Dell PowerEdge R840 EMC Installation and Service Manual - Page 116

Drive mapping

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Figure 83. 24 x 2.5-inch (24 NVMe) backplane 1. PCIe cable connector 3. PCIe cable connector 5. Backplane signal connector 7. Power cable connector 9. Power cable connector 2. PCIe cable connector 4. PCIe cable connector 6. SAS/SATA cable connector 8. Backplane signal connector Figure 84. 2.5 inch (x24) SAS/SATA (expander) with universal slot for NVMe backplane 1. SAS cable connector A 3. Backplane signal connector(J_BP_SIG) 5. Power cable connector (J_PWR_B) 7. PCIe cable connector 9. PCIe cable connector 11. PCIe cable connector 2. SAS cable connector B 4. Power cable connector (J_PWR_A) 6. PCIe cable connector 8. PCIe cable connector 10. PCIe cable connector Drive mapping Table 21. Supported drive options Chassis options Twenty-four drive chassis Configurations Up to twenty four 2.5 inch SAS/SATA front accessible drives in slots 0 through 23 Up to twenty four 2.5 inch SAS/SATA front accessible drives in slots 0 through 23 + two 2.5 inch rear accessible SAS/SATA drives 116 Installing and removing system components

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Figure 83. 24 x 2.5-inch (24 NVMe) backplane
1.
PCIe cable connector
2.
PCIe cable connector
3.
PCIe cable connector
4.
PCIe cable connector
5.
Backplane signal connector
6.
SAS/SATA cable connector
7.
Power cable connector
8.
Backplane signal connector
9.
Power cable connector
Figure 84. 2.5 inch (x24) SAS/SATA (expander) with universal slot for NVMe backplane
1.
SAS cable connector A
2.
SAS cable connector B
3.
Backplane signal connector(J_BP_SIG)
4.
Power cable connector (J_PWR_A)
5.
Power cable connector (J_PWR_B)
6.
PCIe cable connector
7.
PCIe cable connector
8.
PCIe cable connector
9.
PCIe cable connector
10.
PCIe cable connector
11.
PCIe cable connector
Drive mapping
Table 21. Supported drive options
Chassis options
Configurations
Twenty-four drive
chassis
Up to twenty four 2.5 inch
SAS/SATA front accessible
drives in slots 0 through 23
Up to twenty four 2.5 inch
SAS/SATA front accessible
drives in slots 0 through 23 +
two 2.5 inch rear accessible
SAS/SATA drives
116
Installing and removing system components