Copyright
© Copyright 2008 Tandberg Data Corporation.
All rights reserved.This item and the information contained herein are the property
of Tandberg Data Corporation. No part of this document may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language
or computer language in any form or by any means, electronic, mechanical,
magnetic, optical, chemical, manual, or otherwise, without the express written
permission of Tandberg Data Corporation, 2108 55th Street, Boulder, Colorado
80301.
DISCLAIMER: Tandberg Data Corporation makes no representation or warranties
with respect to the contents of this document and specifically disclaims any implied
warranties of merchantability or fitness for any particular purpose. Further, Tandberg
Data Corporation reserves the right to revise this publication without obligation of
Tandberg Data Corpor ation to notify an y person or organization of such revision or
changes.
TRADEMARK NOTICES: T andberg Data Corporation trademarks:T andberg Data,
Exabyte, the Exabyte Logo, EZ17, M2, SmartClean, VXA, and VXAtape are
registered trademarks; MammothTape is a trademark; SupportSuite is a service
mark. Other trademarks: All other product names are trademarks or registered
trademarks of their respective owners.
The most current information about this product is availab le
at Tandberg Data’s web site (http://
www.tandbergdata.com).
Note:
Part Number
1018932
1018932DAT USB Tape Drives
2
Contents
..About this guide ................................................................... VII
..Intended audience ........................................................................................ VII
..Technical suppor t ......................................................................................... VII
..Product warranties ........................................................................................ VII
..Document conventions and symbols ............................................................ VII
1 ..Before you start ................................................................... 9
..DAT tape drive models .................................................................................... 9
..Which operating systems are supported? .................................................... 10
..How do I connect the drive to my server? ..................................................... 11
..What are the mounting requirements for an internal tape drive? .................. 11
..Power requirements ...................................................................................... 11
..Drivers .......................................................................................................... 11
..Backup software ........................................................................................... 12
2 ..Installing an internal DAT tape drive ................................ 13
..Prepare mounting bay .................................................................................. 13
..Attach mounting hardware ........................................................................... 14
..Install drive .................................................................................................... 15
..Attach cables ................................................................................................ 16
..Secure the drive ........................................................................................... 17
3 ..Installing an external DAT tape drive .............................. 19
..Important information before you start .......................................................... 19
..Connecting the power and USB cables ........................................................ 19
4 ..Verify installation ............................................................... 21
5 ..Operating your tape drive ................................................. 23
..Front panel .................................................................................................... 24
..LED sequences ............................................................................................ 24
..LED sequences for the DAT 160 tape dr ive ........................................... 24
..LED sequences for the DAT 72 tape dr ive ............................................. 26
..Loading and unloading cartridges ................................................................ 28
..Inserting car tridges ................................................................................ 28
..Removing cartridges .............................................................................. 29
..Removing power from the drive .................................................................... 29
3
#August 2009
6 ..Use the correct media ....................................................... 31
..Data cartridges ............................................................................................. 31
..DAT 160 tape drives and DAT 160 cartridges ........................................ 31
..Compatibility .................................................................................... 31
..Write-protecting cartr idges ........................................................................... 32
..Cleaning cartridges ....................................................................................... 33
..Handling cartridges ....................................................................................... 34
..Getting the most out of cartridges and dr ives ............................................... 34
7 ..Troubleshooting ................................................................. 37
..General Procedure ....................................................................................... 37
..Verifying USB installation for optimum performance ..................................... 38
..Check for USB 2.0 port (Windows) ........................................................ 39
..Ensure that the tape drive is the only device on a USB hub (Win-
dows) ........................................................................................................ 39
..Ensure that the hp_usbstor driver is being used (Windows) .................. 39
..Check drivers (Linux) ............................................................................. 40
..Problems with cartridges .............................................................................. 40
..The cartridge is jammed ........................................................................ 41
..The drive will not accept the cartridge (or ejects it immediately) ............ 41
8 ..USB Configuration Guide .................................................. 43
..USB in DAT devices ...................................................................................... 43
..USB terminology ........................................................................................... 43
..Setting up a USB network ............................................................................. 44
..USB cables ................................................................................................... 45
..Index ....................................................................................... 47
1018932DAT USB Tape Drives
4
Figures
Front view of DAT 160 tape drive ............................................ 10Figure 1-1
Front view of DAT 72 tape drive .............................................. 10Figure 1-2
Example, attaching mounting screws ..................................... 15Figure 2-1
Installing the tape drive ........................................................... 16Figure 2-2
Attaching cables ..................................................................... 17Figure 2-3
Securing drive example 1, mounting hardware used .............. 18Figure 2-4
Securing drive example 2, no mounting hardware used ......... 18Figure 2-5
Connecting power and USB cables ........................................ 20Figure 3-1
Front panel, DAT 160 tape dr ive ............................................. 24Figure 5-1
Front panel, DAT 72 tape dr ive ............................................... 24Figure 5-2
Inserting a data cartridge (into a DAT 160 external
drive) ....................................................................................... 28
Figure 5-3
Ejecting a cartridge (from an external drive) .......................... 29Figure 5-4
Write protecting a cartridge .................................................... 33Figure 6-1
5
#August 2009
Tables
Document conventions .......................................................... VIIITable 1
Power requirements ................................................................ 11Table 1-1
LED sequences for DAT 160 ................................................... 25Table 5-1
LED sequences for DAT 160, continued ................................. 26Table 5-2
Data cartridge compatibility .................................................... 32Table 6-1
Cleaning cartridge compatibility .............................................. 33Table 6-2
6
#August 2009
About this guide
This guide provides information about:
• Installing the Tandberg Data DAT USB tape drive
• Using the Tandberg Data DAT USB tape drive
• Troubleshooting the Tandberg Data DAT USB tape drive
Intended audience
This guide is intended for users who install, operate and maintain the
Tandberg Data DAT tape drive.
