5.3.2 Business groups
Performance Management manages hosts in business groups.
- Organization of this subsection
(1) About business groups
Business groups are the units used in Performance Management for grouping managed hosts. A user to whom a business group has been assigned can reference the information collected by the monitoring agent that monitors the hosts in that business group.
The following figure shows an example relationship between monitored services and business groups.
|
|
![[Figure]](GRAPHICS/ZU050800.GIF)
In this example, the Web server, application program server, and database server that are monitored by Performance Management's monitoring agent are defined to belong to one business group. This business group has been defined in ITSLM's monitored service configuration information. When monitoring of the services begins in ITSLM, ITSLM - UR collects the results of monitoring real accesses to the services and ITSLM - Manager collects data including the OS performance on each host that belongs to the business group. Because ITSLM - Manager manages all this information, the status of all monitored services can be monitored.
For example, if ITSLM is to monitor a work timesheet management service, ITSLM - UR collects monitoring results including the average response times of real accesses from service users to the work timesheet management service. ITSLM - Manager collects performance data as the monitoring results of one business group, including the CPU and memory usage of individual hosts, that is, the Web server that accepts requests to the work timesheet management service, the application program server on which the service is actually running, and the database server that manages the data. All this information can be monitored in ITSLM windows.
- Reference note
-
When there is a change to the number of monitored services in a business group that has been defined in the monitored service configuration information, there is no need to change the configuration information in the ITSLM windows.
(2) Concept of business group creation
In Performance Management, a managed host cannot belong to multiple business groups. In ITSLM, you might want to specify the same host, such as the database host, in multiple monitored services' configuration information.
In such a case, define a managed host that might be included in multiple services' configuration information as an independent business group, as shown in the following example.
|
|
![[Figure]](GRAPHICS/ZU050900.GIF)
In this example, monitored services A and B share the same host for the database server. This is made possible by defining the database server to be shared as business group 3 separately from business groups 1 and 2. As a result, the database server can be specified in two monitored services' configuration information
(3) Elements used when ITSLM is linked with Performance Management
The following figure shows the relationship among elements used when ITSLM is linked with Performance Management and ITSLM's monitored services.
|
|
![[Figure]](GRAPHICS/ZU051000.GIF)
The following table explains the Performance Management elements.
|
No. |
Element |
Description |
|---|---|---|
|
1 |
JP1 resource group (Performance Management business group) |
A group of logical resources in JP1/Base. In Performance Management, one JP1 resource group corresponds to one business group. |
|
2 |
Business group |
A group of one or more managed hosts in Performance Management. One business group can belong to only one JP1 resource group, not to multiple JP1 resource groups. The relationship between business groups and monitored services managed in ITSLM is multiple business groups to multiple monitored services. |
|
3 |
Managed host |
Host monitored by Performance Management. One managed host belongs to one business group. |
|
4 |
Monitoring agent |
Agent program that exists in each server and each middleware running on a managed host and that monitors the corresponding server or middleware. A monitoring agent collects more than one set of performance data. For PFM - RM, a virtual monitoring agent exists on each managed host, but its entity is located on the remote host. |
(4) Supplementary information
-
For a business group containing a host that is shared among multiple JP1 users, set up a separate JP1 resource group from any JP1 resource group for ITSLM's service group. If the JP1 resource group for the service group is set up for this business group and a monitored service is added to that service group, all the sharing users can monitor that added service.
-
When monitoring a service running on a virtual host, ITSLM does not retain the relationship between the virtual host and the physical host on which the virtual host is running. These hosts are monitored as separate elements of the monitored service.
The following shows an example.
Figure 5‒15: Monitoring by ITSLM of virtual hosts and physical host, which are Performance Management's monitored targets ![[Figure]](GRAPHICS/ZU051100.GIF)
In this example, business group 1 is defined as the configuration information for monitored service A. Physical host 1 and virtual hosts 1 through 3 that are running on physical host 1 are defined for business group 1. ITSLM treats physical host 1 and virtual hosts 1 through 3 as independent elements of monitored service A without having to recognize that virtual hosts 1 through 3 are running on physical host 1.