Use the Edit System Resource Allocation dialog box to change allocations for memory and CPU resources.

Before you begin

Required privilege: Host > Configuration > System Resource Settings

Procedure

  1. Browse to the host in the vSphere Web Client navigator.
  2. Click the Manage tab.
  3. Click Settings, and under System click System Resource Allocation.
  4. Select whether to use Simple or Advanced resource allocation.

    Option

    Description

    Simple

    The CPU and Memory resource settings are applied to the host as a unit.

    Advanced

    Allows you to edit the CPU and Memory resources allocated to specific host functions or processes. Select a specific system resource pool to edit.

  5. Click Edit.
  6. Edit the CPU Resources.

    Option

    Description

    Shares

    CPU shares for this resource pool with respect to the parent’s total. Sibling resource pools share resources according to their relative share values bounded by the reservation and limit. Select Low, Normal, or High, which specify share values respectively in a 1:2:4 ratio. Select Custom to give each virtual machine a specific number of shares, which expresses a proportional weight.

    Reservation

    Guaranteed CPU allocation for this resource pool. Select Expandableto specify that more than the specified reservation is allocated if resources are available in a parent.

    Limit

    Upper limit for this resource pool’s CPU allocation. Select Unlimited to specify no upper limit.

  7. Edit the Memory Resources.

    Option

    Description

    Shares

    Memory shares for this resource pool with respect to the parent’s total. Sibling resource pools share resources according to their relative share values bounded by the reservation and limit. Select Low, Normal, or High, which specify share values respectively in a 1:2:4 ratio. Select Custom to give each virtual machine a specific number of shares, which expresses a proportional weight.

    Reservation

    Guaranteed memory allocation for this resource pool. Select Expandableto specify that more than the specified reservation is allocated if resources are available in a parent.

    Limit

    Upper limit for this resource pool’s memory allocation. Select Unlimited to specify no upper limit.

  8. Click OK.