What Cluster Aware Backup extension does
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PDF of this doc site
- Cluster administration
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Volume administration
- Logical storage management with the CLI
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NAS storage management
- Configure NFS with the CLI
- Manage NFS with the CLI
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Manage SMB with the CLI
- Manage file access using SMB
- SAN storage management
- Security and data encryption
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Data protection and disaster recovery
- Data protection with the CLI
Collection of separate PDF docs
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CAB (Cluster Aware Backup) is an NDMP v4 protocol extension. This extension enables the NDMP server to establish a data connection on a node that owns a volume. This also enables the backup application to determine if volumes and tape devices are located on the same node in a cluster.
To enable the NDMP server to identify the node that owns a volume and to establish a data connection on such a node, the backup application must support the CAB extension. CAB extension requires the backup application to inform the NDMP server about the volume to be backed up or restored prior to establishing the data connection. This allows the NDMP server to determine the node that hosts the volume and appropriately establish the data connection.
With the CAB extension supported by the backup application, the NDMP server provides affinity information about volumes and tape devices. Using this affinity information, the backup application can perform a local backup instead of a three-way backup if a volume and tape device are located on the same node in a cluster.