Adding Customization Scripts for a Replication Group

You can add a custom scripts to all VMs in a replication group. Custom scripts can be configured for the following scenarios:

  • Pre-failover script: Runs on the source VM before failover.

  • Post-failover script: Runs on the destination (recovery) VM after failover.

  • Pre-failback script: Runs on the destination (recovery) VM before failback.

  • Post-failback script: Runs on the source VM after failback.

Pre-failover scripts run only before planned failovers. Pre-failover scripts do not run before unplanned failovers.

Before You Begin

Review the following information before configuring a pre or post script for the replication group destination.

Required Components

To use pre or post scripts, you must have the following components configured:

  • Amazon: IAM role, SSM agent

  • Azure: Azure VM agent

  • VMware: Vmware Tools/Open VM tools

Supported Scripts

You can use the following scripts for each vendor:

Amazon

  • Windows: Powershell

  • Linux: Shell Scripts

Azure

  • Windows: Powershell

  • Linux: Shell Scripts

VMware

  • Windows: Batch Scripts

  • Linux: VM Guest options

Configuring Pre-Failover Scripts for all VMs in a Replication Group

You can configure a custom script that runs on the source VM before all failover operations.

  1. When you add a replication group, in the Configure replication group tool, go to the Target tab.

  2. Under Customization scripts, configure custom scripts:

  3. Beside Pre-failover, click the action action_button button, and then select Configure.

    The Configure pre-failover script dialog box appears.

  4. Enter the following information:

    • Path type: Enter the full UNC network path for the pre script, including the name of the script.

    • Path: Enter the location of the script file.

    • UNC Credentials: Enter credentials or use a set of saved credentials that have access to the UNC network:

      • Enter credentials: Select this option to manually enter the user name and password for the UNC network.

        Username: Enter the user name for a user account that has permissions to access the network path for the script.

        Password: Enter the password for the user account.

      • Use saved credentials: Select this option to use a set of credentials that were previously saved for the UNC network.

        Credentials: Select a saved set of credentials.

        Add button Add button gray Command Center: Click this button and then enter and save a set of credentials.

    • VM Guest Options: To use a VM Guest to access the script location, enter the following information:

      • User name: Enter the user name for a user account that has permissions to access the network path for the script.

      • Password: Enter the password for the user account.

      • Confirm password: Enter the same password.

  5. Click Save.

Configuring Post-Failover Scripts for all VMs in a Replication Group

You can configure a custom script that runs on the destination (recovery) VM after a failover operation.

  1. When you add a replication group, in the Configure replication group tool, go to the Target tab.

  2. Under Customization scripts, configure custom scripts:

  3. Beside Post-failover, click the action action_button button, and then select Configure.

    The Configure post-failover script dialog box appears.

  4. Enter the following information:

    • Path: Enter the location of the script file.

    • UNC Credentials: Enter credentials or use a set of saved credentials that have access to the UNC network:

      • Enter credentials: Select this option to manually enter the user name and password for the UNC network.

        Username: Enter the user name for a user account that has permissions to access the network path for the script.

        Password: Enter the password for the user account.

      • Use saved credentials: Select this option to use a set of credentials that were previously saved for the UNC network.

        Credentials: Select a saved set of credentials.

        Add button Add button gray Command Center: Click this button and then enter and save a set of credentials.

  5. Click Save.

Configuring Pre-Failback Scripts for all VMs in a Replication Group

You can configure a custom script that runs on the source VM before a failback operation.

  1. When you add a replication group, in the Configure replication group tool, go to the Target tab.

  2. Under Customization scripts, configure custom scripts:

  3. Beside Pre-failback, click the action action_button button, and then select Configure.

    The Configure pre-failback script dialog box appears.

  4. Enter the following information:

    • Path: Enter the location of the script file.

    • UNC Credentials: Enter credentials or use a set of saved credentials that have access to the UNC network:

      • Enter credentials: Select this option to manually enter the user name and password for the UNC network.

        Username: Enter the user name for a user account that has permissions to access the network path for the script.

        Password: Enter the password for the user account.

      • Use saved credentials: Select this option to use a set of credentials that were previously saved for the UNC network.

        Credentials: Select a saved set of credentials.

        Add button Add button gray Command Center: Click this button and then enter and save a set of credentials.

  5. Click Save.

Configuring Post-Failback Scripts for a Replication Group

You can configure a custom script that runs on the source VM after a failback operation.

  1. When you add a replication group, in the Configure replication group tool, go to the Target tab.

  2. Under Customization scripts, configure custom scripts:

  3. Beside Post-failback, click the action action_button button, and then select Configure.

    The Configure post-failback script dialog box appears.

  4. Enter the following information:

    • Path type: Enter the full UNC network path for the pre script, including the name of the script.

    • Path: Enter the location of the script file.

    • UNC Credentials: Enter credentials or use a set of saved credentials that have access to the UNC network:

      • Enter credentials: Select this option to manually enter the user name and password for the UNC network.

        Username: Enter the user name for a user account that has permissions to access the network path for the script.

        Password: Enter the password for the user account.

      • Use saved credentials: Select this option to use a set of credentials that were previously saved for the UNC network.

        Credentials: Select a saved set of credentials.

        Add button Add button gray Command Center: Click this button and then enter and save a set of credentials.

    • VM Guest Options: To use a VM Guest to access the script location, enter the following information:

      • User name: Enter the user name for a user account that has permissions to access the network path for the script.

      • Password: Enter the password for the user account.

      • Confirm password: Enter the same password.

  5. Click Save.

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