Fujitsu RAID 0/1 SAS based on LSI MegaRAID User Manual page 40

Modular RAID 6Gb/s (SAS2.0)
Connectors
Connector Type
SAS MLC1 x4 SAS, ports 0 - 3 SFF 8087 Mini SAS connector for SAS IO
SAS MLC2 x4 SAS, ports 4 - 7 SFF 8087 Mini SAS connector for SAS IO
HDD LED HDD activity
indication LED
iBBU 1-20
Figure 12: HDD LED connector
Indicators
LED Description
L1 (HB) Heart Beat
L2 (WP) Write in cache pending
L3 (WA) Warning
40
Description
cable to backplane and HDDs
cable to backplane and HDDs
8-pin connector
Pin 6 to connect activity LED
Connector to attach remote iBBU
2 4 6 8
1 3 5 7
Modular RAID Controllers