Hp DDS-2 User’s Guide

HP DDS-2 T

User’s Guide

ape Drive



Workstation Systems Group

Order No. A1658–90689

Edition E0296

Printed in U.S.A.

 Hewlett-Packard Co. 1996

First Printing: February 1996

UNIX

is a registered trademark in the United States and other countries, licensed exclusively

X/Open Company Limited.

NOTICE

The information contained in this document is subject to change without notice.

HEWLETT–PACKARD MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS
MATERIAL INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Hewlett-Packard shall

be liable

not
the furnishing, performance or use of this material.

for errors contained herein or for incidental or consequential damages in connection with

through

Hewlett-Packard
not furnished by Hewlett-Packard.

This

document contains proprietary information which is protected by copyright. All rights reserved.

No

part of

this document may be photocopied, reproduced or translated to another language without the

prior written consent of Hewlett-Packard Company.

RESTRICTED RIGHTS LEGEND. Use, duplication, or disclosure by government is subject to
restrictions
Clause at DFARS 252.227.7013. Hewlett-Packard Co., 3000 Hanover St., Palo Alto, CA 94304.

10 9 8 7 6 5 4 3 2 1

assumes no responsibility for the use or reliability of its software on equipment that is

as set forth in subdivision (c) (1) (ii) of the Rights in T

echnical Data and Computer Software

Contents

Preface

Audience vii.
Safety and Regulatory Statements vii
Installation Notice viii
Related Manuals

Revision Historyix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Questions and Problemsix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Documentation Conventionsx. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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Chapter 1 Introduction

General Description 1–2.
Major Features of DDS Drives 1–3

DDS-DC Drive 1–3
DDS-2 Drive 1–4
DDS-2 Drive Environmental Requirements 1–4
DDS-2 Drive Physical Specifications 1–5

Preparing to Install the DDS-2 Drive 1–6

T

ools Required
Verifying Kit Contents 1–6
Operating System Support 1–6
Setting the SCSI-2 Address 1–7
Address Jumpers

Preparing the System 1–11

SCSI-2 Connection and Termination 1–13

Powering Off the Workstation and any Peripherals 1–14
Adding or Removing the DDS-2 Drive Bezels or Expansion Brackets 1–15

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viii

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iii

Contents

Chapter 2 Using Your DDS Drive

Your DDS-2 Drive Configuration 2–2.
Controls and Features of the DDS-2 Drive 2–2

LEDs 2–3

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Data Cassettes

Media Life 2–3
Cleaning the T
Media Restrictions
Setting the Write-Protect T

Using the DDS-2 Drive 2–6

Loading and Unloading a Data Cassette 2–6
Verifying the DDS-2 Tape Drive Operation 2–7
Media Interchangeability Restrictions
Ordering Information 2–8

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ape Heads

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ab on a Data Cassette

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Chapter 3 Troubleshooting and Removal/Replacement Procedures

Troubleshooting 3–1.

Checking the Address Settings for Single-Ended Drives 3–2
Checking the Hardware Installation 3–4
Rechecking the Address Settings
Verifying the System Operation using SupportWave 3–6

Removal/Replacement Procedures

Field Replaceable Units
Powering Off the System 3–9
Removing and Replacing the DDS-2 Drive 3–10
Adding or Removing the DDS-2 Drive Bezels and Expansion Brackets 3–10

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2–3

2–4
2–4
2–4

2–8

3–5

3–9
3–9

iv

Contents

Appendix

A

Safety and Regulatory Statements

Emissions

Emissions Regulations Compliance
Electrostatic Discharge (ESD) Precautions A–4

Regulations

Federal Communications Commission (FCC)
Canadian Department of Communications (CDC) A–2

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Appendix B SCSI Connector Pinnouts

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . .

A–2.
A–2

A–3

v

Contents

Figures

Table

1–1. HP DDS-2 Drive 1–2.
1–2. HP DDS-2 Drive Physical Specifications 1–5
1–3. Rear View of DDS-2 Drive and SCSI Address/Jumper Settings 1–9
1–4. Switch Settings for Data Compression Operation Mode 1–10
1–5. Adding a Bezel to the DDS-2 Drive 1–16
1–6. Removing a Bezel from the DDS-2 Drive 1–16
1–7. Adding or Removing Expansion Brackets 1–16

2–1. DDS-2 Drive Controls and Indicators 2–2
2–2. Setting the Write-Protect Tab on a DDS Tape 2–5
2–3. Loading a Data Cassette 2–6

3–1. Adding a Bezel to the DDS-2 Drive 3–11
3–2. Removing a Bezel from the DDS-2 Drive 3–11
3–3. Adding or Removing Expansion Brackets 3–12

2–1. LED Display Codes 2–3

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vi

Preface

The HP DDS-2 T
HP DDS-2 tape drive.

We’ve organized this guide as follows:

Chapter 1 Provides a general description of the drive and the procedures for

Chapter 2 Describes the drive configurations, the controls and features of the drive,

Chapter 3 Provides information on caring for DDS tapes, troubleshooting

Appendix A Provides safety and regulatory information.

Appendix B Lists the pinnouts for the SCSI connector on the drive.

