Node Fan Test

To maintain optimal temperature, each node comprises of multiple fans. If the fans are not running within the permissible range, the temperature of the nodes may soar/drop causing permanent damage to the components of the nodes. To avoid such heavy duty damage to the node, it is necessary to monitor the speed of the fans at regular intervals. This is where the Node Fan test helps! This test auto discovers the fans in the each node and reports the speed at which each fan operates. This way, administrators can instantly detect the fan speed, initiate remedial measures if any irregularities are detected so that damage to the components of the node can be prevented proactively.

Target of the test : An EMC Isilon Storage System

Agent deploying the test : A remote agent

Outputs of the test : One set of results for each node:fan pair on the target storage system being monitored.

Configurable parameters for the test
Parameter Description

Test Period

How often should the test be executed.

Host

The IP address of the host for which this test is to be configured.

Port

The port at which the host listens. By default, this will be NULL.

Timeout

Specify the time duration (in seconds) beyond which this test should time out in the Timeout text box. The default is 10 seconds.

Use SUDO

By default, this parameter is set to No. This indicates that, by default, the eG agent will not require any special permissions to execute the commands. However, in some highly secure environments, this command cannot be executed directly as the eG agent install user is different from the root user who has the privileges to run all commands on the target storage system. In such cases, create a sudo user using the steps discussed in the Pre-requisites for Monitoring the EMC Isilon Storage System. Credentials of such a user should be specified in the Username and Password text boxes in the COMPONENTS page.

If the sudo user is Set the Use Sudo parameter to Yes. This will enable the eG agent install user to execute the commands.

Measurements made by the test
Measurement Description Measurement Unit Interpretation

Speed

Indicates the current speed of this fan.

RPM

The speed of the fan should be well within operable limit. A sudden/significant rise/fall in the value of this measure could be a cause for concern which warrants an investigation.