EMC Unity Fan Test

Each Storage Processor has three fan modules above it to dissipate heat away from the storage system. For the system to stay operational, atleast two of the three fans on each SP must be active. If either Storage Processor has two or more fans inactive, the system will save cache contents and shut down automatically. In large production environments, administrators may not desire frequent shut downs of their mission critical systems. Therefore, it is necessary for the administrators to frequently monitor the hardware components of the storage system and ensure that a hardware failure does not contribute to the shut down of the storage system. The EMC Unity Fan test helps administrators in this regard!

This test reports the current health of each cooling fan in the target storage system. By closely monitoring the health of the cooling fans, fans that are running abnormally and fans that have failed can be identified and replaced at a faster pace!

Target of the test : An EMC Unity Storage System

Agent deploying the test : A remote agent

Outputs of the test : One set of results for each fan 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 storage system for which this test is to be configured.

UniSphere CLI Path

The eG agent uses the command-line utility, UEMCli.exe, which is part of the UniSphere Management Suite, to communicate with and monitor the storage device. To enable the eG agent to invoke the CLI, configure the full path to the CLI here.

Username and Password

Provide the credentials of a user possessing 'monitor' role to access the storage system in the Username and Password text boxes.

Confirm Password

Confirm the Password by retyping it in the Confirm Password text box.

Timeout

Specify the duration (in seconds) beyond which this test should time out in the Timeout text box. The default is 300 seconds.

Detailed Diagnosis

To make diagnosis more efficient and accurate, the eG Enterprise suite embeds an optional detailed diagnostic capability. With this capability, the eG agents can be configured to run detailed, more elaborate tests as and when specific problems are detected. To enable the detailed diagnosis capability of this test for a particular server, choose the On option. To disable the capability, click on the Off option.

The option to selectively enable/disable the detailed diagnosis capability will be available only if the following conditions are fulfilled:

  • The eG manager license should allow the detailed diagnosis capability
  • Both the normal and abnormal frequencies configured for the detailed diagnosis measures should not be 0.
Measurements made by the test
Measurement Description Measurement Unit Interpretation

Health state

Indicates the current health of this cooling fan.

 

The values reported by this measure and its numeric equivalents are mentioned in the table below:

Measure value Numeric Value
Normal 0
Attention 1
Unknown 2
Degraded/Warning 3
Minor failure 4
Major failure 5
Critical failure 6
Non-recoverable error 7

Note:

By default, this measure reports the Measure Values listed in the table above to indicate the current health of this cooling fan. The graph of this measure however is represented using the numeric equivalents only - 0 to 7.

The detailed diagnosis of this measure lists the ID of the fan, the slot, health, serial number and model of the fan.