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Intel
LB440GX 2U Rack Server Chassis TPS Rev 1.0
7 Hot-Swap SCSI Subsystem
The Intel LB440GX 2U rack server chassis has two independent, identical hot-swap backplanes.
Each backplane supports two Ultra2 SCSI hot-swappable drives. Two configurable switches on the
back of each backplane (see Figure 11) determine the identification of each drive. The backplanes
are then daisy chained with a standard 68-pin Ultra-2 SCSI cable. The hot-swap SCSI subsystem
supports the following features:
Hot-swapping of Ultra-2 SCSI drives, that allows connection of SCSI devices while the power
§
is on.
Full dual mode LVD operation, compliant with Fast, Ultra and Ultra-2 SCSI bus operation.
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7.1
Subsystem Purpose
The Intel LB440GX 2U rack server chassis hot-swap SCSI backplane performs the tasks associated
with hot-swappable SCSI drives. The backplane design allows for:
Four high density 68 pin connectors for four LVD Ultra-2 compatible SCSI drives
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Active termination on SCSI bus
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Per-drive power control, including automatic slot power down upon drive removal
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7.2
Abstract
The Intel LB440GX hot-swap SCSI backplane is made up of the following functional blocks:
SCSI Bus with Ultra-2 high density LVD 68 pin drive connectors, and active terminators
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SCSI drive power control
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Configuration jumpers
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10
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