Seagate STD224000N - DAT Scorpion 24 Tape Drive Manuel utilisateur

Seagate DAT Drive Installation Manual

English

Seagate DAT Drive Installation Manual

Contents

FCC notice

Introduction 1

Before you begin 1

SCSI cables and connectors 2

Installing an internal DAT drive 3

Configuring an internal DAT drive 3

Mounting an internal DAT drive 10

Connecting power and interface cables 10

Installing an external DAT drive 11

Configuring an external DAT drive 11

Connecting the SCSI interface cable 12

Connecting the power cord 13

Operating and maintaining a DAT drive 14

LED codes 14

Loading a cartridge 17

Unloading a cartridge 18

Initializing a blank DAT cartridge 18

DAT cartridge compatibility 19

Write-protecting a DAT cartridge 20

Cleaning the tape heads 20

Technical support 22

Seagate DAT Drive Installation Manual

FCC notice

This equipment generates and uses radio frequency energy and, if not

installed and used in strict accordance with the manufacturer's

instructions, may cause interference to radio and television reception,

which could void the user's authority to operate the equipment. It has

been tested and found to comply with the limits for a Class B digital

device pursuant to Part 15 of FCC Rules, which are designed to provide

reasonable protection against such interference in a residential

installation. However, there is no guarantee that interference will not

occur in a particular installation. If interference does occur, try to

correct it by taking one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the computer and the receiver.

• Connect the computer into an outlet on a circuit different from that

to which the receiver is connected.

• Consult the dealer or an experienced radio/television technician for

help.

You may find the following booklet prepared by the Federal

Communications Commission helpful: How to Identify and Resolve

Radio–TV Interference Problems. This booklet (Stock No. 004-000-

00345-4) is available from the U.S. Government Printing Office,

Washington, DC 20402. Further, this equipment complies with the

limits for Class B digital apparatus in accordance with Canadian Radio

Interference Regulations.

Cet appareil numérique de la classe B est conforme au Règlement sur

brouillage radioélectrique, C. R. C., ch. 1374.

Seagate Publication 10002664-005, July 1997

Seagate DAT Drive Installation Manual

Introduction

This installation manual contains information on how to

install and operate Seagatedigital audio tape (DAT)

drives. This manual covers DAT drives that support the

DDS (digital data storage), DDS-DC (digital data storage

data compression), DDS-2 and DDS-3 tape formats.

The following table identifies the Seagate DAT drive

models covered by this manual and the tape formats that

they support.

Format DDS DDS-DC DDS-2 DDS-3

Capacity 2 Gbytes 4* Gbytes 8* Gbytes 24* Gbytes

3.5-inch

internal

models

4320NT

CTD2004H-S

STD12000N

4324NP

CTD4004H-S

STD14000N

4326NP

CTD8000H-S

STD18000N

STD124000N

5.25-inch

internal

models

4320RT

CTD2004R-S

STD22000N

4324RP

CTD4004R-S

STD24000N

4326RP

CTD8000R-S

STD28000N

STD224000N

External

models 4350XT

CTD2004E-S

STD62000N

4324XP

CTD4004E-S

STD64000N

4326XP

CTD8000E-S

STD68000N

STD624000N

* Typical capacity, assuming 2:1 data compression. Native capacity is

one half these values.

Before you begin

!Caution. To avoid data loss, you must clean the

drive heads using a DDS head-cleaning cartridge

after every 25 hours of read/write operation and

whenever the green, cartridge-status LED flashes

during operation.

Seagate DAT Drive Installation Manual

!Caution. Observe the following precautions to

avoid electrostatic damage to your internal tape

drive.

• Do not remove the drive from the antistatic bag until

you are ready to install it.

• Before you remove the drive from the antistatic bag,

touch a grounded metal surface to discharge any static

electricity buildup from your body.

• Hold the drive only by its edges and avoid direct

contact with any electronic components.

• If you need to put down the drive, lay it on top of the

antistatic bag or place it inside the bag.

SCSI cables and connectors

These DAT drives support connection to a standard,

single-ended SCSI or SCSI-2 interface. A 50-conductor flat

cable or a 25-signal twisted-pair cable may be used to

connect the drive to its SCSI host adapter. The cable

should not be longer than 6 meters (19.5 feet).

The internal DAT drive provides a 50-pin, right-angle,

dual-row single-ended SCSI connector attached to the

main PCB at the back of the drive.

