Motorola 6806800C44B manual Introduction, Overview

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Introduction

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1.1Overview

The NCS Availability Service (AvSv) is the core service of the NetPlane software. It provides service availability to applications by coordinating the redundant resources in a cluster to provide a system with no single point of failure. It provides high-availability mechanisms to the application software it manages. These include life-cycle management of application software, fault detection, fault isolation, escalation, recovery, and repair.

The AvSv functionality is a highly compliant implementation of Service Availability Forum’s Application Interface Specification of Availability Management Framework (SAI-AIS-AMF- B.01.01) and Cluster Membership Service (SAI-AIS-CLM-B.01.01).

The Availability Service (AvSv) provides the following functionality:

zLeverage the SAF "System Description and Conceptual Model"

zHonour the Availability Management Framework" API

zHonour the SA Cluster membership Service API

zHouse the MIB tables corresponding to the hardware portion of the deployment system description which includes entity containment and fault domain hierarchy information

zHouse the MIB tables corresponding to the software portion of the deployment system description which include configuration of AMF-defined logical entities and their relationship

zPerform blade validation on receipt of HPI hot swap insertion events

zHandle fault events such as HPI hot swap extraction events, threshold crossing events etc.

The AvSv maintains a software system model database which captures SAF-described logical entities and their relationships to each other. The software system model database is initially configured from data contained in the System Description file. Through time the system model will modify due to changing system realities and administrative actions.

The SAF logical entities related in the system model include components which normalize the view of physical resources such as processes, drivers or devices. Components are grouped into Service Units according to fault dependencies that exist among them. A Service Unit is also scoped to one or more (physical) fault domains. Service Units of the same type are grouped into Service Groups (SG) which exhibit particular redundancy modelling characteristics. Service Units within a SG are assigned to Service Instances (SI) and given a High Availability state of active and standby.

The hardware database maintained by AvSv includes hardware entity containment information and the hardware fault domain hierarchy. All hardware entities are represented by their HPI entity paths. The hardware entity containment tree only includes managed FRUs which may or may not include processor environments., and non-FRU resources which include processor environments. The fault domain data includes dependency relationships between parent-child

Availability Service Programmer’s Reference (6806800C44B)

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Contents Availability Service Trademarks Contents Sample Application ContentsList of Tables List of Tables List of Figures Availability Service SubpartsList of Figures About this Manual Overview of ContentsAbbreviations About this Manual Abbreviation Definition ConventionsNotation Description BoldComments and Suggestions Summary of ChangesAbout this Manual Part Number Publication Date DescriptionAbout this Manual Overview IntroductionModels and Concepts Service Structure OverviewIntroduction Models and Concepts Service Structure Overview Introduction Availability Service SubpartsIntroduction Compliance Report Compliance ReportSection Description Supported Section Description Support Compliance ReportIntroductionSaAmfSGMaxActiveSIspe IntroductionCompliance ReportSaAmfSUsperSIRankTabl IntroductionCompliance Report Availability Service Dependencies Service Definition DocumentsService Dependency DependenciesConfiguration Service ExtensionsIntroduction Service Extensions Implementation NotesManagement Information Base MIB Management InterfaceNCS-AVSV-MIB MIB Table ID\Trap ID DescriptionManagement InterfaceNCS-AVM-MIB NCS-AVM-MIBMIB Table ID/Object ID Description SAF-AMF-MIB SAF-AMF-MIBSAF-CLM-MIB Example MIB OperationsManagement Interface Example MIB Operations Install an Application Component on a Sample Node AvSv Traps AvSv TrapsManagement Interface AvSv Traps Filter Description7 XML Command Line Interface1 set Management Interface Admin resetAdmin lock Admin lockAdmreq /2/9/ operation shutdown Management Interface Admin lockAdmswitch AdmswitchAdmswitch Sequence of Events in the Sample Application Sample ApplicationSample Application Configuration for the Sample Application Configuration for the Sample ApplicationRunning the Sample Application Building the Sample ApplicationBuilding the Sample Application Sample Application Sample Application Output Sample Application OutputCounter Value Demonstrating AMF-INITIATED Healthcheck Counter Value Ckpt Wrote 5 to the CheckPoint Ckpt Wrote 9 to the CheckPoint Ckpt Wrote 13 to the CheckPoint Sample ApplicationSample Application Output Ckpt Wrote 21 to the CheckPoint Ckpt Wrote 23 to the CheckPoint Sample Application Output For the stand-by node Sample Application Output Sample Application Sample Application Output Demo Over Unregister & Finalize the Component Counter Value Demo Over Motorola Embedded Communications Computing Documents Related DocumentationTable B-1 Motorola Publications Document Title Publication NumberTable B-2 Related Specifications Related SpecificationsRelated Documentation Related Specifications Document Title Version/Source

6806800C44B specifications

The Motorola 68000 series, particularly the 68000 microprocessor, has been a cornerstone in the evolution of computing technology. The Motorola 68000 was introduced in 1979 and is renowned for its powerful performance and versatility. One specific variant in this series, the Motorola 68000C44B, offers a remarkable blend of features that cater to both consumer and industrial applications.

The Motorola 68000C44B operates at a clock speed of 25 MHz, allowing it to handle complex instructions swiftly. With a 32-bit data bus, this microprocessor can manage a substantial amount of data simultaneously, enhancing its overall processing capability. The architecture supports a 24-bit address space, meaning it can address up to 16MB of RAM, which was a significant advancement during its time.

One of the standout characteristics of the 68000C44B is its CISC (Complex Instruction Set Computing) architecture. This design paradigm allows the microprocessor to execute multi-step operations with a single instruction, optimizing program efficiency and reducing the load on the CPU. Moreover, the 68000 family is known for its rich instruction set, which provides developers with a wide range of options for programming.

Another important feature of the Motorola 68000C44B is its support for multitasking and memory management. It offers various modes of operation, including user and supervisor modes, facilitating the development of sophisticated operating systems. The ability to work with virtual memory further enhances its utility in complex applications where resources must be managed effectively.

The 68000C44B is also distinguished by its robust compatibility with a range of peripherals and support for various input/output interfaces. This versatility makes it suitable for real-time applications, embedded systems, and consumer electronics.

In terms of power consumption, the Motorola 68000C44B is designed with efficiency in mind, making it a favorable choice for battery-operated devices. Its performance-to-power ratio allows developers to create compact and efficient products without sacrificing functionality.

Overall, the Motorola 68000C44B embodies a blend of performance, efficiency, and compatibility, making it a significant microprocessor in the history of computing. Its technologies and characteristics have laid the groundwork for advancements in microprocessor design, influencing generations of devices. The enduring legacy of the 68000 series continues to resonate in modern computing systems, showcasing the foundational impact of early microprocessors like the Motorola 68000C44B.
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