Table of Contents
Advertisement
Storage Controller Card Firmware Compatibility
Embedded RAID (PCH
SATA)
Cisco 12G Modular RAID
Controller with 2-GB cache
UCSC-RAID-M5
Includes 2-GB cache
Cisco 12G 9400-8e HBA for
external JBOD attach
UCSC-9400-8E
Cisco Boot-Optimized M.2
RAID Controller
UCS-M2-HWRAID
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 server.
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.
For supercap unit replacement instructions, see
Write-Cache Policy for Cisco 12G SAS Modular RAID Controller
For this server and other Cisco Generation M5 servers, the default write-cache policy for the Cisco Modular
RAID controller is Write Through (irrespective of the presence of a charged supercap or "good BBU"). This
utilizes the optimal performance characteristics of the controller.
Cisco Application Services Engine Hardware Installation Guide
92
This controller is supported only in
these server versions:
• All server versions can use the
embedded SATA controller to
control two internal SATA M.2
drives.
• 8 front-loading SATA drives (drive
bays 1 - 8)
This controller is supported only in
these server versions:
• 10 front-loading SAS/SATA drives
Supported in all server versions:
8 external SAS/SATA ports, controlling
up to 1024 external drives.
Controls two SATA M.2 drives that
mount to this controller.
0, 1, 10
No
Use SAS/SATA cable included
with chassis to connect interposer
board to drive backplane.
0, 1, 5, 6,
Yes
Use SAS/SATA cable included
10, 50, 60
with chassis to connect controller
to drive backplane.
Non-RAID
No
External drive cables not sold by
Cisco.
NOTE: This HBA does not
support optical cables for
connection to external storage
(copper only).
1
No
None. Controller connects to
motherboard socket.
Replacing the Supercap (RAID Backup), on page
Storage Controller Considerations
73.
Hide quick links:
Advertisement
Table of Contents
