EMC PowerVault ME Volume Status Test

A volume is a logical subdivision of a vdisk, and can be mapped to controller host ports for access by hosts. A mapped volume provides the storage for a file system partition you create with your operating system or third-party tools. The storage system presents only volumes, not vdisks, to hosts. A faulty or degraded volume therefore can deny hosts access to critical data stored in the storage system. If this is to be avoided, administrators will have to track changes in the state of the volumes and promptly capture the abnormal state of a volume. To achieve this, administrators can use the EMC PowerVault ME Volume Status test.

For each volume configured in the EMC PowerVault ME storage system, this test reports the current status of the volume, and thus enables administrators to identify those volumes that are in an abnormal state.

Target of the test : An EMC PowerVault ME storage system

Agent deploying the test : A remote agent

Outputs of the test : One set of results for each volume of the storage system being monitored

Configurable parameters for the test
Parameter Description

Test period

How often should the test be executed .


The host for which the test is to be configured. Since the storage device is managed using the IP address of its storage controller, the same will be displayed as host. In case of a dual-controller configuration, the IP address of the primary controller will be displayed here.


The port number at which the specified host listens. By default, this is NULL.

Additional Controller IP

By default, this test always connects to the Host to collect metrics. If the Host is unavailable, then the test will not be able to execute. This is because, the Additional Controller IP is set to none by default.

If the monitored storage device has two controllers, then you can configure the test to connect to an alternate controller, if the host is unreachable. For this purpose, specify the IP address of the alternate controller in the Additional Controller IP text box.

User and Password

In order to monitor a EMC PowerVault ME storage system, the eG agent has to be configured with the credentials of a user who has been assigned the Monitor role. Specify the login credentials of such a user in the User and Password text boxes. To know how to create such a user, refer to Pre-requisites for monitoring the EMC PowerVault ME storage system.

Confirm Password

Confirm the password by retyping it here.


The Management Controller of the EMC PowerVault ME storage system provides access for monitoring and management via the HTTP and HTTPS protocols for XML API request/response semantics. To enable the eG agent to access the management controller, invoke the XML API commands, and collect the required metrics, you need to specify the service port on the controller that listens for HTTP/HTTPS requests for XML API semantics. By default, this is port 80.


Specify the time duration for which this test should wait for a response from the storage system in the Timeout text box. By default, this is 60 seconds.


By default, EMC PowerVault ME system is not SSL-enabled. This is why, this flag is set to False by default. If it is SSL-enabled, then change this flag to True.

Detailed Diagnosis

To make diagnosis more efficient and accurate, the eG Enterprise 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


Indicates the overall health of this volume.


The values that this measure can report and their corresponding numeric values are tabulated below:

Measure Value Numeric Value
Fault 0
Degraded 1
OK 2
Unknown 3


By default, this measure reports the above-mentioned Measure Values while indicating the overall health of a volume. However, in the graph of this measure, volume health will be represented using the corresponding numeric equivalents only.

The detailed diagnosis of this measure if enabled, lists the name of the volume and the reason why a volume is in the state that it is in.