This document contains information that is protected by copyright. All rights are
reserved. No part of this docume nt ma y be p hotoc opied, r eproduced , or transl ated to
another language without the prior written consent of Hewlett-Packard Company.
The information contained in this document is subject to change without notice.
Hewlett-Packard makes no warranty of any kind with regard to this printed material,
including, but not limited to, the implied warranties of merchantability and fitness
for a particular purpose. Hewlett-Packard shall not be liable for errors contained
herein or for incidental or consequential damages in connection with the furnishing,
performance, or use of this material.
New editions of this manual incorporate all material updated since the previous
edition. The manual printing date and part number indicate the current edition. The
printing date changes when a new edition is printed. (Minor corrections and updates
incorporated at reprint do not change thi s date .)
Part number C1160-90015Edition 1February 1998
ii
Typographical Conventions
The following typographical conventions are used in this manual:
Emphasis: Denotes important information.
Keycap: Keys on the libr ary.
Computer Output: Information displayed in the display window an d screen
menu items that you can select.
WARNINGWarnings call attention to a procedure or practice that could result in personal
injury if not correctly performed. Do not proceed until you fully understand an
meet the required conditions.
CAUTIONCautions call attention to an operating procedure or practice that could damage the
product if not correctly performed. Do not proceed until understanding and meeting
these required conditions.
NOTENotes provide information that can be helpful in u nderstanding the operation of the
product.
iii
In This Manual
This user’s guide includes:
Chapter 1 set-up information for the HP SureStore Optical 80ex optical
jukebox
Chapter 2 information about choosing and using optical disks
Chapter 3 features description, operating instruct ions, and troubl eshooting
information
Appendix A supplies and customer support
Appendix B operating this jukebox on a SCSI bus
Appendix C safety and regulatory information
Glossary of Terms
Index
This chapter gives information on the following topics:
•what you need to set up the jukebox
choosing a proper environment for the jukebox
•
•identifying features on the jukebox side panels
•connecting the jukebox to your computer
•connecting power
•moving and s hipping the jukebox
What you need to set up the jukebox:
•power cord (included)
•single-ended and differential SCSI terminators (included)
•SCSI cable with either a 50-pin high-density or a 68-pin high-density connector
depending on whether you choose the single-ended or differential interface
•single-ended or differential SCSI host adapter with at least one available add ress
•application software that suppor ts this type of jukebox
•
this guide (included)
Choosing a Location
Before setting up your jukebox, choose the proper environ ment based on the
following recommendations:
•temperature range between 65-75º F (18-24º C).
•away from sources of particulate contamination such as printers, scanners,
frequently-used doors and walkways, supplies that collect dust, and smoke-filled
rooms.
•enough room to comfortably insert disks in the mailslot, 2-3 inches on all other
sides to allow air circulation (see Figure 1-1).
•availability of AC power with voltage ranges of 100-127 V or 200-240 V
(nominal).
1-2Chapter 1
Setting Up the Jukebox
System Components Needed for Operation of This Jukebox
System Components Needed for Operation of
This Jukebox
This jukebox requires application software to operate it as a single storage device
composed of multiple SCSI devices. Consult with your sales representative to chose
the application software you need.
Standard Configuration
The following list shows the hierarchy of the system components needed to operate
this jukebox in a standard configuration.
•
Host computer CPU
•Operating system
•Optical jukebox application software
Chapter 1: Setting
up the Disk Drive
Setting up the
Jukebox
•Jukebox SCSI drivers (may be included in optical
jukebox application software above)
•Jukebox
High-Availability Configuration
The following list shows the hierarchy of the system components needed to operate
this jukebox in a high-availability configuration. Consult with your high-availability
vendor for installation and configuration.
•
Host computer CPUs (two host computers)
•Operating systems (on two host computers)
•High-availability application software (links both host computers)
•Optical jukebox application software (on both host computers)
•Jukebox SCSI drivers (may be included in optical
jukebox application software above)
•Jukebox
Chapter 11-3
Setting Up the Jukebox
Identifying Controls and Features
Identifying Controls and Features
Figure 1-1Right Side
1-4Chapter 1
Setting Up the Jukebox
Identifying Controls and Features
The numbers below correspond to the numbers in Figure 1-1 on the previous page:
1Control panelUsed to manually control and monitor operation of
the jukebox. A full description of the controls and
indicators on the control panel are in Chapter 3.
2MailslotUsed to load and eject optical disks.
3Power switchUsed to power the jukebox on and off.
Chapter 1: Setting
up the Disk Drive
Setting up the
Jukebox
4Right service
access panel
A service panel that should be removed only by your
service representative.
Chapter 11-5
Setting Up the Jukebox
Identifying Controls and Features
Figure 1-2Left Side
1-6Chapter 1
Setting Up the Jukebox
Identifying Controls and Features
Chapter 1: Setting
up the Disk Drive
Setting up the
Jukebox
5Active bus
indicator
6SCSI interface
selection switch
7 SCSI portsUsed for attaching the SC SI cab l e from the jukebox to
8Power
receptacle
9Left access
panel
Lit when the SCSI bus is active. There is an indicator
for the single-ended interface and an indicator for the
differential interface
Used to select either the single-ended or differential
SCSI interface.
the host computer. Select either the single-ended or the
differential pair of connectors (see item 5 in this list).
Both ports of a selected interface must be used. One
port must have a SCSI cable connected, and the other
must have either a SCSI terminator connected to it, or
it can be used to daisy-chain to another SCSI device.
Connection for the power cord.
Covers the interface assembly (see components 5, 6, 7,
and 8 above). This panel is removed by pushing up on
the panel (from the bottom) and then pulling the panel
out and away.
Chapter 11-7
Setting Up the Jukebox
Connecting the SCSI Cables to the Jukebox
Connecting the SCSI Cables to the Jukebox
The following is general cabling information.
Interface types availableSingle-ended or differential SCSI, selected by
the interface selection switch on the top of the
interface module (see “6” on Figure 1-2).
Number of hosts This jukebox may be used in high availability
environments. High availability environments
can be complex and are not described in this
guide. Consult with your high-availability
vendor for installatio n and configuration.
The maximum cable length you have available for con nection to your h ost computer
system or other devices depends on which interface type you select. The following
table lists the maximum SCSI bus len gths available to you.
Table 1-1Maximum SCSI External Cable Lengths (Assuming no devices internal to t he
host computer)
Interface Type
Single-Ended SCSI
(50-pin high-density connector)
Differential SCSI
(68-pin high-density connector)
NOTEHewlett-Packard recommends that you use SCSI cables with thumbscrew
connectors. Clip type cables may be used if you first remove the mounted
thumbscrew studs with a flat blade screwdriver. If the thumbscrew studs are not
removed, interference between the cable and the studs may result.
1-8Chapter 1
Maximum External Cable
Length
3 meters (9.8 feet)
25 meters (82.0 feet)
Setting Up the Jukebox
Choosing Your Cabling Configurations
Choosing Your Cabling Configurations
Pick the configuration that applies to your plans below. You will be shown the page
for the proper procedures.
One Host Computer (standard configuration)Refer
to Page
Chapter 1: Setting
up the Disk Drive
Setting up the
Jukebox
Will the jukebox be the only
device on the bus?
Will other devices be on the same
SCSI bus with the jukebox? (not recommended)
1-10
1-12
Two host computers (high-availability configuration):
Consult with your high-availability vendor—
Chapter 11-9
Setting Up the Jukebox
Connecting the Jukebox as the Only Peripheral
Connecting the Jukebox as the Only Peripheral
NOTEThis following configuration is the recomm e nded configuration for this jukebox.
Figure 1-3Connecting the Jukebox as the Only Peripheral
Refer to Figure 1-1 and 1-2 for the locations of the following switches and
connectors.
1. Ensure the power to the host computer is turned off.
2. Remove the left side access panel (side opposite the mailslot side) by lifting up
on the bottom of the panel and then pullin g it away.
3. Select either the single-ended or differential SCSI interface using the SCSI
interface selection switch on the top of the interface assembly (under the left
access cover (see “6” on Figure 1-2).
