Table of Contents
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Index
A
a hot-swap EV-DDM
replacing 114
a hot-swap hard disk drive
replacing 114
about this document xvii
AC power recovery 20
acoustical noise emission values 18
airflow 9, 18, 20
altitude ranges 17
area requirements 16
audience xvii
B
battery
LEDs 102
replacing 102
battery return 173
battery unit
LEDs 12, 90
overview 11
replacing 128
bays
hot-swap drive 6
best practices 5
blank trays 110
board ID 86
C
cabling
the power supply 78
cabling schemes
DS4200 Express and storage expansion
enclosures 63
one DS4200 Express and one EXP420 storage
expansion enclosure 64
one DS4200 Express and three or more EXP420
storage expansion enclosures 65
one DS4200 Express and two EXP420 storage
expansion enclosures 64
cabling the storage subsystem
connecting host to RAID controller 72
connecting secondary interface cables 69
connecting storage expansion enclosures 54
cabling topologies
one DS4200 Express and four storage expansion
enclosures 61
one DS4200 Express and one storage expansion
enclosure 58
one DS4200 Express and three storage expansion
enclosures 61
one DS4200 Express and two storage expansion
enclosures 59
one DS4200 Express and up to six storage
expansion enclosures 61
© Copyright IBM Corp. 2006
cabling topologies (continued)
storage expansion enclosures and storage
subsystem 57
cache battery
See battery 102
cache memory
cache active LED 101
size of 101
caution and danger notices xi
checking the LEDs 88
Class A electronic emission notice 174
comments, how to send xxiii
compatibility, hardware and software 14
components
battery unit 11
battery units 6
controllers 6
EV-DDMs 6
hard disk drives 6
power supply and fan units 6
weights 16
Concepts Guide 153
configuration, installing the storage subsystem 77
contact information, Taiwan Product Service 174
controller
information record 143
removal 33
replacing 38
controller information 86
controllers
description 8
LEDs 91
location 8
replacing 106
cooling 20
Copy Services Guide 153
customer replaceable units (CRUs) 6
removal 32
removing a controller 33
removing a hard disk drive 35
removing a power supply and fan unit 33, 34
removing an EV-DDM 35
removing EV-DDMs 33
removing hard disk drives 33
replacing 38
replacing the battery unit 128
replacing the controllers 106
D
data sheet 143
devices, installing and replacing 105
diagnostic interface port 69
direct management method 71
disposal 172
document organization xvii
documentation
DS4000 153
187
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