vSphere Host Status Test

For each vSphere host that is managed by the vCenter server attached to the vCloud Director Cell being monitored, this test reports the following:

  • Whether/not the host is available;
  • Whether the host is disabled/enabled;
  • Whether the host is ready or not;
  • Whether 'Host Spanning' is enabled on the host or not;

In addition, the test also indicates the CPU/memory capacity and usage of each host, so that you can make a fair assessment of the amount of resources that is available to the vCloud Director Cell for pooling.

Target of the test : A vCloud Director Cell

Agent deploying the test : An internal/remote agent

Outputs of the test : One set of results for each vSphere host that is managed by the vCenter server attached to the vCloud Director Cell 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 being configured.

Port

Specify the port at which the specified host listens in the Port text box. By default, this is NULL.

vCloud Director User

Specify the name of the user with Administrator access to the target vCloud Director Cell.

vCloud Director Pass

Enter the password of the specified vCloud Director User.

Confirm password

Confirm the password by retyping it here.

SSL

By default, the vCloud Director Cell is SSL-enabled. Accordingly, the SSL flag is set to Yes by default.

Measurements made by the test
Measurement Description Measurement Unit Interpretation

Is available?

Indicates whether/not this vSphere host is currently available on the vCenter server.

 

This measure reports the value Yes if the vSphere host is available and the value No if it is unavailable.

The numeric values for the above mentioned states are represented in the table below:

State Numeric Value
Yes 1
No 0

Note:

By default, this measure reports the above-mentioned States while indicating whether/not the vSphere host is available. However, in the graph of this measure, states will be represented using their corresponding numeric equivalents only.

Is busy?

Indicates whether/not this vSphere host is currently busy.

 

This measure reports the value Yes if the vSphere host is busy currently, and the value No if the vSphere host is free.

The numeric values for the above mentioned states are represented in the table below:

State Numeric Value
Yes 1
No 0

Note:

By default, this measure reports the above-mentioned States while indicating whether/not the vSphere host is busy. However, in the graph of this measure, states will be represented using their corresponding numeric equivalents only.

Enabled?

Indicates whether/not this vSphere host is enabled.

 

You can disable a host to prevent vApps from starting up on the host. Virtual machines that are already running on the host are not affected.

This measure reports the value Yes if the vSphere host is currently enabled, and the value No if the vSphere host is disabled.

The numeric values for the above mentioned states are represented in the table below:

State Numeric Value
Yes 1
No 0

Note:

By default, this measure reports the above-mentioned States while indicating whether/not the vSphere host is enabled. However, in the graph of this measure, states will be represented using their corresponding numeric equivalents only.

Host Spanning Enabled?

Indicates whether/not host spanning is currently enabled on this host.

 

Host Spanning is a feature that enables the virtual machines in a configuration that uses fencing or virtual networks to be deployed on different ESX/ESXi hosts. When you deploy a configuration that uses Host Spanning, some of the virtual machines can get deployed to one ESX/ESXi host and some of the virtual machines can get deployed to a different host.

This measure reports the value Yes if host spanning is current enabled on the vSphere host, and the value No if it is not.

The numeric values for the above mentioned states are represented in the table below:

State Numeric Value
Yes 1
No 0

Note:

By default, this measure reports the above-mentioned States while indicating whether/not the host spanning is enabled/disabled. However, in the graph of this measure, states will be represented using their corresponding numeric equivalents only.

Is Ready?

Indicates whether/not this vSphere host is currently ready.

 

 

This measure reports the value Yes if the vSphere host is currently ready, and the value No if it is not.

The numeric values for the above mentioned states are represented in the table below:

State Numeric Value
Yes 1
No 0

Note:

By default, this measure reports the above-mentioned States while indicating whether/not the vSphere host is ready. However, in the graph of this measure, states will be represented using their corresponding numeric equivalents only.

Total CPU

Indicates the total CPU capacity of this host.

Mhz

 

CPU cycles

Indicates the number of CPU cycles consumed by all processes that were executing on this host during the last measurement period.

Number

A high value is indicative of excessive CPU usage.

CPU packages

Indicates the of CPU packages present in this vSphere host.

Number

 

Total Memory

Indicates the total memory capacity of this host.

MB

 

Used Memory

Indicates the amount of memory that is currently utilized by this host.

MB

A sudden or steady increase in the value of this measure is indicative of excessive memory usage by the host.