Embedded Sata Raid Controller Considerations; Installing A Software Raid 5 Key Module For Embedded Raid 5 Support; Enabling The Embedded Sata Raid Controller In The Bios - Cisco UCS C220 M4 Installation And Service Manual

Appendix C RAID Controller Considerations

Embedded SATA RAID Controller Considerations

Note the following considerations:
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•
•
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Caution Data migration from software RAID (embedded RAID) to hardware RAID (a controller card) is not
supported and could result in data loss. Migrations from software RAID to hardware RAID are supported
only before there is data on the drives, or when there are no drives in the server (see
Migration, page
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Installing a Software RAID 5 Key Module for Embedded RAID 5 Support

The software RAID 5 key module contains a chip on a small circuit board. This module attaches to a
two-pin motherboard header. This chip upgrades support to add embedded SATA RAID 5 support.
To install a RAID 5 key module, see
Support, page

Enabling the Embedded SATA RAID Controller in the BIOS

The default setting in the BIOS for the embedded controller is disabled.
Note
When you enable this controller, both the primary (SATA) and secondary (sSATA) controllers are
enabled.
OL-32473-01
The default setting for this embedded controller hub is SATA RAID 0, 1, and 10 support for up to
eight SATA drives (in two groups of four drives).
You can upgrade to SATA RAID 0, 1, 5, 10 support for up to eight SATA drives (in two groups of
four drives) by installing a RAID 5 key module on the motherboard. See
5 Key Module for Embedded RAID 5 Support, page
When you order the server with this embedded controller, the controller is enabled in the BIOS.
Instructions for enabling the controller are included for the case in which a server is reset to defaults
(Disabled). See Enabling the Embedded SATA RAID Controller in the BIOS, page
You cannot downgrade from using a hardware RAID controller card to using the software RAID
embedded controller (see RAID Controller Migration, page
C-7).
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. See
Drivers For Windows and Linux, page
C-13.
C-13.
C-16.
Installing a Software RAID 5 Key Module for Embedded RAID 5
Cisco UCS C220 M4 Server Installation and Service Guide
Embedded SATA RAID Controllers
Installing a Software RAID
C-13.
C-7).
RAID Controller
Installing LSI MegaSR
C-13