HP ProLiant 4500 Compaq ProLiant Cluster HA/F100 and HA/F200 Administrator Gui - Page 153

Appendix B: Using Compaq Redundancy Manager in a Single-Server Environment, Overview

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B Appendix Using Compaq Redundancy Manager in a Single-Server Environment Overview Compaq Redundancy Manager (Fibre Channel) is software designed to increase the availability of single-server or clustered systems using a Compaq StorageWorks RAID Array 4000 storage system (formerly Compaq Fibre Channel storage system). Redundancy Manager detects failures of the Compaq StorageWorks Fibre Channel Host Adapter (host bus adapter), Compaq StorageWorks RA4000 Controller (array controller), and Fibre Channel cable paths, and then reroutes the I/O processing. Redundancy Manager is a monitoring tool; it is not a real-time management tool. In a nonclustered environment, Redundancy Manager enables full utilization of the redundant hardware available for use with RA4000 storage systems. For example, a single server may be configured with multiple host bus adapters, and it may be connected to dual RA4000s containing redundant storage array controllers and two Compaq StorageWorks Fibre Channel Storage Hubs. IMPORTANT: Cable your Compaq ProLiant single-server system according to Compaq-recommended guidelines. Redundancy Manager may appear to work if the system is cabled differently, but it will not function in failover mode correctly.

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Appendix
B
Using Compaq Redundancy Manager in
a Single-Server Environment
Overview
Compaq Redundancy Manager (Fibre Channel) is software designed to
increase the availability of single-server or clustered systems using a Compaq
StorageWorks RAID Array 4000 storage system (formerly Compaq Fibre
Channel storage system). Redundancy Manager detects failures of the Compaq
StorageWorks Fibre Channel Host Adapter (host bus adapter), Compaq
StorageWorks RA4000 Controller (array controller), and Fibre Channel cable
paths, and then reroutes the I/O processing. Redundancy Manager is a
monitoring tool; it is not a real-time management tool.
In a nonclustered environment, Redundancy Manager enables full utilization
of the redundant hardware available for use with RA4000 storage systems. For
example, a single server may be configured with multiple host bus adapters,
and it may be connected to dual RA4000s containing redundant storage array
controllers and two Compaq StorageWorks Fibre Channel Storage Hubs.
IMPORTANT:
Cable your Compaq ProLiant single-server system according to
Compaq-recommended guidelines. Redundancy Manager may appear to work if the
system is cabled differently, but it will not function in failover mode correctly.