The Tivoli® Storage Manager backup-archive client is designed to manage the backup of cluster drives by placing the backup-archive client within the context of the cluster's resource groups.
This gives the advantage of backing up data from local resources (as opposed to accessing the data across the network) to maximize the performance of the backup operation and to manage the backup data relative to the resource group. Therefore, the backup-archive client can always back up data on cluster resources as if the data were local data and maximize backup performance. This ensures that critical data is getting backed up across system failures.
For example, an active/active cluster environment has three physical hosts in the cluster named NodeA, NodeB, and NodeC.
The nodes have the following qualities:
For best backup performance, you might want all nodes in the cluster to perform the backups of the shared file systems that they own. When a node failover occurs, the backup tasks of the failed node shift to the node to which the failover occurred. For example, when NodeA fails over to NodeB, the backup of /A1 and /A2 moves to NodeB.
The following are prerequisites before configuring the backup-archive client to back up cluster and non-cluster volumes:
Follow the steps below to configure the Tivoli Storage Manager backup-archive client in a cluster environment.