|
Measures reported by vSphere/ESX(i)GuestStatusTest
This test enables administrators to determine how many guests have registered with the vSphere/ESX(i) server, and how many of these are currently running. In addition, the test also indicates whether any guests have migrated to or from the virtual server. VMware VMotion® technology, unique to VMware, leverages the complete virtualization of servers, storage and networking to migrate an entire running virtual machine instantaneously from a failing/underperforming server to a healthy one, to ensure high availability of the virtual machine. The entire state of a virtual machine is encapsulated by a set of files stored on shared storage, and the VMware VMFS® cluster file system allows both the source and the target vSphere/ESX(i) Server to access these virtual machine files concurrently. The active memory and precise execution state of a virtual machine can then be rapidly transmitted over a high speed network. Since the network is also virtualized by vSphere/ESX(i) Server, the virtual machine retains its network identity and connections, ensuring a seamless migration process.
| Measurement |
Description |
Measurement
Unit |
Interpretation |
| Registered_guests |
The total number of virtual machines that have been registered with the vSphere/ESX(i) server |
Number |
|
| Guests_powered_on |
The number of guests that are currently powered on |
Number |
To know which are the guests that are powered on, use the detailed diagnosis capability of this measure (if enabled). |
| Guests_with_users |
The number of powered on guests with users logged in |
Number |
To know which guests the users have logged into, use the detailed diagnosis capability of this measure (if enabled). Note that this measure will not be available for a VMware vSphere/ESX(i) (i) server. |
| Guests_without_users |
The number of powered on guests without any users logged in |
Number |
To know which guests the users have logged into, use the detailed diagnosis capability of this measure (if enabled). Note that this measure will not be available for a VMware vSphere/ESX(i) (i) server. |
| Added_guests |
The number of guests that were newly added to the vSphere/ESX(i) server during this measurement period |
Number |
The detailed diagnosis of these measures, if enabled, lists the virtual machines that were migrated by VMotion to or from (as the case may be) the vSphere/ESX(i) server. |
| Removed_guests |
The number of guests that were newly removed from the vSphere/ESX(i) server during this measurement period |
Number |
| Template_vms |
The number of template VMs on the vSphere/ESX(i) server |
Number |
A template is a "golden" copy of a virtual machine (VM) organized by folders and managed with permissions. They are useful because they act as a protected version of a model VM which can be used to create new VMs. As a template is the original and perfect image of a particular VM, it cannot be powered on or run. |
| Orphaned_vms |
The number of VMs that are in the orphaned state on the vSphere/ESX(i) server |
Number |
An orphan virtual machine is one that exists in the vCenter database but is no longer present on the ESX Server host. A virtual machine also shows as orphaned if it exists on a different ESX Server host than the ESX Server host expected by vCenter. A virtual machine can become orphaned, in any of the following situations:
- After a VMotion or VMware DRS Migration;
- After a VMware HA host failure occurs or after the ESX Server host comes out of maintenance mode;
- If you delete a virtual machine outside of vCenter - say, through the VMware Management Interface while VC is down, or through the Virtual Infrastructure (VI) client directly connected to an ESX server host;
- If vCenter is restarted while a migration is in progress; this is a temporary situation though;
- If you schedule too many virtual machines to be relocated at the same time;
|
| Other_vms |
The number of VMs which are in disconnected or invalid or inaccessible state on the vSphere/ESXi server |
Number |
|
|