1-10Chapter 1
Setting Up the Jukebox
Connecting the Jukebox as the Only Peripheral
4. Connect a cable between the host computer and one of the jukebox SCSI
connectors of your selected interface type.
You may connect the SCSI cable to either port of the jukebox.
NOTEPlug a terminator into the unused port of the interface type you are using. Also, put a
terminator on one of the port connectors of the other interface type.
The single-ended terminator has 50 pins, the differential terminator has 68 pins.
NOTEGo to “Connecting Power” and then to “Write Verify” to finish installation.
Chapter 1: Setting
up the Disk Drive
Setting up the
Jukebox
Chapter 11-11
Setting Up the Jukebox
Connecting the Jukebox with Other SCSI Devices
Connecting the Jukebox with Other SCSI
Devices
NOTEOperating this jukebox with other peripherals on the same bus is supported, but not
recommended.
In most circumstances, the recommended configuration for this jukebox is as the
only device on a SCSI bus. However, your use of t he jukebox may be such t hat other
devices could be connected to the bus without a loss of performance.
It is possible to connect this jukebox on a bus with additional devices in different
ways (depending on your model):
• a 2- or 4-drive jukebox using basic SCSI addressing or
•a 2- or 4-drive jukebox using logical unit numbering (LUN) addressing
Some issues that must be considered when connecting other devices on a bus with
this jukebox, include the following:
•How will the jukebox be used: archiving, backup, near-line storage? What
performance must be maintained?
•How will the other device under consideration be used? How much demand will
it place on the bus?
•Will you be have to mix “wide” and “narrow” devices on the bus?
•
Are there devices on the internal part of the SCSI bus?
•Will you be using a single-endedinterface or a differential interface?
NOTEAppendix B provides a brief overview of SCSI and the issues you must consider
when placing other devices on the same bus with this jukebox. More extensive
information and frequently asked questions are at the web site at
www.hp.com/isgsupport/optical/index.html
1-12Chapter 1
Connecting Power
1. Ensure the power switch on the jukebox is OFF (see Figure 1-1).)
NOTEUse the power cord shipped with the jukebox.
2. Plug the socket end of the power cord into the power port on the bottom of the
interface enclosure (see “8” on Figure 1-2).
Setting Up the Jukebox
Connecting Power
Chapter 1: Setting
up the Disk Drive
Setting up the
Jukebox
3. Plug the other end of the power cord into a power ou tlet.
(After the jukebox is moved to its operating location) Lower the leveler feet and
4.
tighten the 1/2-inch nut on each foot.
5. Turn the power on.
TESTING
completes (approximately 1.5 minutes),
NOTEIf
NOTEGo to “Configuring Write Verify” on the next pag e to complete the installation.
DEVICE FAILED
troubleshooting procedures.
NOT READY
and
alternately display. Once the poweron test
READY
displays.
displays. See “Troubleshooting” in Chapter 3 for
Chapter 11-13
Setting Up the Jukebox
Configuring Write Verify
Configuring Write Verify
The write verify configuration ensures that data is written reliably to an optical disk.
The jukebox ships with write verify enabled. Many software applications also
default to this method of writing.
Writing data on a magneto-optical disk requires two passes. The first pass
erases the data in the sector to which data will be written. The second pass
writes new data to that sector.
When write verify is configured to ON, an additional pass is made over the sector.
This third pass verifies that all data is written correctl y to the sector. To add to the
reliability of your data, Hewlett-Packard recommends that you maintain the default
ON setting for write verify. Note that when write verify is ON, write operations take
more time.
If you choose to change t he write verify con figu ration to OFF, refer to “C onfig uring
Operating Configurations” in Chapter 3.
NOTEThis is the last step in the installation process. Go to Chapter 3, “Op erating the
Jukebox.”
1-14Chapter 1
Setting Up the Jukebox
Moving or Shipping the Jukebox
Moving or Shipping the Jukebox
If you want to move the jukebox a short distance, such as to another office or to
another floor in your building, see “Moving the Jukebox a Short Distance.” If you
want to ship the jukebox to another location, see “Shipping the Jukebox.”
Moving the Jukebox a Short Distance
1. If you will be removing the disks from the jukebox, follow your jukebox
application software in st ru ctions for unmounting, ej ect ing , and la b el ing disks to
ensure that the jukebox can be brought online again easily.
Ensure that there are no disks in the drives.
CAUTIONFailure to eject a disk fro m the opti cal drive prior to m oving the jukebox could resul t
in damage to the optical drive mechanism.
If you will be manually ejecting disks, refer to “Ejecting an Optical D isk fro m
the Jukebox” in Chapter 3.
Chapter 1: Setting
up the Disk Drive
Setting up the
Jukebox
CAUTIONTurning off the jukebox in the next step could cause data loss if not done correctly.
Do not turn off power to the jukebox until you are sure the SCSI bus is inactive.
Removing power from a SCSI device when the bus is active can result in data loss
and/or indeterminate bus states. Check your host system manuals for information
about checking the SCSI bus status. I f your computer is co nnected to a LAN, be sure
to check with your system administrator before turning off power to the jukebox
2. Switch jukebox power OFF (see “3” on Figure 1-1).
3. Lift off the left side panel and remove the power cord and the SCSI cable
connections.
4. Loosen the 1/2-inch nut securing each of the four leveler feet and screw the feet
up to raise them away from the floor.
5. Carefully move the jukebox to its new destination.
6. Set up the jukebox at its new location. Refer to the cabling an d addressing
information in the beginning of this chapter if necessary.
7. Lower the leveler feet and tighten the 1/2-inch nut on each foot.
8. Bring the jukebox online according to your system’s requirements.
Chapter 11-15
Setting Up the Jukebox
Moving or Shipping the Jukebox
Shipping the Jukebox
1. Follow your jukebox application software instructions for unmounting and
ejecting disks.
Ensure that there are no disks in the drives.
CAUTIONFailure to eject a disk from t he optical drive pri or to m oving the jukebox coul d result
in damage to the optical drive mechanism.
Failure to remove all disks from the storage slots in the jukebox could result in
damage to the jukebox.
If you will be manually ejecting disks, refer to “Ejecting an Optical Disk fro m
the Jukebox” in Chapter 3.
2. Follow your jukebox application’s instructions for labeling the disks according
to what you will be doing with the disks (example: archiving, moving them to
another jukebox, etc.)
CAUTIONTurning off the jukebox in the next step could cause data loss if not done correctly.
Do not turn off power to the jukebox until you are sure the SCSI bus is inactive.
Removing power from a SCSI device when the bus is active can result in data loss
and/or indeterminate bus states. Check your host system manuals for information
about checking the SCSI bus status. I f your computer is connected to a LAN, be sure
to check with your system administrator before turning off power to the jukebox.
3. Switch jukebox power OFF (see “3” on Figure 1-1).
4. Lift off the left side panel and remove the power cord and the SCSI cable
connections.
5. Loosen the 1/2-inch nut securing the leveler feet and screw the feet up to raise
them away from the floor.
6. Repackage the jukebox in the same way it was received.
NOTEYour service representative can provide assistance or advise you on how to best
repackage and ship your jukebox.
1-16Chapter 1
Optical Disks
Using
2Using Optical Disks
Using Optica l Disks
Overview of This Chapter
Overview of This Chapter
Using Optical Disks
The optical disks that you use with your jukebox are an integral part of the storage
process. This chapter provides information on the follo wing topics:
choosing an optical disk type
•
•labeling optical disks
•write-protecting optical disks
•caring for optical disks
NOTEThe optical cartridges used in this jukebox are a critical part of reliable data storage.
Optical cartridges consist of an opto-magnetic medium and mechanical components.
Consistent quality of opto-magnetic media ensu res correct “writes” and “reads.”
The quality and fit of the mechanical components of the cartridge affect accurate,
smooth handling of the cartridge by jukebox robotics. A failure of the mechanical
components of a cartridge could damage the mechanism of an optical drive.