Audience

This guide is intended for use by anyone familiar with the the HP workstations who
wants to install and configure the DDS drive.

ape Drive User’s Guide

installing it into a system.

and provides directions for using it.

information, and removal/replacement procedures for the drives.

describes how to install, configure, and use the

Safety and Regulatory Statements

See Appendix A for the safety and regulatory statements that apply to the HP DDS-2
drive.

vii

Preface

Installation Notice

Products designated in the applicable Hewlett-Packard price list as customer-installable
can be installed by computer-knowledgeable customers who carefully read and follow the
instructions provided. Customers who elect to have the product installed by our field
personnel are charged the applicable field installation charge, as covered under the
standard terms and conditions. For more information, please contact your local sales
representative.

Related Manuals

For more information, refer to the following documents:

• The Owner’s Guide that came with your system

• HP-UX Installing Peripherals: HP 9000 Series 700 (B2355–90006)

viii

• Using Your HP Workstation (A2615–90003)

• HP V

• System Administration T

isual User Envir

onment User

asks HP 9000 Series 700 Computers

’s Guide (B1171–90061)

(B2355–90040)

• Using HP-UX (B2910–90001)

Documents specific to HP DDS drives:

• Integration Guide, Vol 2 of HP DDS Technical Manual (C1533–90906)

• The SCSI Interface, Vol 3 of HP DDS Technical Manual (C1533–90907)

• Background

• HP

Contact your HP supplier for copies.

DDS Configuration Guide

to DDS Pr

oducts

, V

ol 4 of HP DDS T

, V

ol 5 of HP DDS T

echnical Manual (C1533–90908)
echnical Manual

(C1533–90915)

Revision History

The revision history for each edition of the manual is listed below:

Preface

Edition
E0296 First Printing.

Revision History

Questions and Problems

If you have any questions or problems with our hardware, software, or documentation,
please contact either your HP Response Center or your local HP representative.

ix

Preface

Documentation Conventions

Unless otherwise noted in the text, this guide uses the following symbolic conventions:

literal values Bold words or characters in formats and command descriptions

represent commands that you must use literally. Pathnames are
also in bold.

user-supplied Italic words or characters in formats and command descriptions
values represent values that you must supply. Italics are also used in

text for emphasis.

screen display Information that the system displays appears in this typeface.

Return

A rectangle with rounded corners and a key label denotes a key on
your keyboard. (In this manual we refer to the Return key. On
your keyboard the key may be labeled either Return or Enter.)

This symbol indicates the end of a chapter or part of this guide.

x

Chapter 1

Introduction

This document describes the HP DDS-2 (HP model number C1533A) drive, its
installation, operation, troubleshooting, and removal/replacement procedures.

This chapter introduces the DDS-2drive and contains the following information:

• General description of the drive

• Major features of the drive

• Preparing to install the drive

• Preparing the system

• Powering off the workstation and any peripherals.

• Adding or removing the DDS-2 drive bezels or expansion brackets

1–1

Introduction

General Description

The HP DDS-format drives have been developed by Hewlett Packard for data storage
drives that build on DAT technology. The DDS-2 drive has 4-GB native capacity,
yielding up to 8 GB of stored data and has data compression functionality. Figure 1–1
shows the DDS-2 drive.

1–2

Figure 1–1. HP DDS-2 Drive

Major Features of DDS Drives

The DDS-1 format incorporates error correction techniques used in audio DAT drives
with additional techniques specifically designed to provide the integrity of data necessary
for computer use. These extra methods of error detection and correction are as follows:

Introduction

• C3

ECC, a third level of Error Correction Code providing correction across frames

within groups.

• Read-After-Write, where data is verified immediately after it is written and re-

written if there is any error.

•

Data Randomizer
level. This enables read-after-write to be effective.

, for recording the data in order to provide a consistent signal

• Track Checksums, for detecting and locating helical errors, and so improving the

performance of C3 ECC.

• N-Group

setting for N is 1.

Each tape can be formatted as a single data space, or as two partitions that can be written
to independently.

W

riting, where every group is repeated a set number of times. The default

DDS-DC Drive

The HP Model C1536A implements the DDS-DC format. This includes all of the features
of the DDS-1 format, plus an extension to include data compression as follows:

• Compressed data can be stored in a way that maintains the full functionality of

the DDS format and ensures backwards compatibility with existing DDS drives.

• Any DDS-1 and DDS-DC cartridge can be read, whether data compression is

switched on or off.

• Data

is automatically decompressed on reading even if data compression is switched

off.

• Mixing compressed and uncompressed data is supported. This means that a car-

tridge can be written with uncompressed data and read in any DDS drive.

1–3

Introduction

DDS-2 Drive

The HP C1533A implements the DDS-2 format. This includes all of the features of the
DDS-1 and DDS-DC formats, plus the ability to read and write with much higher
capacity as follows:

DDS-2 Drive Environmental Requirements

The DDS-2 drive has the following environmental requirements:

• Reads and writes using DDS-1 and DDS-DC formats when using DDS-1 media

(60 m and 90 m). Has all of the features of the DDS-1 and DDS-DC formats.

• Reads and writes with much higher capacity when using DDS-2 media (120 m).

• Ambient Temperature

Operating 5_ C to 40_ C

(41_ F to 104_ F)

Non-Operating –40_ C to 70_ C

(–40_ F to 158_ F)

1–4

• Altitude

Operating 0 km to 4.6 km (0 to 15,000 ft)
Non-Operating 0 km to 15.2 km (0 to 50,000 ft)

• Humidity

Operating 20% to 80%RH (non-condensing)
Non-Operating 5% to 95%RH (non-condensing)

Maximum wet bulb temperature = 26_ C

Introduction

DDS-2 Drive Physical Specifications

The following illustration describes the physical specifications of the DDS-2 drive.

