Adaptec 1542B - AHA Storage Controller Fast SCSI 10 MBps Spezifikationen PDF herunterladen (Seite 9)

Introduction

• Battery test

• DRAM parity errors

• Watch dog tests

• Memory integrity tests

• Power supplies level checks

• Active Pulse frequency check

IOM Diagnostics

During Startup the IOM performs the following tests:

• Flash checksum test

• FPGA configuration test

• DPRAM integrity test

• FPGA RAM integrity test

• IO Bus integrity test

During normal operation the IOM performs the following tests:

• Flash checksum test

• IO Bus diagnostics on inactive DPU

• Watch dog tests

Fully Self Describing Object Oriented Database

All information regarding the operation of the DPU is kept in DPU memory,

including tag names, descriptions, tuning constants, alarm limits, etc. In

addition, all graphical configuration data (sheet number, object location,

wiring) is stored in the DPU.

This is a major advantage as it means that there is no possibility that the

configuration observed is different from that which is installed in the DPU.

Objects are stored in a fully hierarchical database, allowing for easy cut and

paste changes and protection of control strategies.

Fully Software Backplane Compliant

With the Software Backplane (SBP), the DPU can access any exposed data

stored anywhere in a connected system as long as the connected system also

uses the SPB Protocol. Peer-to-peer transfers are rapid and transparent. No

independent transfer agent is required.

The Software Backplane uses subscription services where data is only

transmitted when changes are detected. This reduces the load on the

communications network.

Sequence of Events

Each DPU includes a built-in Sequence-of-Events (SOE) recorder that can

monitor up to 500 discrete inputs. These inputs are scanned 1,000 times a

Metso Automation MAX Controls Inc. • 278590 •

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Adaptec 1542B - AHA Storage Controller Fast SCSI 10 MBps Spezifikationen Seite 9