Microsoft Windows Server 2003 Cluster Server Integration

Solution Description
As a part of its high-availability functionality and support, Data Protector provides an integration
solution with the Microsoft Cluster Server (MSCS).
MSCS Components
The MSCS consists of the following components:
• Cluster nodes
• Local disks
• Shared disks
• Groups
• Resources
Cluster nodes are computers that compose a cluster. They are physically connected to one or more
shared disks.
The shared disk volumes contain mission-critical application data as well as specific cluster data
needed to run the cluster. A shared disk is exclusively active on only one cluster node at a time.
A group is a collection of resources that are needed to run a specific cluster-aware application. Each
cluster-aware application declares its own critical resources. The following resources must be defined
in each group:
• Shared disk volumes
• Network IP names
• Network IP addresses
• Cluster-aware application services
High Availability of the Data Protector Cell Manager
A cluster-aware Data Protector Cell Manager, that is responsible for running the Data Protector
Internal Database (IDB) and managing backup and restore operations, has many major benefits over
non-cluster versions. All Cell Manager operations are always available. Data Protector services are
defined as cluster resources within the cluster and are automatically restarted when a failover occurs.
Example Setup of Data Protector Cluster
The following figure describes a cluster-aware Data Protector Cell Manager, which will be used as a
reference in the next chapters.
Cluster CLNODE2 is configured with two nodes: TCP020 and TPC021. The cluster-aware Cell
Manager can be accessed by the virtual node CLVIP16. The cluster group Data Protector keeps its
data on a disk array (EVA), which provides disks for MSCS Quorum (Q:), Data Protector (E:) and for
future use (F:, G:). The HP MSL5000 tape library is connected with both nodes.
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