CAUTIONUse only HP-qualified media cartridges in this jukebox. Use of n on- HP-qualified
optical cartridges could damage an optical drive and void the warranty of that drive.
NOTEA list of Hewlett-Packard optical media cartridges is in Table A-1 of Appendix A.
If you are not using HP media, please refer to the list of HP-qualified manufacturers
on the website:
www.hp.com/isgsupport/optical/index.html
2-2Chapter 2
Using Optical Disks
Choosing an Optical Disk Type
Choosing an Optical Disk Type
Two disk types are avai la ble fo r us e i n t he ju kebox: rewritable disk s an d wri t e-o nce
disks.
To choose which type of disks to use, consider these points:
•Rewritable optical disks--data can be repeatedly written and erased.
•Write-Once optical disks--data can be written only once, and the data cannot be
altered or erased. If you have a need for data security an d audit tr ails, write-once
disks may be a good disk choice.
•Both rewritable and write-once disks come in three sector sizes: 2,048
bytes/sector, 1,024 bytes/sector, and 512 bytes/sector. The sector size you
choose depends upon what type of operating system you have in your host
computer and which software package you use to manage files stored on the
jukebox.
NOTEDo not use write-once disks in a computer system that does not support write-once
disks. Check that your jukebox application software supports write-once disks.
Optical Disks
Using
Chapter 22-3
Using Optica l Disks
Labeling an Optical Disk Cartridge
Labeling an Optical Disk Cartridge
Make it a practice to label your optical disk cartridges. You are provided adhesive
labels with each disk for this purpose. Here are some suggestions for labeling:
NOTEYour jukebox application software may label your optical disk slot locations
differently. Use your application to check disk lo cations prior to labeling the disks.
•storage slot location (1, 2, 3, ... )
•date of format or initialization
•disk owner (group, department, etc.)
•storage purpose (backup, old version of operating system, etc.)
HP recommends using end labels as shown in Figure 2-1. End labels reduce the
chance of label material interfering with the cartridge shutter and causing a drive to
jam.
CAUTIONLabels used in the vicinity of the shutter may cause the drive to jam if the label is
installed incorrectly or if portions of the label lift off because of wear. If a drive
jams because the label interferes with the shutter, a service call may be necessary.
Figure 2-1Recommended Placement of Cartridge Labels
2-4Chapter 2
Using Optical Disks
Write-Protecting an Optical Disk
Write-Protecting an Optical Disk
Each side of an optical disk can be write-protected by sliding the write-protect
button in the direction of the arrow on the cartridge (see Figure 2-2).
With rewritable optical disks, write-protecting the disk prevents overwriting
existing files and prevents any additional file being written to the disk.
With write-once optical disks, existing files cannot be altered or erased regardless of
whether or not the write-protect button has been set. However, setting the button to
write-protect prevents writing additional files to the disk.
Figure 2-2Write-Protect Button Location
Optical Disks
Using
Chapter 22-5
Using Optica l Disks
Caring for Optical Disks
Caring for Optical Disks
Follow these guidelines to ensure that your optical disks remain in good condition:
•Do not expose disks to extreme magnetic fields.
•Do not expose disks to dust particles.
•Do not expose disks to extreme temperatures or extreme humidity.
•Do not drop the disks.
•Do not open a disk's metal shutter and touch the disk surface.
•Do not take disks apart.
•Do not insert disks with loosely-attached labels into the jukebox.
•Remove old disk labels before applying new ones especially if you choose to
place labels on the sides of the cartridge (near the shutter) rather than on the en d
of the cartridge.
•Store disks in a clean, safe place when they are not in use.
Cleaning Disks
Normally, an optical disk does not require cleaning when used in a computer room
or clean office environment. If you are in an extremely dusty environment and are
experiencing difficulties reading and/or writing to a particular disk you may want to
clean the disk to see if this corrects the problem.
CAUTIONBe very careful when cleaning an optical disk. Abrasive particles dragged acro ss the
disk surface can damage the disk and prevent recovery of some or all of the data on
the disk.
Clean a disk only with a disk cleaning kit. Follow the disk cleaning kit instructions
exactly.
The order numbers for manual and automated disk cleaning kits are in Table A-1,
Appendix A.
2-6Chapter 2
3Operating the Jukebox
Operating the
Jukebox
Operating the Jukebox
Overview of This Chapter
Overview of This Chapter
This chapter gives information on the following topics:
•operating the control panel
•using the selection buttons
•interpreting messages which appear in the display window
•loading optical disks into the jukebox
•ejecting optical disks from the jukebox
•entering the administration menu pa ssword
•changing the administration menu password
•setting SCSI IDs or logical unit numbers (LUNs)
•setting configurations
•retrieving performance information
•running tests (for service use)
•using online repair (for service use only)
•troubleshooting
3-2Chapter 3
Operating the Jukebox
Operating the Control Panel
Operating the Control Panel
The control panel enables manual control of all jukeb ox operations using four
buttons and an LED display.
The SCSI IDs of the jukebox and its optical drives can be set and changed, disks
may be loaded and ejected, configurations can be monitored and changed,
performance information can be viewed, internal tests can be run, and the jukebox
can be secured from unauthorized use.
The figure and text on the next two pages show the user controls, mailslot and
power switch. The rest of the chapter describes all manual procedures available to
the operator.
Operating the
Jukebox
Chapter 33-3
Operating the Jukebox
Operating the Control Panel
Figure 3-1The Jukebox Control Panel
3-4Chapter 3
Operating the Jukebox
Operating the Control Panel
The numbers below refer to the numbers in Figure 3-1 on the previous page.
1Swivel featureThe control panel assembly may be rotated to face the
display (#3 below) toward the front or right side of the
jukebox. The front has the vertical window, the right
side has the mailslot.
2Activity lightLit differently to indicate the following:
• Steady Green - power is on
• Flashing Green - an optical drive is being accessed
• Amber - a fault occurred
Operating the
Jukebox
316-character
Displays information about the current operation.
display
4Selection
buttons
Pressed to perform the following operations:
CANCEL cancels the current operation or choice
PREV scrolls the display choice backward by one
NEXT scrolls the display choice forward by one
ENTER selects the displayed choice
5Power switchUsed to power the jukebox on and off.
6MailslotUsed to load and eject optical disks
NOTEFigure 3-2 shows the jukebox menus available using the control panel selection
buttons.
Chapter 33-5
Operating the Jukebox
Operating the Control Panel
Figure 3-2Jukebox Display Menu Tree
3-6Chapter 3
Operating the Jukebox
Using Selection Buttons
Using Selection Buttons
Use the CANCEL, PREV, NEXT, and ENTER buttons to select tasks you want the
jukebox to perform. When you push these buttons, the message in the display
window changes. See the next section for a list of messages.
Each time you push the
NEXT or PREV button, a task choice appears. (If you see an
“*” as part of the message, it indicates there is a menu beneath that choice, which
you can access by pressing the
NEXT or PREV key. Holding the NEXT or PREV or button down scrolls the display
ENTER key. To display additional choices, press the
faster.)
NOTEYou can get back to READY at any time by pressin g CANCEL. (You may have to
press CANCEL more than once in some cases.)
Operating the
Jukebox
Chapter 33-7
Operating the Jukebox
Understanding Display Window Messages
Understanding Display Window Messages
The display window shows the op erati on s you may select. Instructions f or se lect in g
or changing choices follows the explanation of the messages.
Top Level Menus
READY The jukebox is ready for operation.
ADMIN * Select to access second-level choices. You must enter a security
code to access these choices.
NOTEA * indicates that there are multiple selections available for that choice currently
displayed. When a choice is flashing, press
display othe r choices.
Second Level Menus
You must enter a security code before accessing these functions. See “Entering the
Administration Menu Password” later in this chapter. A default password of 000 000 000 is set at the factory. You may want to change this default code to a
private code to prevent unauthorized access to the jukebox. See “Changing the
Administration Menu Password” in this chapter.
ENTER to select it or PREV or NEXT to
TEST * Select to run internal tests (normally, these are run by service).