41.3 mm

+++

+/– 0.6

4 mm

101.6 mm
+/– 0.3

21 mm
+/– 0.2

41.3 mm

+/– 0.3

30.9 mm
+/– 0.2

60 mm

+/– 0.2

90 mm
+/– 0.2

101.6 mm +/– 0.3

150 mm +/– 0.3

5 mm

+/– 0.3

++

94 mm
+/– 0.2

++

70 mm

+/– 0.2

3.8 mm

+/– 0.3

Figure 1–2. HP DDS-2 Drive Physical Specifications

1–5

Introduction

Preparing to Install the DDS-2 Drive

The following information describes how to prepare the DDS-2 drive for installation.

Tools Required

The following tools are needed to install the DDS-2 drive:

• #2 Phillips screwdriver

• Small needle-nose pliers

Verifying Kit Contents

Verify that the kit contains one of each of the following:

• DDS-2 drive (part numbers 0950–3002 for 5 1/4-in drive, or

0950–3028 for 3 1/2-in drive)

1–6

• Set of 4 screws (M4x6)

• Power adapter cable

• SCSI I/O cable

• Static strap

• HP DDS-2 T

NOTICE: If any contents of your kit are missing, contact your sales

representative.

Operating System Support

The HP DDS-2 drive supports HP-UX 9.05 and later. This drive requires the following
HP-UX patches (or their replacements): PHKL_6050 and PHSS_6142. Both patches are
for OS versions 9.x only and cannot be used on any 10.x OS versions.

ape Drive User’s Guide

(A1658–90689)

Setting the SCSI-2 Address

Introduction

The DDS-2 drive must have a unique SCSI-2 target address. The DDS-2 drive’

s jumpers
are set at the factory to the SCSI-2 default address of 3 as shown in Figure 1–3. You must
also ensure that the Operation Mode jumpers are set for correct drive operation, as shown
in Figure 1–4. We ship the drive with the Operation Mode jumpers set to operate
correctly with your system. We recommend that you keep the default address, if possible.

CAUTION: SCSI tape drives are susceptible to mechanical and electrostatic

shock. When handling a DDS-2 drive, always wear the static­grounding wrist strap that comes in the DDS-2 drive kit, and al­ways handle the drive carefully.

Electrostatic charges can damage drives. To prevent such damage
from occurring, observe the following precautions during unpack­ing and installation:

D Stand on a static-free mat.
D Wear a static strap to ensure that any accumulated electrostatic

ge discharges from your body to ground.

char

D Connect all equipment together, including the static-free mat,

static strap, routing nodes, and peripheral units.

D Keep uninstalled DDS-2 drives in their protective antistatic

bags.

If you need to change the DDS-2 drive’s address or operation mode, follow these
instructions, referring to Figures 1–3 and 1–4.

1. Locate the jumpers at the back of the DDS-2 drive.

2. To change the jumper settings, use needlenose pliers to set the drive’s SCSI ID to an

address that is not used by another SCSI device. Check that the other jumpers are set
correctly.

1–7

Introduction

3. If you need to change the Operation Mode switches, locate the switches on the un-

Address Jumpers

To set the drive’s address, use the SCSI-2 address jumpers, and perform the following
steps:

1. Attach the static-grounding wrist strap by following the instructions on the package

2. Locate the address jumpers on the rear of the DDS-2 drive. Figure 1–3 shows the

derside of the DDS-2 tape drive. Switches 1 and 2 are used to configure the data
compression operation mode. Switches 3 through 8 are used to specify drive connec­tivity and functionality according to host or customer requirements. The default set­ting is all switches ON.

that contains the strap. Attach one end of the strap to the system chassis.

rear of the DDS-2 drive with the significant bits identified.

1–8

3. Set the drive’s SCSI-2 target address to an address that’s not used by another SCSI-2

device. Using Figure 1–3 as a guide, use needlenose pliers to set the jumpers. When
finished, refer to “Preparing the System,” later in this chapter for information on
verifying the jumpers have been set correctly and your system sees the drive.

NOTICE: Do not use SCSI-2 address 7 because the system’s SCSI-2

controller uses address 7 by default. We advise that you do not
SCSI-2 address 6 because the root disk drive uses it.

use

Term
PWR

Introduction

Bit 0

Bit1

Bit 2

SCSI Connector

SCSI

Term

ID

PWR*

0

1

2

SCSI

2

Bit 1 Bit 0 Bit 2 Bit 1 Bit 0

Bit

ID

4

5

6

Power Connector

Term
PWR*

3

(Default)

*T

erm PWR is not used in HP workstation configurations.

Figure 1–3. Rear View of DDS-2 Drive and SCSI Addr

ess/Jumper Settings

1–9

Introduction

 " 
#"!

1–10



 

 !! !
 !" " 



 

 !! ! !"
 "   !!



 

 !! 
 !" " 





 !! 
" !" " 

 

Figure 1–4. Switch Settings for Data Compr

ession Operation Mode

Preparing the System

Perform the following steps to prepare the system for the DDS-2 drive installation:

1. Determine the existing SCSI-2 address settings currently in use on your system by

completing the following steps:.

