IBM System Storage DS4000 EXP420 Installation, User And Maintenance Instructions page 183

installation (continued)
preparation 21, 26
installed device records 112
installing and replacing devices
blank trays 76
hot-swap hard disk drives 73
inventory checklist 2
L
LC-LC fibre-channel cable 43
connecting to an SFP 44
removing 45
LEDs
diagnostic 62
front 60
power supply and fan unit 60
rear 61
link rate switch, verifying 86
loop redundancy 38
correct example 48
incorrect example 50
loop redundancy, described 48
M
midplane
replacing 98
Migration Guide 121
multiple drives
replacing 81
multiple EV-DDMs
replacing 81
My Support 12
N
notes, important 138
notices
electronic emission 140
FCC, Class A 140
safety and caution xi
static-sensitive precautions 73
Notices
trademarks 137
numbers, drive ID 6
numeric display 62
O
overheating, power supplies 68
overview of the product 1
P
part numbers, power cords 117
planned shutdown, powering off 64
power cabling 39
power cord use by country 117
power cords 117
power cords (continued)
routing 22
power cords and receptacles 17
power indicator light
power supply and fan unit 6
power outage
due to overheated power supplies 68
power redundancy 12
power supply
cabling 52
power supply and fan unit
described 6
removing 28
replacing 33, 89
power supply and fan units
description 6
power-fan canister
recovering from shutdown 68
power, restoring after an emergency 67
powering off
for planned shutdown 64
powering on
after planned shutdown 55
after power supply shutdown 68
at initial startup 55
problem
determination 101
product ID 58
product overview 1
R
rack cabinet
EIA 310-D Type A 19 inch 24
preparatory procedures 22
rail installation 24
site preparation 21
rack mounting template for EXP420 113
RAID controllers 38
rail installation 24
reader comment form processing xxv
readme files
finding online xxiii
rear
LEDs 61
records
identification numbers 109
installed device 112
recycling 138
removing
customer replaceable units (CRUs) 26
replacing components
handling static-sensitive devices 73
Service Action Allowed Status LED 73
replacing CRUs
ESM 32
EV-DDMs 34
hat-swap hard disk drives 34
power supply and fan unit 33
replacing failed
midplane 98
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Index