Technical support
For worldwide technical support information, please visit the support pages
at http://www
.tandbergdata.com.
Before contacting support, collect the following information:
• Product model names and numbers
• Technical support registration number (if applicable)
• Product serial numbers
• Error messages
• Operating system type and revision level
• Detailed questions
Product warranties
For information about product warranties, please visit the support pages at
http://www
.tandbergdata.com.
Document conventions and symbols
Provides additional information.
Note:
VII
#August 2009
Indicates that failure to follow directions could result
in bodily harm or death.
Warning
Indicates that failure to follow directions could result
in damage to equipment or data.
Caution
Provides clarifying information or specific instructions.
Important
!
Table 1 Document conventions
ElementConvention
Cross-reference links and e-mail addresses
Blue text:Table
1 on page VIII
website addresses
Blue, underlined text:http:/
/www.tandbergdata.com
Bold text
• Keys that are pressed
• Text typed into a GUI element, such as a
box
• GUI elements that are clicked or selected,
such as menu and list items, buttons,
tabs, and check boxes
Text emphasisItalic text
Monospace text
• File and directory names
• System output
• Code
• Commands, their arguments, and argument values
Monospace, italic
text
• Code variables
• Command variables
Emphasized monospace text
Monospace, bold text
1018932DAT USB Tape Drives
VIII
About this guide
1
Before you start
In this chapter:
•“DAT tape drive models” on page 9
•“Which operating systems are supported?” on page 10
•“How do I connect the drive to my server?” on page 11
•“What are the mounting requirements for an internal tape drive?” on page 11
•“Drivers” on page 11
•“Backup software” on page 12
DAT tape drive models
This guide describes how to install and operate the following Tandberg Data
DAT USB tape drive models:
• Tandberg Data DAT 160 internal and external tape drive
• Tandberg Data DAT 72 internal and external tape drive
For a detailed product specification, please visit the support pages at http:/
/www.tandbergdata.com.
9
#August 2009
4. Ready LED1. Clean LED
5. Eject button2.Tape LED
3. Drive LED
Figure 1-1 Front view of DAT 160 tape drive
1
3
2
3. Eject button1. Clean LED
2.Tape LED
Figure 1-2 Front view of DAT 72 tape drive
Which operating systems are supported?
1018932DAT USB Tape Drives
10
Chapter 1–Before you start
DAT tape drives can be connected to servers running under Windows®,
Linux and other major operating systems. Please visit the support pages at
http://www
.tandbergdata.com for the most recent information about the
operating system versions that are supported.
How do I connect the drive to my server?
For optimum perf ormance the drive should be connected to a USB 2.0 port
and it should be the only device on the USB bus. Although the tape drive
will function on USB 1.1, performance will be severely degraded. See also
“Verifying USB installation for optimum performance” on page 38.
What are the mounting requirements for an internal tape drive?
You need one industry-standard, 5¼-inch, half-height bay in which to install
the Tandberg Data DAT tape drive. For many servers, no mounting tray or
rails are required. Devices simply slide into the server's chassis and are
fixed with screws. Other servers have built-in trays or rails.
Some servers use non-standard mounting rails and do not include spares.
If this is the case with your system, you will hav e to order these accessories
from the server manufacturer before you can install the tape drive.
Power requirements
Power requirements are:
Table 1-1 Power requirements
Maximum CurrentTypical CurrentVoltage
DAT 72DAT 160DAT 72DAT 160
0.8 A1.61 A0.7 A1.54 A5 V
1.0 A1.3 A0.3 A0.26 A12 V
Drivers
Two drivers are required in order to use DAT USB tape drives.
11
#August 2009
How do I connect the drive to my server?
The manufacturer's Tape driver is suitable for use in most applications, but
refer also to the documentation of your software application to ensure you
are using the recommended driver.
On Windows systems, we strongly recommend that you use the installer
package supplied by your man ufacturer to install the driv ers. Updates to the
drivers may be provided from time to time on http://www.tandbergdata.com.
We recommend that these are installed after using the installer package.
On Linux and UNIX operating systems, drivers are included with the operating
system and should be loaded automatically.To upgrade drivers we
recommend that you patch to the latest version of the operating system.
Backup software
For optimum perf ormance it is important to use a backup application that is
appropriate for your system's configuration. In a direct attach configuration,
where the tape drive is attached to a standalone server, y ou can use backup
software that is designed for a single server environment. In network
configurations you will need backup software that supports enterprise
environments.
Further details about suitable products can be found on http://
www.tandbergdata.com. It is important to check for software compatibility
and install any recommended upgrades.
Certain backup applications require you to use their own
Tape driver instead of the manufacturer's Tape driver.
Note:
The NT backup application is compatible with DAT tape
drives, but the user must always choose 4 mm tape even
Note:
when using 8 mm tape with a Tandberg Data DAT 160
tape drive.
1018932DAT USB Tape Drives
12
Chapter 1–Before you start
2
Installing an internal DAT
tape drive
In this chapter:
•“Prepare mounting bay” on page 13
•“Attach mounting hardware” on page 14
•“Attach cables” on page 16
•“Secure the drive” on page 17
Please refer to “Installing an external DAT tape drive” on page 19, if you
are installing an external DAT tape drive.