2. If you are using HP-UX 9.X, enter the following at the prompt:

Introduction

/etc/ioscan -d scsitape

RETURN

After a few moments the ioscan utility lists all of the SCSI I/O devices it can find. If
there is a SCSI DDS drive in the list, its listing appears similar to the following:

H/W Path Description Status
==============================================

2.0.1.3.0 scsi ok(nnnnnnnn)

If you are using HP-UX 10.X, enter the following at the prompt:

/usr/sbin/ioscan -d stape

RETURN

After a few moments the ioscan utility lists all of the SCSI I/O devices it could find.
The list appears similar to the following:

H/W Path Description Status
==============================================
2/0/1.3.0 tape HP C1533A

1–11

Introduction

If you are using HP-UX 10.X and wish to list all I/O devices, enter the following at
the prompt:

/usr/sbin/ioscan

RETURN

The list appears similar to the following:

H/W

Path Class Description
============================================
bc
8 bc I/O Adapter
8/0 ext_bus GSC built-in Fast/Wide SCSI Interface
8/0.0 target
8/0.0.0 disk QUANTUM LPS1080WD
8/0.5 target
8/0.5.0 disk DEC DSP3210SW
8/0.6 target
8/0.6.0 disk DEC DSP3210SW
8/12 ba Core I/O Adapter
8/12/5 ext_bus Built-in SCSI
8/12/5.3 target
8/12/5.3.0 tape. HP C1533A
8/12/5.4 target
8/12/5.4.0 disk. SEAGATE ST3600N
8/12/5.6 target
8/12/5.6.0 disk MICROP 2112
10 bc I/O Adapter
10/12 ext_bus GSC add-on Fast/Wide SCSI Interface
10/12.4 target
10/12.4.0 disk SEAGATE ST31200W

1–12

If your DDS-2 drive is not listed, go to Chapter 3, “Troubleshooting and Removal/
Replacement Procedures.”

3. Shut down the system.

If you are running HP-UX under HP VUE, shut down your system according to the
shutdown procedure described in the Owner’s Guide that came with your worksta­tion.

If you are running HP-UX without HP VUE, shut down your system by typing the
following command:

Introduction

# /etc/shutdown -h

RETURN

You must have superuser privileges to use the /etc/shutdown command. If you do
not have superuser privileges, contact your system administrator.

If your workstation is part of a cluster, refer to Managing Clusters of HP 9000 Com-
puters for instructions on shutting down.

SCSI-2 Connection and Termination

Only single-ended SCSI-2 configuration is supported, with a maximum sustained transfer
rate of 5.0 MB/second. Only unshielded connectors can be used.

The DDS-2 drive does not support termination on the device itself. Normally, drives such
as this are not required to be at the end of a bus, but if this is unavoidable, HP
recommends using a feed-through SCSI terminator that plugs directly into the rear of the
drive. Use active termination, as the drive is capable of a transfer rate greater than 5
MB/second.

If you do not already have a SCSI terminator, you must order either terminator K2291
(bale-lock style) or terminator C2094A (thumbscrew style).

NOTICE: Use care when inserting and removing feed-through terminators to

avoid damaging the end walls of the terminator and the drive.

1–13

Introduction

Powering Off the Workstation and any Peripherals

To power off the workstation and any peripherals, perform the following steps:

1. Power off the workstation, using the power switch on the front of the workstation.

CAUTION: Do not power off your workstation without first shutting down

HP-UX. Powering off with HP-UX still running could damage the
data on the disks associated with your workstation.

If you are already at the boot-administration level (the level used to check the SCSI-2
IDs), you do not need to shut down before powering off.

If you accidentally rebooted HP-UX while determining the address settings, see
“Preparing the System,” earlier in this chapter, for instructions on shutting down HP-UX.

1–14

2. Disconnect the power cord from the rear of the workstation and the wall outlet.

3. Power off any external peripherals attached to your workstation, and unplug their

power cables from the wall outlet.

Introduction

Adding or Removing the DDS-2 Drive Bezels or Expansion Brackets

Depending on the size of the drive opening in your system, you may need to add or
remove a bezel or expansion brackets to ensure that your DDS-2 drive fits in your
system.

NOTICE: Before performing any of these changes, make sure there is not a

cassette in the drive.

• To add a bezel (it can be a 3.5-in bezel, or a 5.25-in bezel) to your drive, push

onto the drive, making sure the tabs click into place. Refer to Figure 1–5.

• To remove a bezel from a drive, use a straight blade screwdriver to lift the bezel

tabs from the sides of the drive. Refer to Figure 1–6.

• To add or remove expansion brackets to the drive, use a T10 torx wrench to ei-

ther tighten or remove the four torx screws that hold each expansion bracket to
the drive. Refer to Figure 1–7.

Figure 1–5. Adding a Bezel to the DDS-2 Drive

1–15

Introduction

Figure 1–6. Removing a Bezel from the DDS-2 Drive

1–16

Figure 1–7. Adding or Removing Expansion Brackets

Introduction

You are now ready to begin the hardware installation of your DDS-2 drive. The
step-by-step instructions for installing the drive are found in the Owner’s Guide that
came with your workstation.

1–17

Chapter 2

Using the DDS-2 Drive

This chapter provides the following information on using your DDS-2 drive:

• DDS-2 drive configuration

• Controls and features of the DDS-2 drive

• Using the DDS-2 drive

To verify HP-UX system operation, see the Owner’s Guide that came with your
workstation.

For more information on checking or reconfiguring the kernel for a device driver or file,
see

System Administration Tasks Manual: HP 9000 Series 700 Computers.

