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Document:	TZK10 Cartridge Tape Drive Owner's Guide
Order Number:	EK-TZK10-OG
Revision:	002
Pages:	32
Original Filename:

OCR Text

TZK10 Cartridge
Tape Drive
Owner’s Guide
Order Number EK-TZK10-OG-002

* Digital Equipmen

t Corporation

First Edition, October 1990
Second Edition, March 1991
The information in this document is subject to change without notice and should not
be construed as a commitment by Digital Equipment Corporation. Digital Equipment
Cergeratien assumes no responsibility ffir any errors that may appear in this document.

The software describedin this documentis furnished under a license and may be used or

copied onlyin accordance> with the terms‘of such license.
a§

ropplied b-’*’ &8‘*&3 Equipment orporation or its a@hated companies.

1 fi fer thfie‘use or rehabxhéy af software on equipment thatis not

Digital Equipment Carperatmg

1996, 1991

The following are trademarks of Digital Equipment Corporation: DC6320, DC6525, DEC,
DECdirect, DECservice, SERVICenter, TZK10, ULTRIX, VAX, VMS.

SCO is a trademark of Santa Cruz Operations, Incorporated.

UNIX is a registered trademark of UNIX System Laboratories, Inc.
NOTICE: This equipment generates and uses radio frequency energy. 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 radio and television 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, the user is
encouraged to try to correct the interference.

This document was prepared and published by Educational Services Development and
Publishing, Digital Equipment Corporation.

Contents

Introduction

2 Operating Procedures

2.1
Centmls and Indicators ..............e SRR .
2.1.1 LED
'
2.2

2-1
2-1

’I‘apseCartndge ,,,,,,,,,,,,,,, - 2-2

23
UsingtheTapeCartridge...................... it
v o
24
2.3.1
Tape CartridgeHandling ......................... 24
- 2.82
Setting the Write-Protect Switch ................. ..
25
2.3.3 Inserting the Tape Cartridge into the Drive............
2-6
2.3.4
Removing the Tape Cartridge from the Drive ..........
2-6
235
Retensioning ...............0iiiiiiiirerirrenas
2-7
2351
ULTRIX ....oiviiiirnrninnenneennnnnnanneee.
227
2.3.56.2
VM
S .
i
i i et
ee
2-7
2.3.5.3

SCSIIDSettings .......ccvieieneereerennnnneensse.

2.4.1

SCOUNIX ...ttt ittt

Auto Density Select and Terminator Power ............

2-8
2-8

Operating Systems Support

3.1
TZK10 Operating Systems Support....................
811
VMS SUPPOIt « .o e e eeeeeeeeeeaieeeeeannneeeenn

3-1
3-1

3.12

UltrixSupport . ......coiiiiiiiiiiinieineeraeeneas

3-1

3.13

512 Byte Blocks, 1 K Blocks, and Vanable Reesrdsin

3.1.3.1
3.1.3.2

Efi'ect.s on the ULTRIX Operating System ...........
Effects on the SCO UNIX Operating System .........

3-2
3-2

Contents

3.1.4

Auto Density Select inthe ReadCase ................

3.14.1

Effects on the ULTRIX and SCO UNIX Operatmg

172
++ 1=

3.1.5

Auto Density Selectin the Write Case . ... ... e

3.1.5.1

Effects on the ULTRIX Operating System ...........

3.1.5.2

Effects on the SCO UNIX and MS-DOS Operating

3.1.5.3

Effects on the VMS Operatmg System ............. .

Systems . . . . . .

00 i ...

Preventive Maintenance and Problem Resolution

4.1

CleaningtheHeads ............. ...

System-Based Diagnostics ..................
.ovonn.

... ...

4.3

Tape Drive and Media Errors. .. .. e eeeeee
seee s eiain e e

RepairServices ..........coitiiiiiiiiiiniiniinnan

441

On-SiteService .........cuiiiiiiiiniinineennnss

442

BasicService ............iiiiiiiii it

443

DECService ...........ui it

444

Carry-InService.........coiiiiiiiiiiiiiininnn.

445

PerCallService...........coviiiiiiiiiiinnnnnnn.

iineeeeenenonsnnnans

Related Supplies

B TZK10 Cartridge Tape Drive Specifications
Index
Figures
2-1

TZK10 Tape Drive (Front View) . . .....................

