.. _Migrating Backups from Acronis Storage 1.5:

Migrating Backups from Acronis Storage 1.5
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#. Update all Acronis Storage 1.5 nodes to version 1.5.65655 or newer as earlier versions are not eligible for migration. To do this, log in to each Acronis Storage 1.5 node and supply the latest ISO image on the **SETTINGS** > **Software Update** screen.

#. Log in to the new Virtuozzo Infrastructure Platform cluster and on the **STORAGE SERVICES** > **Backup** > **NODES** screen, select one or more nodes and click **Migrate**.

#. Select **Acronis Storage 1.5** and click **NEXT**.

#. Specify the DNS name of the source storage registered in Acronis Backup Cloud and click **NEXT**.

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#. Provide the credentials for the cloud management portal of the Acronis Backup Cloud installation that the source storage is registered in and click **NEXT**.

#. Enable SSH access on all FES nodes of Acronis Storage 1.5 as instructed and click **NEXT**.

#. Map the public IP addresses of FES nodes accessible via SSH to their private IP addresses and click **NEXT**. This step is required to access FES nodes via SSH through tunnels.

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#. Choose a destination storage type to create a gateway to:

   - local Virtuozzo Infrastructure Platform cluster,
   - external NFS, or
   - public cloud.

#. Make sure the network interface that is connected to a network with the **ABGW private** traffic type is selected in the drop-down list. The corresponding interface that is connected to a network with the **ABGW public** traffic type will be selected automatically. Click **NEXT**.

   .. note:: If necessary, click the cogwheel icon and assign Acronis Backup Gateway roles on the **Network Configuration** screen.

#. Configure the destination storage backend:

   - For an Virtuozzo Infrastructure Platform cluster, select the desired tier, failure domain, and redundancy mode.
   - For NFS, specify a hostname or IP address, an export name and path, and choose the NFS version.

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   - For public cloud, select a public cloud provider, specify credentials, and the name of the folder (bucket, container).

     .. important:: You must update Acronis Backup Agents to version 4492 (Windows/Mac) or 4470 (Linux). Otherwise agents' attempts to place backups in the new storage backend will result in "Backup failed" errors.

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   Click **NEXT**.

#. Review the source and destination storages and click **PROCEED**.

#. On the next panel, follow the instructions to point the source storage DNS name to the IP addresses of your new Virtuozzo Infrastructure Platform cluster. Having updated the DNS configuration, click **START MIGRATION**. If all the backup agents have been rerouted to the new Virtuozzo Infrastructure Platform cluster, the migration will start. Otherwise you will need to wait until all backup agents have cached the new IP addresses.

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Depending on data size, migration may take as long as several days.