It is important to ensure that you connect your drive to a USB 2.0
port.The drive will work on a USB 1.1 port but performance will
Note:
be severely degraded. See also
“Verifying USB installation for optimum performance” on page 38.
Prepare mounting bay
You need one industry-standard, 5¼-inch bay in which to install the DAT
tape drive.
To avoid personal injury or damage to the server or
tape drive, ensure that the server is disconnected
Warning
from the mains power supply while you install the
drive.
Static electricity can damage electronic components.
Always wear an antistatic wriststrap if one is
Caution
available. If not, after you have disconnected power
13
#August 2009
from the server and removed the cov er , touch a bare
metal part of the chassis. Similarly, touch a bare
metal part of the drive before installing it.
1. Refer to your server documentation for detailed instructions and
assemble the necessary tools and materials.
2. Perform a normal system shutdown and turn off the server and any
connected peripherals.
3. Remove the cover and access panel from the server, as detailed in
your server's documentation.
As you work inside the server, y ou ma y hav e to disconnect other signal
cables or power cables from other devices to maneuver the new drive
into place. If you have to do this, make a note of their position and
connections so you can put them back correctly later.
4. Remove the filler panel from a spare 5¼-inch bay of your server, as
described in your server's documentation.With some servers you may
also need to remove the half-height device divider. Keep any screws
for use in “Secure the drive” on page 17.
5. You are now ready to install your tape drive.
Attach mounting hardware
If your server requires special rails or other hardware to install the tape drive ,
mount them on the tape drive now.If your server does not require special
mounting hardware, ignore this section.
Different models of server require different mounting methods . Please check
your server documentation to ascertain the correct method of mounting, and
to check whether mounting hardware is provided with the server or must be
purchased separately.
If mounting hardware is supplied with your tape drive, it
may not be exactly the same as sho wn in the illustrations.
Note:
1018932DAT USB Tape Drives
14
Chapter 2–Installing an internal DAT tape drive
2
1
2. M3 offset mounting screws1. M3 mounting screws
Figure 2-1 Example, attaching mounting screws
Install drive
Static electricity can damage electronic components.
Always wear an antistatic wriststrap if one is
Caution
available. If not, after you have disconnected power
from the server and removed the cov er , touch a bare
metal part of the chassis. Similarly, touch a bare
metal part of the drive before installing it.
Slide the tape drive into the open bay, aligning the tray or rails with the slots
in the bay.
15
#August 2009
Install drive
Figure 2-2 Installing the tape drive
The illustration shows a tape drive that has mounting rails fitted. If your
server does not use mounting hardware, check that the holes in the chassis
are aligned with the holes in the side of the tape drive.
Do not secure the drive at this point because you may have to move the
drive to get the cables into place.
Attach cables
The drive is not powered from the USB bus. It must be connected to the
server's power supply.
The tape drive is connected to a internal USB port on your server. Use the
schematic on the inside of the server panel to check whether the server has
an internal USB port and locate its position. If y our server does not hav e an
internal USB 2.0 port, you will need to purchase and install a suitable USB
host adapter before connecting the USB tape drive. Please visit the support
pages at http://www
.tandbergdata.com for recommended products.
1. Use a USB cable with a 4–pin Intel connector to connect to the server.
Use cable ties, as required, to tidy excess cable length.
1018932DAT USB Tape Drives
16
Chapter 2–Installing an internal DAT tape drive
2. Attach a spare power cable from the server's internal power supply to
the power connector.
3. USB cab le to server's USB port1. USB cable to tape drive
2. power cable
Figure 2-3 Attaching cables
Secure the drive
Secure the drive, as described in your server documentation. Ensure blanking
plates are in place over empty bays and replace the cover on the server.
17
#August 2009
Secure the drive
1. plastic rail
2. server latch, push down to lock the tape drive into position
Figure 2-4 Securing drive example 1, mounting hardware used
1. M3 screws, supplied with tape
drive
Figure 2-5 Securing drive example 2, no mounting hardware used
1018932DAT USB Tape Drives
18
Chapter 2–Installing an internal DAT tape drive
3
Installing an external DAT
tape drive
In this chapter:
•“Important information before you start” on page 19
•“Connecting the power and USB cables” on page 19
Please refer to “Installing an internal DAT tape drive” on page 13, if you are
installing an internal DAT tape drive.
Important information before you start
An external DAT drive will operate using any voltage in the range 100–240
volts (0.7 A, 50-60 Hz). No adjustment is needed.
A power cord is provided with your DAT tape drive.The USB 2.0 cable is
already fitted to the tape drive, you cannot remove it.
The drive is not powered from the USB bus. It must be connected to the
mains power supply.
Connecting the power and USB cables
1. Make sure that the drive is switched OFF (O side down).The power
switch is on the rear panel.
19
#August 2009
2. Plug the power cable securely into the socket on the rear panel of the
drive and plug the other end of the power cable into the power outlet.
3. power cable1. USB cable (pre-fitted)
2. on/off switch
Figure 3-1 Connecting power and USB cables
3. Plug the USB cable into the USB connector on the server.
It is important to ensure that you connect your drive to a USB 2.0
port.The drive will work on a USB 1.1 port but performance will be
severely degraded. See also
“Verifying USB installation for optimum performance” on page 38.
