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
The following table describes the connectors on the MegaRAID SAS 9285CV-8e RAID controller.
Table 17 MegaRAID SAS 9285CV-8e RAID Controller – Connectors
Jumper/
Connector
Type Description
J1A1 Write-Pending LED header 2-pin connector
Connects to an LED that indicates when the data in the
cache has yet to be written to the storage devices. Used
when the write-back feature is enabled.
J1A3 Global Drive Fault LED header 2-pin connector
Connects to an LED that indicates whether a drive is in a
fault condition.
J1A4 x4 SAS Ports 4 to 7 External connector SFF-8088 x4 external mini SAS connector
Connects the controller by cable to SAS drives or SATA drives.
J1B1 x4 SAS Ports 0 to 3 External connector SFF-8088 x4 external mini SAS connector
Connects the controller by cable to SAS drives or SATA drives.
J2A1 Activity LED header 2-pin connector
Connects to an LED that indicates activity on the drives
connected to the controller.
J2A2 Advanced Software Options Hardware Key header 3-pin header
Enables support for the Advanced Software Options
features, which include CacheCade, FastPath, Recovery, and
SafeStore disk encryption.
J2A4
I
2
O Mode jumper
2-pin connector
Installing this jumper causes the RAID controller to run in I
2
0
mode. The default mode of operation is without the shunt
and running in Fusion mode.
J2B1 Standard Edge Card connector The RAID controller interfaces with the host system though a
standard edge card.
This interface provides power to the board and an I
2
C
interface connected to the I
2
C bus for IPMI.
J4A1 Serial EEPROM 2-pin connector
Provides controller information, such as the serial number,
revision, and manufacturing date. The default is no
shunt installed.
J4A2 LSI Test header 2-pin connector
Reserved for LSI use.
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