IBM The IBM System Storage DCS9550 1S1 Storage Expansion Unit, Contents, Introduction, 1.1.1

			Contents
Contents
1	Introduction		1
The IBM System Storage DCS9550 1S1 Storage Expansion Unit 1
	1.1.1	Enclosure Chassis	2
	1.2.1	Power Supply/Cooling Module	3
	1.2.2	Operators Panel	4
	1.2.3	SCM Input/Output Module	5
	1.2.4	Drive Carrier Module	8
	1.2.5	Dummy Carrier Modules	9
	1.2.6	Blank Modules	9
	1.4.1	Dimensions	10
	1.4.2	Weight	10
	1.4.3	AC Power (450W PSU)	10
	1.4.4	PSU Safety and EMC Compliance	10
	1.4.5	Power Cord	10
	1.4.6	Environment	11
	1.4.7	Interfaces	12
	1.4.8	SCM I/O Module Specification	12
	1.4.9	Drive Carrier Module Specification	12
	1.4.10	Software Enclosure Services (SES) Support	13
2	Installation		15
	2.1.1	Enclosure Bay Numbering Convention	16
	2.2.1	Pre-Requisites	17
	2.2.2	Rack Mounting Rail Kit	17
	2.2.3	Chassis Installation	17
	2.3.1	Parts Check List	18
	2.3.2	Power Supply/Cooling Module Procedure	18
	2.4.1	Internal Loop Structures	20
	2.7.1	Procedure	23
	2.9.1	Planning and Configuring Your Installation	26
	2.10.1	Parts Check List	27
	2.10.2	Procedure	27
	2.10.3	Dummy Carrier Modules	29
	2.10.4	Engaging the Anti-tamper Locks	29
	2.11.1	Parts Check List	30
	2.11.2	Procedure	30
3	Operation		33
	3.1.1	Power Supply/Cooling Module LEDs	34
	3.3.1	Disk Drives LEDs	36
4 Troubleshooting and Problem Solving			37
	4.2.1	Faulty Cords	37
	4.2.2	Alarm Sounds On Power Up	38
	4.2.3	Green “Signal Good” LED on SCM Not Lit	38
	4.2.4	Computer Doesn’t Recognize the DCS9550 1S1 Storage Expansion Unit	38
	4.3.1	Power Supply/Cooling Module	38

xii