Base Management (Basic OS Monitoring)

As part of the add server feature command, with the basemanagement and agentip keywords, you provide support for base management and you provide credentials to access the monitored server's operating system through ssh with the agentssh keyword. See To Add the Base Management Feature for additional details. This procedure is important for basic OS health monitoring but not for monitoring hardware health or network reachability.

Adding the base management feature using the add server feature command, with the basemanagement keyword provides support for base management, and enables monitoring by default. After that, monitoring can be disabled and enabled by use of the set server command. See Enabling and Disabling Monitoring for more information.

The base management feature provides basic OS monitoring, but does not provide support for monitoring of thresholds. For the monitoring of thresholds, the full OS monitoring feature must be added. See Full OS Monitoring (With Thresholds) for details.

With the base management feature, statistics related to the central processor unit (CPU) are provided, as is data related to memory, swap usage, and file systems. For the purposes of monitoring, system load data, memory usage, and swap usage data can be categorized as follows:

• System usage, including system idle times

• System load, expressed as the average number of queued processes over 1, 5, and 15 minutes

• Memory usage and memory free statistics, in megabytes and as percentages

• Physical load statistics

• Swap space used and space available, in megabytes and as percentages. (Individual swap partitions cannot be monitored)

• File system used and space available, as percentages

For more information about these monitored attributes, see Table 6–2.

The base management feature also provides support for remote command execution. See Issuing Remote Commands on Servers and Server Groups for details. In addition, the base management feature provides support for OS updates. see Chapter 5, Managing Packages, Patches, and RPMs, in Sun N1 System Manager 1.3 Operating System Provisioning Guide for information about OS updates.