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10 x 2.5-inch front drive bays

Use this section to understand the backplane cable routing for server model with ten 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 2.5-inch/3.5-inch drive backplane (power).

To connect signal cables for a backplane for standard 10 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 system board connectors for onboard configuration.

Table 1. Mapping between backplane connectors and system board connectors for onboard configuration
BackplanesFromTo
Front BP (NVMe)NVMe 0-1, 2-3PCIe 1, PCIe 2
NVMe 4-5*, 6-7*, 8-9*PCIe 3, PCIe 4, PCIe 5
Front BP (SAS)SAS 0SATA 0
SAS 1SATA 1
SAS 2*SATA 2
Rear BP (if any)SASSATA 2
NVMe 0, NVMe 1PCIe 6
Note

  • *NVMe 4-5, NVMe 6-7, and NVMe 8-9 connectors are available only when the 10 x 2.5'' AnyBay front backplane is used.

  • *The SAS 2 connector only needs to be connected in the front drive scenario of 10 x 2.5'' AnyBay or 6 x 2.5'' SAS/SATA + 4 x 2.5'' AnyBay.

  • In case of front 10 x 2.5'' NVMe drive bay scenario, SAS connectors on the front backplane do not need to be connected.

The following figure illustrates the cable routing for the onboard configuration of 10 x 2.5-inch front drive bays (6 x SAS/SATA + 4 x NVMe) with a rear 2 x 2.5-inch SAS/SATA drive cage. Connections between connectors: 1 ↔ 1, 2 ↔ 2, 3 ↔ 3, ... n ↔ n

Figure 1. Cable routing for onboard configuration of 10 x 2.5-inch front drive bays (6 x SAS/SATA + 4 x NVMe) with a rear 2 x 2.5-inch SAS/SATA drive cage
Cable routing for onboard configuration of 10 x 2.5-inch front drive bays (6 SAS/SATA + 4 NVMe) with a rear 2 x 2.5-inch SAS/SATA drive cage

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 or 16i SFF HBA/RAID adapter (Gen 3 or Gen 4) is installed.

Table 2. Mapping between backplane connectors and system board/adapter connectors when an SFF HBA/RAID adapter is installed
BackplanesFromTo
Front BP (NVMe)NVMe 0-1, 2-3PCIe 1, PCIe 2
NVMe 4-5*, 6-7*, 8-9*PCIe 3, PCIe 4, PCIe 5
Front BP (SAS)SAS 0C0
SAS 1Gen 3: C1; Gen 4: C0
SAS 2*Gen 3: C2; Gen 4: C1
Rear BP (if any)SASGen 3: C3; Gen 4: C1
NVMe 0, NVMe 1PCIe 6
Note

  • *NVMe 4-5, NVMe 6-7, and NVMe 8-9 connectors are available only when the 10 x 2.5'' AnyBay front backplane is used.

  • *The SAS 2 connector only needs to be connected in the front drive scenario of 10 x 2.5'' AnyBay or 6 x 2.5'' SAS/SATA + 4 x 2.5'' AnyBay.

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

The following figure illustrates the cable routing for the configuration of 10 x 2.5-inch front AnyBay drive bays with a 16i SFF RAID adapter (Gen 4) and a rear 2 x 2.5-inch SAS/SATA drive cage. Connections between connectors: 1 ↔ 1, 2 ↔ 2, 3 ↔ 3, ... n ↔ n

Figure 2. Cable routing for 10 x 2.5-inch front AnyBay drive bays with a 16i SFF RAID adapter (Gen 4) and a rear 2 x 2.5-inch SAS/SATA drive cage
Cable routing for 10 x 2.5-inch front AnyBay drive bays with a Gen 4 16i SFF RAID adapter and a rear 2 x 2.5-inch SAS/SATA drive cage

Cable routing with an SFF RAID adapter (tri-mode)​

The following table shows the mapping relationship between backplane connectors and adapter connectors when a Gen 4 16i SFF RAID adapter (tri-mode) is installed.

Table 3. Mapping between backplane connectors and adapter connectors when a Gen 4 16i SFF RAID adapter (tri-mode) is installed
BackplaneFromTo
Front BP (SAS)SAS 0, SAS 1C0
SAS 2C1
Note
If a tri-mode RAID adapter is used, only U.3 front drives are supported, and U.2 front drives are not supported.

The following figure illustrates the cable routing for the configuration of 10 x 2.5-inch front U.3 drive bays with a 16i SFF RAID adapter (tri-mode). Connections between connectors: 1 ↔ 1, 2 ↔ 2, 3 ↔ 3, ... n ↔ n

Figure 3. Cable routing for 10 x 2.5-inch front U.3 drive bays with a Gen 4 16i SFF RAID adapter (tri-mode)
Cable routing for 10 x 2.5-inch front U.3 drive bays with a Gen 4 16i SFF RAID adapter (tri-mode)

Cable routing with a CFF HBA/RAID adapter​

The following table shows the mapping relationship between backplane connectors and system board/adapter connectors when a 16i CFF HBA/RAID adapter is installed.

Table 4. Mapping between backplane connectors and system board/adapter connectors when a 16i CFF HBA/RAID adapter is installed
BackplanesFromTo
Front BP (NVMe)NVMe 0-1, 2-3PCIe 1, PCIe 2
Front BP (SAS)SAS 0C0
SAS 1C1
SAS 2C2
Rear BP (if any)SASC3
NVMe 0, NVMe 1PCIe 6
Note
For power and input cable connection of the CFF HBA/RAID adapter, refer to CFF HBA/RAID adapter.

The following figure illustrates the cable routing for the configuration of 10 x 2.5-inch front drive bays (6 x SAS/SATA + 4 x AnyBay) with a 16i CFF RAID adapter and a rear 2 x 2.5-inch SAS/SATA drive cage. Connections between connectors: 1 ↔ 1, 2 ↔ 2, 3 ↔ 3, ... n ↔ n

Figure 4. Cable routing for 10 x 2.5-inch front drive bays (6 x SAS/SATA + 4 x AnyBay) with a 16i CFF RAID adapter and a rear 2 x 2.5-inch SAS/SATA drive cage
Cable routing for 10 x 2.5-inch front drive bays (6 SAS/SATA + 4 AnyBay) with a 16i CFF RAID adapter and a rear 2 x 2.5-inch SAS/SATA drive cage