INFO * Select to retrieve performance information stored in the
jukebox logs.
CONFIG * Select to customize the way the jukebox functions.
SCSI IDs * Select to view and/or change the SCSI IDs and logical unit
numbers (LUNs).
ONLINE
REPAIR * Select to view and change drive settings for onlin e drive
replacement (used by service only)
NOTEAn “*” indicates there are multiple selections available for the displayed choice.
When a menu selection is flashing, press
PREV or NEXT to display other choices that available in that part of the menu.
3-8Chapter 3
ENTER to choose that selection, or press
Operating the Jukebox
Understanding Display Window Messages
In Figure 3-2, you can display the selections listed in boxes below the shaded
choices by pressing
NEXT to scroll through the list. To perform the displayed op eration, press ENTER.
ENTER when one of the shaded choices displays. Press PREV or
Operating the
Jukebox
Chapter 33-9
Operating the Jukebox
Loading a Disk into the Jukebox
Loading a Disk into the Jukebox
NOTELabel all disks before loading them into the jukebox. (See “Labeling an Optical Disk
Cartridge” in Chapter 2 for instructions.)
Some software packages require that you load and eject disks by using instructions
in the software. If you use a software package to manage files in the jukeb ox, ch eck
the software documentation before proceeding with these steps.
Start withREADY or LOADin the display.
Figure 3-3Loading a Disk
1. Insert a disk into the mailslot with Side A of the disk facing up. The shutter end
of the disk goes in the mailslot first.
When the disk is inserted, it is automatically pulled into the mailslot. An
incorrectly inserted disk is rejected, CART IN WRONG displays briefly, and
then LOAD SLOT # displays. (“#” is flashing and is the number of the first
available storage slot in the jukebox.)
2. If you want to select the storage slot number that shows in the display, press
LOAD or ENTER. If you want to choose a different storage slot, press NEXT or
PREV until the desired slot number displays, and then press ENTER.
3-10Chapter 3
Operating the Jukebox
Loading a Disk into the Jukebox
3. LOADING displays as the jukebox moves the disk to the slot. After the disk is
loaded into the selected storage slot, the display returns to LOAD *. You may
now load additional disks by inserting the disks into the mailslot and repeating
step 3 until you are finished loading disks.
4. Press
CANCEL to return to the READY state.
Operating the
Jukebox
Chapter 33-11
Operating the Jukebox
Ejecting a Disk From the Jukebox
Ejecting a Disk From the Jukebox
NOTESome software packages require that you load and eject disks by following the
instructions in the software. If you use a software package to manage files in the
jukebox, check the software documentation before proceeding with these steps.
Start withREADYin the display.
1. Press
NEXT until EJECT * displays and then press ENTER.
2. EJECT SLOT # displays. (“#” is flashing and the number of the first storage
slot in the jukebox that contains an optical disk.)
3. If you want to select the storage slot number that shows in the display, press
EJECT or ENTER. If you want to choose a different storage slot, press NEXT or
PREV until the desired s lot nu mber di sp l ays and t hen pres s ENTER. (See the note
on the following page.)
EJECTING displays as the jukebox moves the disk to the mailslot. When the
disk is in the mailslot, the display returns to EJECT SLOT #.
4. Remove the disk from the mailslot.
You may now eject additional disks by pressing
ENTER and then following steps
2 through 4 until you are finished ejecting disks. When the last disk is ejected,
EMPTY displays briefly before returning to EJECT *.
5. Press
CANCEL to return to the READY state.
3-12Chapter 3
Operating the Jukebox
Entering the Administration Menu Password
Entering the Administration Menu Password
READY>ADMIN *>PSWD 000 000 000
A numeric password is required to access menu choices beneath the ADMIN *
menu of the jukebox (see Figure 3-2). A three-part password, 000-000-000, was set
at the factory. Consider changing this default password to your own password so
that only authorized persons can access the choices under the ADMIN * menu.
NOTEDon’t forget your password. If you forget it, only your service representative can
reset the security code to the factory setting which enables you to set a new
password.
Follow these steps to enter the password. If you want to change the password, go to
the next section, “Changing the Administration Menu Password.”
Start withREADYin the display.
1. Press
2. Press
NEXT until ADMIN * displays.
ENTER. PSWD 000 000 000 displays and the first set of three zeros
flashes.
NOTEIf the default password, 000 000 000, is still in effect, accept this password by
pressing
ENTER three times (once for each set of three zeros). TEST * displays
which indicates you are in the menu tree below ADMIN *.
If you have set your own password into the jukebox, continue with Steps 3 to 5
below.
3. Press
4. Press
5. Press
NEXT or PREV until the first number of your password displays. Press
ENTER. The middle set of three zeros flashes.
NEXT or PREV until the second number of your password displays. Press
ENTER. The third set of three zeros flashes.
NEXT or PREV until the third number of your password displays. Press
ENTER. TEST * displays.
Operating the
Jukebox
To access menu choices under the ADMIN * menu press
desired choice displays, and then press
ENTER.
NEXT or PREV or until the
Chapter 33-13
Operating the Jukebox
Changing the Administration Menu Password
Changing the Administration Menu Password
READY>ADMIN *>PSWD 000 000 000>CONFIG *
1. Follow the steps on the previous p a ge to enter your password (or the default,
factory-se t password 000 000 000).
2. TEST * displays. Press
3. Press
NEXT or PREV or until NEW PASSWORD displays and then press ENTER.
NEXT until CONFIG * displays, and then press ENTER.
4. NEW 000 000 000 displays and the first set of three zeros flashes. Press
NEXT or PREV until the new number you wish to assign to the first part of the
password displays and then press
5. Press
NEXT or PREV until the new number you wish to assign to the second part
of the password displays and then press
ENTER. The second set of three zeros flashes.
ENTER. The third set of three zeros
flashes.
6. Press
7. PASSWORD CHANGED displays. Press
NEXT or PREV until the new number you wish to assign to the third part of
the password displays and then press
ENTER.
CANCEL three times to return to READY
CAUTIONTurning off the jukebox in the next step could cause data loss if not done correctly.
Do not turn off power to the jukebox until you are sure the SCSI bus is inactive.
Removing power from a SCSI device when the bus is active can result in data loss
and/or indeterminate bus states. Check your host system manuals for information
about checking the SCSI bus status. I f your computer is connected to a LAN, be sure
to check with your system administrator before turning off power to the jukebox.
8. Turn the jukebox OFF, then ON to save the password to the jukebox flash ROM.
3-14Chapter 3
Operating the Jukebox
Setting the SCSI IDs
Setting the SCSI IDs
NOTEIf you are unfamiliar with basic SCSI addressing or LUN addressing, refer to
Appendix B. A web site is also available for more extensive information at:
www.hp.com/isgsupport/optical/index.html
First, determine if you are using basic SCSI addressing or logical unit numbering
(LUN). Setting the LUN mode is explained below.
Next, either view the current SCSI IDs or proceed directly to setting IDs. The next
two procedures are “Viewing the Current SCSI IDs” and “Changing the Current
SCSI IDs.”
Tables showing default SCSI IDs for basic SCSI addressing and LUN addressing
are in Appendix B.
Setting the LUN Mode
READY>ADMIN *>SCSI ID’S *>CHOOSE LUN MODE *
Operating the
Jukebox
NOTEIf you are unfamiliar with basic SCSI addressing or LUN addressing, refer to
Appendix B. A web site is also available for more extensive information at
www.hp.com/isgsupport/optical/index.html
NOTECheck your host system documentation and jukebox application software
documentation to verify that the use of LUNs is supported.
Start withREADYin the display.
1. Press
2. Enter the administration passwo rd.
3. Press
4. VIEW ID’S displays. Press
Chapter 33-15
NEXT until ADMIN * displays and then press ENTER.
Instructions for entering this password are in “Entering the Administration
Menu Password” previously in this chapter.
NEXT until SCSI ID’S displays, and then press ENTER.
NEXT until CHOOSE LUN MODE * displays and
then press
is blinking.
