IBM DS4800 User, Installation And Maintenance Guide

54. One DS4800 and sixteen EXP710 storage expansion enclosures — Recommended cabling 75
55. One DS4800 to seven EXP810 and eight EXP710 storage expansion enclosures —
Recommended cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
56. Installing an SFP module and LC-LC cable in a DS4800 . . . . . . . . . . . . . . . .77
57. Installing an SFP module and connecting an LC-LC cable to the storage expansion enclosures 77
58. Location of host cables on RAID controllers . . . . . . . . . . . . . . . . . . . . .80
59. Cabling diagram for four redundant host connections . . . . . . . . . . . . . . . . .80
60. Ethernet and serial port locations . . . . . . . . . . . . . . . . . . . . . . . . .81
61. Host-agent (in-band) managed storage subsystems . . . . . . . . . . . . . . . . . .83
62. Direct (out-of-band) managed storage subsystems . . . . . . . . . . . . . . . . . .84
63. Examples of redundant host direct attached fibre channel configurations . . . . . . . . . .86
64. Example of a single SAN fabric configuration . . . . . . . . . . . . . . . . . . . .87
65. Example of two storage subsystems in a dual SAN environment . . . . . . . . . . . . .87
66. Example of a two-cluster configuration . . . . . . . . . . . . . . . . . . . . . . .88
67. AC power switch and AC and DC power connectors . . . . . . . . . . . . . . . . . .89
68. Redundant AC power connections to controllers and storage expansion enclosures . . . . . .91
69. Installing the front bezel . . . . . . . . . . . . . . . . . . . . . . . . . . . .96
70. AC power switches on the controllers . . . . . . . . . . . . . . . . . . . . . . .98
71. Front bezel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
72. RAID controller LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113
73. Numeric display LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . .117
74. Power supply-fan LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . .118
75. Interconnect-battery unit LEDs . . . . . . . . . . . . . . . . . . . . . . . . . 120
76. Power supply-fan Needs Attention LEDs . . . . . . . . . . . . . . . . . . . . . . 125
77. RAID controller connections . . . . . . . . . . . . . . . . . . . . . . . . . . 126
78. Removing the controller from the storage subsystem . . . . . . . . . . . . . . . . . 127
79. Circuit breaker access holes . . . . . . . . . . . . . . . . . . . . . . . . . . 127
80. Cache Active LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
81. Battery LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
82. Component lever and latch . . . . . . . . . . . . . . . . . . . . . . . . . . 136
83. RAID controller Needs Attention and Service Action Allowed LEDs . . . . . . . . . . . . 138
84. Connectors on the back of each controller . . . . . . . . . . . . . . . . . . . . . 139
85. Unlocking the SFP module latch - plastic variety . . . . . . . . . . . . . . . . . . . 139
86. Unlocking the SFP module latch - wire variety . . . . . . . . . . . . . . . . . . . 140
87. Removing a controller from the DS4800 . . . . . . . . . . . . . . . . . . . . . . 140
88. Overall DS4800 Configuration Needs Attention LED on the DS4800 front bezel . . . . . . . 145
89. Power supply-fan LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
90. Removing a power supply-fan from the DS4800 . . . . . . . . . . . . . . . . . . . 147
91. Overall DS4800 Configuration Needs Attention LED on the DS4800 front bezel . . . . . . . 149
92. Interconnect-battery unit Needs Attention and Service Action Allowed LEDs . . . . . . . . . 150
93. Removing an interconnect-battery unit from the DS4800 . . . . . . . . . . . . . . . . 151
94. Overall DS4800 Configuration Needs Attention LED on the DS4800 front bezel . . . . . . . 153
95. Battery access cover on the interconnect-battery unit . . . . . . . . . . . . . . . . . 153
96. Overall DS4800 Configuration Needs Attention LED on the DS4800 front bezel . . . . . . . 156
97. Needs Attention and SFP Model Bypass LEDs . . . . . . . . . . . . . . . . . . . 156
98. Replacing an SFP module . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
99. DS4800 parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
100. Location of MAC address labels . . . . . . . . . . . . . . . . . . . . . . . . . 179
101. DS4800 front rack mounting template . . . . . . . . . . . . . . . . . . . . . . . 182
102. DS4800 rear rack mounting template . . . . . . . . . . . . . . . . . . . . . . . 183
xiv IBM System Storage DS4800 Storage Subsystem: Installation, User’s, and Maintenance Guide

IBM DS4800 Specifications

General

Brand	IBM
Model	DS4800
Category	Storage
Language	English