Parallels RAS Reference Architecture
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  • Introduction
    • Parallels RAS release history
    • What is Parallels RAS
    • Advantages of Parallels RAS Solution
    • Parallels RAS Components
    • Understanding Deployment Scenario Diagrams
    • Parallels RAS Basic Concepts
  • Deployment Scenarios
    • General Considerations
    • Parallels RAS Deployment Scenarios
      • Single Farm with One RD Session Host
      • Single Farm with Two RD Session Hosts
      • Single Farm with RD Session Host Auto Scaling
      • Single Farm with VDI Hosts
      • Single Farm with Remote PC Hosts
      • Single Farm with Mixed Hosts
      • Single Farm with Public & Private RAS Secure Gateways
      • Single Farm with Dual RAS Secure Gateways
      • High Availability with Multiple Gateways
      • High Availability with Single-hop or Double-hop DMZ
        • Single-hop DMZ (two firewalls)
        • Double-hop DMZ (three firewalls)
      • RAS on Microsoft Azure
      • Azure Virtual Desktop integration
      • Mixed Scenarios
        • Multi-Site Scenario
        • Business Continuity and Disaster Recovery
        • Secure Setup with Double-hop DMZ and Second-Level Authentication
        • SAML SSO authentication
      • Multi-Tenant Architecture
      • Management Portal
    • Client Manager and Desktop Replacement
  • Capacity Considerations
  • Deploying Parallels RAS Reporting
    • One Site with Multiple RD Session Hosts
    • Multiple Sites with Multiple RD Session Hosts and Remote SQL Server
  • Port Reference and SSL Certificates
    • Port reference
      • Parallels Client
      • Web browsers
      • HALB
      • RAS Secure Gateway
      • RAS Connection Broker
      • RAS Console
      • SSRS
      • RAS Reporting
      • RAS Web Administration Service (REST/Management Portal)
      • RAS PowerShell
      • RAS Provider Agent
      • RAS Enrollment Server
      • RAS RD Session Host Agent
      • RAS Guest Agent
      • RAS Remote PC Agent
      • Tenant Broker
      • Active Directory and Domain Services ports
    • SSL Certificates
      • Using a Third-Party Trusted Certificate Authority
      • Using Enterprise Certificate Authority
      • Assign a Certificate to a Gateway
      • Parallels Client Configuration
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  1. Deployment Scenarios
  2. Parallels RAS Deployment Scenarios

Single Farm with RD Session Host Auto Scaling

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Last updated 9 months ago

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This scenario can be implemented by an organization that needs to use single image management for RD Session Hosts and dynamic resource allocation for published applications and desktops.

For high availability, HALB Virtual Server (VS) should have a secondary HALB appliance, additional RAS Connection Broker and RAS Secure Gateway should be deployed. HALB Virtual Server (VS) is a virtual representation of the HALB appliances.

Installation Notes

The components on the primary RAS Connection Broker are installed using the Parallels RAS installer (standard installation).

A new type of RAS Template adds support for an RD Session Host running in a guest VM where both the RAS Guest Agent and RD Session Host Agent are push-installed in the VM from the RAS Console.

An RD Session Host pool is assigned a RAS Template and is then used for publishing of applications and desktops.

RD Session Host creation, maintenance and deletion is done via the RAS Template.

An RD Session Host pool assigns RD Session Hosts on demand providing more resources on the workload increase and unassigns RD Session Hosts on the workload decrease.

HALB Virtual Server (VS) is configured with two HALB appliances.