Installation guide

SCSI Termination
2-2 AcceleRAID Installation Guide
SCSI Termination
Correct termination is critical for the SCSI channels. Termination on the end
of the cable connecting the disk drives (or other SCSI devices) is required.
If an AcceleRAID 250 is installed, the controller’s termination is
automatically set.
AcceleRAID 200 Termination
The system board contains the SCSI I/O chips and termination used by the
AcceleRAID controller. Refer to the instructions and/or specifications
furnished with the system board for information regarding how termination
is implemented.
See Figure 2-2 for an example of terminating an internal – external drive
configuration.
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Note
For purposes of this discussion, it is assumed that the
illustrated internal and external connectors are both on
the same SCSI channel.
It is better to terminate the ends of the SCSI bus itself
than it is to terminate the end devices on the bus. This
allows hot swap devices to be added or removed from
the SCSI bus without affecting termination.