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Step 5 set termination – Toshiba Magnia 560S User Manual

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Installation Steps

64

Hardware Installation

Step 5 Set Termination

You must terminate the SCSI bus properly. Set termination at both ends of the SCSI
cable. The SCSI bus is an electrical transmission line and must be terminated properly
to minimize reflections and losses.

For a disk array, set SCSI bus termination so that removing or adding a SCSI device
does not disturb termination. An easy way to do this is to connect the card to one end of
the SCSI cable and to connect a terminator module at the other end of the cable. The
connectors between the two ends can connect SCSI devices. Disable termination on the
SCSI devices. See the manual for each SCSI device to disable termination.

SCSI Termination

The SCSI bus is an electrical transmission line and it must be terminated properly to
minimize reflections and losses. You complete the SCSI bus by setting termination at
both ends.

You can let the card automatically provide SCSI termination at one end of the SCSI bus.
You can terminate the other end of the SCSI bus by attaching an external SCSI
terminator module to the end of the cable or by attaching a SCSI device that internally
terminates the SCSI bus at the end of the SCSI channel.

Selecting a Terminator

Use standard external SCSI terminators on a SCSI channel operating at 10 MB/s or
higher synchronous data transfer.

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