Step 4: Set Termination - LSI MegaRAID SCSI 320-1 RAID Controller Series 520 Hardware Manual

6.2.3.8 J10 Termination Enable
6.2.4

Step 4: Set Termination

6.2.4.1 SCSI Termination
6-6
J10 is a three-pin header that specifies hardware or software control of
SCSI termination, as shown in
(jumper on pins 1 and 2) to allow the MegaRAID controller to
automatically set its own SCSI termination.
Table 6.4 Pinout for J10 Termination Enable
Type of SCSI Termination
Software control of SCSI termination using drive
detection (default).
Permanently disable all onboard SCSI termination.
Permanently enable all onboard SCSI 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.
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.
Hardware Installation
Copyright © 2002 by LSI Logic Corporation. All rights reserved.
Table 6.4. Leave at the default setting
J10 Setting
Short pins 1-2
Short pins 2-3
OPEN