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Set up a scale-out process server during disaster recovery of VMware VMs and physical servers with Azure Site Recovery | Microsoft Docs'
This article describes how to set up scale-out process server during disaster recovery of VMware VMs and physical servers.
ankitaduttaMSFT
azure-site-recovery
how-to
ankitadutta
09/11/2024

Scale with extra process servers

By default, when you're replicating VMware VMs or physical servers to Azure using Site Recovery, a process server is installed on the configuration server machine, and is used to coordinate data transfer between Site Recovery and your on-premises infrastructure. To increase capacity and scale out your replication deployment, you can add an extra standalone process servers. This article describes how to set up a scale-out process server.

Before you start

Capacity planning

Ensure to perform capacity planning for VMware replication. This helps you to identify how and when you should deploy extra process servers.

From 9.24 version, guidance is added during selection of process server for new replications. Process server is marked Healthy, Warning, and Critical based on certain criteria. To understand different scenarios that can influence state of process server, review the process server alerts.

Note

Use of a cloned Process Server component is not supported. Follow the steps in this article for each PS scale-out.

Sizing requirements

Verify the sizing requirements summarized in the table. In general, if you have to scale your deployment to more than 200 source machines, or you have a total daily churn rate of more than 2 TB, you need extra process servers to handle the traffic volume.

Additional process server Cache disk size Data change rate Protected machines
4 vCPUs (2 sockets * 2 cores @ 2.5 GHz), 8-GB memory 300 GB 250 GB or less Replicate 85 or less machines.
8 vCPUs (2 sockets * 4 cores @ 2.5 GHz), 12-GB memory 600 GB 250 GB to 1 TB Replicate between 85-150 machines.
12 vCPUs (2 sockets * 6 cores @ 2.5 GHz) 24-GB memory 1 TB 1 TB to 2 TB Replicate between 150-225 machines.

Where each protected source machine is configured with 3 disks of 100 GB each.

Prerequisites

The prerequisites for the additional process server are summarized in the following table.

[!INCLUDE site-recovery-configuration-server-requirements]

Download installation file

Download the installation file for the process server as follows:

  1. Sign in to the Azure portal, and browse to your Recovery Services Vault.

  2. Open Site Recovery Infrastructure > VMware and Physical Machines > Configuration Servers (under For VMware & Physical Machines).

  3. Select the configuration server to drill down into the server details. Then click + Process Server.

  4. In Add Process server > Choose where you want to deploy your process server, select Deploy a Scale-out Process Server on-premises.

    Add Servers Page

  5. Click Download the Microsoft Azure Site Recovery Unified Setup. This downloads the latest version of the installation file.

    [!WARNING] The process server installation version should be the same as, or earlier than, the configuration server version you have running. A simple way to ensure version compatibility is to use the same installer, that you most recently used to install or update your configuration server.

Install from the UI

Install as follows. After setting up the server, you migrate source machines to use it.

[!INCLUDE site-recovery-configuration-server-requirements]

Install from the command line

Install by running the following command:

UnifiedSetup.exe [/ServerMode <CS/PS>] [/InstallDrive <DriveLetter>] [/MySQLCredsFilePath <MySQL credentials file path>] [/VaultCredsFilePath <Vault credentials file path>] [/EnvType <VMware/NonVMware>] [/PSIP <IP address to be used for data transfer] [/CSIP <IP address of CS to be registered with>] [/PassphraseFilePath <Passphrase file path>]

Where command line parameters are as follows:

[!INCLUDE site-recovery-unified-setup-parameters]

For example:

MicrosoftAzureSiteRecoveryUnifiedSetup.exe /q /x:C:\Temp\Extracted
cd C:\Temp\Extracted
UNIFIEDSETUP.EXE /AcceptThirdpartyEULA /servermode "PS" /InstallLocation "D:\" /EnvType "VMware" /CSIP "10.150.24.119" /PassphraseFilePath "C:\Users\Administrator\Desktop\Passphrase.txt" /DataTransferSecurePort 443

Create a proxy settings file

If you need to set up a proxy, the ProxySettingsFilePath parameter takes a file as input. You can create the file as follows, and pass it as input ProxySettingsFilePath parameter.

* [ProxySettings]
* ProxyAuthentication = "Yes/No"
* Proxy IP = "IP Address"
* ProxyPort = "Port"
* ProxyUserName="UserName"
* ProxyPassword="Password"

Next steps

Learn about managing process server settings