Adaptec 19160, Руководство по установке

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5
Adaptec SCSI Card 19160
There are several things you may need to do to your SCSI devices
before you connect them to the Adaptec SCSI Card 19160:
•
Check the SCSI IDs
•
Terminate the Ends
•
Mount the Devices
Since setup can vary from device to device, always refer to the
device’s documentation for specific instructions.
Below are some guidelines for checking SCSI IDs, setting termi-
nation, and mounting devices in your computer. Refer to the
Adaptec SCSI Card 19160 User’s Reference for more information
on these topics.
Check the SCSI IDs
The Adaptec SCSI Card 19160 and each device you connect to it
must have a unique SCSI ID number ranging from 0 to 15.
No two devices can have the same number.
The Adaptec SCSI Card 19160 is preset to SCSI ID 7 and should
not be changed. If your computer will boot from a SCSI hard
disk, make sure the SCSI ID of that hard disk is set to 0. (Most
SCSI hard disks are preset to SCSI ID 0 at the factory.)
The SCSI IDs for internal devices are usually set with jumpers;
SCSI IDs for external devices are usually set with a switch on the
back of the device.
Terminate the Ends of the SCSI Bus
To ensure reliable communication on the SCSI bus, the device at
the end of each cable, or the end of the cable itself, must have a
terminator installed (or enabled). Terminators must be removed,
or termination must be disabled, on devices between the ends of
each cable.
Terminating LVD (Ultra160 and Ultra2) SCSI Devices
LVD SCSI devices are automatically un-terminated. If you have
internal LVD SCSI devices, a special 68-pin internal LVD cable is
required to connect the devices. Internal LVD cables usually have
S
ETTING
U
P
SCSI D
EVICES
ASC-19160_IG.book Page 5 Wednesday, December 1, 1999 12:47 PM