IBM System Storage Subsystem DS5020 - Manual (Page 246)

power supply and fan units (ac)
description 13
power-fan canister
recovering from shutdown 114
power, restoring after an emergency 112
powering off
for planned shutdown 109
powering on
after planned shutdown 95
after power supply shutdown 114
at initial startup 95
problem
determination 153
product ID 99
product overview 1
R
rack cabinet
EIA 310-D Type A 19 inch 34
preparatory procedures 32
rail installation 34
site preparation 30
rack mounting template for DS5020 167
RAID controller
cache battery 117
connecting Ethernet cable to 78
connecting host to 82
connecting RS-232 (serial) cable 79
RAID controllers) 6
rail installation 34
readme files
finding online xxiv
records
identification numbers 163
installed device 166
redundant drive channel pair, defined 55
redundant host and drive loops 85
removal of the CRUs 36
replacing components
battery unit 144
controller 122
handling static-sensitive devices 121
Service Action Allowed Status LED 121
replacing CRUs
ac power supply and fan unit 43
controller 42
hot-swap E-DDMs 44
hot-swap hard disk drives 44
replacing failed
ac power supply and fan unit 139
midplane 149
SFP module 146
resources
Web sites xxv
restoring power
after planned shutdown 95
after power supply shutdown 114
restoring power after an emergency 112
RS-232 serial port 79
S
safety information xiii
safety, static-sensitive devices 29
SATA technology, definition of 3
settings
Fibre Channel loop and ID 45, 46
storage expansion enclosure 78
SFP modules
described 16
replacing 146
shock and vibrations requirements 22
shutdown, emergency 112
Simple Network Management Protocol (SNMP)
traps 11
site preparation 31
small form-factor pluggable module (SFP)
connecting an LC-LC Fibre Channel cable 52
important information about 48
protective cap 49
removal 50
removing an LC-LC cable 54
static-protective package 49
Small-form Factor Pluggable modules
described 16
replacing 146
SNMP traps 11
specifications 19
specifications, fiber-optic cables 47
startup sequence 95
static-sensitive devices, handling 29, 121
steps
connecting storage expansion enclosures 56
storage area network (SAN)
technical support Web site xxv
storage expansion enclosure
settings 78
turning on before storage subsystem 134
storage expansion enclosures
cabling schemes 67
connecting to storage subsystem 54, 56
storage manager software and hardware
compatibility 17
storage subsystem
airflow 13
checking status 101
configuring 79
connecting storage expansion enclosures to 56
drive ID numbers 9
fans 13
fault indicator LEDs 101
identification numbers 163
information record 164
performing an emergency shutdown 112
power supply and fan unit 13
records 163
restoring power after an emergency 112
startup sequence 95
troubleshooting 100
turn on and turn off the 95
turning off 109
216 IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide