Clusters Test

This test reports key metrics pertaining to the resource availability and resource usage of the RHEV server clusters managed by the RHEV manager.

Target of the Test: A RHEV Manager

Agent running the test: A remote agent

Output of the test: One set of results for each cluster in each datacenter configured on the RHEV manager being monitored.

Configurable parameters for the test
Parameter Description

Test period

How often should the test be executed.

Host

The host for which the test is to be configured.

Port

The port at which the specified host listens. The default port is 8443.

RHEL MGR User and RHEL MGR Password

To pull out the desired metrics from the RHEV manager, this test has to be configured with the privileges of a user who has been assigned the RHEVMUser role. Specify the user name and password of this user in the RHEL MGR User and RHEL MGR Password text boxes, respectively.

Confirm Password

Confirm the RHEL MGR Password by retyping it here.

RHEL Manager Domain

Specify the domain to which the RHEV manager belongs. By default, internal is displayed here.

SSL

If the RHEV manager to which the eG agent should connect is SSL-enabled, then set this flag to Yes. If not, set it to No.

DD Frequency

Refers to the frequency with which detailed diagnosis measures are to be generated for this test. The default is 1:1. This indicates that, by default, detailed measures will be generated every time this test runs, and also every time the test detects a problem. You can modify this frequency, if you so desire. Also, if you intend to disable the detailed diagnosis capability for this test, you can do so by specifying none against DD frequency.

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
       

VMs powered on

Indicates the number of VMs that are currently powered on in this cluster.

Number

 

VMs powered off

Indicates the number of VMs that are currently powered off in this cluster.

Number

Use the detailed diagnosis of this measure to identify the powered off VMs in a cluster.

VMs suspended

Indicates the number of VMs in this cluster that are currently in a suspended state.

 

Number

 

Other VMs

Indicates the number of VMs in this cluster that are in an UNKNOWN state, are not responding, and are unassigned.

Number

Use the detailed diagnosis of this measure to know which VMs are in an UNKNOWN state, are not responding, and are unassigned.

Max memory overcommitment

Indicates the maximum percentage of memory this cluster is configured to over-commit.

Percent

Memory overcommitment, when configured at the cluster-level, allows the allocation of more virtual memory to the VMs in a cluster than the physical memory available to the hosts in the cluster.

 

Use thread as CPU

Indicates whether this cluster has been configured to treat host CPU threads as cores.

 

Clusters can be configured to treat CPU threads as cores for the purposes of virtual machine resource allocation and migration.

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

Measure Value

Numeric Value

Yes 1
No 0

Note:

By default, this measure reports the Measure Values listed in the table above to report the status of the ‘Use thread as CPU’ flag. In the graph of this measure however, this status is indicated using the numeric equivalents only.

Total hosts

Indicates the total number of hosts in this cluster.

Number