EMC Unity Battery Test

A 3 - cell Lithium - Ion Battery Backup Unit (BBU) is located within each Storage Processor (SP) enclosure. The battery is designed to power systems long enough to flush the SP cache contents to an internal mSATA device in the case of a power failure or in the case of SP removal from the Disk Processor Enclosure (DPE). Atleast one BBU is required to be operating normally for SP cache to remain enabled. Therefore, it is necessary for the administrators to keep constant vigil on the health of the BBUs round the clock. The EMC Unity Battery test helps administrators in this regard!

This test auto-discovers the battery backup unit of the target storage system and for each battery, reports the current health. Using this test, administrators may be alerted to batteries that failed/degraded and replace those batteries well before users identify any impact on the storage system.

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 battery of the target EMC Unity Storage system being monitored.

Configurable parameters for the test
Parameter Description

Test Period

How often should the test be executed.


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.


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 battery.


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


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

The detailed diagnosis of this measure lists the owner of the storage processor, the slot, the health of the battery and the model of the storage system.