APC 15000 RAID manual Drive Enclosure Operation 115

				Contents
	5.6.3		AC INPUT PCM	106
	5.6.4		DC INPUT PCM	106
	5.6.5		DC OUTPUT PCM	107
	5.6.6 PCM Safety and EMC Compliance			107
	5.6.7		Power Cord	107
	5.7	Environment		107
6	Drive Enclosure Installation			109
	6.1	Introduction		109
	6.2	Planning Your Installation		109
	6.2.1 Enclosure Bay Numbering Convention			110
	6.3	Enclosure Installation Procedures		112
	6.4	I/O Module Configurations		112
	6.4.1		Controller Options	112
	6.5	SAS DEM		113
	6.6	SATA Interposer Features		113
	6.7	Drive Enclosure Device Addressing		113
	6.8	Grounding Checks		113
7	Drive Enclosure Operation			115
	7.1	Before You Begin		115
	7.2	Power On / Power Down		115
	7.2.1		PCM LEDs	115
	7.2.2		I/O Panel LEDs	116
8	Drive Enclosure Troubleshooting			117
	8.1	Overview		117
	8.2	Initial Start-up Problems		117
	8.2.1		Faulty Cords	117
	8.2.2 Alarm Sounds On Power Up			117
	8.2.3 Green “Signal Good” LED on I/O Module Not Lit			117
	8.2.4		Computer Doesn’t Recognize the Drive Enclosure Subsystem	117
	8.3	LEDs	........................................................................................................................................	118
	8.3.1 HDD (Hard Disk Drive)			118
	8.3.2 PCM (Power Cooling Module)			118
	8.3.3 DEM (Drive Expander Module)			118
	8.3.4		I/O Module	119
	8.3.5 Front Panel Drive Activity Indicators			120
	8.4	Audible Alarm		121
	8.4.1		Top Cover Open	121
	8.4.2		SES Command	121
	8.5	Troubleshooting		121
	8.5.1		Thermal Control	121
	8.5.2		Thermal Alarm	123
	8.5.3		Thermal Shutdown	123
	8.6	Dealing with Hardware Faults		123
	8.7	Continuous Operation During Replacement		124
	8.8	Replacing a Module		124
	8.8.1		Power Cooling Modules	124
	8.8.2		I/O Module	126
	8.8.3 Replacing the Drive Carrier Module			126

007-5510-002 iii