HP B6960-90078 manual Typical Cluster, 614

Integrations with Other Applications

Cluster Integrations with Data Protector

Figure 13-1 A Typical Cluster

•Cluster nodes (two or more)

•Local disks

•Shared disks (shared between nodes)

Cluster Nodes Cluster nodes are computers that compose a cluster. They are physically connected to one or more shared disks.

Shared Disks The shared disks volumes (MSCS) or shared volume groups (MC/SG) or shared pools (Novell NetWare Cluster) contain mission-critical application data as well as specific cluster data needed to run the cluster. In MSCS and Novell NetWare clusters, a shared disk/pool is exclusively active on only one cluster node at a time. In MC/SG clusters, the other node can activate the disk in the read only mode.

Cluster Network Cluster network is a private network that connects all cluster nodes. It transfers the internal cluster data called heartbeat of the cluster. The heartbeat is a data packet with a time stamp that is distributed among

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