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Configuring Block-Level Replication for VMware

You can configure replication by providing information about the source, destination, and recovery options.

Before You Begin

  • Configure virtualization clients for the source and destination vCenters.
  • Configure Commvault VAIO filters on the source and destination ESX clusters.
  • To use granular recovery points, create an RP Store.

Procedure

  1. From the CommCell Browser, navigate to Client Computers > virtualization_client > Virtual Server > VMware > backup_set.
  2. Right-click a subclient, point to Continuous Replication, and click Configure.

    The Replication Configuration wizard opens.

  3. On the Destination page, provide the following information for the destination site:
    • vCenter Client: Select the destination vCenter.
    • Instance Details: Displays the address and user for the vCenter virtualization client.
    • Proxy Client: Select the VSA proxy to be used for replication at the destination site.
  4. Click Next.
  5. On the Source page, click Add VMs to select VMs that should be replicated to the destination site.
  6. Click Next.
  7. On the Destination Settings page, select options to apply to all destination VMs:
    • ESX Server: Browse to select a destination ESX server.
    • Datastore: Select a destination datastore.
    • Under Edit Destination VM Name, select Prefix or Suffix, and then enter a string to be added to the destination VM names.
    • Under (Optional) Advanced Configuration, you can specify the following information:
      • Resource Pool: Browse to select a destination resource pool.
      • VM Folder: Browse to select a destination folder.
  8. Click Next.

    The Destination Recovery Options page appears.

  9. On the Destination Recovery Options page, select one of the following options:
    • Live: Update destination VMs with the latest updates from the source VMs.

      This option does not enable the destination VM to revert to a previous recovery point.

    • Granular: Enable granular recovery points.

      This option provides the maximum flexibility in recovering to specific points in time. You can specify the following options for granular recovery points:

      • Create Crash Consistent Recovery Points (RPO) Every: Select this option and specify the minimum time interval between VM recovery points.
      • Create Application Consistent Recovery Points Every: To create application-consistent recovery points, select this option and specify the time interval between recovery points.

        When this option is selected, source VMs are quiesced to create application-consistent recovery points for destination VMs.

      • Change Journal Retention: Specify the length of time to retain recovery points.

        After this time period, the accumulated change history for recovery points is pruned from the RP Store and written to the destination VMDKs.

      • Merge Recovery Points Older Than: Select this option and specify the length of time before older small recovery points are merged to create larger recovery points (for example, daily instead of hourly).

        This value defines the time period during which short intervals between recovery points is most valuable.

        Merging older recovery points reclaims RP Store disk space.

      • Recovery Point Interval at the End of Retention: Specify the time interval between the oldest recovery points in the RP Store.

        As recovery points get older and are merged, the interval between them grows larger. This option configures the maximum allowed interval for the oldest recovery points.

        The maximum interval between older recovery points is specified by this value.

      • Switch to Live Recovery If RP Store Is Offline for More Than: Select this option to switch to live replication if the RP Store on the destination site is inaccessible for the time interval you specify.

        If you specify this option, the replication service abandons the RP Store if it does not come back online within the specified period. The replication service resyncs the destination VMDK with the source VMDK, and switches to live replication instead of granular replication. When this option is used, and the RP Store comes back online after the specified interval, all changes in the RP Store are erased and all accumulated recovery points in the RP Store are discarded.

        If you do not specify this option, the replication is paused, and the change journal accumulates on the source until the RP Store comes back online.

        With this option, you can choose whether to a) preserve the changes in the RP Store, but not apply them to the destination VM while the RP Store is offline; or b) continually update the destination VM, but lose all granular recovery points.

      • Prune and Merge Changes During Off-Peak Time Only: Select this option to specify whether to transfer updates for the oldest recovery points to destination VMDKs during off-peak hours.

        If you specify this option, recovery point updates are transferred to the RP Store only during off-peak hours, providing better replication performance during peak hours.

        If you do not specify this option, recovery point updates are transferred to the destination VMDK on an ongoing basis, based on the value specified for the Change Journal Retention option.

        With this option, you can prioritize a) replication speed or b) reclaiming space in the RP Store.

      • RP Store: Select an existing RP Store that can be used to store journal entries for granular recovery points, or click Create RP Store to create a new RP Store.
  10. Click Next.
  11. Optional: On the Customize page, select Customize configuration to customize the settings for specific VMs, and then provide the following information:
    • VM and Disk: This column displays the list of all the virtual machines and disks selected for replication. Expand each virtual machine to view the disks in that virtual machine.
    • Change VM display name to: This column displays the existing name of each destination virtual machine. To change the name of any virtual machine, click in the corresponding row and enter the new name.
    • ESX Server: This column displays the ESX server of each destination virtual machine. To change the ESX server of any virtual machine, click in the corresponding row; then click ... and select the ESX server where you want to replicate the virtual machine.
    • Datastore: This column displays the datastore of each disk for the destination VM. To change the datastore of any disk, click in the corresponding row; then select a datastore from the list. By default, virtual machine disks (VMDKs) for the replicated VM are added to the datastore that was selected on the Destination VM Settings page; but you can specify a different datastore.
    • Recovery Option: Click in the row for a VM, and then browse to edit the recovery settings for the VM.
    • vCenter Options: Select one or more rows; then click Configure and provide any of the following information for the selected virtual machines:
      • Edit Destination VM Name (only displayed when multiple VMs are selected): Select one of the following options:

        Prefix: Enter a prefix to be added to the destination VM names for all selected virtual machines.

        Suffix: Enter a suffix to be added to the destination VM names for all selected virtual machines.

      • Destination VM (only displayed when a single VM is selected): You can change the name of the destination VM in this box.
      • ESX Server: Click ... to select a new destination ESX server for all selected virtual machines.
      • Datastore: Select a destination datastore for all selected virtual machines.
      • Resource Pool: Click ... to select a destination resource pool for all selected virtual machines.
      • VM Folder: Click ... to select a destination folder for all selected virtual machines.
      • Head Proxy: Select a VSA proxy to be used at the source site.
      • Under Network Settings: Click Add Rule to change the network configuration for restored VMs.

        In the Network Settings dialog box, you can map each network in the Source Network list to a network in the Destination Network list. These mappings enable restored VMs to connect to appropriate networks in the location where they are restored.

        Select a network from the Source Network list or type the network name as it is displayed in the vSphere client. Select Any Network to create a default rule for network adapters that are not covered by another rule.

        If you select Not Connected for the Destination Network value, virtual machines are restored with network interfaces in disconnected state.

        Click OK to save network settings.

  12. Click OK to save vCenter options for selected VMs.
  13. Click Next.

    The Summary page appears.

  14. Click Finish to complete the configuration.

Last modified: 3/12/2019 3:40:26 PM