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Server model with 16 x 2.5-inch front drive bays (SAS/SATA)

This section provides cable routing information for the server model with two 8 x 2.5-inch SAS/SATA front drive backplanes.

Configuration 1: two 8 x 2.5" SAS/SATA front backplanes, onboard connections​

Figure 1. Cable routing for configuration with two 8 x 2.5" SAS/SATA front backplanes
Cable routing for configuration with two 8 x 2.5" SAS/SATA front backplanes

CableFromTo
1 SAS signal cableSAS 0 and SAS 1 connectors on the backplane 1PCIe connector 6 on the system board
2 SAS signal cableSAS 0 connector on the backplane 2PCIe connector 7 on the system board
3 SAS signal cableSAS 1 connector on the backplane 2PCIe connector 8 on the system board
Note
When the SAS/SATA backplanes are connected to PCIe connectors on the system board, only SATA drives are supported, SAS drives not supported.

Configuration 2: two 8 x 2.5" SAS/SATA front backplanes, one 16i RAID/HBA adapter​

Figure 2. Cable routing for configuration with two 8 x 2.5" SAS/SATA front backplanes and one 16i RAID/HBA adapter
Cable routing for configuration with two 8 x 2.5" SAS/SATA front backplanes and one 16i RAID/HBA adapter

Note

When a Gen 4 RAID/HBA adapter is installed, ensure that you use the corresponding Gen 4 cable:

ThinkSystem SR655 2.5" SAS/SATA 8-Bay X40 RAID

CableFromTo
1 SAS signal cableSAS 0 connector on the backplane 1

The RAID/HBA adapter

  • Gen 3：C0

  • Gen 4：C0

SAS 1 connector on the backplane 1

The RAID/HBA adapter

  • Gen 3：C1

  • Gen 4：C0

2 SAS signal cableSAS 0 connector on the backplane 2

The RAID/HBA adapter

  • Gen 3：C2

  • Gen 4：C1

SAS 1 connector on the backplane 2

The RAID/HBA adapter

  • Gen 3：C3

  • Gen 4：C1

Configuration 3: two 8 x 2.5" SAS/SATA front backplanes, two 8i RAID/HBA adapters​

Figure 3. Cable routing for configuration with two 8 x 2.5" SAS/SATA front backplanes and two 8i RAID/HBA adapters
Cable routing for configuration with two 8 x 2.5" SAS/SATA front backplanes and two 8i RAID/HBA adapters

Note

When a Gen 4 RAID/HBA adapter is installed, ensure that you use the corresponding Gen 4 cable:

ThinkSystem SR655 2.5" SAS/SATA 8-Bay X40 RAID

CableFromTo
1 SAS signal cableSAS 0 connector on the backplane 1

The RAID/HBA adapter on the internal riser card

  • Gen 3：C0

  • Gen 4：C0

SAS 1 connector on the backplane 1

The RAID/HBA adapter on the internal riser card

  • Gen 3：C1

  • Gen 4：C0

2 SAS signal cableSAS 0 connector on the backplane 2
The RAID/HBA adapter on the internal riser card

  • Gen 3：C0

  • Gen 4：C0

SAS 1 connector on the backplane 2
The RAID/HBA adapter on the internal riser card

  • Gen 3：C1

  • Gen 4：C0

Configuration 4: two 8 x 2.5" SAS/SATA front backplanes, one rear drive cage (SAS/SATA), one 24i RAID adapter​

This configuration supports one rear 2.5-inch drive cage with a 4 x 2.5-inch SAS/SATA drive backplane.

Figure 4. Cable routing for configuration with two 8 x 2.5" SAS/SATA front backplanes, one rear drive cage, and one 24i RAID adapter
Cable routing for configuration with two 8 x 2.5" SAS/SATA front backplanes, one rear drive cage, and one 24i RAID adapter

CableFromTo
1 SAS signal cableSAS 0 connector on the front backplane 1Connector C0 on the 24i RAID adapter
SAS 1 connector on the front backplane 1Connector C1 on the 24i RAID adapter
2 SAS signal cableSAS 0 connector on the front backplane 2Connector C2 on the 24i RAID adapter
SAS 1 connector on the front backplane 2Connector C3 on the 24i RAID adapter
3 SAS signal cableSAS connector on the rear backplaneConnector C4 on the 24i RAID adapter

Configuration 5: two 8 x 2.5" SAS/SATA front backplanes, one rear drive cage (SAS/SATA), two RAID/HBA adapters (8i+16i)​

This configuration supports one rear 2.5-inch drive cage with a 4 x 2.5-inch SAS/SATA drive backplane.

