Dell PowerEdge 1750 Troubleshooting Guide download pdf (Page 63)

If you are attaching multiple external SCSI devices, daisy-chain the devices using the cables shipped with each device.

4. Reconnect the system to an electrical outlet and turn it on.

5. Connect the external device(s) to electrical outlet(s) and turn them on.

6. Install any required SCSI device drivers. See "Installing and Configuring SCSI Drivers" in the User's Guide.

7. Test the SCSI devices.

Connecting an External SCSI Tape Drive

This subsection describes how to configure and install an external SCSI tape drive with an add-in PCI controller card.



1. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.

2. Ground yourself by touching an unpainted metal surface on the back of the system, unpack the drive, and compare the jumper and switch settings with

those in the documentation that came with the drive.

3. Unpack the tape drive and controller card and configure the tape drive according to the documentation that came with the tape drive, based on the

following guidelines:

a. Each device attached to a SCSI host adapter must have a unique SCSI ID number. (Narrow SCSI devices use IDs 0 to 7; wide SCSI devices use

IDs from 0 to 15).

A SCSI tape drive is typically configured as SCSI ID 6.



b. SCSI logic requires that the two devices at opposite ends of a SCSI chain be terminated and that all devices in between be unterminated.

Therefore, you enable the tape drive's termination if it is the last device in a chain of devices (or sole device) connected to the SCSI controller.

4. Install the controller card in an expansion slot. See "Installing Expansion Cards" in "Installing System Options."

5. Connect the tape drive's interface/DC power cable to the connector on the controller card supplied with the tape drive.

6. Reconnect the system and peripherals to their electrical outlets, and turn them on.

7. Perform a tape backup and verification test with the drive as instructed in the software documentation that came with the drive.

Configuring the Boot Device

If you plan to boot the system from a hard drive, the drive must be attached to the primary (or boot) controller. The device that the system boots from is

determined by the boot order specified in the System Setup program.

The System Setup program provides options that the system uses to scan for installed boot devices. See your system's User's Guide for information about the

System Setup program.

Back to Contents Page



NOTE: The integrated SCSI controller does not support mixed mode (one channel SCSI and one channel RAID). For this reason, in a system with RAID,

Dell does not support an external tape drive connected to the external SCSI controller.

CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. See

your System Information Guide for complete information about safety precautions, working inside the computer, and protecting against

electrostatic discharge.

NOTE: There is no requirement that SCSI ID numbers be assigned sequentially or that devices be attached to the cable in order by ID number.

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Dell PowerEdge 1750 Troubleshooting Guide Page 63

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