2.5 Recommended Limits

The limits mentioned in this section are recommendations based on the performance testing done at Novell or at customer sites. They are not hard-limits. The recommendations are approximations. In highly dynamic systems, it is a good practice to build in buffers and allow room for growth.

2.5.1 Collector Manager Limits

Unless otherwise specified, Collector Manager limits assume 4 CPU cores at 2.2 GHz each, 4 GB of RAM, running on SLES 11.

Table 2-4 Collector Manager Performance Numbers

Attribute

Limit

Comments

Maximum number of Collector Managers

20

This limit assumes each Collector Manager is running at low EPS (e.g, less than 100 EPS). The limit decreases as the events per second increase.

Maximum number of Connectors (fully utilized) on a single Collector Manager

1 per CPU core, with at least 1 CPU core reserved for the operating system and other processing

A fully utilized Connector is one that is running at the highest EPS possible for that type of Connector.

Maximum number of Collectors (fully utilized) on a single Collector Manager

1 per CPU core, with at least 1 CPU core reserved for the operating system and other processing

A fully utilized Collector is one that is running at the highest EPS possible for that type of Collector.

Maximum number of devices on a single Collector Manager

2000

The limit of the Sentinel Rapid Deployment server is also 2000, so if 2000 devices are on a single Collector Manager, then the limit of devices for the overall Sentinel system has been reached with that single Collector Manager.

Maximum number of devices on the Sentinel Rapid Deployment server

2000

The limit of devices on the Sentinel Rapid Deployment server is 2000.

2.5.2 Reports Limits

Table 2-5 Reports Performance Numbers

Attribute

Limit

Comments

Maximum number of saved reports

200

This limit might increase or decrease depending on the size of the reports and disk space available on the server that is not being used by the rest of the system.

Maximum number of reports running simultaneously

3

The limit assumes that the server is not already highly utilized performing data collection or other tasks.