2.5-inch drive backplane cable routing
Use the section to understand the cable routing for the 2.5-inch drive backplane.
When routing the cables, make sure that all cables are routed appropriately through the corresponding cable guides and cable clips.
Backplane numbering
| Drive backplane | Drive bay | Supported drive backplanes | Supported drives |
|---|---|---|---|
| 1 Backplane 1 | 0 to 7 |
|
|
| 2 Backplane 2 | 8 to 15 | ||
| 3 Backplane 3 | 16 to 23 | ||
| 4 Backplane 4 | 24 to 31 |
|
|
| 5 Backplane 5 | 32 to 39 | ||
| 6 Backplane 6 | 40 to 47 |
An AnyBay backplane supports SAS, SATA, and NVMe drives. AnyBay backplanes are used as NVMe backplanes when no RAID/HBA adapters are installed.
| Installation priority | Backplane type | Backplane placement priority |
|---|---|---|
| 1 | 2.5-inch AnyBay 8-bay drive backplane | 1, 3, 2 |
| 2 | 2.5-inch SAS/SATA 8-bay drive backplane | 1, 2, 3, 4, 5, 6 |
1 backplane: 1 x SAS/SATA backplane or 1 x AnyBay backplane
2 backplanes: 2 x SAS/SATA backplanes, 2 x AnyBay backplanes, or combination of both
3 backplanes: 3 x SAS/SATA backplanes, 3 x AnyBay backplanes, or combinations of both
6 backplanes: 6 x SAS/SATA backplanes, or combinations of SAS/SATA backplanes and AnyBay backplanes
A maximum of 3 AnyBay backplanes are supported.
For detailed information about storage configurations, see Storage configurations.
Power cable routing
 |
| Cable | From (backplane) | To (system board assembly) |
|---|---|---|
| MPIC 6p+6s to MPIC 6p+6s (230 mm) | 1 BP 1: PWR | 1 BP 3 PWR |
| MPIC 6p+6s to MPIC 6p+6s (230 mm) | 2 BP 2: PWR | 2 BP 5 PWR |
| MPIC 6p+6s to MPIC 6p+6s (230 mm) | 3 BP 3: PWR | 3 BP 8 PWR |
| MPIC 6p+6s to MPIC 6p+6s (150 mm) | 4 BP 4: PWR | 4 BP 1 PWR |
| MPIC 6p+6s to MPIC 6p+6s (150 mm) | 5 BP 5: PWR | 5 BP 6 PWR |
| MPIC 6p+6s to MPIC 6p+6s (150 mm) | 6 BP 6: PWR | 6 BP 9 PWR |
NVMe cable routing
| BP 1 NVMe cable routing | BP 2 NVMe cable routing | BP 3 NVMe cable routing |
|---|---|---|
 |  |  |
| Cable | From (backplane) | To (system board assembly) |
|---|---|---|
| MCIO x8 to MCIO x8 (520 mm) | 1a BP 1: NVMe 0-1 | 1a NVMe 10 |
| MCIO x8 to MCIO x8 (520 mm) | 1b BP 1: NVMe 2-3 | 1b NVMe 9 |
| Swift x8 to MCIO x8 (230 mm) | 1c BP 1: NVMe 4-5 | 1c NVMe 1 |
| Swift x8 to MCIO x8 (230 mm) | 1d BP 1: NVMe 6-7 | 1d NVMe 2 |
| Swift x8 to MCIO x8 (230 mm) | 2a BP 2: NVMe 0-1 | 2a NVMe 3 |
| Swift x8 to MCIO x8 (230 mm) | 2b BP 2: NVMe 2-3 | 2b NVMe 4 |
| Swift x8 to MCIO x8 (230 mm) | 2c BP 2: NVMe 4-5 | 2c NVMe 5 |
| Swift x8 to MCIO x8 (230 mm) | 2d BP 2: NVMe 6-7 | 2d NVMe 6 |
| Swift x8 to MCIO x8 (230 mm) | 3a BP 3: NVMe 0-1 | 3a NVMe 7 |
| Swift x8 to MCIO x8 (230 mm) | 3b BP 3: NVMe 2-3 | 3b NVMe 8 |
| MCIO x8 to MCIO x8 (520 mm) | 3c BP 3: NVMe 4-5 | 3c NVMe 12 |
| MCIO x8 to MCIO x8 (520 mm) | 3d BP 3: NVMe 6-7 | 3d NVMe 11 |
SAS/SATA cable routing
Gen 4 RAID/HBA adapters: 545-8i/940-8i/940-16i/440-16i
1 x backplane: 1 x RAID/HBA 8i
2 x backplanes: 1 x RAID/HBA 16i
3 x backplanes: 1 x RAID/HBA 8i + 1 x RAID/HBA 16i
6 x backplanes: 3 x RAID/HBA 16i
Depending on your configuration, the RAID/HBA adapters will be installed in different risers. Based on the location of the RAID/HBA adapter, select the corresponding routing path from the following table.
| Cable routing to riser 3 | Cable routing to riser 2 | Cable routing to riser 1 |
|---|---|---|
 |  |  |
| Cable | From (backplane) | To (RAID/HBA adapter) |
|---|---|---|
| SlimSAS x8 to SlimSAS x8 (1020 mm) | 1 BP 1: SAS | 1 RAID/HBA 8i/16i |
| SlimSAS x8 to SlimSAS x8 (1020 mm) | 2 BP 2: SAS | 2 RAID/HBA 8i/16i |
| SlimSAS x8 to SlimSAS x8 (1020 mm) | 3 BP 3: SAS | 3 RAID/HBA 8i/16i |
| SlimSAS x8 to SlimSAS x8 (1020 mm) | 4 BP 4: SAS | 4 RAID/HBA 8i/16i |
| SlimSAS x8 to SlimSAS x8 (1020 mm) | 5 BP 5: SAS | 5 RAID/HBA 8i/16i |
| SlimSAS x8 to SlimSAS x8 (1020 mm) | 6 BP 6: SAS | 6 RAID/HBA 8i/16i |