2–1

Using Y

our DDS Drive

Your DDS-2 Drive Configuration

Your HP-UX operating system comes with preconfigured device files and drivers. If you
use these preconfigured device files and drivers, you won’t need to configure your
DDS-2 drive with the operating system.

To find out more about creating and using device files, the the Owner’s Guide that came
with your system.

Controls and Features of the DDS-2 Drive

Your DDS-2 tape drive is either a 3 1/2-inch form factor, or a 5 1/4-inch form factor
DDS-2 tape drive with data compression and a SCSI interface. It conforms to the DDS-1
format standard for storing computer data. It’s a high-capacity, high transfer-rate device
for data storage on tape.

2–2

Figure 2–1 shows the LEDs and eject button of the DDS-2 drive.

T

ape Light

Figure 2–1. DDS-2 Drive Contr

Clean/Attention Light

Eject Button

ols and Indicators

Using Y

our DDS Drive

LEDs

The front panel has two colored LEDs: the Tape Light and the Clean/Attention Light. The
Tape Light flashes green to show activity (loading, unloading, reading, and writing).
Steady green means a cartridge is loaded.

The Clean/Attention Light flashes amber to indicate head cleaning is needed or a
cartridge is near the end of its life. Steady amber means a hard fault.

Table 2–1. LED Display Codes

Tape Clean/ Meaning
Light Attention

Activity

Activity – read or write

Cartridge loaded

Any

Any

Cleaning needed

Fault

– load or unload

Key

OFF

Steady Green

Steady Amber

Flashing Green
1/2 sec on, 1/2 sec of

Flashing Amber
1/2 sec on, 1/2 sec of

Fast Flash Green
1/4 sec on, 1/4 sec of

Data Cassettes

Media Life

HP DDS data cassettes are currently specified to 2000 passes over any part of the tape
under optimal environmental conditions (50% relative humidity, 22 degrees C). During a
tape operation, any one area of the tape may have multiple passes over the heads, this
translates into approximately 200 to 300 backups or restores.

f

f

f

Under certain conditions, the life of your data cassette is less than 200 to 300 backups or
restores. Replace your data cassettes after 100 backups or restores if your operating
conditions meet any of the following criteria:

2–3

Using Y

our DDS Drive

• The relative humidity in your operating environment is consistently less than

50%.

• You know that the backup software you are using makes multiple passes over

sections of the tape during backups or restores.

• You notice that when you do backups and restores the tape stops and starts fre-

quently.

Cleaning the T

Clean the heads of your tape drive after every 25 hours of tape drive use or if the Media
Wear (Caution) signal is displayed on the LED.

NOTICE: Only use HP Cleaning Cassettes (HP92283K) to clean the tape

Follow this procedure to clean the tape heads:

ape Heads

heads. Do not use swabs or other means of cleaning the tape heads.

1. Insert the cleaning cassette into the drive. The tape automatically loads the cassette

and cleans the heads. At the end of the cleaning cycle, the drive ejects the cassette.

2. Write the current date on the label on the cleaning cassette so that you know how

many times you have used it. Discard the cleaning cassette after you have used it
25 times.

Media Restrictions

If you interchange media between other HP workstation DDS tape drives, note that data
cassettes with compressed data can only be read by tape drives that have data
compression capabilities. This includes data cassettes that contain both compressed and
noncompressed data.

2–4

Setting the Write-Protect Tab on a Data Cassette

You can only store or change information on a data cassette when the write-protect tab is
in the write position. So, before trying to write to the data cassette, make sure that the

write

write-protect tab is in the

position, as shown in Figure 2–2.

Using Y

  
 

 
 


Figure 2–2. Setting the Write-Protect Tab on a DDS Tape

our DDS Drive

To protect information on a data cassette from being overwritten, set the write-protect tab
to the write-protect position, as shown in Figure 2–2.

NOTICE: The write-protect tab should always be in the write position for

transferring data to a cassette.

2–5

Using Y

our DDS Drive

Using the DDS-2 Drive

This section describes how to perform tasks with your DDS-2 tape drive.

Loading and Unloading a Data Cassette

Follow these steps to load and unload a data cassette from the DDS-2 tape drive:

1. Turn on power to the tape drive.

2. Insert the data cassette into the drive, as shown in Figure 2–3.

2–6

Eject Button

Figure 2–3. Loading a Data Cassette

Using Y

our DDS Drive

3. Push the data cassette about three quarters of the way into the drive. The drive

automatically pulls the data cassette the rest of the way in. When the LEDs on the
front of the drive stop flashing, the drive has loaded the data cassette.

4. To remove the data cassette, press and release the eject button on the front of the

drive, as shown in Figure 2–3. The LEDs on the drive flash on and off. Ten to
twenty seconds later
cassette from the drive.

Verifying the DDS-2 Tape Drive Operation

To verify that your workstation can communicate with the DDS-2 tape drive, if you are
using HP-UX 9.05, type the following:

, the data cassette slides partway out of the drive. Remove the

/etc/ioscan -d scsitape

Return

After a few moments the ioscan utility returns a message similar to the following:

H/W Path Description Status
===========================================

2.0.1.3.0 tape_drive ok(nnnnnnnnn)

If you are using HP-UX 10.0, type the following:

/usr/sbin/ioscan -d stape

Return

After a few moments the ioscan utility returns a message similar to the following:

H/W Path Class Description
============================================
bc
8 bc I/O Adapter
8/12 ba Core I/O Adapter
8/12/5 ext_bus Built-in SCSI
8/12/5.3 target
8/12/5.3.0 tape HP HP35480A

If your DDS-2 drive is not listed, go to Chapter 3, “Troubleshooting and Removal/
Replacement Procedures.”

