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ES U16UG4010
Host Channels
(CH0 and CH1)
Drive Channel
(CH2 and CH3)
Expansion Channels
(CH4 and CH5)
DIMM Module
Table 1-1: ES U16U-G4010 Subsystem Model Variations
1.2.3 Enclosure Chassis
The ES subsystem enclosure is divided into a front and rear section.
NOTE:
Components accessed through the front panel are referred to as "Front Panel
Components" and Components accessed through the rear panel are referred to as
"Rear Panel Components."
1.2.3.1 Front Section
1.2.3.2 Rear Section
1.2.3.3 Midplane and Driveplane Boards
SCSI-320 Channels
1.2.4
Two of the ES U16U models have four SCSI-320 channels. The other two models have
six SCSI-320 channels. The channels are configured as shown in Table 1-2:
Product Overview
-42-0030
-45-0030
2 x SCSI-320
2 x SCSI-320
2 x SCSI-320
2 x SCSI-320
0
0
256MB
512MB
The front section of the ES subsystem features a 4 x 4 layout for sixteen 3.5"
SCSI-320 drives and houses a foldable LCD panel.
The rear section of the ES subsystem is accessed through the rear panel and is
reserved for the RAID controller module(s), power supply units (PSU),
cooling fan modules and power switches.
Integrated driveplane and midplane boards separate the front and rear
sections of the ES subsystem. These PCB boards provide logic level signals
and low voltage power paths. They contain no user-serviceable components.
Chapter 1: Introduction
-62-0030
-65-0030
2 x SCSI-320
2 x SCSI-320
2 x SCSI-320
2 x SCSI-320
2 x SCSI-320
2 x SCSI-320
256MB
512MB
1-3
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