6.4 Replacing a hot-plug power supply unit . . . . . . . . . . . 109
6.4.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . . 109
6.4.2 Removing the defective hot-plug power supply unit . . . . . . 109
6.4.3 Installing the new hot-plug power supply unit . . . . . . . . . . 110
6.4.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . . 110
6.5 Upgrading a power supply from 450 W to 800 W . . . . . . 111
6.5.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . . 111
6.5.2 Removing the hot-plug power supply unit . . . . . . . . . . . 111
6.5.3 Installing the new hot-plug power supply unit . . . . . . . . . . 112
6.5.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . . 113
6.6 Replacing the power backplane . . . . . . . . . . . . . . . 113
6.6.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . . 113
6.6.2 Disconnecting cables . . . . . . . . . . . . . . . . . . . . . . 114
6.6.3 Removing the power backplane . . . . . . . . . . . . . . . . 114
6.6.4 Installing the power backplane . . . . . . . . . . . . . . . . . 116
6.6.5 Reconnecting cables . . . . . . . . . . . . . . . . . . . . . . 118
6.6.6 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . . 119
7 Hard disk drives / solid state drives . . . . . . . . . . . . . 121
7.1 Basic procedures . . . . . . . . . . . . . . . . . . . . . . . 122
7.2 2.5-inch HDD / SSD configurations . . . . . . . . . . . . . . 122
7.2.1 Mounting order for 2.5-inch HDDs / SSDs . . . . . . . . . . . 122
7.2.1.1 HDD / SSD mounting order for 4x 2.5-inch HDD / SSD
configuration . . . . . . . . . . . . . . . . . . . . . . . . . 123
7.2.1.2 HDD / SSD naming scheme for 4x 2.5-inch HDD / SSD
configuration . . . . . . . . . . . . . . . . . . . . . . . . . 123
7.2.1.3 HDD / SSD mounting order for 8x 2.5-inch HDD / SSD
configurations . . . . . . . . . . . . . . . . . . . . . . . . 124
7.2.1.4 HDD / SSD naming scheme for 8x 2.5-inch HDD / SSD
configurations . . . . . . . . . . . . . . . . . . . . . . . . 124
7.2.1.5 HDD / SSD mounting order for 12x 2.5-inch HDD / SSD
configuration . . . . . . . . . . . . . . . . . . . . . . . . . 125
7.2.1.6 HDD / SSD naming scheme for 12x 2.5-inch HDD / SSD
configuration . . . . . . . . . . . . . . . . . . . . . . . . . 125
7.2.1.7 HDD / SSD mounting order for 16x 2.5-inch HDD / SSD
configuration . . . . . . . . . . . . . . . . . . . . . . . . . 126
7.2.1.8 HDD / SSD naming scheme 16x 2.5-inch HDD / SSD
configuration . . . . . . . . . . . . . . . . . . . . . . . . . 126
7.2.2 Installing 2.5-inch HDD / SSD modules . . . . . . . . . . . . . 127