2–7

Using Y

our DDS Drive

For information on using device files or archiving data to or from the DDS-2 drive, see
the Owner’s Guide that came with your workstation.

Media Interchangeability Restrictions

If you interchange media between DDS-format tape drives, the following two restrictions
apply to the media:

• Data cassettes with compressed data can only be read by tape drives that have

data compression capabilities, such as the tape drive (part number C1504–67201)
found in Kit A2275A #AHS.

• Full height (5 1/4-in) DDS-format tape drives (models HP 35470A and

HP35480A) can get 1.3 GB and can read or write to 60-meter data cassettes only,
if they are not using data compression. With data compression, these drives can
get 2 GB and can read or write to 90-meter cassettes.

Ordering Information

2–8

To order Hewlett-Packard data cassettes and cleaning cassettes for use in your DDS-2
tape drive, use the following order numbers:

• HP92283A Box of five 60-meter DDS data cassettes

• HP92283B Box of five 90-meter DDS data cassettes

• HP92300A Box of five 120-meter DDS data cassettes

• HP92283K

Package of two head-cleaning cassettes

• HP92283L Lockable storage box for 12 cassettes

CAUTION: Use only data cassettes labeled as DDS (Digital Data Storage) cas-

settes. Never use audio cassettes labeled DA
in your DDS-format drive.

T (Digital Audio Tape)

Chapter 3

Troubleshooting and Removal/Replacement Procedures

This chapter provides the following information on troubleshooting and
removal/replacement procedures for your DDS-2 drive:

•

Checking the address settings

• Checking the hardware installation

• Verifying system operation

•

Field Replaceable Units

• Powering off the system

• Removing and replacing the DDS-2 drive

• Adding or removing DDS-2 drive bezels and expansion brackets

3–1

Troubleshooting and Removal/Replacement Procedures

Troubleshooting

If you have trouble with any of these procedures, see the Owner’s Guide that came with
your system.

This chapter explains what to do if you experience problems during the configuration
process. It also explains how to run the Support Tool Manager or the Extended Self Test
to verify your system.

If you are experiencing difficulty booting the system, reconfiguring HP-UX, or using the
DDS-2 drive, complete each of the following tasks, in the order they are presented, until
you discover and correct the problem:

• Check the address settings of any single-ended SCSI-2 devices.

• Check that you have installed the hardware correctly.

• Recheck the device list.

3–2

• Run verification tests.

Checking the Address Settings for Single-Ended Drives

Check the address settings of each single-ended SCSI-2 device on the bus. Make sure
that no device has the same address setting as another. If you find two devices with the
same address, change one of the devices to a different, unused address setting. To check
the address settings for each single-ended SCSI-2 device, type the following in a terminal
window or HP-UX command line:

If you are using HP-UX 9.X, enter the following at the prompt:

/etc/ioscan

A screen similar to the following appears:

RETURN

Troubleshooting and Removal/Replacement Procedures

H/W Path Description Status
====================================

1.0.0 graphics ok(0x577)

2.0.1 scsi ok(0x7071)

2.0.1.3.0 tape_drive ok(0x1800202)

2.0.2 lan ok(0x7072)

2.0.3 hil ok(0x7073)

2.0.4 serial ok(0x7075)

2.0.5 serial ok(0x7075)

2.0.6 parallel ok(0x7074)

2.0.7 scsi ok(0x707c)

2.0.7.6.0 disk ok(0x101)

Look under the H/W Path heading for device paths beginning with the sequence 2.0.1.
The sequence 2.0.1 denotes a single-ended SCSI controller. The number following 2.0.1
is the address setting for a single-ended device on that controller. For example, the listing

2.0.1.3.0 in the sample device list tells us that there is a single-ended device currently
using address 3.

If you are using HP-UX 10.X, enter the following at the prompt:

/usr/sbin/ioscan -d scsitape

RETURN

After a few moments the ioscan utility lists all of the SCSI I/O devices it could find. The
list appears similar to the following:

H/W Path Class Description
============================================
bc
8 bc I/O Adapter
8/0 ext_bus GSC built-in Fast/Wide SCSI Interface
8/0.0 target
8/0.0.0 disk QUANTUM LPS1080WD
8/0.5 target
8/0.5.0 disk DEC DSP3210SW
8/0.6 target
8/0.6.0 disk DEC DSP3210SW

3–3

Troubleshooting and Removal/Replacement Procedures

8/12 ba Core I/O Adapter
8/12/5 ext_bus Built-in SCSI
8/12/5.3 target
8/12/5.3.0 tape HP C1533A
8/12/5.4 target
8/12/5.4.0 disk SEAGATE ST3600N
8/12/5.6 target
8/12/5.6.0 disk MICROP 2112
10 bc I/O Adapter
10/12 ext_bus GSC add-on Fast/Wide SCSI Interface
10/12.4 target
10/12.4.0 disk SEAGATE ST31200W

Checking the Hardware Installation

Perform the following steps to check the hardware installation:

3–4

CAUTION: The DDS-2 drive is susceptible to mechanical and electrostatic

shock. When handling the drive, always wear the static strap that
came in the DDS-2 drive kit. Always handle the drive carefully.

