands can also be used to output the information screens of various hosts.
The header line of each screen contains global information, namely:
CYCLE | Duration of the (online) monitoring cycle in seconds, i.e. period after which the collected values are available for output |
SAMPLES | Number of samples taken within the (online) monitoring cycle |
These values are output if they are relevant to the current screen.
The host name is output in the top left-hand corner.
The date and time are output in the top right-hand corner of the screen. In the case of monitored data reports, this is the point at which the last (online) monitoring cycle was terminated. For all other screens, it is the current time when the screen is output.
In the screens which concern the host network (GLOBAL, NSM, SHARED-PUBSET), the header line displays the data of the first host listed in the report or of the first selected host.If the list of selected hosts contains the local host, this host is always the first one in the list. The remaining hosts appear in the order in which they were specified by the user in the SELECT-HOSTS statement.
Representation of values in SM2 output screens
The string ***** or blanks are output in place of a value if no value is available.
The string <<<<< is output if computation is not possible. The string >digit digit digit ... is output if the value does not fit into the available space.
Terminal emulations on the PC
In the case of terminal emulations on t he PC (e.g. MT9750), the character set “International” must be set in the keyboard configuration in order to output the delimiter “|”.
Output sequence
Report name | Identifiers | |||
GLOBAL | N | O | ||
NSM | N | O | M | |
SHARED PUBSET | N | O | ||
ACTIVITY | ||||
MEMORY | ||||
CHANNEL | O | M | ||
DEVICE DISK | O | M 1 | ||
PERIODIC TASK | O | M | ||
PRIVILEGED FILE | O | M | ||
USER FILE | O | P | ||
RESPONSETIME | M | |||
ACF | ||||
CATEGORIE QUEUE | ||||
CATEGORIE WSET | ||||
PCS | ||||
DAB | O | M | ||
DAB CACHE | F | O | M | |
CMS | O | M | ||
UTM | O | M | ||
UTM APPLICATION | F | O | M | |
PRIVILEGED ISAM | M | |||
USER ISAM | P | |||
VM2000 | O | M | ||
TLM | M | |||
CPU | O | |||
SVC | M | |||
PFA CACHE | O | M | ||
POSIX | M | |||
CATEGORY | M | |||
MSCF | M | |||
DEVICE TD | O | |||
DLM | M | |||
TCP IP | O | M | ||
BCAM CONNECTION | O | M | ||
DISK FILE | O | M | ||
DEVICE TAPE | O | |||
PUBSET | O | M | ||
VM CPU POOL | O | M | ||
ISAM FILE | M | |||
VM GROUP | O | M | ||
BCAM MEMORY | M | |||
SESAM SQL | O | M | ||
UDS SQL | O | M | ||
OPENFT | O | M |
N: | Network report |
F: | Follow-up screen requested by means of a special statement |
O: | Report containing an overflow screen for further monitored objects |
M: | Monitoring program must be activated |
P: | User-specific monitoring program must be permitted for the nonprivileged user |
1 | The associated SAMPLING-DEVICE monitoring program is started when the SM2 subsystem is started. |
This sequence is maintained even if the user has suppressed output of some reports. The suppressed records are simply skipped without any time being lost. The same applies to output in controlled mode.
The reports of a given monitoring cycle can be requested in the above sequence. The data of the next monitoring cycle is output only after the last record of the preceding cycle has been output.
The reports are listed in alphabetical order in the following description.