The Resource Allocation tab is available when you select a cluster from the inventory panel.

The Resource Allocation tab displays information about the CPU and memory resources in the cluster.

The following information about CPU resource allocation is shown.

CPU Resource Allocation

Field

Description

Total Capacity

Guaranteed CPU allocation, in megahertz (MHz), reserved for this object.

Reserved Capacity

Number of megahertz (MHz) of the reserved allocation that this object is using.

Available Capacity

Number of megahertz (MHz) not reserved.

The following information about memory resource allocation is shown.

Memory Resource Allocation

Field

Description

Total Capacity

Guaranteed memory allocation, in megabytes (MB), for this object.

Reserved Capacity

Number of megabytes (MB) of the reserved allocation that this object is using.

Available Capacity

Number of megabytes (MB) not reserved.

Note

Reservations for the root resource pool of a cluster that is enabled for VMware HA might be larger than the sum of the explicitly-used resources in the cluster. These reservations not only reflect the reservations for the running virtual machines and the hierarchically-contained (child) resource pools in the cluster, but also the reservations needed to support VMware HA failover. See the vSphere Availability Guide.

The Resource Allocation tab also displays a chart showing the resource pools and virtual machines in the DRS cluster with CPU, memory, or storage I/O resource usage information.

To view CPU or memory information, click the CPU button or Memory button, respectively.

CPU or Memory Usage Information

Field

Description

Name

Name of the object.

Reservation - MHz

Guaranteed minimum CPU allocation, in megahertz (MHz), reserved for this object.

Reservation - MB

Guaranteed minimum memory allocation, in megabytes (MB), for this object.

Limit - MHz

Maximum amount of CPU the object can use.

Limit - MB

Maximum amount of memory the object can use.

Shares

A relative metric for allocating CPU or memory capacity. The values Low, Normal, High, and Custom are compared to the sum of all shares of all virtual machines in the enclosing resource pool.

Shares Value

Actual value based on resource and object settings.

% Shares

Percentage of cluster resources assigned to this object.

Worst Case Allocation

The amount of (CPU or memory) resource that is allocated to the virtual machine based on user-configured resource allocation policies (for example, reservation, shares and limit), and with the assumption that all virtual machines in the cluster consume their full amount of allocated resources. The values for this field must be updated manually by pressing the F5 key.

Type

Type of reserved CPU or memory allocation, either Expandable or Fixed.

To view storage I/O information, click the Storage button.

Storage I/O Resource Usage Information

Field

Description

Name

Name of the object.

Disk

Name of the virtual machine's hard disk.

Datastore

Name of the datastore.

Limit - IOPS

Upper bound for storage resources that can be allocated to a virtual machine.

Shares

A relative metric for allocating storage I/O resources. The values Low, Normal, High, and Custom are compared to the sum of all shares of all virtual machines in the enclosing resource pool.

Shares Value

Actual value based on resource and object settings.

Datastore % Shares

Percentage of datastore resources assigned to this object.