IBM System Storage Subsystem DS5020 - Manual (Page 243)

Index
A
a hot-swap E-DDM
replacing 130
a hot-swap hard disk drive
replacing 130
about this document xix
ac power cords and receptacles 24
ac power recovery 23
ac power requirements 23
ac power supply
cabling 91
ac power supply and fan unit
replacing 43, 139
ac power supply and fan unit, removal 38
ac site wiring requirements 23
accessible documentation 199
acoustical noise emission values 22
airflow 13, 21, 24
altitude ranges 21
area requirements 19
audience xix
B
battery
LEDs 117
replacing 117
battery unit
LEDs 16, 103
overview 15
replacing 144
bays
hot-swap drive 7
best practices 5
blank trays 126
board ID 99
BOOTP server
sample network 11
C
cabling
ac power supply 91
cabling rules 67
cabling schemes
DS5020 and storage expansion enclosures 67
one DS5020 and one EXP520 storage expansion
enclosure 70
one DS5020 and three or more EXP520 storage
expansion enclosures 72
one DS5020 and two EXP520 storage expansion
enclosures 71
cabling the storage subsystem
connecting host to RAID controller 82
connecting secondary interface cables 78
connecting storage expansion enclosures 54
cabling topologies
one DS5020 and four storage expansion
enclosures 63
one DS5020 and one storage expansion
enclosure 59
one DS5020 and three storage expansion
enclosures 62
one DS5020 and two or more storage expansion
enclosures in a mixed configuration 66
one DS5020 and two storage expansion
enclosures 60
one DS5020 and up to six storage expansion
enclosures 64
storage expansion enclosures and storage
subsystem 57
cache battery
See battery 117
cache memory
cache active LED 116
size of 116
caution and danger notices xiii
checking the LEDs 101
Class A electronic emission notice 200
components
4 Gbps hard disk drives 6
battery unit 15
battery units 6
controllers 6
power supply and fan units 6
SFP modules 6
weights 19
Concepts Guide 183
configuration, installing the storage subsystem 91
contamination, particulate and gaseous 199
controller
information record 164
removal 37
replacing 42
controller information 99
controllers
description 8
LEDs 104
location 8
replacing 122
cooling 24
Copy Services Guide 183
customer replaceable units (CRUs) 6
removal 36
removing a ac power supply and fan unit 37
removing a controller 37
removing a hard disk drive 39
removing an ac power supply and fan unit 38
removing an E-DDM 39
removing E-DDMs 37
removing hard disk drives 37
replacing 42
replacing the battery unit 144
replacing the controllers 122
© Copyright IBM Corp. 2009 213