Note:
1018932DAT USB Tape Drives
20
Chapter 3–Installing an external DAT tape drive
4
Verify installation
Once you have installed the drive hardware, check that drivers have been
installed correctly and you hav e the correct version of bac kup software, and
verify that the tape drive is functioning properly before you store y our valuable
data.
Certain backup applications require you to use their own
Tape driver instead of the HP Tape driver.
Note:
1. Switch on the drive and the server.
2. The tape drive will run its hardware self-test, which takes about 5
seconds. At the end of the hardware self-test:
• DAT 160 drives: If self-test passes, the green Ready LED flashes
and then shows steady green. If the test fails, the Drive Error and
T ape Error LEDs flash, while the Ready and Clean (or Use Cleaning
Cartridge) LEDs are off.This continues until the drive is reset.
• DAT 72 drives: If self-test passes, both front panel lights should be
off. If a hard error causes the self-test to f ail, the clean light changes
to steady amber.
See “Front panel” on page 24 for more information about front
panel lights.
3. Make sure the correct drivers are installed.
• Installing drivers (Windows)
We recommend that you download the latest driver from http://
www.tandbergdata.com before installation. If the Windows Found
New Hardware wizard runs, f ollow the on-screen instructions to install
drivers from the download location.
• Installing drivers (other operating systems)
Drivers are included with the operating system and should be loaded
automatically.To upgrade drivers we recommend that you patch to
the latest version of the operating system.
21
#August 2009
4. Verify that the tape drive installation was successful.
If you encounter a problem during this verification procedure, turn to
“Troubleshooting” on page 37 for help in diagnosing and fixing the
problem.
5. For all operating systems ensure that you have downloaded any
upgrades necessary for your backup application. Check http://
www.tandbergdata.com for software compatibility and install any
recommended upgrades.
6. Carry out a backup and restore test to check that the drive can write
data to tape. Use a blank cartridge.
Native backup applications can be used to check basic tape drive
operation, but they may not support all the advanced features of your
tape drive.We recommend that you upgrade your software application
before running this test.
1018932DAT USB Tape Drives
22
Chapter 4–Verify installation
5
Operating your tape drive
In this chapter:
•“Front panel” on page 24
•“LED sequences” on page 24
•“Loading and unloading cartridges” on page 28
•“Removing power from the drive” on page 29
23
#August 2009
Front panel
5. drive LED1. cartridge slot
6. ready LED2. power LED (external drives only)
7. eject button3. clean LED
4. tape LED
Figure 5-1 Front panel, DAT 160 tape drive
4. tape LED1. cartridge door
5. power LED (external drives only)2. eject button
3. clean LED
Figure 5-2 Front panel, DAT 72 tape drive
LED sequences
1018932DAT USB Tape Drives
24
Chapter 5–Operating your tape drive
LED sequences for the DAT 160 tape drive
The meaning of different patterns of LEDs is as follows:
Table 5-1 LED sequences for DAT 160
Action requiredCauseLED Sequence
Make sure the drive is switched on.
The power on/off switch incorporates
a green LED.
If this is not on, check the power cab le
connection and replace the cable if
necessary.You can use the power
cable from your monitor or another
device to check that the connection is
working.
If the power supply is present and all
LEDs remain off, power cycle or reset
the drive. If it still fails, call for service.
Drive may
not have
power, may
be faulty or
may have
been power
cycled or
reset during
a firmware
upgrade.
All LEDs OFF.
None.This is normal.
The drive is
ready for
operation.
Ready is ON.
None.
If the drive is upgrading firmware, do
not reset or power cycle it.
If the drive is cleaning, the cleaning
cartridge will eject on completion. The
cleaning cycle can take up to 5 minutes
to complete.
The drive is
carrying out
a normal
activity (read,
write, clean).
Ready
FLASHES.
Load the DDS cleaning cartridge. See
“Cleaning cartridges” on page 33 for
supported cartridges and instructions.
If the Clean LED is still flashing when
you load a new or known good data
cartridge after cleaning, call for service.
The drive
requires
cleaning.
Clean FLASHES.
25
#August 2009
LED sequences
Table 5-2 LED sequences for DAT 160, continued
Action requiredCauseLED Sequence
Unload the tape cartridge. Make sure
that you are using the correct format
cartridge. (See “Use the correct
media” on page 31.)
Reload the cartridge. If the Tape LED
still flashes or starts flashing during the
next backup, load a new or known
good cartridge.
If the Tape LED is now off, discard the
'suspect' tape cartridge. If it is still on,
call for service.
The drive
believes the
current tape
or the tape
just ejected is
faulty.
Tape FLASHES.
Load a new cartridge. If the error
persists, power cycle or reset the drive .
If the Drive LED remains on, call for
service.
The drive
mechanism
has detected
an error.
Drive FLASHES.
Insert a cartridge to clear the LED
sequence. If the condition persists, call
for service.
There is a
firmware
download
problem.
Drive, Tape and
Ready FLASH.
LED sequences for the DAT 72 tape drive
There are two LEDs, labeled Tape and Clean. The meaning of different
patterns of LEDs is as follows:
1018932DAT USB Tape Drives
26
Chapter 5–Operating your tape drive
MeaningClean LEDTape LED
The cartridge is loaded and the drive is
ready.
offon
The cartridge is loading or unloading, or
self-test is in progress.
offflashing slowly
The cartridge is loaded, activity is occurring.
off
flashing rapidly
This is the Error Condition Signal. DAT
drives perform a comprehensive self-test
during power-up. If a hard error causes
the self-test to fail, the clean light
changes to steady amber.
onoff or flashing
This is the Media Caution Signal.
flashing slowlyoff or flashing
1. Wait for the current operation to
finish, then insert a different tape
and repeat the operation that was
being performed.
