--- title: "Zaawansowana replikacja z Leap (EN)" description: "Implementing advanced replication with Leap" url: https://docs.ovhcloud.com/pl/guides/hosted-private-cloud/nutanix-on-ovhcloud/nutanix-leap lang: pl lastUpdated: 2023-08-08 --- # Zaawansowana replikacja z Leap (EN) ## Objective This guide details how to set up advanced replication and disaster recovery plans with **Nutanix Leap** in **Prism Central**. ## Introduction Nutanix Leap allows: - Asynchronous and synchronous replication based on the chosen licence pack - Test replicas - Advanced disaster recovery plans with virtual machine startup and, in some cases, cluster-to-cluster failover automation (only with synchronous replication and a cluster witness) - a destination to the Nutanix cloud with **Xi Leap** (note that this solution is not available with licences provided by OVHcloud) :::warning OVHcloud provides services for which you are responsible, with regard to their configuration and management. It is therefore your responsibility to ensure that they work properly. This guide is designed to assist you as much as possible with common tasks. Nevertheless, we recommend contacting a specialist provider if you experience any difficulties or doubts when it comes to managing, using or setting up a service on a server. ::: ## Requirements - Two Nutanix clusters in your OVHcloud account - Access to the OVHcloud Control Panel - Access to your clusters via **Prism Central** - An interconnection between two clusters, for example using these technologies: - via an IPsec VPN as detailed in the guide [Interconnecting IPsec between two sites](/pl/guides/hosted-private-cloud/nutanix-on-ovhcloud/ipsec-interconnection.md) - or via a [vRack](https://www.ovhcloud.com/pl/network/vrack/) connection. - **Prism Central** needs more resources depending on the mode: - Single Mode: 4GB additional RAM. - Scale Mode with 3 **Prism Central** virtual machines: 8 GB additional RAM per virtual machine. ## Instructions Our Disaster Recovery Plan via **Nutanix Leap** will be set up between two clusters, both of which are located in remote OVHcloud datacentres, one in Canada and the other in France. The two clusters are connected by an IPSec VPN with this network configuration: - Cluster administration LAN in France: **192.168.0.0/24**. - Cluster administration LAN in Canada: **192.168.10.0/24**. - Production LAN for VMs, common to both clusters: **192.168.50.0/24** on VLAN 50. - Test LAN common to both clusters: **192.168.51.0/25** on VLAN 51. ### Commissioning of Nutanix Leap #### Adding an iSCSI IP address on each cluster Before you enable **Nutanix Leap**, you must add an IP address for iSCSI connections on each cluster. Using **Prism Central**, connect to **Prism Element** on the cluster in France. You can use the [Nutanix Hyperconvergence guide](/pl/guides/hosted-private-cloud/nutanix-on-ovhcloud/nutanix-hci.md) for more information. In the top left-hand corner of the **Prism Element** dashboard, click `the cluster name `. ![00 Add iSCSI address in FRANCE01](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/00-isci-add-address-france01.png) Check the IP address in the **iSCSI Data Service IP** field. ![00 Add iSCSI address in FRANCE01](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/00-isci-add-address-france02.png) Also via **Prism Central**, now perform the same operation on the cluster in Canada. In the top left-hand corner of the **Prism Element** dashboard, click `The cluster ` name. ![01 Add iSCSI address in Canada01](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/01-isci-add-address-canada01.png) Check the IP address in the **iSCSI Data Service IP** field. ![01 Add iSCSI address in Canada02](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/01-isci-add-address-canada02.png) #### Enabling Leap Go back to the **Prism Central** interface for the cluster in France. From the main menu, click `Recovery Plans ` in the `Data Protection` submenu. ![Activate Recovery 01](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/02-activate-recovery01.png) Click `Enable Leap `. ![Activate Recovery 02](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/02-activate-recovery02.png) When you see `Prechecks successful` , click `Enable `. ![Activate Recovery 03](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/02-activate-recovery03.png) Now go back to the **Prism Central** interface of the cluster in Canada and do the same. Click `Recovery Plans `. ![Activate Recovery 01](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/02-activate-recovery01.png) Click `Enable Leap `. ![Activate Recovery 02](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/02-activate-recovery02.png) Again, when `Prechecks successful` appears on the screen, click `Enable `. ![Activate Recovery 03](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/02-activate-recovery03.png) Each cluster now has an **Availability zone**, which allows them to be interconnected. ### Connecting both clusters. Stay on **Prism Central** in the cluster in Canada. From the main menu, click `Availability Zones ` under `Administration` . ![Connect clusters 01](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/03-connect-cluster01.png) Then click `Connect to Availability Zone `. ![Connect clusters 01](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/03-connect-cluster02.png) Enter this information: - **Availability Zone Type**: `Physical Location`. - **IP Address for Remote PC**: `IP address of the remote` Prism Central. - **Username**: `Remote` Central Prism administrator account. - **Password** `Remote` Central Prism account password. Then click `Connect `. ![Connect clusters 01](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/03-connect-cluster03.png) The remote cluster is named after the private IP address of the **Prism Central** in France, preceded by **PC\_**. ![Connect clusters 02](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/03-connect-cluster04.png) Connect to the cluster in France with **Prism Central**. From the main menu, click `Availability Zones ` on the `Administration` submenu. You will see that the remote site in Canada appears with the private IP address of the **Prism Central** in Canada preceded by **PC_** . ![Connect clusters 03](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/03-connect-cluster05.png) ### Implementation of replication from Canada to France :::warning Virtual machines that will be protected with **Nutanix Leap** should not be members of a **Domain Protection** created from **Prism Element**. There is a procedure on the Nutanix website to perform this migration: [Migrating from a Domain Protection](https://portal.nutanix.com/page/documents/details?targetId=Leap-Xi-Leap-Admin-Guide-v6_1:ecd-ecdr-migratevm-protectiondomaintoprotectionpolicy-pc-t.html). ::: #### Creating a category containing the virtual machines to replicate From the main menu, click `Categories ` on the `Administration` submenu. ![Create CATEGORIE 01](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/04-create-category01.png) Click `New Category `. ![Create CATEGORIE 02](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/04-create-category02.png) Enter this information: - **Name**: `replicated-vm` - **values**: `from-canada` Then click `Save `. ![Create CATEGORIE 03](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/04-create-category03.png) Go back to the main menu and select `VMs ` under `Compute and Storage` . ![Create CATEGORIE 04](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/04-create-category04.png) Select the virtual machine by using the `check box ` to its left, then click the `Actions ` button. ![Create CATEGORIE 05](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/04-create-category05.png) In this menu, click `Manage Categories `. ![Create CATEGORIE 06](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/04-create-category06.png) Select the category you created and click the blue `\+ ` button. ![Create CATEGORY 07](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/04-create-category07.png) Click `Save `. ![Create CATEGORIE 08](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/04-create-category08.png) #### Creating the protection policy A protection policy creates a scheduled replication between two _Availability zones_. You can choose this type of schedule depending on your licence: - asynchronous every hour - _nearsync_ between 1 and 15 minutes - synchronous with a delay of 0 seconds (this mode requires a network latency of less than 5ms between the two clusters) From the main menu, click `Protection Policies ` under `Data Protection` . ![Create Protection policy 01](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/05-create-protection-policy01.png) Click `Create Protection Policy `. ![Create Protection policy 02](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/05-create-protection-policy02.png) Enter a name in the **Policy name** field. In the **Primary location** box, choose these options: - **Location**: `Local AZ` to choose the zone containing the local cluster. - **Cluster**: `Cluster containing the virtual machines to be replicated`. Click `Save `. ![Create Protection policy 03](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/05-create-protection-policy03.png) In the **Recovery location** frame, choose these options: - **Location**: `Remote cluster zone`. - **Cluster**: `Destination cluster`. Click `Save `. ![Create Protection policy 04](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/05-create-protection-policy04.png) Then click `\+ Add schedule `. ![Create Protection policy 05](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/05-create-protection-policy05.png) Choose `Asynchronous` as **Protection Type**. Change the **Take Snapshot Every** option to `Minutes: 15` to do _nearsync_ replication. Select the `Take App-Consistent Snapshots` checkbox and click `Save Schedule `. ![Create Protection policy 06](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/05-create-protection-policy06.png) Click `Next `. ![Create Protection policy 07](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/05-create-protection-policy07.png) Select the `category` where the virtual machine was added and click `Add `. ![Create Protection policy 08](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/05-create-protection-policy08.png) Click `Create `. ![Create Protection policy 09](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/05-create-protection-policy09.png) The protection policy is enabled and appears in the **Protection Policies** dashboard. ![Create Protection policy 10](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/05-create-protection-policy10.png) ### Disaster Recovery Plan Management #### Introduction Disaster recovery plans can be created with various options: - Manually launch disaster recovery plan if there is no cluster witness. - Synchronous replication disaster recovery plan automation with a cluster witness. - Choose how virtual machines start when the