# Periodic Replication Group Options for Google Cloud

When you configure a replication group for a IntelliSnap destination, identify source instances, and then provide Google-Cloud-specific values for replication to the destination site.

You can replicate to a Google Cloud destination from Google Cloud source instances.

## Content Options

- Name: Enter a descriptive name for the replication group.

- Source hypervisor: Select the project for the source instances.

  To create a new project, click Create new.

  When you edit an existing replication group, you cannot change this value.

- Instances: Select the instances to replicate.

## Target Options

- Recovery target: Select a previously defined recovery target.

  To create a new recovery target, click Create new.

  When you edit an existing replication group, you cannot change this value.

- Access Node: Select a VSA access node (previously called a proxy) that can be used to perform the replication operation.

  To restore multiple instances or VMs simultaneously, select Automatic to distribute the workload (instances or VMs) in the auto recovery job across the access nodes that are assigned for the destination hypervisor. This option is available for operations both from streaming backups or IntelliSnap backup copies.

  First, the instances are assigned to the access nodes by a zone match. If access nodes are not available in the same zone, then the instances are assigned to access nodes in the same region. If there is no zone or region match, the access nodes are assigned using the round-robin method.

  If you already configured the Access Node setting on the recovery target, you can change that setting in the replication group Access Node option.

- Frequency: Select the frequency for replication operations.

### Advanced Options

- Unconditionally overwrite if VM already exists: When you select this option, the first replication operation replaces an existing instance with the same name in the target location, even if the destination instance is running.

  Replications that apply incremental updates are not affected by this setting. Incremental updates are applied to the destination instance without overwriting the instance. If the destination instance is currently running, replication fails.

- Deploy virtual machine only during failover: Select this option to deploy a project only after a failover operation is started.

  By default, when this option is not selected, a destination instance is deployed immediately after a replication operation completes.

## Storage / Cache Options

- Storage: Select the storage pool to use as a recovery store for source data to replicate to the destination site. To create a new storage pool, click Create new.

- Replicate using secondary copy: To replicate from a secondary copy, select this option.

  - Storage: Select the storage pool to use for secondary copies of source data to replicate to the destination site.

## Override Options

To change the destination settings for a specific instance, select the destination VM, and then click Override replication options.

You can enter override settings for one instance at a time.

The Override replication options dialog box appears.

### General settings

Enter the following information:

- VM display name: Enter the display name for the destination instance.

  You can only change this value when adding a new instance.

- Project IDZone: Select the zone in which the replicated disk is created.

  You can only change this value when adding a new instance.

- Secondary zone: Select the secondary zone in which the replicated disk is created.

  You can only change this value when adding a new instance.

- Machine type: Select a Google Cloud machine type.

#### Network settings

A default network interface is selected for the destination VM. To change the network, in the row for the default network, click the actions button, and then select Edit.

- Edit network settings

  - Virtual network/subnet: Select the virtual network.

  - External IP: To assign a public IP address to Google Cloud instances during replication, move this toggle key to the right, and then from the External IP type list, select one of the following:

    - Ephemeral: Select a random IP and assign it to a VM.

    - Reserved static IP: Select from a user-defined set of available, reserved IP addresses, with support for both Standard and Premium Tier reserved IPs

  - Primary internal IP type: Select one of the following internal IP address type:

    - Ephemeral (Automatic): Automatically assign an available IP address available within the CIDR range of selected subnet.

    - Ephimeral (Custom) - Manually enter an internal IP address in the Custom ephimeral IP address box.

    - Reserved static IP - Select an IP from the Reserved static IP list.

      Note:

      Static IP addresses from a source instance are not replicated to the destination instance.

- Sole-tenant nodes: Select the node groups in the zone that you selected.

- Custom metadata: Unconditionally overwrite the keys that already exists on the source.

### Test failover settings

Network settings: Click Add to add network settings for test failover VM.

- Add network settings

  - Virtual network/subnet: Select the virtual network.

  - External IP: To assign a public IP address to Google Cloud instances during replication, move this toggle key to the right, and then from the External IP type list, select one of the following:

    - Ephemeral: Select a random IP and assign it to a VM.

    - Reserved static IP: Select one from the list of reserved static IPs.

  - Primary internal IP type: Select one of the following internal IP address type:

    - Ephemeral (Automatic): Automatically assign an available IP address available within the CIDR range of selected subnet.

    - Ephimeral (Custom): Manually enter an internal IP address in the Custom ephimeral IP address box.

    - Reserved static IP: Select an IP from the Reserved static IP list.

Machine type: Select a Google Cloud machine type for failover.

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