Back up HANA 1+n and HANA scale-out databases

This page includes information about protecting HANA 1+n and HANA scale-out.

Protect HANA 1+n

To protect a HANA 1+n replication cluster as a single application, after application discovery the application has the cluster host as sid name_cluster. For example, if sr1 is the HANA instance, then the application name is sr1 and the hostname is sr1_cluster in the App Manager Applications list.

The HANA log backup destination must be shared between two nodes. When failover occurs, the database and log backup automatically fails over to the current primary, and log backups are performed from the current primary, capturing the last logs from the old primary as well as new logs from the new primary. Follow the preparation steps in Prepare your SAP HANA databases for protection.

HANA 1+n is always discovered as cluster application containing all node details in the metadata. It is a good idea to run a force discovery after any changes to cluster node configuration—such as after adding or deleting a node from the cluster. If a node is removed or added after discovery and protection, the configuration does not be updated automatically in Backup and DR metadata, and may cause backup issues.

Prerequisites for protecting SAP HANA 1+n instances and databases

Before protecting SAP HANA instances, ensure the following:

  • If hosts have virtual IPs configured, add only the virtual IP and hostname of the primary host during discovery.
  • The Backup and DR agent must be installed on all nodes.
  • Ports need to be opened on the hosts to allow communication on port 5106. This requires an ingress firewall rule where the backup/recovery appliance is the source, the host running the agent is the target and the target port is 5106. Also, there is no need to add port 5106 to the default ingress rule created for the appliance, as this specifies the appliance as the target.
  • HANA log backup location must be set on shared—NFS.

Protect HANA scale-out

SAP HANA scale-out

Prerequisites for protecting SAP HANA scale-

Before protecting SAP HANA scale-out, be sure that the following is complete:

  • If hosts have virtual IPs configured, add only the virtual IP and the associated hostname of the primary host during discovery.
  • The Backup and DR agent must be installed on all nodes.
  • Ports need to be opened on the hosts to allow communication on port 5106. This requires an ingress firewall rule where the backup/recovery appliance is the source, the host running the agent is the target and the target port is 5106. Also, there is no need to add port 5106 to the default ingress rule created for the appliance, as this specifies the appliance as the target.
  • For backint file based—Full+Incremental—backup, the HANA log backup location must be set to shared—NFS. See Add the host to the management console.

  • For storage snapshot protection

    • Data and log volume are non-shared across all nodes
    • Data and log volumes are logical volume manager managed
    • Ensure mnt000* directories exist on the local mount points to identify the primary and secondary nodes

    Follow the setup procedures in Prepare your SAP HANA databases for protection.

The Backup and DR Service SAP HANA DBA guide

This page is one in a series of pages specific to protecting and recovering SAP HANA databases with Backup and DR Service. You can find additional information in the following pages: