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4 x 2.5'' SAS/SATA backplane (one processor)

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

To connect cables for a 7mm drive backplane, refer to 7mm drive backplane.

To connect power cables for a backplane for standard 2.5-inch or 3.5-inch drives, refer to Cable routing for backplane power.

To connect signal cables for a backplane for standard 4 x 2.5-inch 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 processor board connectors for onboard configuration.

The following figure illustrates the cable routing for the onboard configuration of 4 x 2.5-inch front AnyBay drive bays. Connections between connectors: 11, 22, 33, ... nn

Figure 1. Cable routing for onboard configuration of 4 x 2.5-inch front AnyBay drive bays
Cable routing for onboard configuration of 4 x 2.5-inch front AnyBay drive bays

Table 1. Mapping between backplane connectors and processor board connectors for onboard configuration
BackplanesFromTo
Front BP (SAS)SASSATA 0

Cable routing with an SFF HBA/RAID adapter

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

The following figure illustrates the cable routing for the configuration of 4 x 2.5-inch front AnyBay drive bays with an 8i SFF RAID adapter. Connections between connectors: 11, 22, 33, ... nn

Figure 2. Cable routing for 4 x 2.5-inch front AnyBay drive bays with an 8i SFF RAID adapter
Cable routing for 4 x 2.5-inch front AnyBay drive bays with an 8i SFF RAID adapter

Table 2. Mapping between backplane connectors and processor 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.

Cable routing for 4 x 2.5-inch front SAS/SATA drive bays with an 8i CFF RAID adapter (Gen 3) installed

The following table shows the mapping relationship between backplane connectors and processor board/adapter connectors when an 8i CFF RAID adapter (Gen 3) is installed.

Figure 3. Cable routing for 4 x 2.5-inch front SAS/SATA drive bays with an 8i CFF RAID adapter installed

Table 3. Mapping between backplane connectors and processor board/adapter connectors when a CFF RAID adapter is installed
BackplanesFromTo
Front BP (SAS)SASC0
CFF RAID adapterMB inputPCIe 2