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Within this section, an IP address appears in first place; this address is that of the flexVDI Manager we are connecting to.

If you click on its title, two tree branches with elements of the Virtual Data Center managed by the flexVDI Manager will be shown. These elements are:

  • Hosts
  • Pools

Host

Here you will see a list of the Hosts controlled by the flexVDI Manager you are connected to.

Each of the Hosts that are running should have an green circle with a white arrow inside in its icon, meaning that its status is "Running". If the Host is not active, its icon will show a crossed out red circle .

In the tree we can see on which Host flexVDI Manager is running. Remember that it is a virtual machine, so it runs on a Host.

When one of the Hosts in the left area is selected, information about it is shown in the right area. This information is divided into four tabs.

Host:  Host info tab

Displays complete information about resources available to the Host. Hosts provide CPU and RAM resources used by the Guests to run.

Host: Pools tab

Displays information about the selected Host resources assigned to each of the Pools.

A Pool is a set of CPU and RAM resources, required to the Hosts and made available to the Guests associated to it.

 

Host: Guests tab

This shows the Guests running on the selected Host and the amount of resources allocated by them.

 

Host: Network tab

Shows the network interfaces available to the selected Host.

  • Physical interfaces.
  • Bridge interfaces.
  • Bonding interfaces.
  • VLAN interfaces.

Pools

A tree showing the Pools in the Data Center is shown. The image in the bottom right corner in each Pool icon shows its state.

When one of these Pools is selected, detailed information about it is shown in the right area of the main window:

Pool: Pool info tab

It is a summary of the resources of the selected Pool.

The graphs on the right show the used and available resources for creating and executing Guests handled by the Pool:

  • Required: the amount of resources (CPU / RAM) assigned to the Pool, that the Pool requires to the Hosts.
  • Present: the current amount of resources available to the Pool. It may be less than the Required value, for instance if one of the Host is off for maintenance.  
  • In use / Free shows the amount of resources that Are being used by the Guests in the Pool, and the amount that is still available. The total amount is equal to "Present".

The resources that are assigned to a Pool, can be used by the Guests in that Pool and are not available to Guests in other Pools.


Priority: Indicates the preference that a Pool has for acquiring resources when there are not enough of them for fulfilling the needs of every Pool. Thus, Pools with priority = 1 will be the first to receive resources, and only when all Priority 1 Pools have obtained all their resources, Priority 2 Pools with  will get resources.


"CPU block size" / "RAM block size" Resource reservation unit used by the Host Pool.

The Pool in the shown image, reserves resources from the Hosts in blocks formed by 1 CPU and 2GB of RAM.

The purpose of these values is to ensure that Pools reserve Host resources for the Guests in an adequate proportion. This will prevent, for instance, that a Pool reserves a large number of CPUs but a small amount of RAM in a Host. The RAM would limit the amount Guests that could run in the Pool, rendering the reserved CPUs unusable by the Pool which has reserved them.

These resource reservations are made:

  • Initially when the Pool is created or the flexVDI Manager starts.
  • Automatically when the amount of available resources changes. For instance on the event of failure or shutdown of one of the Hosts. High priority Pools may receive resources that are removed from Pools with a lower priority.
  • By explicit request of an administrator clicking on "Rebalance resources" from the context menu of a Pool.

Pool: Guest tab Resources

Detailed information about the resources used by each Guest running on the Pool.

Pool: Host tab Resources

Information about the amount and state of the resources in each Host.

Guests

If you click on any of the Pools that appear in the tree on the left you will see the Guests housed on it.

If the Guest is running, a green circle icon with a white arrow inside is displayed. If the Guest is stopped it will display a red circle with a white box inside. If it is paused, the icon will be a blue circle with two vertical bars.

Clicking on each Guest, information about it is shown in the right area of the main window.

Guest: Guest info tab

Information about Guest resources, status, and virtual devices attached to it.

Guest: Guest storage tab

Information about the virtual storage devices of a Guest. There are three types of storage objects we will see later, shown in the three columns of the image.

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