2-2

The Quarter-Inch
Tape Cartridge .....................

2-3

Setting the Write-Protect Switch ................. AP

2—4

Inserting the Tape Cartridge .........................

2-5

Layout of the Jumper/Strap Connector .................

Contents

Tables
2-1 LED Summary..........ccoovevernernnennesnesans.
. oot
.....
... ...
2-2 Cartridge Compatibility . ........
2-3 TZK10 SCSIID Jumper Settings .. ....................

A-1
B-1

Orderingcartridges ..........coiiiiiiiiennnann.
TZK10 Cartridge Tape Drive Specifications . .. ...........

2-2
24
2-9
A-1
B-1

1
Introduction
The TZK10 cartridge tape drive is a half-height, 5-%4 inch, Quarter-Inch
Cartridge (QIC) streaming tape drive for use with low end, desktop, and
Digital Equipment workstation systems. The TZK10 tape drive provides
archival storage/retrieval, and data collection activities. The TZK10 tape
drive has small computer system interface (SCSI) ability.

The TZKIO ape drive consists of one main component: the tape drive.
The controller logic is located within the TZK10 tape drive itself.

2
Operating Procedures
del-liiS chapter provides operating instructions for the TZK10 cartridge tape
ve.

2.1

Controls and Indicators

The TZK10 cartridge tape drive, Figure 2-1, has one dual color (green
and amber) LED, and an eject button.

LED

Figure 2-1

2.1.1

EJECT

BUTTON

SHR-XR0046-90

TZK10 Tape Drive (Front View)

LED

Table 2-1 summarizes possible conditions of the LED.

2-1

2-2

Operating Procedures

Table 2-1

LED Summary
Condition

LED

Off

Tape is not present or tape is present but has been unloaded

via software.

Solid Green !

Tape is loaded.

Blinking Green

Tape is in motion.

Solid Amber 2

Fault.

1Cartridge is auto-loaded upon insertion.
2 See Section 4.3.

2.1.2 Eject Button
The eject button unlocks the door and partzally ejects the tape cartridge
from the drive.
|

2.2

Tape Cartridge

The TZK10 tape drive is shipped with a DC6320 tape cartridge
(Figure 2-2), however, the TZK10 can be used with other standard format
cartridges. See Table 2-2.

Operating Procedures

2-3

SHR-XR0043-80

Figure 2-2 The Quarter-inch Tape Gartridge
The tape cartridge has a write-protect switch to prevent mé. ntal

overwrite of data. When the switchis rotated to SAFE, (Figure 2—
data may not be written to the tape.

The DC6320 tape cartridge contains approximately 620 feet sf’ magnet
tape wound on two reels. This tape cartridge has a formatted capaci
of up to 320 megabytes of data. The DC6525 tape md@ emtalas
approximately 1000 feet of magnetic tape and has a formattedcapacity of
up to 525 megabytes of data.

The TZK10 tape drive reads and writes according to the following table,
however the density selection and ability to write lower densities on
higher density tape is operating system dependent (see Chapter 3).

2-4

Operating Procedures

Table 2-2

Cartridge Compatibility

Cartridge

Capacity !

Format

Capability ®

DC65256

upto525Mb

QIC-320

Read/Write

DC6320

upto 320 Mb

QIC-320

Read/Write

DC6150/DC600XTD

up to 150 Mb

QIC-150

Read/Write

DC6150/DC600XTD

upto 120Mb

QIC-120

Read/Write

DC600A

upto60 Mb

QIC-24

Read only

1See Section 3.1.5 for information about writing lower densities on a higher density tape.

20perating system dependent

2.3

Using the Tape Cartridge

This section explains how to insert a tape cartridge into, and remove a
tape cartridge from, the TZK10 drive and how to write protect a tape.
This section also explains proper tape cartridge handling.

2.3.1 Tape Cartridge Handling
To avoid damage to your tape cartridge, and to ensure continued tape
drive reliability:

Do not drop or bang cartridge.

Keep cartridge out of direct sunlight, away from heaters and other
sources of heat.

Store cartridge where the temperature is between 10 and 40°C (50 to

If cartridge has been exposed to extremes of heat or cold, allow it
stabilize at room temperature for the same amount of time it was
exposed—up to 24 hours.