2. If the media caution signal does not
show this time, it indicates that the
original cartridge was nearing the
end of its useful life. Copy any data
you want to keep from the original
tape onto a new tape if possible,
then discard the old tape.
3. If the media caution signal appears
again with the second tape, the tape
heads need cleaning.
4. If the media caution signal appears
after using a cleaning cartridge, the
cleaning cartridge has probably expired and should be discarded.
27
#August 2009
LED sequences
Loading and unloading cartridges
Inserting cartridges
1. Insert a cartridge into the slot on the front panel. As the cartridge is
inserted, the drive takes it and performs a load sequence.
The illustration shows a DAT 160 cartridge.These
cartridges are wider than earlier-format DDS
cartridges and can only be used with DAT 160 tape
drives. See “Data cartridges” on page 31 for more
information about tape drive and cartridge
compatibility.
Note:
1. cartridge slot
2. arrow indicates leading direction
Figure 5-3 Inserting a data cartridge (into a DAT 160 external drive)
2. DAT 160 tape drives: The Ready light flashes green while the drive
performs its load sequence.When the cartridge is loaded, the Ready
light shows steady green.
DAT 72 tpe drives: The Tape light flashes green while the drive
performs its load sequence.When the cartridge is loaded, the Tape
light shows steady green.
1018932DAT USB Tape Drives
28
Chapter 5–Operating your tape drive
Removing cartridges
Never try to remove a cartridge before it is fully
ejected.
Caution
1. Press the Eject button on the front panel.
1. eject button
Figure 5-4 Ejecting a cartridge (from an external drive)
2. The drive completes any task it is currently performing, winds the tape
to the beginning, and ejects the cartridge.The sequence will take about
25 seconds for a write-enabled cartridge and 10 seconds for a
write-protected cartridge.
Removing power from the drive
To ensure reliable operation, do not remove power from the drive during
read, write, fast-search, load and unload activities.
29
#August 2009
Removing power from the drive
1018932DAT USB Tape Drives
30
Chapter 5–Operating your tape drive
Notes
6
Use the correct media
For best performance we recommend branded media, as recommended b y
your manufacturer.
In this chapter:
•“Data cartridges” on page 31
•“Write-protecting cartridges” on page 32
•“Cleaning cartridges” on page 33
•“Handling cartridges” on page 34
•“Getting the most out of cartridges and drives” on page 34
Data cartridges
DAT 160 tape drives and DAT 160 cartridges
DAT 160 cartridges can only be used with DAT 160 tape drives; they are
wider than earlier formats and will not fit into earlier tape drive models. DAT
160 cartridges provide optimum performance and maximum capacity for
DAT 160 tape drives. DAT 160 tape drives are also backwards compatible
with some earlier formats, see Table 6-1 on page 32.
Compatibility
For optimum performance and storage capacity, use tape cartridges that
match your drive's format, and normally use only one cartridge per day.
Ideally, use:
• DAT 160 cartridges with DAT 160 tape drives
31
#August 2009
• DAT 72 cartridges with DAT 72 tape drives
Although DDS tape drives are fully backward compatible, old tape formats
are more abrasive than later generations and using older tape formats can
reduce the life expectancy of the tape driv e.The compatibility between drive
models and cartridges is summarized in Table 6-1 on page 32. Shaded
boxes sho w the recommended media for each tape drive. Capacities assume
a compression ration of 2:1.
Table 6-1 Data cartridge compatibility
DAT 160DAT 72DDS-4DDS-3
DDS-1 &
2
read/write
160 GB*
read/writeread/write
not supported
not supported
DAT 160
not supported
72 GB*
read/writeread/write
not supported
DAT 72
* Capacity assumes 2:1 compression.
Write-protecting cartridges
If you want to protect the data on a cartridge from being altered or
overwritten, you can write-protect the cartridge.
Always remov e the cartridge from the tape drive before you change the write
protection.
• To write-protect a cartridge, slide the tab on the rear of the cartridge so
that the recognition hole is open.
• To write-enable a cartridge, slide the tab back so that the hole is closed.
Write-protection will not protect your cartridges against magnets (or bulk
erasers).
1018932DAT USB Tape Drives
32
Chapter 6–Use the correct media
1. tab closed, cartridge write-enabled
2. tab open, cartridge write-protected
Figure 6-1 Write protecting a cartridge
Cleaning cartridges
Table 6-2 Cleaning cartridge compatibility
Cleaning cartridge requiredTape drive model
You must use a DAT 160 cleaning cartridge
DAT 160 tape drives
You must use a standard DDS cleaning
cartridge
All other DAT tape drives
Do not use swabs or other means of cleaning the heads.The cleaning
cartridge uses a special tape to clean the tape heads. A cleaning cartridge
can only be used 50 times or as instructed on the cartridge packaging.
Always place a chec k mark in a box each time you use the cartridge to clean
the drive. Replace the cleaning cartridge when all the boxes are checked.
New cleaning cartridges are available from your manufacturer.
33
#August 2009
Cleaning cartridges
1. Insert a cleaning cartridge into the drive.The tape drive automatically
loads the cartridge and cleans the heads.