ENTER. LUN MODE ON or LUN MODE OFF displays and ON or OFF
Operating the Jukebox
Setting the SCSI IDs
5. Press NEXT to change the setting and then press ENTER. WAIT FOR UPDATE
and then TURNED OFF or TURNED ON display briefly. Then SCSI ID’S
displays.
You may now view the S CSI I D an d LUN num bers u sin g VIEW ID’S, or set a
new SCSI ID numbe r using SET ID’S. (See the following two sections.)
Viewing the Current SCSI IDs
READY > ADMIN * > SCSI ID’S * > VIEW ID’S * >
NOTEIf you are unfamiliar with basic SCSI addressing or LUN addressing, refer to
Appendix B. A web site is also available for more extensive information at
www.hp.com/isgsupport/optical/index.html
Start withREADYin the display.
1. Press
NEXT until ADMIN * displays, and then press ENTER.
2. Enter the administration passwo rd.
Instructions for entering this password are in “Entering the Administration
Menu Password” previously in this chapter.
3. Press
4. VIEW ID’S displays. Press
NEXT until SCSI ID’S displays, and then press ENTER.
ENTER.
5. JKBX ID # LUN # or DRV # ID # LUN # displays. (JKBX ID # stands
for the current ID of the jukebox controller, DRV # ID # is the current ID
setting of the displayed drive number, and “LUN #” is the current logical unit
number.)
NEXT or PREV to scroll through the current SCSI IDs and LUNs.
Press
NOTETables in Appendix B show the default SCSI IDs and LUNs when LUN mode is
turned on.
6. Press
CANCEL twice to exit VIEW ID’S.
3-16Chapter 3
Operating the Jukebox
Setting the SCSI IDs
Changing the Current SCSI IDs
READY > ADMIN * > SCSI ID’S * > SET ID’S *
NOTEIf you are unfamiliar with basic SCSI addressing or LUN addressing, refer to
Appendix B. A web site is also available for more extensive information at:
www.hp.com/isgsupport/optical/index.html
Start withREADYin the display.
1. Press
NEXT until ADMIN * displays, and then press ENTER.
2. Enter the administration passwo rd.
Instructions for entering this password are in “Entering the Administration
Menu Password” previously in this chapter.
3. Press
4. VIEW ID’S displays. Press
NEXT until SCSI ID’S displays, and then press ENTER.
NEXT until SET ID’S displays and then press
ENTER.
If you are using basic SCSI addressing (LUN mode OFF):
JKBX ID # LUN # or DRV # ID # LUN # displays. (JKBX ID #
stands for the current ID of the jukebox controller, LUN # is the current logical
unit number, and DRV # ID # is the current ID setting for the displayed drive
number.) When using basic SCSI addressing, the LUN # is always 0.
If you are using LUN addressing (LUN mode ON):
JKBX ID # or DRVs # ID displays. (“#” is the current ID for the jukebox
controller and drives when LUN mode is ON.)
5. Press
NEXT until the setting you wish to change dis pla ys , and then press ENTER.
The # (current ID) begins flashing.
NOTEIn the next step you will choose a new ID. Review this note.
This jukebox, by default, assigns ID 6 to th e jukebox controller. When in LUN
mode, the jukebox controller ID us es LUN 0 for itself an d assigns the dr ives to LUN
1 to 2 or 1 to 4 (dependi ng on whether y ou have t wo or fou r driv es on in yo ur m odel
of the jukebox).The result is that there are two types of devices (controller and
drives) at ID 6.
Operating the
Jukebox
Some host computer systems do not allow you to assign diff erent device types to the
same ID.
Chapter 33-17
Operating the Jukebox
Setting the SCSI IDs
If your host computer system does not support multip le types at the same ID and
you want to use LUN mode, you must select different IDs for the jukebox co ntro ller
(JKBX ID #) and the drives (DRV #). Tables in Appendix B show jukebox default
settings and an example of setting t he jukeb ox con t roll er and dri ves t o different IDs
(one digit apart).
If another device ID is placed between the jukebox controller and the drives,
problems can result . For this reason, the jukebo x will not accept IDs for the j ukebox
controller and drives that are more than one digit apart. You will receive a
CONFLICT message.
6. Press
NEXT or PREV until the new ID that you want displays and then press
ENTER.
If the jukebox is set to LUN MODE ON, go to Step 8. Only one ID can be
changed and the ID automatically updates when you press
7. (If using basic SCSI address i ng - LUN mode OFF) Press
displays, and t he n press
ENTER.
ENTER.
NEXT until UPDATE
8. UPDATE or WAIT FOR UPDATE and then ID’S SAVED displays briefly.
• If the new settings do not conflict with other SCSI IDs on the bus, SCSI
ID’S displays.
•If the new settings conflict with ot her IDs on the SCSI bus,
CONFLICT-ABORTED displays briefly and then VIEW ID’S displays.
Any changes entered are lost, and you must repeat steps 3 through 6 to set a
new ID.
NOTEWhen in LUN mode:
If the new ID you choose results in the IDs for the jukebox controller and th e driv es
being more than one digit apart, the jukebox displays CONFLICT and rejects the
ID.
9. Press
CANCEL until READY displays.
CAUTIONTurning off the jukebox in the next step could cause data loss if not done correctly.
Do not turn off power to the jukebox until you are sure the SCSI bus is inactive.
Check your host system manuals for information about checking the SCSI bus
status. If your computer is connected to a LAN, be sure to check with your system
administrator before turning off power to the jukebox.
10. Turn the jukebox OFF, then ON to save the IDs to the jukebox flash ROM.
3-18Chapter 3
Operating the Jukebox
Setting an Operating Configuration
Setting an Operating Configuration
READY>ADMIN *>CONFIG *
You can set configurations to customize the way the jukebox operates.
Start withREADYin the display.
1. Press
NEXT until ADMIN * displays.
2. Enter the administration passwo rd.
Instructions for entering this password are in “Entering the Administration
Menu Password” previously in this chapter.
3. TEST * displays. Press
4. Press
NEXT or PREV until the name of the con fi gur at io n yo u wis h t o s et disp lays
and then press
ENTER. (Configurations are described on the following pages.)
NEXT until CONFIG * displays, and then pr ess EN TER.
If the configuration has multiple settings, th e current set ting flashes. Otherwise,
the configuration is set and a confirmation message displays.
5. If the current configuration setting is flashing, press
desired setting displays, and then press
ENTER. OPTION SAVED displays and
NEXT or PREV until the
then the configuration’s name and setting displays.
6. Press
CANCEL to return to READY.
CAUTIONTurning off the jukebox in the next step could cause data loss if not done correctly.
Do not turn off power to the jukebox until you are sure the SCSI bus is inactive.
Removing power from a SCSI device when the bus is active can result in data loss
and/or indeterminate bus states. Check your host system manuals for information
about checking the SCSI bus status. I f your computer is co nnected to a LAN, be sure
to check with your system administrator before turning off power to the jukebox.
Operating the
Jukebox
7. Turn the jukebox OFF, then ON to save the configuration to the jukebox flash
ROM.
Configurations are described in the following table.
Chapter 33-19
Operating the Jukebox
Setting an Operating Configuration
Table 3-1Configuration Choices
Configuration
Name
RECOVERY
ON/OFF
RESTORE
DEFAULTS
CLEAR
ODOMETERS
DUAL PICKER
ON/OFF
STARWARS
ON/OFF
Description
Toggles between ON and OFF. If the configuration is
set to ON, the jukebox attempts to recover from errors;
if the configuration is set to OFF, the jukebox
immediately stops moving if an error condition occurs.
The default configuration is RECOVERY ON, and
recovery should remain ON under normal conditions.
Sets all jukebox configurations to default settings.
Used by service personnel only. Sets all jukebox
odometers to zero.
Toggles between ON and OFF. (The default setting is
DUAL PICKER ON, and dual picker mode should
remain ON under normal conditions.) If the
configuration is set to ON, the jukebox runs with dual
picker (disk transport) addressing ON; if the
configuration is set to OFF, the jukebox runs with dual
picker (disk transport) addressing OFF.