Avoid placing cartridge near sources of electromagnetic interference,
such as terminals, motors, and video or X-ray equipment. Any tape
exposed to a magnetic field can lose information.

Store cartridge in a dust-free environment where the relative

104°F).

humidity is between 20 to 80 percent.

Operating Procedures

2-5

Store cartridgein its protective container, on edge or stackec
However, when stacking cartridges, do not stack more than five

Place an identification label enlyin the space provided for the label on
the top of cartridge.

2.3.2 Setting the Write-Protect Switch
Observe the following guidelines when setting the write-protect switch.
See Figure 2-3.

If you are reading data or copying data from a tape, set the writeprotect switch to SAFE (write protected).

If you are writing data, set the write-protect switch to the writepermit position.

Write—Permit Position

Write—Protect Position
SHR-XR0044-80

Figure 2-3

Setting the Write-Protect Switch

2-6

Operating Procedures

2.3.3 Inserting the Tape Cartridge into the Drive
Open the drive door by pressing the eject button. Insert the tape cartridge
into the drive with the cartridge’s write-protect switch in the upper right
corner (see Figure 2-4.) Slide the cartridge straight into the cartridge
area until you feel resistance. Then, close the cartridge door.
When the tape is properly inserted, the LED will be solid green and you
can issue host operating system commands.

SHA-XA00as-20

Figure 2-4

Inserting the Tape Cartridge

2.3.4 Removing the Tape Cartridge from the Drive
After the tape is dismounted via software, the LED changes from blinking
green to either solid green or off, and you can remove the tape from the
drive.

Press the eject button. The door will open and the cartridge will eject part

vs;_a{; P;}ll down on the cartridge door, grasp the cartridge and slide it out

of the

drive.

Operating Procedures

2-7

2.3.5 Retensioning
For satisfactory performance we recommend that the cartridge be
retensioned (running the tape one eomplete end-to-end p:ass)in any of

the following cases:

Eachfimeztxsms@edmthednve

2. Afler prolonged operation over a limited area.
|

exposure to a temperature change greater than 30°F (16°C).

4, Afier one hour of start-stop or shuffle amtasa

The retension functionis supported for the TZK10 tape enly The
retension command may be dlfl’erent for other operating systems or

tape unlitles Please refer to the apprapnate system documentation.

2.3.5.1ULTRIX
Retension the tape by performing the fallowmg ULTRIX command:
mt -f /ée?/mtzzh ret

where n equals the dnve unit number.

2.3.5.2 VMS

Retension the tape by performing the following VMS eemmands
1.

Mount the drive /FOREIGN

2. Issue one of the following commands:

SET MAGTAPE/REWIND/RETENSION
Rewinds tape to BOT after a retension is performed.

The tape will be left "unloaded", not dismounted.
3.

Example:

$ MOUNT/FOREIGN MKA500

$ SET MAGTAPE/REWIND/RETENSION MKA500

2-8

Operating Procedures

2.3.5.3 SCO UNIX

Retension the tape by perfcrmmg the fellomng SCO UNIX eammand
TAPE RETEN

2.4

SCSIID Settings

This section shows how each Small Computer Systems Interface (SCSI)
device’s ID is determined and set. TZK10 tape drives are preset to the
appopropriate SCSI ID for thesystem during manufacturing and, in most
cases, the SCSI ID should not need to be changed. The only time these
SCSI IDs may have to be changedis when a TZKIO tape driveis mstalled
as an add-on te a system
NOTE
You cannot have two or more SCSI devices with the same SCSI ID.
Each SCSI device must have its own SCSI ID.
The SCSI IDis set or changed by adding
j
Jumpers to or removmg

jumpers frsm, a connector at the rear of the tape drive. This connector is
illustratedin Figure 2-5.

Table 2-3 lists the jumper settings necessary te eenfigure the TZKIO tape
drive for a particular SCSI ID.

2.4.1 Auto Density Select and Terminator Power
Auto density select and terminator power are set or chaa@d by adding

jumpers to, or removing jumpers from, a connector at the rear of the tape
drive. This connectoris illustratedin Figure 2-5.
The disable auto density select (DADS) and terminator power

(TERMPWR)jumpers are set to the appropriate system configuration
during manufacturing.

