Upgrade and Maintenance Manual  TX2560 M2 / RX2560 M2
7.2.13.3 Removing a 2.5-inch HDD/SSD SAS backplane  .  .  .  .  .  .  183
7.2.13.4 Installing a 2.5-inch HDD/SSD SAS backplane .  .  .  .  .  .  .  185
7.2.13.5 Installing the 2.5-inch HDD bay top cover .  .  .  .  .  .  .  .  .  .  187
7.2.13.6 Connecting cables to the backplane 1   .  .  .  .  .  .  .  .  .  .  .  189
7.2.13.7 Concluding steps   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  190
7.2.14 Replacing SAS backplanes (configuration with up to 
32 HDD/SSD modules)  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  190
7.2.14.1 Preliminary steps   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  190
7.2.14.2 Removing a SAS backplane and the SAS expander holder   191
7.2.14.3 Installing a SAS backplane  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  196
7.2.14.4 Concluding steps   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  200
7.2.15 Replacing the SAS expander board (configuration with up to 
32 HDD/SSD modules)  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  200
7.2.15.1 Preliminary steps   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  200
7.2.15.2 Removing the SAS expander board .  .  .  .  .  .  .  .  .  .  .  .  .  200
7.2.15.3 Installing the SAS expander board   .  .  .  .  .  .  .  .  .  .  .  .  .  201
7.2.15.4 Concluding steps   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  202
7.2.16 Upgrading from 8x to 16x 2.5-inch HDD/SSD configurations .  .  202
7.2.16.1 Preliminary steps   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  202
7.2.16.2 Removing the 8x 2.5-inch HDD front panel  .  .  .  .  .  .  .  .  .  203
7.2.16.3 Removing the 2.5-inch HDD bay top cover  .  .  .  .  .  .  .  .  .  203
7.2.16.4 Installing the second 2.5-inch HDD/SSD SAS backplane .  .  203
7.2.16.5 Installing the 2.5-inch HDD bay top cover .  .  .  .  .  .  .  .  .  .  204
7.2.16.6 Installing the 16x 2.5-inch HDD front panel  .  .  .  .  .  .  .  .  .  204
7.2.16.7 Installing the expander board  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  204
7.2.16.8 Concluding steps   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  205
7.3 3.5-inch HDD configurations  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  206
7.3.1 Equipping the 3.5-inch HDD bays   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  206
7.3.2 Backplane overview .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  206
7.3.3 Configuration with up to four HDD modules (one backplane)   .  207
7.3.4 Configuration with up to eight HDD modules (two backplanes)   208
7.3.5 Configuration with up to 12 HDD modules (three backplanes)  .  210
7.3.6 Mixed configuration of 3.5-inch HDD modules and 
2.5-inch HDD/SSD modules (three backplanes)  .  .  .  .  .  .  .  .  212
7.3.7 Mixed configuration of 3.5-inch HDD modules and 
2.5-inch PCIe SSDs SFF (four backplanes)   .  .  .  .  .  .  .  .  .  .  214
7.3.8 Configuration with non-hot-plug HDDs/SSDs .  .  .  .  .  .  .  .  .  .  216
7.3.9 Installing 3.5-inch HDD modules  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  218
7.3.9.1 Preliminary steps   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  218
7.3.9.2 Removing a 3.5-inch HDD dummy module  .  .  .  .  .  .  .  .  .  218
7.3.9.3 Installing a 3.5-inch HDD module  .  .  .  .  .  .  .  .  .  .  .  .  .  .  219