1. Check that the SCSI-2 terminator is connected to the single-ended SCSI-2 port on

the rear I/O panel of the system unit (if there are no external SCSI-2 devices), or
that the last external single-ended SCSI-2 device is terminated.

2. Attach the static-grounding wrist strap by following the instructions on the package

that contains the strap.

3. Shut down HP-UX.

NOTICE: If you are already at the boot administration level, you do not need

to shut down; skip this step and go on to Step 4.

If you are running HP-UX under HP VUE, shut down your system by performing
the shutdown procedure described in the Owner’s Guide that came with your work­station.

Troubleshooting and Removal/Replacement Procedures

If you are running HP-UX without HP VUE, shut down your system by typing the
following command:

# /etc/shutdown -h

You must have superuser privileges to use the /etc/shutdown command. If you do
not have superuser privileges, contact your system administrator.

If your workstation is part of a cluster, refer to Managing Clusters of HP 9000 Com-
puters for instructions on shutting down.

RETURN

4. Power off the workstation, using the power switch on the front of the workstation.

CAUTION: Do not power off your workstation without first shutting down

HP-UX. Powering off with HP-UX still running could damage
the data on the disks associated with your workstation.

5. Remove the drive and check the jumpers, as described in “Removal/Replacement

Procedures” at the end of this chapter.

6. Replace the drive.

7. Check the cable connections of your DDS-2 drive. Make sure that the connectors are

aligned and seated correctly.

8. Recheck the device list (see “Recheck the Address Settings” below).

Rechecking the Address Settings

Check the address settings again to see if the drive is now listed (see “Checking the
Address Settings for Single-Ended Drives,” earlier in this chapter).

If the DDS-2 drive and all other SCSI-2 devices available to you before you installed the
DDS-2 drive are now listed, run the system verification test for your software version, as
explained in the next sections.

3–5

Troubleshooting and Removal/Replacement Procedures

If the DDS-2 drive is still not listed, or one of the SCSI-2 devices available to you before
you installed the DDS-2 drive is still not listed, contact your service representative.

Verifying the System Operation using SupportWave

HP-UX uses a diagnostics product called SupportWave. SupportW

ave contains the

Support Tools Manager so that you can verify your system operation.
You can access the Support Tools Manager while in a terminal window. If you are using

HP VUE as your interface, you can also access the Support Tools Manager through the

sys_admin directory.
NOTICE: You must use software patch PHSS_6142 on HP-UX 9.03, 9.05

and 9.07 to run SupportW

ave successfully

.

Three interfaces are available with the Support Tools Manager: a command line interface
(accessed through the cstm command), a menu-driven interface (accessed through the
mstm command), and the graphical user interface (accessed through the xstm
command).

For more information on SupportWave user interfaces, see the online man pages by
entering the following at a command line prompt:

# man cstm

# man mstm

# man xstm

RETURN

RETURN

RETURN

3–6

To run SupportWave from either HP VUE or the HP-UX command line shell, perform
the following steps:

1. To invoke the command line interface, in a terminal window or command line shell,

type the following at the

# cstm

RETURN

The following screen appears:

# prompt:

Troubleshooting and Removal/Replacement Procedures

********************************************************************
****** ******
****** SUPPORT TOOLS MANAGER ******
****** ******
****** Command Line Interface ******
****** ******
****** Version A.00.12 ******
****** ******
****** Part Number B2478–10002 ******
****** ******
****** (C) Copyright Hewlett Packard Co. 1991, 1992 ******
****** All Rights Reserved ******
****** ******
********************************************************************
Please wait. System mapping in progress . . .
Please type HELP or ? to list available commands.
CSTM>

2. To verify the system operation, type the following at the CSTM> prompt:

CSTM> verify all

RETURN

Messages that are similar to the following appear:

Verification has started on device (CPU).
Verification has started on device (FPU).
Verification has started on device (0/0/0).
Verification has started on device (2/0/1.3.0).
Verification has started on device (2/0/1.6.0).
Verification has started on device (2/0/2).

CSTM>Message from (0/0/0):
This graphics test displays a number of graphics images on the screen of
the graphics device being tested. If an X server is not currently run­ning on that display, X Windows will be started and run for the duration
of the test. The Starbase shared library (/usr/lib/libsb.sl) should be
present to run this test.

CAUTION: This test will fail if any portion of the test window is modi­fied or overlaid in any way.

3–7

Troubleshooting and Removal/Replacement Procedures

NOTE: If a VUE login screen is currently displayed on the monitor, the
test will wait until someone logs in the HP VUE on the graphics monitor
to release the lock. The test stops if the Screen Saver times out, it
runs again once the Screen is activated.

WARNING: Do not run this exerciser with any other operation.

(Type ’R’ for Ready, Type ’S’ for Skip) [R] >>

3. When you see the >> prompt shown above, type the following:

RETURN

R

4. The following appears from 2/0/1.3.0:

Load blank medium on drive 2/0/1.3.0
(Type ’R’ for Ready, Type ’S’ for Skip) [R] >>

3–8

The following messages and a graphics test window appear:

Verification of (2/0/1.6.0) has completed. Result status – (Success).
Verification of (CPU) has completed. Result status – (Success).
Verification of (FPU) has completed. Result status – (Success).
Verification of (2/0/2) has completed. Result status – (Success).
Verification of (0/0/0) has completed. Result status – (Success).

