C6400 chassis - 24 x 2.5-inch SAS/SATA/ 8 x 2.5-inch NVMe drive configuration
The C6400 chassis with 24 x 2.5-inch SAS/SATA or NVMe backplane drive configuration enables a total of 24 x 2.5-inch drives
and up to 6 drives per C6520 sled. Each sled has two universal drive slots which can use NVMe drives or SAS/SATA drives; rest
of the 4 drive slots can be SAS/SATA drives.
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The chassis is optimized for High-Performance Computing (HPC), High Performance Data Analytics (HPDA), Saas/IaaS,
Financial Modeling, HCI, vSAN, HPDA, SDS.
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Using an M.2 boot drive in each C6520 sled enables use of front 2.5-inch drives entirely for application data.
The C6400 chassis with NVMe backplane supports the following configurations:
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One to four C6520 sleds, each with up to 2 x 2.5-inch NVMe SSDs and 4 x 2.5-inch SAS/SATA drives.
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First two drives for each sled can be NVMe or SAS/SATA drives. The rest of the drives can be SAS or SATA drives only.
NOTE:
C6400 chassis - 24 x 2.5-inch SAS/SATA/ 8 x 2.5-inch NVMe drive configuration - Drive enumeration
The below images shows the each C6520 sled with only first two drive slots can be populated with NVMe drives (or SAS/SATA
drives). The rest of the slots for each sled only support SAS/SATA drives.
Figure 13. 2.5-inch NVMe backplane chassis with four C6520 sleds, each up to 2 NVMe drives
Figure 14. 2.5-inch NVMe backplane chassis with three C6520 sleds, each up to 2 NVMe drives
Figure 15. 2.5-inch NVMe backplane chassis with two C6520 sleds, each up to 2 NVMe drives
Dell EMC PowerEdge C6520 system overview
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