LSI MegaRAID SAS User Manual

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 jumpers and the connectors on the MegaRAID SAS 9280-24i4e RAID controller. It
includes diagrams showing Pin1 and its orientation for several of the connectors.
Table 15 MegaRAID SAS 9280-24i4e RAID Controller – Connectors
Jumper/
Connector
Type Description
J1A2 Universal Asynchronous Receiver/Transmitter (UART)
for the expander
4-pin connector
Reserved for LSI use.
J1B1 LED Locate and Fault Indication header
Ports 0 to 3
Ports 4 to 7
2x8-pin connector
Connects to an LED array that indicates whether a drive is in
a fault condition. There is one LED per port. When lit, each
LED indicates the corresponding drive has failed or is in the
Unconfigured-Bad state.
The LEDs function in a direct-attach configuration (there are
no SAS expanders). Direct attach is defined as a maximum of
one drive connected directly to each port.
NOTE This header is used for RAID controllers with internal
SAS ports only.
J1B2 x4 SAS Ports 24 to 27 External connector SFF-8088 x4 external mini SAS connector
Connects the controller by cable to a SAS/SATA backplane or
an expander.
J1B3 Advanced Software Options Hardware Key header 2-pin header
Enables support for the Advanced Software Options
features, which include CacheCade, FastPath, Recovery, and
SafeStore disk encryption.
J1C1
IPMI-style I
2
C connector
3-pin connector
Supports SES (SCSI enclosure services) over I
2
C through an
internal I
2
C backplane cable.
J1L1 Remote Battery Backup connector (on the rear of the
controller)
20-pin connector
Connects an optional remote LSIiBBU07 intelligent Battery
Backup Unit or an LSIiBBU08 unit to the RAID controller.
J2B1 x4 SAS Ports 0 to 3 Internal connector SFF-8087 x4 internal mini SAS connector
Connects the controller by cable to SAS drives or
SATA 2 drives.
J2B2 x4 SAS Ports 4 to 7 Internal connector SFF-8087 x4 internal mini SAS connector
Connects the controller by cable to SAS drives or
SATA 2 drives.
J1B1
PORT 0
PORT 7
+ve
-ve
ak

LSI MegaRAID SAS Specifications

General

RAID Levels	0, 1, 5
Ports	8
Form Factor	Low Profile
Operating Systems Supported	Windows, Linux, VMware
SAS Ports	8
BBU Support	Optional
Operating Temperature	0°C to 55°C