Quantum Scalar 218 Notice download pdf (Page 1)

adic Service Procedure 63-1181-01 Rev A 1

Scalar 218 Theory of Operation

Overview

The adic Scalar 218 design allows speedy fault isolation to the Field Replaceable Unit (FRU) level. Each

FRU can be rapidly replaced resulting in very short down-times for the customer.

The Scalar 218 is best thought of as three separate units: the library robotics section and each of the two

drives. The host computer views each of these units as separate SCSI devices.

The Scalar 218 is composed of the following functional sections:

l Controller Section

l Media Handling Mechanism

l Drive Assembly Section

l Power Supply Section

Below is a functional block diagram of the Scalar 218:

Functional Block Diagram

1 2 3 4 5 6

adic Service Procedure 63-1181-01 Rev A 1 Scalar 218 Theory of Operation Overview The adic Scalar 218 design allows speedy fault isolation to the Fi

Scalar 218 Theory of Operation adic Service Procedure 63-1181-01 Rev A 2 Functional Sections Controller The Controller can be logically divided into

Scalar 218 Theory of Operation adic Service Procedure 63-1181-01 Rev A 3 l Provides a monitor function, mirroring SCSI commands and inter-processor

Scalar 218 Theory of Operation adic Service Procedure 63-1181-01 Rev A 4 Micro-Stepper Processor The Micro-Stepper Processor takes high level movemen

Scalar 218 Theory of Operation adic Service Procedure 63-1181-01 Rev A 5 Media Handling Mechanism This section controls all movement of media within

Scalar 218 Theory of Operation adic Service Procedure 63-1181-01 Rev A 6 Operator Panel The Operator Panel includes an eight-key keypad and a 4-line

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Quantum Scalar 218 Notice Page 1