Motorola 6806800C44B 用户手册
Availability Service Programmer’s Reference (6806800C44B)
Introduction
Models and Concepts
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entities as well as non-parent child entities. The hardware system model also includes
validation data for managed FRUs and the linkages between entities and AMF logical nodes.
All the processor environment entities in the hardware entity containment tree, which
correspond to AMF nodes, contain the node name of the associated node. The node name
provides the linkage between the hardware and the software system models.
validation data for managed FRUs and the linkages between entities and AMF logical nodes.
All the processor environment entities in the hardware entity containment tree, which
correspond to AMF nodes, contain the node name of the associated node. The node name
provides the linkage between the hardware and the software system models.
Further functionality provided by AvSv includes:
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Automatic and administrative means to instantiate, terminate and restart resources
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Automatic and administrative means to manage or reflect Service Group, Service Unit,
Service Instance and Resource state
Service Instance and Resource state
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Administrative means to perform switch-over
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Administrative means to reset (but not power cycle) nodes
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Heartbeat and event subscription schemes for fault detection, isolation and identification
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Health-check services to probe and prevent system trauma that lead to faults
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Fault recovery mechanisms to fail-over SIs which maintain service availability in case of
system trauma
system trauma
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Fault repair mechanisms to restore failed components
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Validation of hardware resources (managed FRUs) entering the system
The AsVs itself cannot be a single-point of failure. It provides its own internal scheme and
mechanisms to protect itself from its own failure.
mechanisms to protect itself from its own failure.
1.2
Models and Concepts
This chapter provides information on:
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Service Structure and architecture
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Compliancy to SAF standard
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Service Dependencies
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References to SAF documents which provide details about the service functionality
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Service Extensions
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Implementation Notes
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Configuration
1.2.1
Service Structure Overview
Availability Service is made up of the following distributed sub-parts:
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Availability Manager
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Availability Director
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Availability Node Director