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Cisco UCS C22 Server Installation and Service Guide
OL-26646-01
AppendixC RAID Controller Considerations
Embedded RAID Controller
Disabling the Embedded RAID Controller in the BIOS
Caution Data migration from SW RAID to HW RAID is not supported and could result in data loss. Migrations
from SW RAID to HW RAID are supported only before there is data on the drives, or the case in which
there are no drives in the server.
If you change from using this embedded controller to a RAID controller card, you must disable the
embedded controller in the server BIOS.
Note The embedded RAID controller uses different cables than the PCIe card controllers. See Supported
RAID Controllers and Required Cables, pageC-2 and RAID Controller Cabling, page C-18.
Use the following procedure to disable the LSI MegaSR drivers.
Step1 Boot the server and press F2 when prompted to enter the BIOS Setup utility.
Step2 Select the Advanced tab, then South Bridge.
Step3 Set Onboard SATA Controller to Disabled.
Step4 Press F10 to save your changes and exit the utility.
Launching the LSI Embedded RAID Configuration Utility
Launch the utility by pressing Ctrl+M when you see the prompt during system boot.
For more information about using the Embedded MegaRAID software to configure your disk arrays, see
the LSI Embedded MegaRAID Software User Guide.
Installing LSI MegaSR Drivers For Windows and Linux
Note The required drivers for this controller are already installed and ready to use with the LSI SWRAID
Configuration Utility. However, if you will use this controller with Windows or Linux, you must
download and install additional drivers for those operating systems.
This section explains how to install the LSI MegaSR drivers for the following supported operating
systems:
•Microsoft Windows Server
•Red Hat Enterprise Linux (RHEL)
•SuSE Linux Enterprise Server (SLES)
For the specific supported OS versions, see the Hardware and Software Interoperability Matrix for your
server release.
This section contains the following topics: