HP Insight Management Agents 9.20 Managing ProLiant Servers with Linux HOW TO Whitepaper

Table 6 Sub agents of the Server Agent (continued)
DescriptionSub-agent
Monitor. The System Health Agent executable is
/opt/hp/hp-snmp-agents/server/bin/cmahealthd.
The System Rack Agent gathers data for the Rack MIB for p Class and also monitors the rack
health through system management. The data collected includes:
System Rack Agent
(cmarackd)
• Onboard Administrator
• Onboard Administrator IP address
• Enclosure serial number, enclosure product ID, enclosure firmware revision
The System Rack Agent executable is /opt/hp/hp-snmp-agents/server/bin/cmarackd.
For more information on threshold configurations, see the HP Systems Insight Manager Technical
Reference Guide. This guide can be found on the HP website at http://www.hp.com/go/hpsim/
docs
Storage Agent
The Storage Agent consists of IDA, IDE, SCSI, SAS, and FCA subagents, and Event Agent
components. The Storage Agent collects information from the Fibre Channel, drive array, SCSI,
SAS, and IDE subsystems at periodic intervals, makes the collected data available to the SNMP
agent, and provides SNMP alerts.
Each Storage Data Collection Agent gathers and saves Storage MIB data to files in the Storage
Data Registry. The Data Collection Agents periodically update MIB data at configurable poll
intervals.
The agent responsible for managing the selected MIB data item performs SNMP set commands.
Data Collection Agents generate SNMP trap commands.
The storage data registry (/var/spool/compaq/hpasm/registry) consists of standard Linux
directories and associated files. Each file in the data registry is a logical object that contains “n”
related data items.
The -p poll_time command-line argument, which can be used with the Storage Agents, specifies
the number of seconds to wait between data collection intervals. The minimum allowed value is 1
second, and the default value is 15 seconds.
Increasing the agent poll_time setting improves system performance but decreases the data
collection rate. Conversely, decreasing the agent poll_time setting increases the data collection
rate but might decrease system performance.
A Storage Agent consists of the sub-agent components listed in Table 7: “Subagents of the Storage
Agent”.
Table 7 Subagents of the Storage Agent
DescriptionSub-agent
The IDA Agent gathers data for the IDA MIB. The data includes:IDA Agent (cmaided)
• IDA controller information
• IDA accelerator information
• IDA logical drive information
• IDA physical drive information
12 Software architecture