Digital Equipment TLZ07 User manual

TLZ07 Cassette Tape Drive and
Autoloader
Owner’sManual
Order Number: EK-TLZ07-OM. B01
Digital Equipment Corporation

October 1995
Digital Equipment Corporation makes no representations that the use of its products in the
manner described in this publication will not infringe on existing or future patent rights, nor do
the descriptions contained in this publication imply the granting of licenses to make, use, or sell
equipment or software in accordance with the description.
© Digital Equipment Corporation 1994,1995. All Rights Reserved.
Printed in the U.S.A.
FCC NOTICE: The equipment described in this manual has been certified to comply with
the limits for a Class B computing device, pursuant to Subpart J of Part 15 of FCC Rules.
Only peripherals (computer input/output devices, terminals, printers, et cetera) certified to
comply with the Class B limits may be attached to this computer. Operation with noncertified
peripherals may result in interference to radio and television reception. This equipment
generates and uses radio frequency energy and if not installed and used properly, that is, in
strict accordance with the manufacturer’s instructions, may cause interference to radio and
television reception. It has been type tested and found to comply with the limits for a Class B
computing device in accordance with the specifications in Subpart J of 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 this equipment does cause interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
• Reorient the receiving antenna.
• Move the computer away from the receiver.
• Plug the computer into a different outlet so computer and receiver are on different branch
circuits.
If necessary, the user should consult the dealer or an experienced radio/television technician
for additional suggestions. The user may find the following booklet prepared by the Federal
Communications Commission helpful: How to Identify and Resolve Radio-TV Interference
Problems. This booklet is available from the US Government Printing Office, Washington, DC
20402, Stock No. 004-000-00398-5.
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DECservice, DECstation, Q–bus, SERVICenter, StorageWorks, ULTRIX, VAXstation, VMS, and
the DIGITAL logo. (S3049)

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BESCHEINIGUNG DES HERSTELLERS/IMPORTEURS
Dieses Gerät ist in Übereinstimmung mit den Bestimmungen der BMPT Vfg.243/1991 und
Vfg.46/1992 in Verbindung mit EN55022:1987 (DIN VDE 0878-3:11.89), oder Vfg.1046/1984
mit Vfg. 483/1986, funkentstört. Es trägt als Nachweis der EMV-Konformität entweder eine
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Contents
1 TLZ07 Cassette Tape Drive Product Description
1.1 Overview ........................................... 1–1
1.1.1 System Support ................................... 1–2
1.2 Design Features . . . ................................... 1–2
1.2.1 What is Digital Audio Tape (DAT?) . ................... 1–2
1.2.2 What is Digital Data Storage (DDS?) ................... 1–2
1.2.3 What is the Media Recognition System (MRS)? . .......... 1–3
1.3 TLZ07/7L Models . . ................................... 1–3
1.3.1 Checking Your Shipment for Model TLZ07-DA . .......... 1–8
1.3.2 Checking your Shipment for Model TLZ7L-DA . .......... 1–8
1.3.3 Ordering Additional Cassettes ........................ 1–8
2 Installing the Tabletop Drives/Loaders (TLZ07/TLZ7L)
2.1 General . ........................................... 2–1
2.2 Shut Down, Halt, and Power Off the System ................ 2–1
2.3 Selecting the SCSI Address . . ........................... 2–2
2.4 Connecting a SCSI Signal Cable — Drive to System .......... 2–3
2.5 Adding Another Tabletop Drive — Drive to Drive . . .......... 2–4
2.6 Connecting the Power Cable . ........................... 2–4
3 Installing the TLZ07-AA/BA Cassette Tape Drive
3.1 General . ........................................... 3–1
3.2 Shut Down, Halt, and Power Off the System ................ 3–1
3.3 Selecting the SCSI Address for the TLZ07-AA/BA Drive ....... 3–2
3.3.1 Other Optional Switch Settings ....................... 3–5
3.3.2 Revised Version TLZ07-AA/-BA Tape Drive SCSI Jumper
Settings ......................................... 3–5
3.4 Connecting a SCSI Signal Cable — Drive to System .......... 3–6
3.5 Connecting the Power Cable and Mounting ................. 3–7
v

