NEC MT2200, User Manual

Page: 36 / 192

2-18
Features
Figure 2-4. SCSI-2 Hard Drive Bays
3
0
4 5
1
2
Six bays for SCSI drives
(EMI panel and exterior door
shown open)
SCSI Drive Hot-swap Backplane
The SCSI backplane is an integral part of the chassis.
The backplane provides control signals for six SCSI
peripheral devices (address 0 through 5 in Figure 2-4).
The backplane receives control signals from the system
board ultra wide SCSI-2 controller channel.
The backplane has two main functions: SCSI drive
control and system data logging. Drive status is
monitored to detect failing drives and to control LED
indicators. The backplane features are:
■
Inserting and removing of hard drives while power
is on (referred to as “hot swap”)
■
Simplified cable management
■
SCA connectors to simplify inserting and removing
hard drives
■
SCSI management of fault LEDs.
Each backplane supports SCSI drives with SCA
connectors.