5. To return the CSTM> prompt, press

6. To exit the Support T

CSTM> exit

ools Manager

RETURN

RETURN

.

, enter the following:

If any tests failed, further diagnosis is necessary by qualified service personnel.

Removal/Replacement Procedures

The removal/replacement procedures for the DDS-2 drive follow.
CAUTION: Electrostatic charges can damage the integrated circuits on printed

circuit boards. To prevent such damage from occurring, follow
proper ESD precautions.

Field Replaceable Units

The following components are authorized for field replacement.

Description Part Number

DDS-2 C1533A–69203

Powering Off the System

Before performing the removal/replacement procedures, observe the following
precautions:

Troubleshooting and Removal/Replacement Procedures

1. Refer to the Owner’s Guide that came with your system for the procedures to power

off the system.

2. Unplug the system unit power cord and the power cords of any peripheral devices

from the power source.

3. Unplug the system unit power cord from the back of the system unit.

WARNING: Failure to properly shut down and remove power from the system can

create a personal hazard, or may result in hardware damage or data
corruption.

3–9

Troubleshooting and Removal/Replacement Procedures

Removing and Replacing the DDS-2 Drive

To open your system, remove and reinstall the DDS-2 drive, refer to the Owner’
that came with your system. Read “Preparing to Install the DDS-2 Drive” in Chapter 1 of
this guide before beginning an installation.

s Guide

Adding or Removing the DDS-2 Drive Bezels and Expansion Brackets

Depending on the size of the drive opening in your system, you may need to add or
remove a bezel or expansion brackets to ensure that your DDS-2 drive fits in your
system.

NOTICE: Before performing any of these changes, make sure there is not a

cassette in the drive.

• To add a bezel (it can be a 3.5-in bezel, or a 5.25-in bezel) to your drive, push

onto the drive, making sure the tabs click into place. Refer to Figure 3–1.

• To remove a bezel from a drive, use a straight blade screwdriver to lift the bezel

tabs from the sides of the drive. Refer to Figure 3–2.

• To add or remove expansion brackets to the drive, use a T10 torx wrench to ei-

ther tighten or remove the four torx screws that hold each expansion bracket to
the drive. Refer to Figure 3–3.

3–10

Troubleshooting and Removal/Replacement Procedures

Figure 3–1. Adding a Bezel to the DDS-2 Drive

Figure 3–2. Removing a Bezel from the DDS-2 Drive

3–11

Troubleshooting and Removal/Replacement Procedures

3–12

Figure 3–3. Adding or Removing Expansion Brackets

Appendix

A

Safety and Regulatory Statements

This appendix contains the following safety and regulatory statements:

•

Emissions regulations

•

Emissions regulations compliance

• Electrostatic dischar

ge precautions

A–1

Safety and Regulatory Statements

Emissions Regulations

Federal Communications Commission (FCC)

The Federal Communications Commission of the U.S. government regulates the radio
frequency energy emanated by computing devices through published regulations. These
regulations specify the limits of radio frequency emission to protect radio and television
reception. All HP Apollo nodes and peripherals have been tested and comply with these
limits. The FCC regulations also require that computing devices used in the U.S. display
the agency’s label and that the related documentation include the following statement:

NOTICE: This equipment has been tested and found to comply with the limits

for a Class A digital device, pursuant to part 15 of the FCC rules.
These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commer­cial environment. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance
with the instruction manual, may cause harmful interference to ra­dio communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the user
will be required to correct the interference at his own expense.

A–2

Canadian Department of Communications (CDC)

This digital apparatus does not exceed the Class A limits for radio noise emissions from
digital apparatus as set out in the Radio Interference Requirements of the Canadian De­partment of Communications.

Emissions Regulations Compliance

Any third-party I/O device installed in HP system(s) must be in accordance with the re­quirements set forth in the preceding Emissions Regulations statements. In the event that
a third-party noncompliant I/O device is installed, the customer assumes all responsibility
and liability arising therefrom.

Electrostatic Discharge (ESD) Precautions

Electrostatic charges can damage the integrated circuits on printed circuit boards. To pre­vent such damage from occurring, observe the following precautions during board un­packing and installation:

• Stand on a static-free mat.

• Wear a static strap to ensure that any accumulated electrostatic charge is dis-

charged from your body to ground.

Safety and Regulatory Statements

• Connect all equipment together, including the static-free mat, static strap, routing

nodes, and peripheral units.

• Keep uninstalled printed circuit boards in their protective antistatic bags.

• Handle printed circuit boards by their edges, once you have removed them from

their protective antistatic bags.

A–3

Appendix

B

SCSI Connector Pinouts

Table B–1. SCSI Connector Pinouts

PIN

1 GND 26 TERMPWR
2 DB(0) 27 GND
3 GND 28 GND

4 DB(1) 29 GND
5 GND 30 GND
6 DB(2) 31 GND
7 GND 32 –ATN
8 DB(3) 33 GND

9 GND 34 GND
10 DB(4) 35 GND
11 GND 36 –BSY
12 DB(5) 37 GND
13 GND 38 –ACK
14 DB(6) 39 GND
15 GND 40 –RST
16 DB(7) 41 GND
17 GND 42 –MSG
18 DB(P) 43 GND
19 GND 44 –SEL
20 GND 45 GND
21 GND 46 –C/D
22 GND 47 GND
23 GND 48 –REQ
24 GND 49 GND
25 OPEN 50 –I/O

SIGNAL PIN SIGNAL

B–1