OpenEye GraniteRack 3U - Manual (Page 17)

Introduction
1-11
1.3.3 Terminators
Based on SCSI specifications, the SCSI bus must be terminated at both
ends, meaning the devices that are connected to the ends of the SCSI bus
must have their bus terminators enabled. Devices connected in the middle of
the SCSI bus must have their terminators disabled. Proper termination allows
data and SCSI commands to be transmitted reliably on the SCSI bus. The
host adapter and the SCSI devices attached to it must be properly
terminated, or they will not work reliably.
Termination means that terminators are installed in the devices at each end
of the bus. Some SCSI devices require you to manually insert or remove the
terminators. Other devices have built-in terminators that are enabled or dis-
abled via switches or software commands. Refer to the device’s documenta-
tion on how to enable or disable termination.
If your RAID subsystem is the last device on the SCSI bus, attach
the terminator included in the package to the Host Channel A & B
Out port before using the subsystem.