Controlling SAPOSCOL from the R/3 System 
Controlling SAPOSCOL from the R/3 System
Purpose
You can use the R/3 System to control and monitor saposcol with the CCMS operating system monitor.
From the R/3 initial screen, choose Tools
® CCMS, Control/Monitoring ® Performance Menu, Operating system ® Local ® Activity ® OS Collector.From the OS Monitor, you can:
The profile parameters must be set correctly. Otherwise the data displayed will not be meaningful.
Process Flow
Detail analysis menu
In the OS Monitor main menu, choose snapshot values from the last 24 hours and access the data on the performance database.
Available functions include:
The Detail analysis menu offers the following options:
Analyze the operating system
Snapshot analysis / Previous hours
Use the options in this area to display data from the shared memory on the CPU, memory, swap space, disk, LAN and file system. Analysis possibilities available include:
If there is no valid data available for a particular hour, that hour is not displayed.
Operating system log
This function lists part of the operating system log. The request is sent to
saposcol , which transfers part of the operating system log to the file /usr/sap/tmp/os_sys.log . A response to this request is returned to the ABAP program that called it.Performance database
Compare recent days / Compare all servers
The background job
SAP_COLLECTOR_FOR_PERFORMANCE regularly collects data from saposcol 's shared memory and stores it in a performance database. You can use this data to compare a server's load over the last 30 days with the load of other servers. Only the most important data is actually stored in the database. Calculations based on that data are done on the fly. Mean values from the hour are summarized again and averaged out for the time when the load is greatest (10 AM to 1 PM, and 2 PM to 4 PM).Additional functions
System Configuration
Defined values for operating system kernel parameters are displayed as they appear in the configuration files together with the values that are currently active. These active values will differ from the predefined values if the system was booted using a different kernel parameter.
Parameter Changes
Here, you can view all changes made to the system parameters.
LAN Check by Ping
A
ping operation over a range of servers gives you the following information:With a multiple ping operation, you can also obtain results for every packet that was sent.
The R/3 ping utility is an enhancement of the standard UNIX ping command. The R/3 ping utility determines the time taken by a network packet to travel between the home and a target system. This time is a good indicator of network traffic efficiency. It takes into account the physical network distance and the type of the network technology used.
The utility reports the number of presentation servers, application servers, and database servers that belong to the R/3 System. The administrator can select the servers of interest and execute the ping operation. It is possible to perform a ping operation on the target systems once or multiple times, using different ping packet sizes.
See also:
Controlling SAPOSCOL from the Operating System Reducing CPU Load Collector Home Directory, Paths and Profile Parameters Collector Status Displaying Collector Data Interpreting the Data Operating System Monitor