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4 x 2.5'' SAS/SATA backplane

Use this section to understand the SAS/SATA backplane cable routing for server model with four 2.5'' front drives.

To connect power cables for a backplane for standard 2.5'' or 3.5'' drives, refer to Backplane power cable routing.

To connector cables of RAID flash power modules, refer to RAID flash power modules.

To connect signal cables for a backplane for standard 4 x 2.5'' front drives, refer to the following cable routing scenarios depending on your server configuration:

Cable routing for onboard configuration​

The following table shows the mapping relationship between backplane connectors and system board connectors for onboard configuration.

Figure 1. Cable routing for onboard configuration of 4 x 2.5'' front SAS/SATA drive bays
Cable routing for onboard configuration of 4 x 2.5'' front AnyBay drive bays
Table 1. Mapping between backplane connectors and system board connectors for onboard configuration
BackplanesFromTo
Front BP (SAS)SASPCIe connector 7

Cable routing with an SFF HBA/RAID adapter​

The following table shows the mapping relationship between backplane connectors and system board/adapter connectors when an 8i SFF HBA/RAID adapter (Gen 3 or Gen 4) is installed.

Figure 2. Cable routing for 4 x 2.5'' front AnyBay drive bays with an 8i SFF RAID adapter (Gen 3 or Gen 4)
Cable routing for 4 x 2.5'' front AnyBay drive bays with an 8i SFF RAID adapter
Table 2. Mapping between backplane connectors and system board/adapter connectors when an SFF HBA/RAID adapter is installed
BackplanesFromTo
Front BP (SAS)SASC0
Note

  • Gen 3 and Gen 4 SFF HBA/RAID adapters are slightly different in their connectors, but the cable routing method is similar.

  • To connect cables for RAID flash power module, refer to RAID flash power modules.