LSI Corporation
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6Gb/s MegaRAID SAS RAID Controllers User Guide
August 2012
Chapter 3: MegaRAID SAS RAID Controller Characteristics
6Gb/s MegaRAID SAS RAID Controller Family
3.1.6 MegaRAID SAS 9270 RAID Controller
The MegaRAID SAS 9270-8i low-profile SAS/SATA disk array controller controls eight internal SAS/SATA ports through
two SFF-8087 mini-SAS 4i internal connectors.
3.1.6.1 MegaRAID SAS 9270-8i RAID Controller – Board Layout and Jumper/Connector Information
This subsection provides the board layout, and the connector and jumper information for the MegaRAID SAS 9270-8i
RAID controller. The following figure shows the location of the jumpers and the connectors on the MegaRAID
SAS 9270-8i RAID controller. The jumpers are set at the factory, and you usually do not need to change them.
Figure 17 Layout of the MegaRAID SAS 9270-8i RAID Controller
J6B2 SBR Bypass header 2-pin connector
Lets you bypass the SBR EEPROM during boot in case the EEPROM
contents are corrupt or missing.
J6B3 Global Activity LED header 2-pin header
Connects to a single LED that indicates drive activity on
either port.
J6B4 Onboard Serial Universal Asynchronous
Receiver/Transmitter (UART) connector
4-pin connector
Reserved for LSI use.
J6B5 Global Drive Fault LED indicator 2-pin header
Connects to a single LED that indicates drive activity on
either port.
J6B6 Onboard Serial Universal Asynchronous
Receiver/Transmitter (UART) connector
4-pin connector
Reserved for LSI use.
NOTE Pin 1 on the headers and connectors is highlighted in red in the previous figure.
Table 10 MegaRAID SAS 9266 RAID Controllers – Jumpers and Connectors (Continued)
Jumper/
Connector
Type Description
85079-00
J2B1 J2B2
J1A1
J1A2
J1A3
J1A4
J1A5
J1A7
J2B3
J2B4
J5B1
J5A1
J6A1