Cisco HX C240 M6 Node Installation and Service Guide
Bias-Free Language
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This appendix provides storage controller (HBA) information.
Storage Controller Card Firmware Compatibility
Firmware on the storage controller (RAID or HBA) must be verified for compatibility with the current Cisco IMC and BIOS versions
that are installed on the node. If not compatible, upgrade or downgrade the storage controller firmware using the Host Upgrade
Utility (HUU) for your firmware release to bring it to a compatible level.
Note
For nodes running in standalone mode only: After you replace controller hardware (HX-RAID-M6T, HX-RAID-M6HD, HX-RAID-M6SD, HX-SAS-M6T, or HX-SAS-M6HD), you must run
the Cisco UCS Host Upgrade Utility (HUU) to update the controller firmware, even if the firmware Current Version is the same
as the Update Version. Running HUU is necessary to program any controller specific values to the storage controller for the
specific node. If you do not run HUU, the storage controller may not be discovered..
See the HUU guide for your Cisco IMC release for instructions on downloading and using the utility to bring node components
to compatible levels: HUU Guides.
RAID Backup (Supercap)
This server supports installation of one Supercap unit. The unit mounts to a bracket in-line with the fan modules.
The optional SCPM provides approximately three years of backup for the disk write-back cache DRAM in the case of a sudden
power loss by offloading the cache to the NAND flash.
Use either all SAS or all SATA drives in a RAID group.
Use the same capacity for each drive in the RAID group.
Never mix HDDs and SSDs in the same RAID group.
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 M6 12G Modular SAS RAID Controller or HBA For Up To 16 Drives (UCSC-RAID-M6T)
The drive support differs by server version, as described in the following sections. These controllers are supported only
in these server versions:
SFF 12-Drives, SAS/SATA
SFF 12-Drives NVMe
SFF 12-Drives SAS/SATA
This HW RAID or HBA option can control up to 12 front-loading SAS/SATA drives in this server version, plus two rear-loading
SAS/SATA drives.
Connect a SAS/SATA cable from the small Slimline connector on the RAID card.
Connect a SAS/SATA cable to the Riser 3B connector on the PCE Riser 3 cage.
Figure 1. SFF, 12-Drive UCSC-C240-M6S Cabling With UCSC-RAID-M6T
Cisco 12G Modular SAS RAID Controller or HBA For Up To 28 Drives (UCSC-RAID-M6SD)
This controller is supported only in this server version:
SFF 24-Drives SAS/SATA
SFF 24 Drives NVMe
This HW RAID or HBA option can control up to 24 front-loading SAS/SATA drives in this server version, plus 2 rear-loading
SAS/SATA drives.
Connect a SAS/SATA cable from the small Slimline connector on the RAID card.
Connect a SAS/SATA cable to the Riser 3B connector on the PCE Riser 3 cage.
Connect a SAS/SATA cable from the second small Slimline connector on the RAID card.
Connect a SAS/SATA cable to the Riser 1B connector on the PCE Riser 1 cage.
Figure 2. SFF, 24-Drive UCSC-C240-M6SX Cabling With UCSC-RAID-M6SD
Cisco 12G Modular SAS RAID Controller or HBA For Up To 32 Drives (UCSC-RAID-M6HD)
LFF 12-Drives
This HW RAID or HBA option can control up to 12 front-loading SAS/SATA drives in this server version, plus 2 rear-loading
SAS/SATA drives, and up to 4 optional mid mount drives. This option is only supported for the LFF drive version of the server.
To connect the RAID card to the front-loading drives, connect the split cable (Y cable) as follows:
Connect the single end (1) of the SAS/SATA cable to the RAID card.
Connect each of the dual-end connectors (2 and 3) to the two front backplane connectors.
To connect the RAID card to the front drives and the mid-mount drives:
Connect one end of the SAS/SATA cable from the RAID card to the midplane connector.
To connect the rear drives:
Connect the SAS/SATA cable from the RAID card (6) to the Riser 1 connector (5).
Connect the SAS/SATA cable from the RAID card (7) to the Riser 3 connector (8) and the midplane connector (10).
For More RAID Utility Information
Cisco RAID Information
For embedded SATA support of drives connected to SATA through the SATA Interposer card, the drives are managed directly as
AHCI drives.
The Cisco HX C Series M6 storage adapter supports only SAS/SATA drives. Tri-mode support is not supported.
For basic information about RAID and for using the utilities for the RAID controller cards that are supported in Cisco servers,
see the Cisco UCS Servers RAID Guide.
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