disaster recovery plan is activated with the ability to run a script. In our example, this will be a manual disaster recovery plan that includes automatic startup of virtual machines. #### Creating Disaster Recovery Plan From the main menu, choose `Recovery Plans ` under `Data Protection` . ![Create Recovery Plan 01](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/06-create-recovery-plan01.png) Click `Create New Recovery Plan `. ![Create Recovery Plan 02](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/06-create-recovery-plan02.png) Enter these values: - **Recovery Plan Name**: `the name of the disaster recovery plan`. - **Primary Location**: `Local AZ` to choose the zone containing the local cluster. - **Recovery Location**: `Name of the Remote Area` that will be used for the disaster recovery plan. Click `Next `. ![Create Recovery Plan 03](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/06-create-recovery-plan03.png) Click `Add Entities `. ![Create Recovery Plan 04](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/06-create-recovery-plan04.png) Select the `checkbox ` next to the virtual machine that is part of the disaster recovery plan, then click `Add `. ![Create Recovery Plan 05](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/06-create-recovery-plan05.png) Select the `checkbox ` next to the virtual machine that should start automatically when the disaster recovery plan is enabled. Then click `Next `. ![Create Recovery Plan 06](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/06-create-recovery-plan06.png) After reviewing the Disaster Recovery Plan presentation, click `OK, Got it `. ![Create Recovery Plan 07](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/06-create-recovery-plan07.png) On the primary site, choose these options: - **Production**: `Production VLAN` - **Test Failback**: `Test VLAN` On the recovery site, choose these options: - **Production**: `Production VLAN` - **Test Failback**: `Test VLAN` Then click `Done `. ![Create Recovery Plan 08](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/06-create-recovery-plan08.png) The disaster recovery plan appears in the list. ![Create Recovery Plan 09](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/06-create-recovery-plan09.png) #### Scheduled migration ##### **Migrating a site in Canada to France** Connect with **Prism Central** on the cluster in France to switch the virtual machine from Canada to France. From the main menu, choose `Recovery Plans ` in the `Data Protection` section. ![Planned Migration 01](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/07-planned-migration01.png) Select the disaster recovery plan by using the `checkbox` to the left of it, then click the `Actions ` button to open the menu. ![Planned Migration 02](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/07-planned-migration02.png) Click `Failover `. ![Planned Migration 03](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/07-planned-migration03.png) Select `Planned Failover ` as the type of Failover and click the `Failover ` button. ![Planned Migration 04](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/07-planned-migration04.png) Type `Failover ` in the confirmation field and click the `Failover ` button. ![Planned Migration 05](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/07-planned-migration05.png) The migration steps are described below: 1. Stopping the virtual machine on the original cluster. 2. Synchronising the latest changes. 3. Deleting the virtual machine on the original cluster. 4. Adding the virtual machine on the destination cluster. 5. Starting the virtual machine on the destination cluster. The result of the migration appears in the **Last Failover Status** column with the status `Succeeded` if everything went well. ![Planned Migration 06](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/07-planned-migration06.png) ##### **Reverse Replication** In the case of scheduled failover, you must reverse replication to continue to have redundancy between the two sites. Using **Prism Central**, log in to the destination cluster in France. From the main menu, choose `Protection Policies ` from the `Data Protection` submenu. ![Replication Inversion 01](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/08-replication-inversion01.png) Select the `checkbox ` to the left of the protection policy and click the `Actions ` button. ![Replication Inversion 02](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/08-replication-inversion02.png) Click the `Update ` button. ![Replication Inversion 03](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/08-replication-inversion03.png) Move left under `Primary Location` until a menu appears. Click `Edit `. ![Replication Inversion 04](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/08-replication-inversion04.png) Edit the following information in the **Primary Location** frame: - **Location**: `Local AZ` - **Cluster**: `local area cluster` Then click `Save `. ![Replication Inversion 05](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/08-replication-inversion05.png) Click `Update Location `. ![Replication Inversion 06](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/08-replication-inversion06.png) Move to the right below the destination until a menu appears. Click `Edit `. ![Replication Inversion 07](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/08-replication-inversion07.png) Then edit the following information as part of **Recovery Location**: - **Location**: `destination area`. - **Cluster**: `cluster of the destination area`. Click `Save `. ![Replication Inversion 08](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/08-replication-inversion08.png) Click `Update Location `. ![Replication Inversion 09](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/08-replication-inversion09.png) Click `Next `. ![Replication Inversion 10](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/08-replication-inversion10.png) Click `Update ` to complete the inversion. ![Replication Inversion 11](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/08-replication-inversion11.png) ##### **Modifying Disaster Recovery Plan** You must also change the disaster recovery plan by reversing the source and destination. From the main menu, choose `Recovery Plans ` from the `Data Protection` submenu. ![Recovery Plan Inversion 01](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/09-recovery-plan-inversion01.png) Select the disaster recovery plan by using the `checkbox ` to the left of the plan, then click the `Actions ` button. ![Recovery Plan Inversion 02](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/09-recovery-plan-inversion02.png) From the actions menu, click `Update `. ![Recovery Plan Inversion 03](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/09-recovery-plan-inversion03.png) In the **Primary Location** drop-down menu on the left, replace the remote cluster with `Local AZ `. ![Recovery Plan Inversion 04](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/09-recovery-plan-inversion04.png) Choose `The remote area ` in **Recovery Location** on the right instead of Local AZ. ![Recovery Plan Inversion 05](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/09-recovery-plan-inversion05.png) Now that the source and destination of the disaster recovery plan have changed, click `Next `. ![Recovery Plan Inversion 06](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/09-recovery-plan-inversion06.png) Click `Proceed `. ![Recovery Plan Inversion 07](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/09-recovery-plan-inversion07.png) Select the `Virtual Machine` that you want to start during the disaster recovery plan and click `Next `. ![Recovery Plan Inversion 08](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/09-recovery-plan-inversion08.png) On the primary site, choose these options: - **Production**: `Production VLAN` - **Test Failback**: `Test VLAN` At the destination site, choose these options: - **Production**: `Production VLAN` - **Test Failover**: `Test VLAN` Then click `Done `. ![Recovery Plan Inversion 09](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/09-recovery-plan-inversion09.png) The disaster recovery plan has been modified to allow the virtual machines in the cluster to be switched from the French to the Canadian virtual machines. If you want to return to the original operation, you will need to failover, change replication, and change the disaster recovery plan. ![Recovery Plan Inversion 10](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/09-recovery-plan-inversion10.png) #### Enabling disaster recovery plan following an incident on the original cluster The disaster recovery plan is also used in the event of a problem with the original cluster. In this case, the activation will be done without the data modified since the last synchronisation. If a synchronous replication solution is used, no data loss will occur. In our case, replication is scheduled every 15 minutes, the risk of data loss can, in the worst case, corresponds to this duration. From **Prism Central**, connect to the cluster that is receiving replicas. From the main menu, choose `Recovery Plan ` from the `Data Protection` submenu. ![Unplanned Recovery 01](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/10-unplanned-recovery01.png) Select the Disaster Recovery Plan with the `checkbox ` and click the `Actions ` button. ![Unplanned Recovery 02](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/10-unplanned-recovery02.png) Choose `Failover ` from the menu. ![Unplanned Recovery 03](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/10-unplanned-recovery03.png) Check `Unplanned Failover ` and click `Failover ` ![Unplanned Recovery 04](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/10-unplanned-recovery04.png) Type `Failover` in the confirmation field and click `Failover ` ![Unplanned Recovery 05](/images/hosted-private-cloud/nutanix-on-ovhcloud/47-nutanix-leap/10-unplanned-recovery05.png) The virtual machine that is a member of the disaster recovery plan will boot to the destination cluster with the contents of the last replication. ## Go further [Disaster Recovery Plan on Nutanix](/pl/guides/hosted-private-cloud/nutanix-on-ovhcloud/disaster-recovery-plan-overview.md) [IPsec interconnect between two sites](/pl/guides/hosted-private-cloud/nutanix-on-ovhcloud/ipsec-interconnection.md) [OVHcloud vRack](https://www.ovhcloud.com/pl/network/vrack/) [Nutanix Leap documentation](https://portal.nutanix.com/page/documents/details?targetId=Leap-Xi-Leap-Admin-Guide-v6_1:Leap-Xi-Leap-Admin-Guide-v6) If you need training or technical assistance to implement our solutions, contact your sales representative or click on [this link](https://www.ovhcloud.com/pl/professional-services/) to get a quote and ask our Professional Services experts for assisting you on your specific use case of your project. Join our community of users on [https://community.ovh.com/en/](https://community.ovh.com/en/).