At the end of the cleaning cycle, the drive ejects the cartridge.The
cleaning cycle takes approximately 30-60 seconds.
If the cleaning cartridge is not ejected, it has probably expired. In this
case, press the Eject button, discard the cleaning cartridge and repeat
the operation with a new one.
2. Remove the cleaning cartridge from the drive.
The drive's TapeAlert feature will send a message to your backup
application when the tape heads need cleaning or a cleaning cartridge
has expired.
Handling cartridges
• Do not touch the tape media.
• Do not attempt to clean the tape path or tape guides inside the cartridge.
• Do not leave cartridges in excessively dry or humid conditions.
• Do not leave cartridges in direct sunlight or in places where magnetic
fields are present (for example, under telephones, next to monitors or
near transformers).
• Do not drop cartridges or handle them roughly.
• Do not stick more than one label onto the cartridge label area; extra labels
can cause the cartridges to jam in the drive. Stick labels onto the label
area only.
• See the insert included with the tape cartridge for storage conditions.
Getting the most out of cartridges and drives
• Use mostly the matching media type (DAT 160 media for DAT 160, DAT
72 media for DAT 72).
• Use media for the recommended number of times (DAT 160, DAT 72
=100 full backups). Overuse of the tape will cause it to degrade and
possibly shed tape debris in the drive.Too many new tapes can also
cause wear of the drive as they are rougher than used ones.
• Do not verify (DDS does read-after-write checking automatically).
• Do not overload the server during backups. Maximize the transfer rate
(run overnight with no other processes) and use incremental backups if
convenient.
• Do not overuse your tape drive—it is designed for approximately three
hours of tape pulling per day, not constant usage—and clean the drive
regularly. See “Cleaning cartridges” on page 33.
1018932DAT USB Tape Drives
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Chapter 6–Use the correct media
• If you want to bulk erase cartridges, this should be done in a controlled
environment.You need to make sure there are no other cartridges with
sensitive information on them anywhere near the bulk eraser when in
use. All data will be lost on cartridges that are bulk erased.
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#August 2009
Getting the most out of cartridges and drives
1018932DAT USB Tape Drives
36
Chapter 6–Use the correct media
Notes
7
Troubleshooting
In this chapter:
•“General Procedure” on page 37
•“Verifying USB installation for optimum performance” on page 38
•“Problems with cartridges” on page 40
General Procedure
If a problem occurs, the first step is to try to establish whether the problem
lies with the cartridge, the drive, the host computer and connections, or the
way the system is being operated.
Has the system just been installed?
There could be an installation problem:
1. Check through the information in the relevant installation chapter of this
guide.
2. Check the power connectors and SCSI cabling and USB cabling.
3. Are you connected to a USB 2.0 port? Are there any other devices
attached to the same USB hub/controller? See also
“USB Configuration Guide” on page 43.
4. Check the environmental conditions against the specified limits.
5. Are appropriate drivers and application software installed on the host?
Are you using new cartridges or a different brand of cartridge? Have
you been using the particular cartridge for a very long time?
The problem could lie with the cartridge:
1. Check through “Use the correct media” on page 31.
2. Check that you are using a DDS-labeled cartridge—not a DAT cartridge.
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#August 2009
3. Use the correct media type, for example:
• DAT 160 media with DAT 160 drives.
• DAT 72 media with DAT 72 drives.
Remember that although tape drives may be able to read earlier-f ormat
media, see Table 6-1 on page 32, the media itself is not
backward-compatible
• DAT 160 media can only be used with DAT 160 drives.
• DAT 72 media can be used with DAT 160 and DAT 72 drives.
4. Has the cartridge been write-protected, see
“Write-protecting cartridges” on page 32?
5. Clean the tape heads with the cleaning cartridge, see
“Cleaning cartridges” on page 33. Be sure to use the correct cleaning
cartridge.
• DAT 160 cleaning cartridges with DAT 160 tape drives.
• Standard DDS cleaning cartridges with DAT 72 tape drives
6. Try the operation again.
7. If the problem still occurs, try using a different cartridge.
8. If the problem is still there, the problem probably lies with the drive or
the host computer.
Has the drive been moved recently? Have any cables been
disconnected and reconnected? Has the environment
changed—unusually hot, cold, damp or dry? Has there been dust or
dirt near the drive. Have reasonable precautions against static been
taken?
The problem could lie with the drive:
1. Check the cables and connectors.
2. Clean the tape heads with the cleaning cartridge.
3. If the problem persists, check the environmental conditions against the
specified limits (please visit the support pages at http://
www.tandbergdata.com). Perhaps move the drive to a more suitable
site.
Has a new operating system been installed in the host computer? Has
new backup software been installed?
The problem could lie with the host or the software. Consult the computer's
operating manuals, the software manual, or seek help from a service
engineer.
Verifying USB installation for optimum performance
To confirm that a USB DAT drive is installed correctly:
• Check that a USB 2.0 port is being used
1018932DAT USB Tape Drives
38
Chapter 7–Troubleshooting
• Ensure that the tape drive is the only device on a USB hub
• Ensure that the Tandberg Data USB driver is being used
Check for USB 2.0 port (Windows)
It is important to ensure that you connect your drive to a USB 2.0 port.The
drive will work on a USB 1.1 port but performance will be severely degr aded.
To check the port on a Windows system:
1. Go to Device Manager and select Devices by connection from the
View menu.
