Setting Up Scsi Devices; Connecting Scsi Devices - HP Tc2110 - Server - 128 MB RAM Installation And Configuration Manual

Chapter 1

Setting Up SCSI Devices

There are several things you may need to do to your SCSI devices before you
connect them to the HP Ultra3 SCSI host bus adapter:
·
Check the SCSI IDs
·
Set the termination
·
Connect the power cables
Since setup can vary from device to device, always refer to the device's
documentation for specific instructions.
Below are some guidelines for setting SCSI IDs and termination on your devices.
Check the SCSI IDs
The HP Ultra3 SCSI host bus adapter 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 ID
number. The HP Ultra3 SCSI host bus adapter is preset to SCSI ID 7 and should not
be changed. If your HP Server 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
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.

Connecting SCSI Devices

You can connect up to 15 SCSI devices to the HP Ultra3 SCSI host bus adapter.
Before connecting devices, be sure to review
Connecting the SCSI Host Adapter to the Common Tray
Connect internal Ultra3 SCSI devices to the internal LVD/SE connector on the HP
Ultra3 SCSI host bus adapter. Follow these steps to connect the devices:
1. Use a terminated twisted-pair SCSI cable.
2. Plug the non-terminated end of the twisted-pair cable to the internal LVD/SE
connector
6
(Figure 1-5).
Installation and Setup
"Setting Up SCSI Devices" on page 6.