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Drive backplane installation rules and order

This section contains information on the drive backplane installation rules and order.

Note
  • When one or more of the following components are installed in the system, the maximum number of supported drive backplanes is two.
    • ThinkSystem Mellanox ConnectX-6 Dx 100GbE QSFP56 2-port PCIe Ethernet Adapter
    • ThinkSystem Nvidia ConnectX-7 NDR200/HDR QSFP112 2-Port PCIe Gen5 x16 InfiniBand Adapter
    • ThinkSystem NVIDIA ConnectX-7 NDR400 OSFP 1-Port PCIe Gen5 Adapter
    • ThinkSystem 96GB TruDDR5 4800MHz (2Rx4) RDIMM
    • ThinkSystem 128GB TruDDR5 4800MHz (4Rx4) 3DS RDIMM v1
    • ThinkSystem 128GB TruDDR5 4800MHz (4Rx4) 3DS RDIMM v2
  • When one of the following components is installed in the system, the maximum number of supported drive backplanes is one.
    • ThinkSystem 256GB TruDDR5 4800MHz (8Rx4) 3DS RDIMM v1
    • ThinkSystem 256GB TruDDR5 4800MHz (8Rx4) 3DS RDIMM v2
The server supports up to three 2.5-inch drive backplanes with the following corresponding drive backplane numbers.
Figure 1. 2.5-inch drive backplane numbering
2.5-inch drive backplane numbering
Table 1. 2.5-inch drive backplane and corresponding drive bays
BackplaneDrive baySupported backplanesSupported drives
1 Backplane 10 to 7
  • 2.5-inch AnyBay 8-bay drive backplane
  • 2.5-inch SAS/SATA 8-bay drive backplane
  • 2.5-inch SAS/SATA/NVMe drives
  • 2.5-inch SAS/SATA drives
2 Backplane 28 to 15
3 Backplane 316 to 23
Note
2.5-inch AnyBay 8-bay drive backplanes support 2.5-inch SAS/SATA/NVMe drives.
Table 2. 2.5-inch drive backplane installation order
Installation priorityBackplane typeBackplane placement priority
12.5-inch AnyBay 8-bay drive backplane1, 3, 2
22.5-inch SAS/SATA 8-bay drive backplane1, 2, 3