Embedded Sata Raid: Two Sata Controllers - Cisco UCS C240 M4 Installation And Service Manual

Appendix C RAID Controller Considerations

Embedded SATA RAID: Two SATA Controllers

The embedded RAID Patsburgh controller hub (PCH) is split into two controllers: SATA and sSATA
(secondary SATA). These two controllers are seen as separate RAID controllers in the Cisco IMC
interface and are configurable separately.
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Figure C-2
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Note
OL-32474-01
The first SATA controller controls drives 1–4; the secondary sSATA controller controls drives 5–8.
When configuring RAID groups, you cannot create a group that spans more than four drives.
– The first SATA controller can control a RAID group of up to four drives, comprised only of
drives 1–4.
– The secondary sSATA controller can control a RAID group of up to four drives, comprised only
of drives 5–8. See Figure
Embedded RAID Controller Drive Groups
HDD01 HDD02
HDD03 HDD04
HDD05 HDD06
HDD07 HDD08
PCH
SATA
sSATA
See Enabling the Embedded RAID Controller in the BIOS, page C-11
the two SATA controllers.
Each controller is listed separately in the BIOS. You can select the boot order of the controllers in
the BIOS (use the Boot Options tab in the BIOS Setup Utility).
To set the boot order for virtual drives, use the LSI Embedded RAID Configuration Utility. See
Launching the LSI Embedded MegaRAID Configuration Utility, page
C-2.
Cisco UCS C240 M4 Server Installation and Service Guide
Embedded SATA RAID Controller
for instructions on enabling
C-11.
C-9