Figure 5. Cable routing for configuration with two 8 x 2.5" SAS/SATA front backplanes, one rear drive cage, and two RAID/HBA adapters (8i+16i)
Cable routing for configuration with two 8 x 2.5" SAS/SATA front backplanes, one rear drive cage, and two RAID/HBA adapters (8i+16i)

Note

When a Gen 4 RAID/HBA adapter is installed, ensure that you use the corresponding Gen 4 cable:

For cable 1 and 2: ThinkSystem SR655 2.5" SAS/SATA 8-Bay X40 RAID

For cable 3: ThinkSystem SR655 2.5" & 3.5" SAS/SATA 4-Bay Rear Backplane X40 RAID Cable Kit

CableFromTo
1 SAS signal cableSAS 0 connector on the front backplane 1
The 16i RAID/HBA adapter

  • Gen 3：C0

  • Gen 4：C0

SAS 1 connector on the front backplane 1
The 16i RAID/HBA adapter

  • Gen 3：C1

  • Gen 4：C0

2 SAS signal cableSAS 0 connector on the front backplane 2
The 16i RAID/HBA adapter

  • Gen 3：C2

  • Gen 4：C1

SAS 1 connector on the front backplane 2
The 16i RAID/HBA adapter

  • Gen 3：C3

  • Gen 4：C1

3 SAS signal cableSAS connector on the rear backplane
The 8i RAID/HBA adapter

  • Gen 3：C0

  • Gen 4：C0

Configuration 6: two 8 x 2.5" SAS/SATA front backplanes, one rear drive cage (SAS/SATA), three 8i RAID/HBA adapters​

This configuration supports one rear 2.5-inch drive cage with a 4 x 2.5-inch SAS/SATA drive backplane.

Figure 6. Cable routing for configuration with two 8 x 2.5" SAS/SATA front backplanes, one rear drive cage, and three 8i RAID/HBA adapters
Cable routing for configuration with two 8 x 2.5" SAS/SATA front backplanes, one rear drive cage, and three 8i RAID/HBA adapters

Note

When a Gen 4 RAID/HBA adapter is installed, ensure that you use the corresponding Gen 4 cable:

For cable 1 and 2: ThinkSystem SR655 2.5" SAS/SATA 8-Bay X40 RAID

For cable 3: ThinkSystem SR655 2.5" & 3.5" SAS/SATA 4-Bay Rear Backplane X40 RAID Cable Kit

CableFromTo
1 SAS signal cableSAS 0 connector on the front backplane 1
The 8i RAID/HBA adapter on the internal riser card

  • Gen 3：C0

  • Gen 4：C0

SAS 1 connector on the front backplane 1
The 8i RAID/HBA adapter on the internal riser card

  • Gen 3：C1

  • Gen 4：C0

2 SAS signal cableSAS 0 connector on the front backplane 2
The 8i RAID/HBA adapter on riser card 1

  • Gen 3：C0

  • Gen 4：C0

SAS 1 connector on the front backplane 2
The 8i RAID/HBA adapter on riser card 1

  • Gen 3：C1

  • Gen 4：C0

3 SAS signal cableSAS connector on the rear backplane
The 8i RAID/HBA adapter on riser card 2

  • Gen 3：C0

  • Gen 4：C0

Configuration 7: two 8 x 2.5" SAS/SATA front backplanes, one rear drive cage (SAS/SATA), one 32i RAID adapter​

This configuration supports one rear 2.5-inch drive cage with a 4 x 2.5-inch SAS/SATA drive backplane.

Figure 7. Cable routing for configuration with two 8 x 2.5" SAS/SATA front backplanes, one rear drive cage, and one 32i RAID adapter
Cable routing for configuration with two 8 x 2.5" SAS/SATA front backplanes, one rear drive cage, and one 32i RAID adapter

Note

The 32i RAID adapter belongs to Gen 4. Ensure that you use the corresponding Gen 4 cable:

  • For cable 1 and 2: ThinkSystem SR655 2.5" SAS/SATA 8-Bay X40 RAID

  • For cable 3: ThinkSystem SR655 2.5" & 3.5" SAS/SATA 4-Bay Rear Backplane X40 RAID Cable Kit

CableFromTo
1 SAS signal cableSAS 0 and SAS 1 connectors on the front backplane 1Connector C0 on the 32i RAID adapter
2 SAS signal cableSAS 0 and SAS 1 connectors on the front backplane 2Connector C1 on the 32i RAID adapter
3 SAS signal cableSAS connector on the rear backplaneConnector C3 on the 32i RAID adapter