Used by service personnel only. Should be set to ON
during normal operation. Toggles between ON and
OFF. The ON configuration enables the vertical
sensors; the OFF configuration disables the vertical
sensors.
NEW PASSWORDAllows you to change t he numerical password r equired
to access the menu choices under the ADMIN * menu
on the jukebox control panel. These choices include
configurations, tests, and information logs. To change
the security code, see “Changing the Administration
Menu Password” in this chapter.
SCSI LOG
ON/OFF
3-20Chapter 3
Used by service personnel only. Should be set to OFF
during normal operation. Toggles between ON and
OFF. Tracks internal SCSI states and saves the
information to a log.
Operating the Jukebox
Setting an Operating Configuration
Configuration
Name
SECURE ON/OFFToggles between ON and OFF. Th e ON configuration
disables loading and ejecting disks. The OFF
configuration enables loading and ejecting disks (the
default state of the jukebox).
SECURE MAIL
OUT/IN
POWER SECURE
ON/OFF
REP
RECOVERED
ON/OFF
CONF40 ON/OFFUsed by service personnel only. Changing this
Toggles between OUT and IN. Determines the
orientation of the mailslot when th e SECURE
configuration is set to ON. When set to OUT, the
mailslot remains in its normal orientation. When set to
IN, the mailslot rotates in, making it inaccessible.
Toggles between ON and OFF. Th e ON configuration
retains your selection of the SECURE configur ation
through power cycling (or power outage). The OFF
configuration allows the jukebox to return to th e
default setting of this configuration after a power
cycling (default setting is OFF).
Toggles between ON and OFF. When set to ON,
recovered errors are reported; when set to OFF,
recovered errors are not reported.
configuration may result in a service call.
Description
Operating the
Jukebox
WRITE VERIFY
ON/OFF
Chapter 33-21
Toggles between ON and OFF. When set to ON
(default), write verify is forced. When set to OFF, the
drives may write verify or not , depen di ng o n how t hey
are manually configured or h ow they are conf igured by
the jukebox application software.
Operating the Jukebox
Retrieving Log History
Retrieving Log History
READY>ADMIN *>INFO *
You can display information stored in the juk e box operating logs by using the
INFO * menu.
Start withREADYin the display.
1. Press
NEXT until ADMIN * displays.
2. Enter the administration passwo rd.
Instructions for entering this password are in “Entering the Administration
Menu Password” in this chapter.
3. TEST * displays. Press
4. Press
NEXT until the name of the log you wish to access displays and then press
ENTER. (A “*” indicates that there are more selections beneath the displayed
choice.)
5. After you are finished viewing log information, press
READY.
Information logs are described in the following table.
Table 3-2Information Logs
Log Name Description
REVISIONJukebox firmware version number.
JUKEBOX *Press
product #Product identification string
SN #Serial number of the unit.
NEXT until INFO * displays, and then press ENTER.
CANCEL to return to
ENTER to select the information des cribe d in the
next five rows.
FW TYPE ##Code that identifies the type of firmware used in the
unit.
DRIVES #Number of drives in the unit.
SLOTS #Number of available storage slots in the unit.
3-22Chapter 3
Operating the Jukebox
Retrieving Log History
Log Name Description
JKBX ODOMETERS *Press ENTER to select the odometer logs described in
the next five rows.
HOURSNumber of operation hours (time the power was on).
Some of the time may be while in power reduction
mode.
MOVESTotal moves and move attempts by the disk transport
mechanism.
FLIPSTotal disk transport mechanism flips.
XLATESTotal disk transport mechanism horizontal moves.
ROTATESTotal mailslot rotations.
Operating the
Jukebox
DRIVE LOADS *Press
ENTER to select the logs under this selection.
DRIVE #Total disk loads for the drive numbered “#.”
DRIVE FW *Press
ENTER to select the logs under this selection.
D# REV x.xxDrive firmware revision code. “D#” is the drive
number and x.xx is the code. Press
NEXT or PREV to
select drive numbers.
DRIVE SN *Press
ENTER to select the logs under this selection.
D# xxxxxxxSerial number of the drive where “#” is the drive
number. Press
NEXT or PREV to select drive numbers .
HARD ERROR *Log of unrecoverable errors (commands that did not
successfully complete). Returns either NO HARD ENTRIES or ENTRY #. (There may be multiple hard
error numbers.)
ENTER to view the log for the currently
Press
displayed error, or press
NEXT to select the next error.
(Log entries are described in the rows following
RECOVERY ERROR * in this table.)
Chapter 33-23
Operating the Jukebox
Retrieving Log History
Log Name Description
SOFT ERROR *Log of recovered errors (commands that complete
successfully). Returns either NO SOFT ENTRIES or
ENTRY #. (There may be multiple soft error
numbers.)
ENTER to view the log for the currently
Press
displayed error, or press
NEXT to select the next error.
(Log entries are described in the rows following
RECOVERY ERROR * in this table.)
RECOVERY ERROR *Log of errors during the most recent move. Returns
either NO ENTRIES or the number of recovery
errors.
ENTER to view the log for the currently
Press
displayed error, or press
NEXT to select the next error.
(Log entries are described in the following rows.
*HARDWARE ERR #Internal diagnostics error number of the cause of the
failure.
*FRU 1 #Field replaceable unit most likely to be at fault.
*FRU 2 #Field replaceable unit second most likely to be at fault.
*FRU 3 #Field replaceable unit third most likely to be at fault.MOTION <name><name> indicates one of the following types of
movements taking place in the jukebox at the time of
the failure:
•EXCHANGE
•MOVE
•POSITION
• INIT ELEM
•REZERO
•ROTATE
•DIAGNOSTIC
•RESTORE
3-24Chapter 3
Operating the Jukebox
Retrieving Log History
Log Name Description
SOURCE #Element number to which the source refers. (This
information is valid for MOVE, EXCHANGE, and
POSITION movements only.)
DESTINATION 1 #Element to which the first destination refers. (This
information is valid for MOVE and EXCHANGE
movements only.)
DESTINATION 2 #Element to which the second destination refers. (This
information is valid for the EXCHANGE movement
only.)
ODOMETER #Move number in which the error occurred.
*MICROMOVE 1 #First jukebox micro-move for the original move
command issued prior to the failure.
*MICROMOVE 2 #Second jukebox micro-move for the original move
command issued prior to the failure.
*MICROMOVE 3 #Third jukebox micro-move for the original move
command issued prior to the failure.
Operating the
Jukebox
*MICROMOVE 4 #Fourth jukebox micro-move for the original move
command issued prior to the failure.
*MICROMOVE 5 #Fifth jukebox micro-move for the original move
command issued prior to the failure.
*MICROMOVE 6 #Sixth jukebox micro-move for the original move
command issued prior to the failure. (This is the last to
be logged.)
*MICROMOVE ER #Micro-move error that occurred.
TOP or BOTTOM
PICKER
NORTH or SOUTH
THUMB
* Press ENTER to display more information
Chapter 33-25
Displays either TOP or BOTTOM indicating which side
of the disk transport mechanism was active at the time
of the error.
Displays either NORTH or SOUTH indicating which
thumb on the transport mechanism was active at the
time of the error.
Operating the Jukebox
Running an Internal Test
Running an Internal Test
READY>ADMIN *>TEST *
The optical jukebox can run self-diagnostic tests. See the Caution note be low.
CAUTIONSome of the internal diagnostic tests of this jukebo x can corrupt your file system if
not properly completed (for example, disks can be placed in unexpected locations).
In almost all cases, these tests should be run only by authorized service personnel.
Service, however, may request that you run specific tests to provide information
before they come to your site. The descriptions of these tests are include d in this
manual only for your information.
Instructions for running internal tests are included in this guide to help you run tests
if requested by service. There is a possibility you may run one test as a result of
troubleshooting; this test is “INIT ELEM STATUS.”
Start withREADYin the display.
1. Press
NEXT until ADMIN * displays.