2. Expand Universal Serial Bus controllers and locate the tape drive.
3. If a USB driver is listed as Enhanced, the port is USB 2.0.
Ensure that the tape drive is the only device on a USB hub (Windows)
On some computers multiple physical USB 2.0 ports will be connected to
the same master port, known as a “root hub”. Connecting multiple devices
to one root hub may degrade tape drive performance degradation.
USB Mass Storage devices like DAT tape drives have the lowest priority of
all device types on the USB bus , so devices such as webcams should ne ver
be connected to the same root hub.
To check the devices connected to a root hub:
1. Go to Device Manager and select Devices by connection from the
View menu.
2. Expand Universal Serial Bus controllers and locate the tape drive.
3. Trace the tree of devices back to the USB Root Hub and check that the
only device connected is the tape drive via the HP USB Mass Storage
Device.
Ensure that the hp_usbstor driver is being used (Windows)
The USB DAT drive will work with the Microsoft usbstor driver, however,
we strongly recommend that you use the Tandberg Data USB driver for
improved performance.
To check the driver being used:
1. Go to Device Manager and select Devices by connection from the
View menu.
2. Expand Universal Serial Bus controllers and locate the tape drive.
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#August 2009
Verifying USB installation for optimum performance
3. If the tape drive is connected to the HP USB Mass Storage Device, it
is configured correctly.
Check drivers (Linux)
Use the following procedure to check that both drivers are present:
1. usb_storage driver
• At the command prompt type:
lsmod | grep usb_storage
• The output of this command should contain a line similar to:
usb_storage 61193 0
• If this line is not present, type:
modprobe usb_storage
at the command line to load the usb-storage driver.
2. st tape driver
• At the command prompt type:
lsmod | grep st
• The output of this command should contain a line similar to:
st 35933 0
• If this line is not present, type:
modprobe st
at the command line to load the st driver.
Problems with cartridges
If you experience any problems using branded cartridges, check:
• The cartridge case is intact and that it contains no splits, cracks or
damage.
• The cartridge has been stored at the correct temperature and humidity.
This prevents condensation. See the insert included with the tape cartridge for storage conditions.
• The write-protect switch is fully operational. It should move from side to
side with a positive click.
• http://www
.tandbergdata.com for more detailed troubleshooting inf orma-
tion.
1018932DAT USB Tape Drives
40
Chapter 7–Troubleshooting
The cartridge is jammed
If the cartridge is jammed or the backup application is unable to eject it, you
can force eject the cartridge. Once the cartridge is successfully ejected, it
is good practice to upgrade the firmware. If the failure occurs regularly,
contact customer service via http://www
.tandbergdata.com.
1. Either press and hold the Eject button on the front of the tape drive for
at least 15 seconds. Or press the Eject button three times within 5
minutes.
2. Wait for the cartridge to be ejected.The drive waits until 35 seconds
have passed from the time of the first press, to give the normal eject
procedure a chance to proceed. After this period, it immediately releases
the tape and ejects the cartridge, regardless of what operation it was
performing. It is important that you allow sufficient time for the drive to
complete this process. If you interrupt it, you may damage the media
or the tape drive.The drive is then reset as though you had turned the
power off and then on again.
You may lose data if you force eject a cartridge.The tape may also
become unreadable because an EOD (End of Data) mark may not be
properly written.
3. If the cartridge is still jammed, the tape drive has failed. Contact
customer service.
The drive will not accept the cartridge (or ejects it immediately)
The cartridge may have been damaged, for example dropped, or the drive
may have a fault. If it is a cleaning cartridge, it has probably expired and
should be discarded immediately.
For data cartridges:
1. Check that the drive has power (the power cab le is properly connected
and the Tape LED is on).
2. Check that you are using the correct media for the tape drive, see
“Use the correct media” on page 31.
3. Make sure that you hav e loaded the cartridge with the correct orientation
(see “Loading and unloading cartridges” on page 28).
4. Check for damage to your media and discard it if it is damaged.
5. Use a new or known-good piece of media and see if it loads. If it does,
the original cartridge is faulty and should be discarded.
6. Check if another DAT drive of the same model will accept the cartridge.
If it does, the original drive may be faulty.
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#August 2009
Problems with cartridges
1018932DAT USB Tape Drives
42
Chapter 7–Troubleshooting
Notes
8
USB Configuration Guide
In this chapter:
•“USB in DAT devices” on page 43
•“USB terminology” on page 43
•“Setting up a USB network” on page 44
•“USB cables” on page 45
USB in DAT devices
The DAT tape drive is a USB 2.0 logo certified device. It supports the
high-speed USB transfer rate with a theoretical maximum transfer of over
50 MB/s. (The actual bac kup rate will be less .This is defined by the transfer
rate of the tape drive and the compressibility of the data.)
To benefit from the high-speed performance of the USB 2.0 interface, the
USB DAT tape drive should be connected to its host system via a USB 2.0
port. Any USB hubs between the tape drive and the system port should also
be USB 2.0 compliant.
T o maximiz e tape drive performance, minimize the use of other USB de vices
when using the USB tape drive.
USB terminology
The Universal Serial Bus, USB, is a communication interface where an
intelligent host controls all the network activity. A command from the host
to a particular device is broadcast to all devices on the network. A device
waits for a command addressed to itself and then responds as requested.
The host determines how much of the overall USB network bandwidth a
given device can use at any time. Any given USB network has only one
host.
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#August 2009
Hubs act as command repeaters and multipliers.This allows many devices
to be supported by one host. A host command can arrive at the upstream
port of the hub and be transmitted via the downstream ports to many other
device and hubs. (Likewise, device commands arriving at a downstream
port are also repeated upstream.) There is a special hub called a root hub.