4 Verifying TLZ07 Cassette Tape Drive Installation
4.1 General ............................................ 4–1
4.1.1 Execute POST .................................... 4–1
5 Using the TLZ07 Cassette Tape Drive
5.1 General ............................................ 5–1
5.2 Power Switch ........................................ 5–1
5.3 Unload Button ....................................... 5–1
5.4 Write-Protect LED .................................... 5–1
5.5 Tape/Activity LED .................................... 5–1
5.6 Indicators . . . ........................................ 5–2
5.7 Using the Cassette Tape ............................... 5–4
5.7.1 Proper Handling of Cassette Tapes .................... 5–4
5.7.2 Setting the Write-Protect Tab on the Cassette Tape. ....... 5–5
5.7.3 Inserting a Cassette Tape into the Drive ................ 5–6
6 Preventive Maintenance and Problem Solving
6.1 Cleaning the Heads . . . ................................ 6–1
6.2 Problem Solving ...................................... 6–3
6.2.1 System-Based Diagnostics . . . ........................ 6–4
6.3 Repair Services ...................................... 6–4
6.3.1 On-Site Service . . . ................................ 6–4
6.3.2 BASIC Service .................................... 6–4
6.3.3 DECservice ...................................... 6–5
6.3.4 Carry-In Service . . . ................................ 6–5
6.3.5 DECmailer Service . ................................ 6–5
6.3.6 Per Call Service . . . ................................ 6–5
7 Using the TLZ7L autoloader
7.1 Overview . . . ........................................ 7–1
7.2 Indicators . . . ........................................ 7–1
7.3 Dot Matrix Display . . . ................................ 7–5
7.3.1 Activity Messages . ................................ 7–5
7.3.2 Status Messages. . . ................................ 7–5
7.3.3 Error Messages . . . ................................ 7–5
7.4 Operation . . . ........................................ 7–8
7.4.1 Automatic Operations .............................. 7–8
7.4.2 Manual Operations ................................ 7–9
7.4.3 Single Cassette Operation . . . ........................ 7–9
vi

7.5 Switch Settings and Jumpers. ........................... 7–10
7.5.1 Switchpack 1 . . ................................... 7–10
7.5.2 Switchpack 2 . . ................................... 7–11
7.5.3 SCSI ID Select Switch (-DA Version Only) ............... 7–12
7.5.4 SCSI ID Select Switch (-AA Version Only) Switchpack 3 . . . . 7–12
7.5.5 Other Switch Settings . . . ........................... 7–13
7.5.6 Termination Jumper/Terminators. . . ................... 7–14
7.6 Routine Maintenance .................................. 7–15
7.6.1 Cleaning the Rollers................................ 7–15
7.6.2 Cleaning the TLZ07 Tape Drive ....................... 7–15
A Cassette Tape Drive Specifications
B Enabling/Disabling Data Compression Under OSF and
OpenVMS
B.1 OSF TLZ07 Compression and Noncompression Modes ......... B–1
B.2 OSF DUMP Utility ................................... B–1
B.3 OpenVMS TLZ07 Compression and Noncompression Modes . . . . B–2
Index
Figures
1–1 Model TLZ07-DA (Tabletop - Original Version) . .......... 1–4
1–2 Revised Version TLZ07-DA Tabletop Tape Drive .......... 1–5
1–3 Model TLZ07-AA (3.5-inch Chassis) and TLZ07-BA (5.25-inch
Form Factor - Original Version) ....................... 1–6
1–4 Revised Version TLZ07-AA/-BA Tape Drive .............. 1–7
3–1 SCSI Address Switches . . ........................... 3–4
3–2 Revised Version TLZ07-AA/-BA Tape Drive SCSI Jumper
Settings ......................................... 3–6
5–1 TLZ07 Cassette Tape ............................... 5–5
7–1 Model TLZ7L-AA, Front View ........................ 7–2
7–2 Model TLZ7L-AA, Top View .......................... 7–2
7–3 Model TLZ7L-DA, Front View ........................ 7–3
7–4 Model TLZ7L-DA, Back View ......................... 7–4
7–5 SCSI Address Switches . . ........................... 7–14
vii

