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--- title: Add hosts to a multiple-host SAP HANA system using Azure NetApp Files application volume group for SAP HANA description: Describes how to add more HANA hosts after you've created the first host in an SAP HANA multiple-host setup. services: azure-netapp-files author: b-hchen ms.service: azure-netapp-files ms.topic: how-to ms.date: 07/11/2025 ms.author: anfdocs ms.custom: - build-2025 # Customer intent: As a database administrator, I want to add additional hosts to a multiple-host SAP HANA setup using an application volume group, so that I can effectively scale my database environment to accommodate increased workloads. --- # Add hosts to a multiple-host SAP HANA system using application volume group for SAP HANA Building a multiple-host SAP HANA database always starts with creating a volume group for the first host. To begin, you must create the first host in an SAP HANA multiple-host setup (see [Deploy the first SAP HANA host](application-volume-group-deploy-first-host.md)). After that, you can add additional HANA hosts by following steps in this article. > [!IMPORTANT] > SAP recommends that you size the HANA shared volume to 1 x RAM of a HANA host for every four SAP HANA hosts of a multiple-host SAP HANA database. You might need to adjust the size for the shared volume you created with the initial host to adapt for the required capacity. ## Steps 1. From your NetApp account, select **Application volume groups**, and select **+Add Group**. In Deployment Type, select **SAP HANA** then **Next**. 2. In the **SAP HANA** tab for adding a volume group, specify the following information: * **SAP ID (SID)**: The three alphanumeric-character SAP HANA system identifier. * **Group name**: The volume group name. For a multiple-host SAP HANA, each host creates its own group. In the example screenshot below, the group name `SAP-HANA-SH9-{HostId}` is a generic name. The corresponding numeric host ID for each host you add replaces `{HostId}`. Also, the numeric host ID for the volume group description replaces `{HostId}`. If `{HostId}` isn't specified, it's appended to the end for both the group name and description. * **SAP node memory**: This value defines the size of the SAP HANA database on the host and used to calculate the required volume size and throughput. * **Capacity overhead (%)**: When you use snapshots for data protection, you need to plan for extra capacity. This field adds a size (%) for the data volume. You can estimate this value by using `"change rate per day" X "number of days retention"`. * **Multiple-host**: Select this option to add more hosts to a multiple-host HANA. * **First host ID**: Specify the number of the first host you want to add. This value is typically "2" if you're adding hosts for the first time. * **Host count**: Specify the number of hosts you want to add to the multiple-host setup. Select **Next: Volume Group**. [  ](./media/application-volume-group-add-hosts/application-multiple-hosts-sap-hana.png#lightbox) 3. In the **Volume group** tab, provide identical input as you did when you created the first HANA host. Select **Next** and continue through the **Protocol** and **Tags** sections, providing the same input as the first HANA host. (See Step 4 through Step 6 in [Deploy the first SAP HANA host](application-volume-group-deploy-first-host.md).) Select **Next: Volumes** when you reach the end of the sections. For hosts that you add, only the data and the log volumes are created. The **Volumes** page displays the two volumes in a generic form, using the `{HostId}` as a placeholder. This process simplifies the workflow, because changes are made only once for the data and log volumes for all the hosts that are being created. > [!NOTE] > SAP HANA allows you to add different compute volume types to a multiple-host setup. If you use this setup, you should add only one host for the same compute type at one time. Select **Next: Review + Create**. [  ](./media/application-volume-group-add-hosts/application-multiple-hosts-volumes.png#lightbox) 4. In the **Review + Create** tab, the `{HostId}` placeholder is replaced with the individual numbers for each of the volume groups that will be created. You can select **Next Group** to navigate through all volume groups that are being created (one for each host). You can also select a particular volume to view its details. [  ](./media/application-volume-group-add-hosts/application-multiple-review-create.png#lightbox) 5. After you navigate through the volume groups, select **Create All Groups** to create all the volumes for the HANA hosts you're adding. [  ](./media/application-volume-group-add-hosts/application-multiple-create-groups.png#lightbox) The **Create Volume Group** page shows the added volume groups with the "Creating" status. ## Next steps * [Understand Azure NetApp Files application volume group for SAP HANA](application-volume-group-introduction.md) * [Requirements and considerations for application volume group for SAP HANA](application-volume-group-considerations.md) * [Deploy the first SAP HANA host using application volume group for SAP HANA](application-volume-group-deploy-first-host.md) * [Add volumes for an SAP HANA system as a secondary database in HSR](application-volume-group-add-volume-secondary.md) * [Add volumes for an SAP HANA system as a DR system using cross-region replication](application-volume-group-disaster-recovery.md) * [Manage volumes in an application volume group](application-volume-group-manage-volumes.md) * [Delete an application volume group](application-volume-group-delete.md) * [Application volume group FAQs](faq-application-volume-group.md) * [Troubleshoot application volume group errors](troubleshoot-application-volume-groups.md)