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3-10 MegaRAID SAS RAID Controller Characteristics
Copyright © 2009 by LSI Corporation. All rights reserved.
Figure 3.5 shows the jumpers and connectors on the SAS 9280-4i/4e
controller.
J1B1 x4 SAS Ports 0–3 SFF-8088 x4 external mini SAS
connector
Connects the cables from the controller
to SAS drives or SATA II drives, or a SAS
expander.
J6A1 Global Drive Fault LED
header
2-pin connector
Connects to an LED that indicates
whether a drive is in a fault condition.
J6A2 SAS Activity LED header 2-pin connector
Connects to an LED that indicates drive
activity.
J6A3 Write-pending Indicator
(dirty cache) LED
connector
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.
J6B1 Remote Battery Backup
Unit connector
20-pin connector
Connects the intelligent Battery Backup
Unit, LSIiBBU07, remotely to the RAID
controller.
J6B2 Battery Backup Unit
connector
20-pin connector
Connects the intelligent Battery Backup
Unit, LSIiBBU07, directly to the RAID
controller.
Table 3.4 SAS 9280-8e and SAS 9280DE-8e RAID Controllers –
Connectors (Cont.)
Connector Description Comments