The root hub's upstream port is connected directly to the host. All USB
systems have a root hub.This is why a system typically has more than one
USB port. All the USB ports on the system are connected to the host system
via the root hub.
USB devices are not treated equally by the host.
• Periodic devices, which consist of interrupt and isochronous devices,
are given a higher priority than bulk transfer devices.
• Interrupt devices, such as keyboards and mice, typically send brief but
important input information to the system.
• Isochronous devices, such as web cameras, typically require timely
transmission of data, such as a video stream.
• Bulk transfer, such as printers and CD-ROM, must receive or transmit
100% accurate data. But how fast or often the data is transmitted is not
as important as the accuracy of the data.
The host will give network bandwidth priority to periodic devices and will
share any remaining bandwidth equally among any active bulk transfer
devices.
USB supports many types of devices and three data transfer rates, low
speed, full speed, and high speed. (A keyboard does not need to transfer
data to the system at the same speed as a cable modem.)
The transfer speed capabilities of a de vice are often referred to by the USB
specification revision in which the transfer rate was defined.Therefore a
USB 2.0 Hub will support high, full and low speed, but a USB 1.1 hub will
only support full and low speed.
The USB specification was developed and is maintained by the USB
organization.The USB organization also conducts a certification program.
The USB organization will issue the USB logo to a device, which has passed
a series of tests that verify the device has correctly implemented the USB
interface, as defined b y the USB specification.There are many types of USB
logos depending on which features of the USB specification a device
supports. A USB 2.0 logo-ed device correctly supports high, full, and low
speed data transfer.
Setting up a USB network
USB is very user friendly.The interface automatically assigns addresses to
devices; you simply need to connect a USB de vice to a USB port on a system
using a USB cable. If you ha ve man y USB devices or need to place a de vice
away from your system, you may place up to a maximum of five USB hubs
between the device and host system and connect them with additional
cables.
1018932DAT USB Tape Drives
44
Chapter 8–USB Configuration Guide
If you are using a high-speed (USB 2.0) device, make sure that the USB
host at the system and all the hubs between the device and host support
high-speed (USB 2.0) transfer.
When using a bulk transfer device, such as a tape drive, do not use other
USB devices that will place restrictions on the USB bandwidth available to
the bulk transfer device.
If sever al USB device requiring large amounts of the USB network bandwidth
are to operate simultaneously, an additional host must be added to the
system. Each de vice must then be placed into the separate networks starting
at the different hosts. An additional host is typically a new USB HBA, which
plugs into the host system's PCI slot, creating a new USB host that resides
on the network.
Note:
If sever al USB adapters are placed into a system, demands on the bandwidth
of the system bus will constrain the USB devices' performance.
Always use USB logo-ed components in y our USB network.This is the best
and easiest method to ensure reliable operation.
USB cables
USB cables are av ailable in a v ariety of lengths.The maximum cable length
is 5 meters. If you need to place a USB device further than 5 meters from
the system, you must use a hub.
Do not use USB cable extenders or couples.These are not recognized or
approved by the USB organization.The USB specification does not allow
their use and they are likely to reduce the reliability of the USB network or
cause it not to work completely.
Internal and external USB devices use the same USB cables.
45
#August 2009
USB cables
1018932DAT USB Tape Drives
46
Chapter 8–USB Configuration Guide
Notes
Index
A
audience, VII
B
backup software
supported, 12
buttons
Unload, 29
C
cartridge life, 34
cartridges
See
best use of, 34
cleaning, 33
compatibility, 31
handling, 34
inserting, 28
jammed, 41
loading, 28
not accepted, 41
power off, 29
problems, 37
removing, 29
unloading, 29
write protecting, 32
cleaning cartridges, 33
compatibility
backup software, 12
conventions
document, VII
text symbols, VIII
D
DAT 160 cartridges, 31
DAT tape drive
front view, 9, 24
LEDs, 25
loading, 28
models supported, 9
powering off, 29
unloading, 29
document
conventions, VII
drive
operating, 24
drivers
installing, 12
unix, 12
windows, 11
E
eject button, 29
F
firmware, upgrading
drives, 29
front panel
drives, 24
front view, 9, 24
H
handling cartridges, 34
help
obtaining, VII
I
inserting cartridges, 28
installation, 37
problems, 37
troubleshooting, 37
verifying, 21
installing
drivers, 12
internal drive, 13
installing internal
attach mounting hardware, 14
prepare mounting bay, 14
secure drive, 17
J
jammed cartridge, 41
47
#August 2009
L
LEDs, 25
at power on, 21
loading
cartridges, 28
loading cartridges, 28
M
media
See cartridges
models supported, 9
mounting requirements, 13
O
online, 28
operating systems supported, 10
operation
drives, 24
troubleshooting, 38
P
power off, 29
power on button, 24
product specification
See
S
software
troubleshooting, 38
supported operating systems, 10
symbols in text, VIII
T
technical support, VII
text symbols, VIII
troubleshooting
cartridge ejected, 41
cartridges, 37
general, 38
general procedure, 37
installation, 37
jammed cartridge, 41
LEDs, 25
software, 38
U
unix
drivers, 12
Unload button, 29
unloading cartridges, 28, 29
upgrading firmware
drives, 29
V
verify installation, 21
W
write protect, 32
1018932DAT USB Tape Drives
48
Index
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