Fujitsu RAID 0/1 SAS based on LSI MegaRAID User Manual page 57

Connectors
Connector Type
SAS MLC1 x4 SAS, ports 0 - 3
SAS MLC2 x4 SAS, ports 4 - 7
HDD activity
HDD LED
indication LED
FBU 1-6
RAID controller indicators
LED Description
L1 (HB) Heart Beat
L2 (SE0) Error for Power PC0
L3 (SE1) Error for Power PC1
TFM indicators
LED Description
L1 (green) Power available
L2 (blue) TFM / FBU status
L3 (yellow) Cache offload fault
Modular RAID Controllers
Modular RAID 6Gb/s (SAS2.0)
Description
SFF 8087 Mini SAS connector for SAS IO
cable to backplane and HDDs
SFF 8087 Mini SAS connector for SAS IO
cable to backplane and HDDs
6-pin connector
Pin 4 to connect activity LED
Connector on TFM to attach FBU
57