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The table below describes to which Tiers the metric sets are relevant.
Table 4-1 Metric 1 Metric set dependency
| Tier / Metrics |
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Trending Load
Trending
OS + + + + +
Web Client + + + + + +
J2EE + + + + + +
DB2 + +
WebSphere MQ + + + +
Tuxedo + + + + + +
Tier/Metrics Set Status Performance Load Service Performance
Trending Load
Trending
Oracle + + + + + +
SQL Server + + + + + +
EMC Storage + + + +
SAP + + + + + +
Oracle Applications + + + + + +
Other + + + +
Microsoft .NET + + + +
Sybase Replication Server +
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| Set | Status | Performance | Load | Service | Performance Trending | Load Trending |
|---|---|---|---|---|---|---|
| OS |  | | |  | | |
| Web Client | | | | | | |
| J2EE | | | | | | |
| DB2 | | | | | | |
| WebSphere MQ | | | | | | |
| Tuxedo | | | | | | |
| Oracle | | | | | | |
| SQL Server | | | | | | |
| EMC Storage | | | | | | |
| SAP | | | | | | |
| Oracle Applications | | | | | | |
| Other | | | | | | |
| Microsoft .NET | | | | | | |
| Sybase Replication Server | | | | | | |
| Info |
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The Performance Trending and Load Trending metric sets include metrics that are sampled by Report Manager, that is, each metric alerts to one or more Report Manager exception reports. For more information, see the Report Manager User’s Guide. Maintenance metrics are available in the Service set |
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The Performance set helps find performance bottlenecks in your system. It includes the following metrics that measure the level of performance currently achieved by the system:
- General
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- Behavior. Measures the resources consumption of the instance to detect times when the instance consumes a higher level of resources than is normal (according to definition), for example when the instance level memory usage is high.
- Top
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- Activities. Reports on resource consumption of activities to allow the detection of activities that are high resource consumers, for example, Oracle programs using a high percentage of Oracle resources. The alert is generated on an activity level, that is, as a percentage of the resources the activity used out of the resources that the instance consumed. For example, when an SQL statement in the Oracle Tier is using 20% of the total resources consumed by the Oracle instance.
- Top
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- Activators. Report on resource consumption of activators to allow the detection of activators that are high resource consumers, for example, Oracle users consuming a high percentage of Oracle resources. The alert is generated on an activator level (such as, Users, Locales, and IPs). The Top Activators are displayed as a percentage of the resources the activator consumed out of the resources that the Oracle instance consumed.
- Long I/O
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- waits. Reports on I/O waits to allow the detection of objects that have a long access time and are causing activities to have a long I/O wait time while accessing them. The alert is generated on an I/O object level, that is, as a percentage of the I/O wait time the I/O file spent out of the total I/O wait time that the Oracle instance spent.
- Internal performance
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- metrics. Reports on internal components and procedures of the instance. These metrics are Tier-specific, for example, for an Oracle database, a report on SGA utilization, on Oracle sessions that are waiting for a lock, and so on.
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The Load set helps to identify any increase of load on the system, which can cause a decrease in the performance. It includes the following metrics that measure the load on the system:
- Frequent
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- Activities. Reports on activities that have a high number of executions compared to the total number of executions in the instance. This might help you point out abnormal activities, wrong use of the system, and so on.
- Frequent
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- Activators. Reports on originators that have a high number of executions compared to the total number of executions in the instance. This might help you point out abnormal originators; for example, SAP users running many transactions.
- High I/O
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- activity. Reports on I/O objects that have high access hits compared to the total number of accesses in the instance. This might help you point out objects that were accessed many times compared to all other objects in the system.
- Internal load
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- metrics. Indicates the internal load. This might help you point out times when instance resources are exceeded. For example, when the number of logged-in users approaches, reaches, or
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- transgresses the allowed maximum, and so on.
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The Service set includes SLA metrics. The SLA metrics indicates the actual service level compared to the predefined SLAs. These metrics help to identify a decrease in response time.
| Info |
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Alerts samples the data for the Service metrics from Insight and not from the “Precise for” products (except for |
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SAP and Web Tiers, which retrieve their Service data from their “Precise for” products and not from Insight). |
The following SLA metrics are included:
- Overall SLA
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- Compliance. Reports on the total instance performance not conforming to the defined SLA.
- SLA Breaching
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- Activities. Reports on activities that exceeded their defined SLA, for example, programs taking longer than defined.
- SLA Breaching
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- Activators. Reports on activators that get bad response times, for example, users suffering from SLA breaches.
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