Table 2-3

TZK10 SCSI ID Jumper Settings
SCSI ID Jumpert Positions

. SEL2

~Out

|
‘

SELI
~

Out

SELO
Out

Out

§Default ID for the

FEE

Out

-1 O &

Out

SCSI ID

K10 tape drive in most Digital systems.

tdumper Part Number - 12-14314-00

2-10 Operating Procedures

SHR-XR0107-80

Figure 2-5

Layout of the Jumper/Strap Connector

Operating Systems Support

3.1

TZK10 Operating Systems Support

The material in this chapter is for your reference. Because operating
system commands are a complex tool, this chapter is not intended to
- teach you all the details involved in using such commands.
The TZK10 cartridge tape drive reads and writestapes in many different
densities and formats that are specified by the International Quarter Inch

(QIC) Cartridge Standards Committee. The drive also supports an auto

density selection feature thatis used differently by different operating
systems. This chapter descnbes the way different operating systems use
the following features:
»

The 512 byte block size vs. 1K blocks in 320MB/525MB density.

Auto density selection in the read case.

Auto density selection in the write case.

3.1.1

VMS Support

The TZK10 cartridge tape driveis supported by VMS version 5.4-2 or
higher.

3.1.2 Ultrix Support
ghi TZK10 cartridge tape driveis supperted by Ultrix version 4.1 or
igher.

3-1

3-2

Operating Systems Support

3.1.3 512 Byte Blocks, 1 K Blocks, and Variable Records in
320/525 MByte Density

The QIC standards specify three formats for the 320/525 MB density. In
all three cases the on-tape data format is 1K fixed blocks.

512 byte

fixed block

The 512 byte fixed block format takes two 512 byte user data
blocks and writes one 1K block on tape. This format has the

advantage that all other density QIC tapes are written in 512
‘Replacing older QIC tape drives with new density
byte blocks.

drives takes little or no operating system changes.

1K fixed

' This format is the native format for this density. User data is

Variable
record tapes

This format takes user data and creates one or more fixed
length blocks. The byte count is recorded in the first block and

written directly as 1K data blocks.

block

the last block is zero filled. In this way, the drive appears to
read and write variable length records.

The following sections discuss the effects that the three formats have on
the ULTRIX and SCO UNIX operating systems.

3.1.3.1 Effects on the ULTRIX Operating System

The ULTRIX operating system will operate the TZK10 tape drive in fixed
block 512 byte mode. This mode allows for data interchange with the
largest number of other UNIX systems.

ULTRIX/UWS Version 4.1 was shipped with the block size set to 1K data
blocks. Instructions explaining how to change the block size to 512 bytes
were shipped with the TZK10 tape drive. These instructions also explain
how to return to reading and writing 1K records if the user so desires.
The block size will not affect capacity or performance of the tape drive.
3.1.3.2 Effects on the SCO UNIX Operating System

Systems running SCO UNIX only support 512 byte fixed block. In this

mode of operation data can be interchanged with Ultrix systems and most

other UNIX and MS-DOS systems.

L |

Operating Systems Support

3-3

3.1.3.2.1 VMS
VMS systems will only support the drivein high density ( 320/525 MB )
variable block mode. This mode allows the drive to be used like any other
VMS tape drive.

3.1.4 Auto Density Select in the Read Case
The TZK10 tape drive performs automatic density selection when the
tape driveis positioned at Beginning of Tape (BOT) and receives a read
command. Because there are two formats of fixed block operations, the
drive can be set up in the factory to default to either format. The TZK10
is set to 512 byte block format.
The following sections discuss the effects that auto density select in the
read case has on the ULTRIX and SCO UNIX operating systems.

3.1.4.1 Effects on the ULTRIX and SCO UNIX Operating Systems
In fixed block mode operation, auto density select in the read case allows
the user to select any tape density and the drive will still read the data.
Note that if the data is written in variable block mode or 1K fixed block
mode, the data is not readable.

3.1.5 Auto Density Select in the Write Case
This feature allows the TZK10 tape drive to select the density the tape is
written. When this feature is enabled the TZK10 writes the tape in the
highest density supported by the current cartridge. When the feature is
disabled the host system sets the density. If the user selects a density
higher than supported by the media an error is returned.
This feature is controlled by a jumper on the back of the drive. When
the Disable Auto Density Select (DADS) jumper is inserted, the feature is
disabled.

