TX2550 M4 Upgrade and Maintenance Manual
7.3.13 Upgrading from 8x to 16x 2.5-inch HDD/SSD configurations . . 209
7.3.13.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 209
7.3.13.2 Removing the 8x 2.5-inch HDD front panel . . . . . . . . . 210
7.3.13.3 Removing the 2.5-inch HDD bay top cover . . . . . . . . . 210
7.3.13.4 Installing the second 2.5-inch HDD/SSD SAS backplane . . 210
7.3.13.5 Installing the 2.5-inch HDD bay top cover . . . . . . . . . . 211
7.3.13.6 Installing the 16x 2.5-inch HDD front panel . . . . . . . . . 211
7.3.13.7 Installing the expander board . . . . . . . . . . . . . . . . 211
7.3.13.8 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 212
7.4 3.5-inch HDD configurations . . . . . . . . . . . . . . . . . 212
7.4.1 Backplane overviews . . . . . . . . . . . . . . . . . . . . . . 213
7.4.2 Configuration with up to four HDD modules . . . . . . . . . . . 214
7.4.3 Configuration with up to eight HDD modules . . . . . . . . . . 215
7.4.4 Configuration with up to 12 HDD modules . . . . . . . . . . . . 216
7.4.5 Configuration with non-hot-plug HDDs/SSDs . . . . . . . . . . 217
7.4.6 Installing 3.5-inch HDD modules . . . . . . . . . . . . . . . . 218
7.4.6.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 218
7.4.6.2 Removing a 3.5-inch HDD dummy module . . . . . . . . . 218
7.4.6.3 Installing a 3.5-inch HDD module . . . . . . . . . . . . . . 219
7.4.6.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 220
7.4.7 Removing 3.5-inch HDD modules . . . . . . . . . . . . . . . . 220
7.4.7.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 220
7.4.7.2 Removing a 3.5-inch HDD module . . . . . . . . . . . . . . 221
7.4.7.3 Installing a 3.5-inch HDD dummy module . . . . . . . . . . 221
7.4.7.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 222
7.4.8 Replacing a 3.5-inch HDD module . . . . . . . . . . . . . . . 223
7.4.8.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 224
7.4.8.2 Removing the defective 3.5-inch HDD module . . . . . . . 224
7.4.8.3 Installing the new 3.5-inch HDD module . . . . . . . . . . . 224
7.4.8.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 224
7.4.9 Replacing a 3.5-inch HDD SAS backplane . . . . . . . . . . . 225
7.4.9.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 225
7.4.9.2 Removing the 3.5-inch HDD bay top cover . . . . . . . . . 225
7.4.9.3 Removing a 3.5-inch HDD SAS backplane . . . . . . . . . 229
7.4.9.4 Installing a 3.5-inch HDD SAS backplane . . . . . . . . . . 230
7.4.9.5 Installing the 3.5-inch HDD bay top cover . . . . . . . . . . 231
7.4.9.6 Connecting cables to the SAS backplane 1 . . . . . . . . . 233
7.4.9.7 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 233
7.4.10 Upgrading to 8x 3.5-inch HDD configurations . . . . . . . . . . 234
7.4.10.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 234
7.4.10.2 Removing the 3.5-inch HDD bay top cover . . . . . . . . . 234