IBM SCOD-3ZVQ5W - Manual (Page 139)

Chapter 10. xSeries 336 131
Figure 24. xSeries 336 system board
xSeries 336 internal cabling
Hot-swap SCSI models
xSeries 336 hot-swap SCSI models are cabled internally with a single, 1-drop LVD
SCSI cable, connecting the integrated single-channel Ultra320 SCSI controller to the
hot-swap backplane.
Simple-swap SATA
xSeries 336 simple-swap SATA models provide two point-to-point SATA cables
connecting the two integrated SATA controllers to the SATA simple-swap backplane.
A single IDE device is supported on the 3.5in SCSI HDD models and the simple-swap
SATA models. An IDE device is not supported on the 2.5in SCSI HDD models.
External SCSI attachment requires an optional SCSI controller be installed.