3.1.5.1 Effects on the ULTRIX Operating System
For ULTRIX operating systems, auto density selectis disabled when
writing to the TZK10. The ULTRIX operating system provides the
following four pairs of devices to select the density, allowing the user
to write lower densities on high density tapes for interchange:

rmtOh/nrmtOh - High density (320/525 MByte)
o

rmtOm/nrmtOm - Medium density (150 MByte)

rmtOl/nrmt0l] - Low density (120 MByte)

rmtOa/nrmtOa - alternate density (QIC-24), read only

3-4

Operating Systems Support

3.1.5.2 Effects on the SCO UNIX and MS-DOS Operating Systems
In the SCO UNIX and MS-DOS operating systems, there is no user
control of density select. The tape drive always determines the correct
density.

3.1.5.3 Effects onthe\ms Operating System

VMS supports only high denszty (32OMB/525MB) variable block mode.

4
Preventive Maintenance and Problem
Resolution
This chapter describes prevent;ve mamtemee and problem selmg for

the TZK10 cartridge tape drive. Pre?entzve maintenance involves periodic
head cleaning. Problem solvingisdescribedin Section 4.3.
Digital Equipment Corporation strongly recommends that yeu follow the
instructions for handling cartridge tapes, retensioning the cartridge tapes,
and cleaning theheads of the drive.

4.1

Cleaning the Heads

The heads are the components in a drive that physically read and write
data to and from the media (in this case, a cartridge tape).

Recommended equipment for head cleaning is Digital Cleaning

Cartridge, part number TZK1X-HA. Refer to the tape head cleaning
instructions included with the cleaning cartridge.

The cleaning interval depends on three main factors:

1. How often the drive is used
2.

The quality of the tape

The quality of the environment

However, the following can be used as a recommended guideline: Clean
the head after every 8 hours of use.

4.2

System-Based Diagnostics

Your system has system-baéed diagnostics that can be used to test the
TZK10 tape drive.

System-based diagnostics are usually referred to in your system owner’s
manual as console-based diagnostics, self-tests, or system exercisers. Refer
to your system documentation for information about these diagnostics.
4-1

4-2

Preventive Maintenance and Problem Resolution

Prior to calling Customer Services, you can execute system diagnostics to
test the TZK10 drive. Always try cleaning the head and using a different
cartridge before calling Customer Services.

NOTE

Some system-based diagnostics are subject to software licensing.
Consult your Digital Eqnipmgnt Corporation sales representative.

4.3 Tape Drive and Media Errors
If a drive error occurs durmg an operation, you may be able to clear the

fault, rewind, unload, and remove the tape cartridge.

If the amber LED goes out when you remove the cartridge, the error
is likely media related or due to a dirty head. Clean the head and try
another cartridge.

If the amber LED stays on when you remove the cartridge, call

your authorized Digital Equipment Corporation Customer Services
representative.

4.4

Repair Services

Dligital Equipment Customer Services offer a range of flexible service
plans.

4.4.1 On—Slte Service
On-Site Service offers the convenience of service at your site, and
insurance against unplanned repair bills. For a small monthly fee, you
receive personal service from our Customer Services Specialists. Within
a few hours, the specialist is dispatched to your site with equipment and
parts to give you fast and dependable maintenance.

4.4.2 Basic Service
Basic Service offers full coverage from 8 a.m. to 5 p.m., Monday through
Friday. Options are available to extend your coverage to 12-, 16-, or 24-

hour days, and to Saturdays, Sundays, and holidays. Under the basic
service plan, all parts, materials, and labor are covered in full.
L

Preventive Maintenance and Problem Resolution

4-3

4.4.3 DECservice
DECservice offers a premium, on-site service providing committed
response to remedial service requests made during contracted hours
of coverage. Remedial maintenance will be performed continuously until
the problem is resolved, which makes this service ideal for customers
requiring maximum service performance. Under DECservice, all parts,
materials, and labor are covered in full.