2. Enter the administration passwo rd.
Instructions for entering this password are in “Entering the Administration
Menu Password” previously in this chapter.
3. TEST * displays. Press
4. Press
NEXT until the name of the test you wish to run displays and then press
ENTER to start the test.
ENTER.
NOTEYou may press CANCEL at any time to abort a test. A delay may occur while the
current test loop completes.
3-26Chapter 3
Table 3-3Internal Tests
Test NameDescription
Some of the following tests can corrupt your data if not completed properly.
Those tests are noted with a “Used by service...” alert. Do not run these tests.
If you are in contact with your service representative, you may be requested to
run one or more of the remaining tests as par t of the early phases of a diagnostic
procedure. Also, you may receive a control panel message to “RUN ISTAT
TEST” which, the troubleshooting table explains, means to run the INIT
ELEM STATUS test. It is for these two, limited situations that the instructions
for running internal tests is included in this user guide and why the tests are
described.
Operating the Jukebox
Running an Internal Test
Internal Tests are normally for service use only.
Operating the
Jukebox
EXCHANGE
DEMO
INIT MECHANICSRuns the FIND PLUNGE HOME, FIND VERTICAL
INIT ELEM
STATUS
Used by service personnel only. Do not run this test if
the jukebox contains disks with file system data on
This test mo ves randomly -chosen opt ical disks to
them.
random storage slot locations. This test displays FAIL
if there are no disk s in the ju kebox or if al l st orage slo ts
are full. For best results, the jukebox should contain as
many disks as there are drives, plus two additional
disks. The transport and mailslot must be empty.
HOME, FIND XLATE HOME, and INIT ELEM
STATUS tests. Each test is run one time per test loop.
Physically scans the entire unit to determine which
storage slots contain disks and if the drives contain
disks.
NOTE: This test appears as “ISTAT TEST” in all
control panel error messages.
Chapter 33-27
Operating the Jukebox
Running an Internal Test
Test NameDescription
MAGAZINE IOMakes a combination of moves with a PASS/FAIL
result. It moves an opti cal disk from a randoml y-chosen
full slot to a randomly-chosen empty slot with a
random flip. It then moves the disk back to its original
storage slot with its original orientation . This test
displays FAIL if there are no disks in the jukebox o r if
all storage slots are full. The drives and mailslot must
be empty.
DRIVE IOMakes a combination of moves with a PASS/FAIL
result. It moves an optical disk from a randomlychosen full slot to a randomly-chosen drive with a
random flip. It then moves the cartridge back to its
original slot with its original orientation. This test
displays FAIL if there are no disks in the jukebox o r if
all storage slots are full. The drives and mailslot must
be empty.
MAILSLOT IOMakes a combination of moves with a PASS/FAIL
result. It moves an optical disk from the lowestnumbered full slot to the mailslot with a random flip. It
then moves the cartridge back to its original slot with
its original orientation. This test displays FAIL if there
are no disks in the jukebox or if all storage slots are
full. The drives and mailslot must be empty.
VERTICAL TESTMoves the disk transport mechanism up and down the
full length of the rail. Returns PASS/FAIL. No disks
are required.
TRANSLATE
TEST
FLIP TEST
Moves the disk transport mechanism from side to side.
No disks are required.
Makes a combination of moves with a
PASS/FAIL
result. Flips the disk transport mechanism at
various locations. No disks are required.
PICKER TESTFlips the disk transport mechanism and switches active
thumbs. No disks are required
3-28Chapter 3
.
Running an Internal Test
Test NameDescription
Operating the Jukebox
FIND PLUNGE
HOME
FIND VERT HOMERecalibrates the vertical position of the disk transport
FIND XLATE
HOME
VERTICAL
ENCODER
EMPTY DRIVESUsed by service personnel only. Do not run this test if
Calibrates the disk transport mechanism, establishes the
mechanism’s orientation, and determines the reference
points in the picker travel path. Assumes that the
mechanics and servo system are functional. No disks
are required.
mechanism and verifies that the vertical path is clear.
No disks are required.
Calibrates the reference points for the side-to-side
motion of the disk transport mechanism. No disks are
required.
Moves the disk transport mechanism down to the lower
stop, moves it back up a short distance, and then moves
it back down. On the second downward motion the
number of digital pulses is counted and verified.
Returns PASS/FAIL. No disks are required.
the jukebox contains disks with file system data on
Moves disks out of the drive mechanism(s) and
them.
returns them to their home storage slot locations if the
locations are known. If the home storage location is not
known, the jukebox moves the di sks into the first
available empty storage slot.
Operating the
Jukebox
EMPTY PICKERUsed by service personnel only. Do not run this test if
the jukebox contains disks with file system data on
Moves a disk from the disk transport mechanism
them.
to its home storage slot location if that lo cation is
known, otherwise the disk is placed into the first
available empty storage slot.
FILL PICKERUsed by service personnel only. Do not run this test if
the jukebox contains disks with file system data on
them.Moves a disk into the disk transport mechanism
from the first storage slot containing a disk. This test
must be run twice to fill both containers in the disk
transport mechanism.
Chapter 33-29
Operating the Jukebox
Running an Internal Test
Test NameDescription
EXERCISE MECHRuns the VERTICAL TEST, TRANSLATE TEST,
FLIP TEST, MAGAZINE IO, DRIVE IO, and
MAILSLOT IO tests. Each test runs one time per test
loop.
WELLNESS TESTChecks the general capability of the jukebox. Requires
one loaded disk. The drives, transport, and mailslot
must be empty. Runs
EXERCISE MECHANICS. Each test runs one time per
test loop.
CLEAR SOFT LOGSets the soft error log to zero.
INIT MECHANICSand
CLEAR HARD
LOG
PLUNGE FULL
SPD
PLUNGE 1/2 SPD
PLUNGE 1/4 SPD
STARWARSThe display shows 0 0 0.
Sets the hard error log to zero.
Allows the disk transport mechanics to run at full
speed. This setting should always be used in normal
jukebox operation.
Used by service personnel only.
transport mechanics to run at half speed
Used by service personnel only.
transport mechanics to run at quarter speed.
Each “0" indicates one of the paths that the disk
transport mechanism follows in front of each stack of
optical disks. If the path is clear, a “0” displays; if the
path is blocked (because of an optical disk that is not
inserted fully into its storage slot for example), an “*”
will be displayed. This display is automatically updated
if the status changes.
Allows the disk
.
Allows the disk
3-30Chapter 3
Running an Internal Test
Test NameDescription
Operating the Jukebox
BOTTOM THUMB
TOP THUMB
TRANSLATE
SENSOR
Used by service personnel only.
THUMB B, orNO THUMB. Looks at the top and bo ttom
thumb sensors and reports whether the thumbs on the
disk transport mechanism are in the forward or back
position. If
specified thumb is the forward position. If
is returned, both thumbs are in the back position.
Used by service personnel only.Reports
Looks at the top thumb sensor whi ch reports whether or
not the thumb that is currently on the top side of the
disk transport mechanism is in the forward position. If
ON is reported the thumb is in the back position ; if
OFF is reported the thumb is in the forward posit ion.
Reports
calibration sensor. (Display automatically updates if the
status changes.)
THUMB AorTHUMB Bis returned, the
ON orOFFafter looking at the translate
ReportsTHUMB A,
NO THUMB
ONor OFF.
Operating the
Jukebox
Chapter 33-31
Operating the Jukebox
Using Online Repair
Using Online Repair
The online repair selection allows an authorized service representative to replace a
faulty drive while the jukebox remains online and activ e. This feature is available only if enabled by your jukebo x ap plication software.
CAUTIONSelecting online repair should be done only by an authorized service representative.
This procedure could cause the jukebox optical drives to become inactive.
3-32Chapter 3
Operating the Jukebox
Troubleshooting
Troubleshooting
This section provides st ep s yo u can t ake when pro bl ems occur d uri ng operation. To
troubleshoot prob lems, fi rst refer to the p rocedures in th is tr oubleshoot ing sect ion. If
these procedures do not correct the problem, check the HP web site at
www.hp.com/isgsupport/optical/index.html and the other support services listed in
Appendix A.
