IBM System Storage Subsystem DS5020 User Manual
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51. Ethernet and serial port locations on DS5020 . . . . . . . . . . . . . . . . . . . . 79
52. Host-agent (in-band) managed storage subsystems . . . . . . . . . . . . . . . . . . 80
53. Direct (out-of-band) managed storage subsystems
. . . . . . . . . . . . . . . . . . 82
54. Location of host cables on RAID controllers on the DS5020 . . . . . . . . . . . . . . . 83
55. Cabling diagram for two redundant host connections. . . . . . . . . . . . . . . . . . 84
56. Examples of redundant host direct attached Fibre Channel SAN configurations . . . . . . . . 85
57. Example of a single SAN fabric configuration
. . . . . . . . . . . . . . . . . . . . 86
58. Example of a dual SAN fabric configuration . . . . . . . . . . . . . . . . . . . . . 86
59. Example of two storage subsystems in a dual SAN environment . . . . . . . . . . . . . 87
60. Example of a two-cluster configuration . . . . . . . . . . . . . . . . . . . . . . . 87
61. Example of a single-host, multiple-port configuration . . . . . . . . . . . . . . . . . . 88
62. Example of a multiple-host, multiple-port configuration . . . . . . . . . . . . . . . . . 89
63. Example of iSCSI and Fibre Channel hosts, multiple-port configuration . . . . . . . . . . . 89
64. Example of an incorrect configuration: Single-host, iSCSI and Fibre Channel . . . . . . . . . 90
65. Example of a multiple-host, multiple-port, multiple-switch configuration . . . . . . . . . . . 91
66. Power supply and fan unit LEDs. . . . . . . . . . . . . . . . . . . . . . . . . 102
67. Front LEDs and controls
. . . . . . . . . . . . . . . . . . . . . . . . . . . 103
68. Battery unit LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
69. LEDs, controls, and connectors of controllers with two standard Fibre Channel host expansion
channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
70. LEDs, controls, and connectors of controllers with two standard and two optional Fibre Channel
. . . . . . . . . . . . . . . . . . . . . . . . . . . 105
71. LEDs, controls, and connectors of controllers with two standard Fibre Channel host expansion
channels and two optional iSCSI host expansion channels . . . . . . . . . . . . . . . 106
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
74. Battery unit LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
75. Unlocking the SFP module latch - plastic variety . . . . . . . . . . . . . . . . . . . 124
76. Unlocking the SFP module latch - wire variety
. . . . . . . . . . . . . . . . . . . 124
77. Removing a controller from the DS5020 . . . . . . . . . . . . . . . . . . . . . . 125
78. Installing a controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
79. Hot-swap E-DDM LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
80. E-DDM CRU handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
81. Link rate LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
82. Link rate switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
83. Replacing a power supply and fan unit . . . . . . . . . . . . . . . . . . . . . . 143
84. Removing and replacing a battery unit from the controller chassis . . . . . . . . . . . . 145
85. Replacing an SFP module . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
86. Front cage frame screw locations . . . . . . . . . . . . . . . . . . . . . . . . 150
87. Screws holding the top and bottom sides of the chassis to the cage frame . . . . . . . . . 151
88. DS5020 storage subsystem parts list . . . . . . . . . . . . . . . . . . . . . . . 160
89. Front rack mounting template . . . . . . . . . . . . . . . . . . . . . . . . . . 168
90. Rear rack mounting template . . . . . . . . . . . . . . . . . . . . . . . . . . 169
91. Top View of non-IBM Rack Specifications Dimensions. . . . . . . . . . . . . . . . . 174
92. Rack specifications dimensions, top front view
. . . . . . . . . . . . . . . . . . . 175
93. Rack specifications dimensions, bottom front view . . . . . . . . . . . . . . . . . . 175
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IBM System Storage DS5020 Storage Subsystem: Installation, User’s, and Maintenance Guide