Storage Controller Cable Connectors and Backplanes
This section describes cabling for the storage controllers and backplanes. The SAS/SATA cables are factory-installed and are used for all supported internal controllers.
This section also contains diagrams that show the cable-to-drive mapping.
Cisco 12G Modular SAS RAID Controller or HBA For Up To 10 Drives (UCSC-RAID-M6HD or UCSC-SAS-M6HD)
These controller are supported 10-Drives SSD server version.
This HW RAID or HBA option can control up to 10 front-loading SAS/SATA drives in this server version.
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Front NVMe drives are not managed by the RAID controllers. |
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Server supports one Cisco M6 12G SAS RAID or Cisco M6 12G SAS HBA Controller that connects to the mother board.
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Front-loading drive bays 1—10 support 2.5-inch SAS/SATA drives
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Optionally, front-loading drive bays 1 to 4 support 2.5-inch NVMe SSDs (with optional front NVMe cables). These are not managed by the controller.
Drives 1 and 2 connect to NVMe connector A. Drives 3 and 4 connect to NVMe connector B.
Figure 1. Cisco UCS C225 M6 Block Diagram with Cisco M6 12G SAS RAID or Cisco M6 12G SAS HBA Controller 
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Server supports all NVMe drive version.
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Front-loading drive bays 1—10 support 2.5-inch NVMe SSDs connected to all NVMe backplane.
Figure 2. All NVMe Backplane 
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