Fujitsu PRIMERGY RX2560 M2 Upgrade And Maintenance Manual page 158

Hard disk drive (HDD) / solid state drive (SSD)
Figure 72: Example six backplanes
1 SAS backplane 1 in HDD cage 1 (basic configuration)
2 SAS backplane 2 in HDD cage 2 (basic configuration)
3 SAS backplane 3 in HDD cage 1 (basic configuration)
4 SAS backplane 4 in HDD cage 2 (basic configuration)
5 PCIe backplane 1 in optional 8x 2.5-inch PCIe SSD extension box
6 PCIe backplane 2 in optional 8x 2.5-inch PCIe SSD extension box
I
This numbering is based on
modules and up to 8 PCIe SSDs SFF (six backplanes)" on page
158
"Configuration with up to 24 HDD/SSD
Upgrade and Maintenance Manual
166.
TX2560 M2 / RX2560 M2