VM Status – Xen Test
This test enables administrators to determine how many VMs have registered with the XenServer, and how many of these are currently running. In addition, the test also indicates whether any VMs have migrated to or from the virtual server. XenMotion is a feature using which virtual machines can be moved from server to server within a Citrix XenServer resource pool without service interruption, making zero-downtime server maintenance possible, and enabling administrators to move resource-hungry running applications to take advantage of available compute power. In short, the VM Status - Xen test monitors the effectiveness of XenMotion.
Target of the test : A XenServer host
Agent deploying the test : An internal/remote agent
Outputs of the test : One set of results for the XenServer being monitored
Configurable parameters for the test
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Measurements made by the test
Measurement | Description | Measurement Unit | Interpretation |
---|---|---|---|
Added VMs |
Indicates the number of VMs that were newly added to the XenServer during this measurement period. |
Number |
The detailed diagnosis of these measures, if enabled, lists the virtual machines that were migrated by XenMotion to or from (as the case may be) the XenServer. |
Removed VMs |
Indicates the number of VMs that were newly removed from the XenServer during this measurement period. |
Number |
|
Registered VMs |
Indicates the total number of virtual machines that have been registered with the XenServer. |
Number |
|
Running VMs |
Indicates the total number of virtual machines that are currently running. |
Number |
|
Halted VMs |
Indicates the number of VMs that were stopped. |
Number |
|
Suspended VMs |
Indicates the total number of virtual machines that have been suspended. |
Number |
You can suspend a XenVM, saving its state to a file. This allows you to shut down the physical XenServer host and later, after rebooting it, return the XenVM to its original running state. |
VMs with users |
Indicates the number of powered on VMs with users logged in. |
Number |
To know which VMs the users have logged into, use the detailed diagnosis capability of this measure (if enabled). |
VMs without users |
Indicates the number of powered on VMs without any users logged in. |
Number |
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The detailed diagnosis of the Registered VMs measures, if enabled, lists the virtual machines that are currently registered with the XenServer (see Figure 1).
Figure 1 : The detailed diagnosis of the Registered VMs measure
The detailed diagnosis of the Halted VMs measure, if enabled, provides the IP addresses of the VMs that stopped running, the VM names, and the operating system on which the VM is executing (see Figure 2).
Figure 2 : The detailed diagnosis of the Halted VMs measure
The detailed diagnosis of the Running VMs measure, if enabled, provides details pertaining to VMs that are currently running.
Figure 3 : The detailed diagnosis of the Running VMs measure