The external DAT drive provides two 50-pin, shielded

connectors (ANSI Alternative 2) on the rear panel of the

drive. These connectors consist of two rows of ribbon

contacts spaced 2.16 mm (0.085 in) apart. Either

connector can be used as a SCSI IN or SCSI OUT

connection.

➤ Note: If the DAT drive is the last device in the chain

(or the only device), an external terminator must be

plugged into the unused SCSI connector. To order

terminators through Seagate Express, ask for Seagate

part number 38-9-74000000.

Seagate DAT Drive Installation Manual

Installing an internal DAT drive

Internal drive installation involves three main steps:

1. Configuring the drive

2. Mounting the drive

3. Connecting power and interface cables

Internal DAT drives come in two configurations, for

mounting in 3.5-inch or 5.25-inch drive bays, respectively.

Except for mounting the drive, installation procedures are

the same for both types of drives.

Configuring an internal DAT drive

Before you install the tape drive in your computer, you

may need to configure the drive’s SCSI ID or other drive

features. Most features are set using a bank of dip-

switches on the underside of the drive. To control SCSI

termination and terminator power or to configure the

drive for remote SCSI address selection, use the jumpers

on the back of the drive (beneath the interface and power

connectors).

Dip-switch settings

Figures 1 and 2 on page 4 show the location of dip

switches on the underside of 3.5-inch and 5.25-inch

internal drives, respectively. You can access the

switchbank through a rectangular cutout in the drive

shell.

➤ Note. DDS-3 drives have two additional reserved dip

switches on each switchbank. These reserved switches

are not shown in Figures 1 and 2.

Seagate DAT Drive Installation Manual

Figure 1

Location of switchbank—3.5-Inch DAT drive

(drive is upside down)

Power

Connector

Pin 1

Jumper

Block SCSI

Connector

Figure 2

Location of switchbank—5.25-Inch DAT drive

(drive is upside down)

Power

Connector

Pin 1

Jumper

Block

SCSI

Connector

Seagate DAT Drive Installation Manual

Factory-default settings for each switch are shown in

Figure 3 (only DDS-3 drives have switches S9 and S10).

These settings are described in detail on the following

pages.

Figure 3

Default dip-switch settings

Inquiry

String

S2S3S4S5S6

OFF

DDS Pass-

through

Self-test

OFF

Parity MRS

Mode

Disable

Enable

Archive

Seagate

DDS-DC

DDS

Disable

Enable

MRS

All

SCSI ID Selection SCSI ID

OFF

S10

Reserved

(do not use)

➤ Note.

The drive must be turned OFF then ON or a

SCSI Bus Reset must be received for switch settings to

take effect.

The default dip switch settings for this drive are listed

below:

• SCSI ID 0

• The drive reads or writes both MRS and non-MRS

4-mm media.

• Parity checking is disabled.

• DDS-DC data compression is enabled (applies only to

models that support data compression).

• Seagate inquiry string is enabled.

• Power-on self-test diagnostics are disabled.

If these default settings are appropriate for your computer

system and you do not need to enable SCSI termination

for this drive, then turn to “Mounting an internal DAT

drive” on page 10.

Seagate DAT Drive Installation Manual

SCSI ID switches (switches S1 through S3)

The three switches S1 through S3 correspond to the SCSI

device address identification bits 0 (LSB) through 2

(MSB), respectively.

➤ Note.

Each SCSI device on a bus must have a unique

SCSI ID. The SCSI host controller generally uses

ID 7. In some systems, the boot drive uses ID 0.

Media-recognition system (switch S4)

The media-recognition system allows the drive to detect

DDS cartridges that support this feature. Use of non-DDS

media may appear to give satisfactory results, but the

inferior specifications of such media can cause data-

integrity problems.

The S4 switch enables or disables media-recognition

system (MRS) mode. If S4 is ON, the drive reads or writes

both MRS and non-MRS 4-mm media. If S4 is OFF, the

drive reads and writes to MRS media and reads from but

does not write to 4-mm media.

Parity check enable/disable (switch S5)

The S5 switch enables or disables parity checking for the

SCSI bus. When parity checking is disabled, parity is still

generated by the drive.

If switch S5 is on, parity checking is enabled. The default

setting is parity checking disabled (S5 set to off).

DDS pass-through mode enable/disable (switch S6)

If switch S6 is on, DDS pass-through is enabled (data

compression is disabled).

➤ Note. The function of the S6 switch can be overridden

by the proper SCSI MODE SELECT command issued

from the host computer.

Inquiry string (switch S7)

The S7 switch is used to set the inquiry string used by the

drive. It should be left in its factory-default setting (ON).

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