4.4.4 Carry-In Service
Carry-In Service offers fast, personalized response, and the ability to plan
your maintenance costs for a smaller monthly fee than On-Site Service.
When you bring your unit to one of 160 Digital SERVICenters worldwide,
factory-trained personnel repair your unit within 2 days. This service is
available on selected terminals and systems. Contact your local Digital
Equipment Customer Services office to see if this service is available for
your unit. Digital SERVICenters are open during normal business hours,
Monday through Friday.

4.4.5 Per Call Service
Per Call Service offers a maintenance program on a noncontractual,
time-and-materials-cost basis. It is appropriate for customers who have
to perform first-line-maintenance, but may occasionally need in-depth
support from Digital Equipment Customer Services.

Related Supplies
To order additional blank cartridges and head cleaning cartridges, contact
either your Digital Equipment sales representative or DECdirectTM. Refer
to the following part numbers.

Table A—-fl Ordering cartridges
Part No.
~ Cartridge
TZK1X-CB

Five blank 320 megabyte data cartridges

TZK1X-CD

Five blank 525 megabyte date cartridges

TZK1X-HA

One head cleaning cartridge

A-1

TZK1 0 Cartrldge Tape Dnve
Specmcahons
The following table describes the TZK10 cartridge tape drive
specifications.

Table B-1

TZK10 Cartridge Tape Drive Specifications

Mode of

Streaming

operation:

Drive interface:

SCSI-2

Dimensions:

44)§1m(1732 in)H
x 146.056
mm (5.75 1n)Wx20828m(820
in

Weight
(without
cartridge):

1.1 kg (2.4 Ibs)

Media:

DC6320/DC6525 or Digital approved equivalent see Table 2-2

Track width,

0.1778 mm +0.0000/-0.0127 mm (0.0070" +).0000"/-0.0005"

write:

Track width,
read:

0.1270 mm +0.0127/-0.0000 mm (0.0050" +).0006"/-0.0000"

Data density:

16,000 (bpi)

Number of
tracks:

Transfer rate:

200 Kbytes/s at average streaming mode
1.5 Mbytes/s at SCSI (maximum)

Tape speed:

3.05 cm/s (120 ips)

Track format:

Multiple track serpentine recording

Cartridge

320 Mbytes, formatted (approx.)
- DC6320

capacity:

B-1

B-2

TZK10 Cartridge Tape Drive Specifications

Table B-1 (Cont)

TZK10 Cartridge Tape Drive Specifications
526 Mbytes, formatted (approx.)

Power
requirements:

Power

consumption

Nominal:

+12V £ 5% @ 1.0 A (2.0 A surge),
160 mV ripple peak-to-peak

+6 V + 5% @ 1.2 A (1.8 A surge),
1560 mV ripple peak-to-peak

20W
33W

5°C (50°F) to 40°C (104°F)
-30°C (-22°F) to +60°C (161°F)
~

temperature:

Operating

20% to 80% RH maximum

Non-

10% to 90% RH maximum

humidity:

operating

humidity:

Operating

2.4 km (13,000 ft)

Non-

4.9 km (40,000 ft)

altitude:

operating

altitude:

IndeXx
A

Auto density
selection, 3—1

Heads
cleaning, 4-1

Auto density select
DADS jumper, 3-3
write, 3-3

cleaning cartridge, 4-1

L
LED summary, 2-1

C
Cleaning the heads
cleaning cartridge, 4-1
frequency, 4-1

Controls and indicators, 2-1
eject button, 2-2
LED, 2-1

o
Operating systems
MS-DOS, 34
SCO UNIX, 3-2, 34

ULTRIX, 3-2, 3-3
VMS, 3-3, 34
Ordering cartridges, A-1

D
Digital Equipment Repair Services,
4-2

E
Eject button, 2-2
Errors
drive, 4-2
media, 4-2

R
Retensioning
SCO UNIX command, 2-8
ULTRIX command, 2-7
VMS command, 2-7

S
SCSI ID
default, 2-8
jumpers, 2-8

setting, 2-8

index

Index

SCSI ID (Cont.)
table, 2-8
TZK10 default, 2-8
Specifications, B-1

T
capacity, 2-3
density selection, 2-3

insertion, 2-6

removal, 2-6

retensioning, 2-7
use, 2-6
Tape cartridges
ordering, A-1
Tape density
formats, 3-1, 3-2