Tables
3–1 SCSI ID Switch Settings (0=Off, 1=On) . ................ 3–3
5–1 TLZ07 LED Status . ................................ 5–3
6–1 Problem Solving . . . ................................ 6–3
7–1 Loader Error Codes ................................ 7–6
7–2 Status Messages. . . ................................ 7–7
7–3 SW1 Settings and Functions . ........................ 7–10
7–4 SW1-1 and SW1-2 Settings . . ........................ 7–10
7–5 SW2 Settings and Functions . ........................ 7–11
7–6 SCSI ID Select Switch .............................. 7–12
7–7 SCSI ID Switch Settings on Switchpack 3 (0=Off, 1=On) .... 7–12
A–1 TLZ07 Cassette Tape Drive Specifications ............... A–1
A–2 TLZ07 Cassette Tape Drive Dimensions ................ A–2
A–3 TLZ07-DA Noise Declaration . ........................ A–3
A–4 TLZ7L Cassette Tape Drive Specifications ............... A–4
A–5 TLZ7L Cassette Tape Drive Dimensions ................ A–5
A–6 TLZ7L-DA Noise Declaration . ........................ A–5
viii

1
TLZ07 Cassette Tape Drive Product
Description
1.1 Overview
The TLZ07 Digital Audio Tape (DAT) drive provides you with high capacity,
off-line data storage. Depending on the 4 mm data cassette tape used, the unit
can typically store:
Tape Type (NOTES 1 and 2) No Compression Compression
TLZ04-CA (60 m, DDS-1) 1.3 GB 2.6 GB (see Note 3.)
TLZ06-CA (90 m, DDS-1) 2.0 GB 4.0 GB (see Note 3.)
TLZ07-CA (120 m, DDS-2) 4.0 GB 8.0 GB (see Note 3.)
NOTE
1. The TLZ07 is compatible with 60 m cassette tapes written on the
TLZ04 in the noncompressed mode only.
2. The TLZ07/7L is compatible with the TLZ06/6L using 60 m and 90
m tapes only.
3. The compression measurements are typical for a 2-to-1 data
compression ratio, but the actual ratio is dependent on the data.
The maximum time to back Up (read or write) on a TLZ07 cassette tape
in a continual (streaming) mode is system dependent. The efficient use of
streaming mode is determined by your operating system. Please refer to your
system software documentation.
TLZ07 Cassette Tape Drive Product Description 1–1

1.1.1 System Support
As of this printing, the TLZ07 drive is supported by a variety of Digital
systems. Consult your Digital Sales Support representative for a list of
supported systems. Your particular system must have a standard SCSI (small
computer system interconnect) port, a KZQSA (Q–bus to SCSI adapter), or
HSD05 (DSSI bus to SCSI adapter).
1.2 Design Features
The TLZ07 cassette tape drive uses state of the art technology. The TLZ07
cassette tape drive’s design incorporates the Digital Data Storage (DDS)
recording format and Digital Audio Tape (DAT) recording technologies.
1.2.1 What is Digital Audio Tape (DAT?)
DAT technology provides a high recording density with a very low error rate
through the helical scan recording method. With this method of recording,
both the tape and the recording head move simultaneously. The read and write
heads are located on a rapidly rotating cylinder, or drum that is tilted at an
angle in relation to the vertical axis of the tape. This causes the tracks to be
recorded diagonally across the tape, resulting in an extremely high recording
density, far higher than what is achievable with stationary-head devices.
1.2.2 What is Digital Data Storage (DDS?)
DDS uses a recording format that supports the use of digital audio tape
for computer applications. The objectives of DDS are to maximize storage
capacity and performance, facilitate data interchange, and provide very fast
random access. In addition, this format has three levels of error correction,
which ensures high data integrity. The DDS-DC format, which is a superset
of the basic DDS DAT format, allows you to back up 8 gigabytes of data in
approximately 3 hours minimum with no operator intervention, assuming 2:1
compression ratio.
NOTE
Use of non-DDS media may result in degraded drive performance and
is not recommended by Digital Equipment Corporation.
1–2 TLZ07 Cassette Tape Drive Product Description