Desktop Pool Scaling Policies

Functions

Efficient utilization of desktop pool resources: time-based reuse and auto scaling

• N:M desktop solution: N users share M (a fixed number) desktops. Resources are reused through automatic scheduling.
• Dynamic binding: When a user logs in, an idle desktop will be assigned to them. When disconnecting from the desktop, the user is bound to the desktop within the retention period. The user will be automatically unbound from the desktop after the retention period expires, and the desktop status will be reset. Idle desktops will be bound to users with the retention period, and will be automatically deleted after the retention period expires.
• Reset: After a user is disconnected and unbound from a desktop, the desktop is automatically restored to the initial status to avoid data residue.
• Advantages: The desktop idle rate and purchase frequency are reduced. In particular, this solution is suitable for temporary desktop usage, such as Internet cafes and computer classrooms.

When a user logs in through the client, a desktop in the desktop pool will be automatically assigned to the user. After the user disconnects from the desktop, the desktop can be retained for a period of time. After the retention period expires, the user is automatically unbound from the desktop and the desktop will be reset. This enables automatic desktop scheduling. Users can manage desktops in a pool in a unified manner. Auto scaling improves desktop utilization and reduces costs. Features:

• Dynamic pool: Desktops are randomly assigned and reset after being released. Images can be updated in batches.
• Static pool: Users are fixed and desktops can be manually reset. Images can be updated in batches.
• Auto scaling policies can be flexibly defined to tackle request bursts.
• Desktop specifications in a desktop pool can be adjusted in a unified manner.
• Desktop scaling policies in a desktop pool can be configured in a unified manner.
• Using the same image and security policy, all desktops provide a consistent configuration and user experience.

Scaling Policies

The number of desktops in a desktop pool changes dynamically. You can add multiple end users to a desktop pool and set the minimum number of elastic desktops in a desktop pool. When creating or modifying a desktop pool, you can configure a scaling policy and change the minimum number of elastic desktops. Then desktops will be automatically created or released according to the user connection status and the configured scaling policy.

For example, in a three-shift customer service call center, there are 50 customer service representatives in a shift and 50 desktops are purchased. With the scale-out policy, more desktops can be added to ensure that the additional personnel for each shift have desktops to use. When these newly added desktops are no longer needed, they can be released through the scale-in policy.

Yearly/Monthly:

If the billing mode is yearly/monthly, you need to set the initial number of purchased desktops (M ≥ 1). If you allow automatic desktop creation, set the maximum number of auto-created desktops. You can enable the scale-out policy to meet temporary additional requirements.

Dynamic pool:

• Enabling the scaling policy: Create M desktops, reserve Y idle desktops, set the maximum number of auto-created desktops to Max, and set the idle desktop retention period to H minutes. Then, desktops are automatically created according to the connection status of end users.
  • If reserved idle desktops are not used up, the number of desktops ranges from M to M + Y.
  • If reserved idle desktops are used up, new desktops will be automatically created. The number of desktops ranges from M to M + Max. When there are more than Y idle desktops, idle desktops can be released using the scale-in policy.

    

• Disabling the scaling policy:
  • If M desktops are created initially and no more desktops are created, the number of desktops is fixed to M.
  • If a desktop remains inactive for a period longer than the configured binding retention duration upon disconnection, the desktop will be reset.

    

Static pool:

• Enabling the scale-out policy: Create M desktops, reserve Y idle desktops, and set the maximum number of auto-created desktops to Max. Then, desktops are automatically created according to the connection status of end users.
  • If reserved idle desktops are not used up, the number of desktops ranges from M to M + Y.
  • If reserved idle desktops are used up, new desktops will be automatically created. The number of desktops ranges from M to M + Max.

    

• Disabling the scale-out policy: If M desktops are created initially and no more desktops are created, the number of desktops is fixed to M.

  

Desktop Assignment in a Desktop Pool

Desktops in a desktop pool are not permanently bound to users. You can add multiple users as needed. Desktops will be automatically assigned to users according to their connection status. The following tables show the assignment mechanisms for different billing modes and auto scaling policies:

Managing Scaling Policies

You can manage the scaling policies of created desktop pools. If the existing scaling policies are insufficient, you can modify them to meet your needs.

Modifying a scaling policy