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DTA: Storage Devices
Storage Devices
General Notes on Drive Installation
Diskette and Tape Drives
CD ROM Drives
Hard-Disk Drives
General Notes on Drive Installation
Terminators
For non-SCSI devices, the general rule is that a terminator is present on the drive connected to the
first drive connector on the end of the interface cable. Exceptions to this rule are possible.
Always refer to the documentation for the drive being installed. Possible exceptions are:
 Drives with permanently installed terminators, which are disabled by means of jumpers.
Drives with terminators that are never removed or disabled.
SCSI devices, which have their own strict termination rules.
Jumpers and Switches
Drives may have jumpers or switches that must be set to reflect the configuration. Refer to the
documentation for the drive being installed. General guidelines for configuration jumpers/switches are
as follows:
Some diskette drives have jumpers that configure them as drive A or B.
When daisy-chaining IDE drives, configure one or both drives in order for the operating system to
differentiate between them.
All SCSI devices must be configured with a unique SCSI ID number.
Partitioning and Formatting Hard-Disk Drives
Physical (low-level) formatting divides the disk into concentric magnetic tracks, which in turn are
divided into storage segments called sectors. Physical formatting is rarely required; drives are shipped
already physically formatted.
If there is trouble with the hard-disk drive, run the appropriate diagnostic tests. See the Diagnostics
and Troubleshooting Guide for instructions.
If physical formatting is required, refer to the documentation that came with the SCSI adapter card.
IDE drives cannot be physically formatted.
Partitioning assigns the storage area to one or more logical drives. For the MS-DOS® operating
system, use fdisk.exe to partition the drive. For OS/2® or the UNIX® operating system, see the
documentation that came with the operating system.
Logically formatting the drive sets aside groups of sectors that store start-up information, directory
information, status information, and data. For MS-DOS, use format.exe to format the drive. For
OS/2 or the UNIX operating system, see the documentation that came with the operating system.
Diskette and Tape Drives
Drive Bay Locations and Cable Connections
To install a diskette, tape, or CD ROM drive, follow these steps:
NOTE: If installing a tape drive that came with its own adapter and interface cable, do not use the
system diskette/tape drive interface cable. Instead, install the adapter and interface cable supplied with
the drive, referring to the instructions provided with the drive.
1. Slide the drive into the selected drive bay. If necessary, remove the front-panel insert covering the
bay to be used.
2. Attach the DC power cable and the diskette/tape drive interface cable.
NOTE: If installing a dual-mode diskette drive, use the middle connectors on the interface cable.
3. Update the system setup program.
Set the DISKETTE DRIVE category to match the diskette drive being installed.
If a tape drive is being installed as the third drive, there is to update the system setup program.
If a tape drive is being installed as the second drive, the DISKETTE DRIVE B category should be set to
NOT INSTALLED.
4. Run the appropriate diagnostic tests. See the Diagnostics and Troubleshooting Guide for
instructions.
CD ROM Drives
1. Install a SCSI adapter (or the special CD ROM controller that came with the drive) in the
computer. If using a SCSI adapter, see the section on SCSI drives.
2. Slide the drive into the selected drive bay. If necessary, remove the front-panel insert covering the
bay to be used.
3. Attach the DC power cable and the SCSI or CD ROM interface cable.
4. Run the appropriate diagnostic tests. See the Diagnostics and Troubleshooting Guide for
instructions.
Hard-Disk Drives
The hard-disk drive bracket next to the power supply holds up to 2 half-height, 3.5-inch drives.
IDE Drives
To install an IDE hard-disk drive, follow these steps:
1. Install the drive in the drive bracket.
2. Attach the DC power cable and the IDE cable.
3. Update the system setup program. At the HARD-DISK DRIVE 1 category, select AUTO.
If a drive error message is received the next time the system is booted, the automatic drive-type
detection feature may not work with the drive. Highlight the appropriate hard-disk drive category, type
u for user, and enter the drive's parameters: cylinders (Cyls), heads (Hds), and sectors per track
(Sec).
4. Run the appropriate diagnostic tests. See the Diagnostics and Troubleshooting Guide for
instructions.
SCSI Drives
To install a SCSI hard-disk drive, follow these steps:
1. Install a SCSI adapter card in the computer.
2. Set the SCSI ID number for the drive being installed.
SCSI ID numbers range from 0 to 7. Each device on the SCSI bus, including the controller, must have its
own unique ID number.
There are no requirements that SCSI ID numbers be assigned sequentially or that devices be installed on
the SCSI cable in order of ID number.
A SCSI drive is usually assigned ID 0. If a SCSI drive will be used as the boot device, it must be
configured as ID 0.
If there is an IDE hard-disk drive installed, it will automatically be the boot device, regardless of
the ID number assigned to the SCSI drive(s).
3. Install or remove the SCSI bus termination on the drive.
Each end of the SCSI bus be terminated. Thus, if there is only an adapter card and one drive, each must
have termination installed. If there is an adapter card and two devices, the device in the middle of the
cable must have its bus termination removed.
4. Install the drive in the drive bracket.
5. Attach the drive's interface connector to the SCSI cable.
6. Update the system configuration information (in the system setup program).
Set the HARD-DISK DRIVE 1 and/or HARD-DISK DRIVE 2 system setup categories to AUTO.
7. Run the appropriate diagnostic tests. See the Diagnostics and Troubleshooting Guide for
instructions.
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