HP StoreOnce 4430 HP StoreOnce Backup System Concepts and Configuration Guidel - Page 23

B6200 Basic Concepts, HP StoreOnce B6200

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B6200 Basic Concepts Figure 6 HP StoreOnce B6200, basic concepts The above diagram shows the basic concepts of the HP B6200 StoreOnce architecture - understanding the architecture is key to successful deployment. • Node: This is the basic physical building block and consists of an individual server (HP Proliant server hardware) • Couplet: This consists of two associated nodes and is the core of the failover architecture. Each couplet has a common disk storage sub-system achieved by dual controller architecture and cross-coupled 6Gbps SAS interfaces. Each node has access to the storage subsystem of its partner node. • Service set: This is a collection of software modules (logical building blocks) providing VTL/NAS and replication functions. Each service set can have Virtual Tape (VT), NAS and replication configurations. • Management Console: This consists of a set of software 'agents', each agent running on a node, only one of which is active at any one time. Each node is in communication via an internal network. The Management Console provides a virtual IP address for the Management GUI and CLI. If node failure is detected, any agent may become active (first one to respond). Only ONE active Management Console agent is allowed at any one time. • Cluster: This is a collection of 1 to n couplets. For the HP StoreOnce B6200 Backup System n=4. This means that a 4-couplet, 8-node configuration is the largest permitted configuration. • Failover: This occurs within a couplet. Service sets for VTL/NAS/Replication will run on the remaining node in the couplet. • Failback: This is a manual process to restart a node after recovery/repair. • VIF: This is a Virtual network Interface. Network connections to the HP B6200 Backup System are to virtual IP addresses. The network ports of the nodes use bonded connections and each bonded (2 ports into 1 entity) interface has one virtual IP address. This means that if a physical port fails, the other port in the bonded pair can be used as the data channel because the VIF is still valid. This architecture eliminates single point of hardware failure. The architecture does B6200 Basic Concepts 23

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B6200 Basic Concepts
Figure 6 HP StoreOnce B6200, basic concepts
The above diagram shows the basic concepts of the HP B6200 StoreOnce architecture –
understanding the architecture is key to successful deployment.
•
Node:
This is the basic physical building block and consists of an individual server (HP Proliant
server hardware)
•
Couplet:
This consists of two associated nodes and is the core of the failover architecture.
Each couplet has a common disk storage sub-system achieved by dual controller architecture
and cross-coupled 6Gbps SAS interfaces. Each node has access to the storage subsystem of
its partner node.
•
Service set:
This is a collection of software modules (logical building blocks) providing VTL/NAS
and replication functions. Each service set can have Virtual Tape (VT), NAS and replication
configurations.
•
Management Console:
This consists of a set of software ‘agents’, each agent running on a
node, only one of which is active at any one time. Each node is in communication via an
internal network. The Management Console provides a virtual IP address for the Management
GUI and CLI. If node failure is detected, any agent may become active (first one to respond).
Only ONE active Management Console agent is allowed at any one time.
•
Cluster:
This is a collection of 1 to n couplets. For the HP StoreOnce B6200 Backup System
n=4. This means that a 4-couplet, 8-node configuration is the largest permitted configuration.
•
Failover:
This occurs within a couplet. Service sets for VTL/NAS/Replication will run on the
remaining node in the couplet. • Failback: This is a manual process to restart a node after
recovery/repair.
•
VIF:
This is a Virtual network Interface. Network connections to the HP B6200 Backup System
are to virtual IP addresses. The network ports of the nodes use bonded connections and each
bonded (2 ports into 1 entity) interface has one virtual IP address. This means that if a physical
port fails, the other port in the bonded pair can be used as the data channel because the VIF
is still valid. This architecture eliminates single point of hardware failure. The architecture does
B6200 Basic Concepts
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