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Service Procedure
63-1181-01 Rev A
1
Scalar 218 Theory of Operation
Overview
The
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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:
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Controller Section
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Media Handling Mechanism
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Drive Assembly Section
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Power Supply Section
Below is a functional block diagram of the Scalar 218:
Functional Block Diagram
