Scsi Backplane Board; Features - Acer AcerAltos 21000 System Manual

3.3

SCSI Backplane Board

The SCSI backplane board provides a convenient interface between
the SCSI drives and the system board. It includes eight SCSI drive
slots to accommodate the drive trays and two SCSI channels to
connect to the system board or SCSI controller board.
3.3.1

Features

The backplane board has the following major features:
"Hot-swap" feature that allows replacement of a defective hard
drive even while the system is in full operation. This feature
requires a RAID controller board and RAID drivers.
2 channel configurations which support 4 SCSI hard drives per
channel configuration
Indicates hard disk drive failure through a front panel board LED
Supports ultra-2 SCSI SCA (Single Connector Attachment) disk
drives
SCSI ID strapping that allows wide SCSI HDD ID configuration
through the backplane switches, instead of configuring the
individual drive IDs
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