> Essential > Virtualization > Hyper-V > Configuration

Editing VM Group Settings for Hyper-V

For an existing VM group, you can modify options that affect backups.

Procedure

  1. From the Command Center navigation pane, go to Protect > Virtualization.

    The Virtual machines page appears.

  2. On the VM groups tab click the VM group.

    The VM group page appears.

  3. On the Configuration tab, in the Options area, do the following:

    1. Move the Use changed block tracking toggle key to the right to use changed block tracking (CBT) for backups.

      With CBT, backups only write blocks that have changed since the previous backup. For virtual machines where there is a known issue with CBT, you can turn off CBT to run backups using the cyclic redundancy check (CRC) method instead.

    2. To enable file indexing, move the Index files after backup toggle key to the right.

    3. To edit the Backup job start time, click Edit and enter a new time.

  4. To edit other settings, in the Options area, click Edit.

    The Edit options dialog box appears.

    Specify the following:

    • No. of readers: Set the number of readers to control how many parallel read operations can be launched during backups.

    • Virtual machine backup type: Select the type of backup to perform:

      • Application Aware: Uses in-guest application plug-ins to assist the Virtual Server Agent in quiescing the file system and applications and supporting granular application data recovery.

        To specify credentials for guest VMs in the VM group, click the key button (embd_vm backup type (1)), and then provide the guest credentials.

      • File system and application consistent: Quiesces the file system and applications while performing the backup.

      • Crash-consistent: Takes a point-in-time snapshot of virtual machine data without quiescing.

      • Application-based backups: Performs application discovery for those VMs selected within the VM group and configures backups by installing an in-guest application agent.

      • To specify credentials for guest VMs in the VM group, click the key button (embd_vm backup type (1)), and then provide the guest credentials

      • Use the VM Checkpoint Setting: Performs the Hyper-V checkpoint process that was configured for the virtual machines.

  5. To enable the Snapshot management area, move the Enable snap backup toggle key to the right, and then specify the following:

    • Engine: select the snapshot vendor that you want to use.

    • Snap mount proxy: Select the access node to use for the snapshots. This setting is used only for the following operations:

      • Mounting a snapshot during the cataloging phase of an IntelliSnap backup.

      • Performing a backup copy operation, such as mounting the snapshot and copying the data to any media.

      • Mounting a snapshot during restores of VM files or full VMs that are initiated in the Command Center.

  6. To modify the plan or policy associated with the VM group, click Edit in the Plan area or the Policies area.

    The name of the area depends on whether the VM group was defined to use a backup plan that was created in the Command Center or a storage policy that was created in the CommCell Console. You cannot change that selection for an existing VM group, but you can select a different plan or policy, as follows:

    • When editing the Plan setting, you can select a plan that was previously defined in the Command Center.

    • When editing the Policies setting, you can make the following changes:

      • From the Storage policy list, you can select a storage policy that was previously defined in the CommCell Console or a plan that was defined in the Command Center.

      • Optional: You can select a schedule policy that was previously defined in the CommCell Console.

  7. Click Save.

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