NOTEIf a service call is necessary, gather the following information before calling:
•model of your jukebox
•serial number
•brand and model of your host computer
•brand and model of your host c omputer SCSI adap ter
•jukebox application software you are using and its version
•any jukebox driver separate from your jukebox application software and the
version of this driver
For problems that may be related to your host computer system or jukebox
application software, refer to that documentation for guidance.
Operating the
Jukebox
Chapter 33-33
Operating the Jukebox
Troubleshooting
Table 3-4Troubleshooting
ProblemWhat to do
Jukebox won’t power on.•Ensure that power cord connections are tight.
•Ensure that the power switch is ON (located on
the lower right side of the jukebox rear panel).
•Ensure that the power outlet is operating.
•Replace the power cord with a known good one.
•If steps above are unsuccessful, call your service
representative.
Poweron selftest failed
and DEVICE FAILED
displays
•Power cycle the jukebox.*
•If the poweron test continues to fail, press
ENTER, write down the displayed error code, and
call your service representative.
DEVICE FAILED
displays.
Hardware Error #61
(External SCSI cables) is
reported.
•Ensure that only one SCSI device type
(single-ended OR differential) exists on the SCSI
bus.
•Verify that the SCSI interface selection switch is
set correctly (either single-ended or differential).
•Verify that the terminator is the correct type
(single-ended or differential).
•If steps above are unsuccessful, call your service
representative.
Power to the jukebox
failed while a disk was in
the drive and the display
did not return to READY
after the power came back
on.
*
Ensure that the SCSI bus is inactive before removing power to the jukebox.
•Power cycle the jukebox.*
•If READY does not display (poweron test is
unsuccessful), switch off the power. Do not
move the unit! Moving the unit ri sks damaging
the optical drive. Call your service
representative.
Removing power to a device on an active SCSI bus can cause data loss and/or
problems with the SCSI interface.
3-34Chapter 3
Operating the Jukebox
Troubleshooting
ProblemWhat to do
No display messages.•Ensure that the power cord is connected.
•Ensure that the power switch is ON.
•Power cycle the jukebox.*
•If steps above are unsuccessful, call your service
representative.
Changed the drive ID but
the new ID isn't
Some computers require a restart to recognize new
SCSI IDs.
recognized.
•Ensure the SCSI bus is inactive and restart your
host computer.
Forgot your password.• Enter the default password (000 000 000).
•If the default password is not accepted, call your
service representative.
Disk inserted in the
mailslot but LOAD ERROR or FAILED
displays.
•Press
CANCEL. Insert the disk in the mailslot
again. See “Loading an Optical Disk into the
Jukebox” in this chapter for the correct disk
loading orientation.
•If the light bar on the front panel is ora nge, cycl e
power to the jukebox.* Try to load the disk again
when READY displays.
•If the disk is in the mailslot correctly and these
error messages repeat, call your service
representative.
Disk inserted in the
mailslot but RESERVED
displays
The SECURE configuration is set. Disks cannot be
loaded.
•If appropriate, change this setting. See “Setting
an Operating Configuration” in this chapter. The
current administration password is required.
Operating the
Jukebox
*Ensure that the SCSI bus is inactive before removing power to the jukebox.
Removing power to a device on an active SCSI bus can cause data loss and/or
problems with the SCSI interface.
Chapter 33-35
Operating the Jukebox
Troubleshooting
ProblemWhat to do
Disk inserted in the
mailslot but MAILSLOT EMPTY displays
Disk inserted in the
mailslot but DEST NOW FULL displays
Disk inserted in the
mailslot but
TRANSPORT FULL
displays
Disk inserted in the
mailslot but MAILSLOT SENSOR displays
The mailslot sensors do not detect a disk in the
mailslot.
•Remove and then replace the disk fully into the
mailslot. If the same error reappears, the mailslot
sensors may be defective. Contact your service
representative.
The jukebox moved a disk into the slot you chose
before your load command executed.
•Press
CANCEL, select another slot for the disk,
and then reattempt a load.
The disk transport mechanism already contains a
disk.
•Refer to your host and application
documentation for recovery procedures. If no
procedures are available, call your service
representative.
The jukebox mailslot sensors may have failed.
•Remove and then re-insert the disk. If this does
not correct the problem, call your service
representative.
Disk eject attempted but
an EJECT ERROR
message displays.
•Press
•If the light bar on the front panel is ora nge, c ycle
CANCEL. Attempt to eject the disk again.
power to the jukebox* and try to eject the disk
again when READY displays.
•If there is no disk in the mailslot and this error
message repeats, call your service representative.
*Ensure that the SCSI bus is inactive before removing power to the jukebox.
Removing power to a device on an active SCSI bus can cause data loss and/or
problems with the SCSI interface.
3-36Chapter 3
Operating the Jukebox
ProblemWhat to do
Troubleshooting
Disk eject attempted but
RESERVED displays.
Disk eject attempted but
empty and then EJECT *
displays.
Disk eject attempted but
TRANSPORT FULL
displays.
Disk eject attempted but
SOURCE NOW EMPTY
displays.
The jukebox application software reserved the
element for its use or a security configuration was
set to prevent disk ejection.
•If appropriate, change this setting See “Setting
an Operating Configuration” in this chapter. The
current administration password is required.
This is not an error. There are no disks in the
jukebox.
The disk transport mechanism already contains a
disk.
•Refer to your host and application
documentation for recovery procedures. If no
procedures are available, call your service
representative.
The application software moved the disk from the
slot you chose before your eject command executed.
Press CANCEL. You may ha ve to wait for the
•
application to replace the disk into the slot
before attempting another eject.
Operating the
Jukebox
Disk eject attempted but
MAILSLOT FULL
displays.
You want to stop a test
that is running.
*Ensure that the SCSI bus is inactive before removing power to the jukebox.
Removing power to a device on an active SCSI bus can cause data loss and/or
problems with the SCSI interface.
Chapter 33-37
A disk is in the mailslot.
•Remove the disk from the mailslot.
Select EJECT *, select the slot you want the
disk ejected from again, and eject the disk.
CANCEL. The current test loop continues until
Press
finished, then the test stops.
Operating the Jukebox
Troubleshooting
ProblemWhat to do
RUN ISTAT TEST
displays (this initializes
the element status)
Can't write to the disk.• Check the host file system access permissions.
*Ensure that the SCSI bus is inactive before removing power to the jukebox.
Removing power to a device on an active SCSI bus can cause data loss and/or
problems with the SCSI interface.
•Power cycle the jukebox.*
Run the INIT ELEM STATUS test under
•
TEST * menu
the
•If steps above do not result in a READY display,
call your service representative.
• Eject the disk and check that the write-protect
tab on each side of the disk is in the
write-enabled position.
• Check your application software.
• If steps above are unsuccessful, call your service
representative.
3-38Chapter 3
ASupplies and Customer Support
Customer Support
Supplies and
Supplies and Customer Support
Overview of This Appendix
Overview of This Appendix
This appendix provides information on the following topics:
•supplies and accessories
•shipping screw specifications
•HP customer support
A-2Appendix A
Supplies and Customer Support
Supplies and Accessories
Supplies and Accessories
A full range of computer supplies may be ordered through a Hewlett-Packard
authorized dealer or sales office, or by phoning or writing HP Direct.
Call 1-800-752-0900 for the location of your nearest authorized Hewlett-Packard
dealer.
To contact a Hewlett-Packard sales representative, see Table A-2 for a list of
addresses and phone numbers of HP sales offices.
To phone HP Direct call 1-800-538-8787.
To write to HP Direct use the following address:
HP Direct
Hewlett-Packard
P.O. Box 58195
Santa Clara, California 95052
USA
See Table A-1 for a list of basic supplies and accessories.
Table A-1Basic Supplies and Accessories
ItemHP Part Number
5.2- and 4.7-Gbyte Optical Disks
Rewritable optical disk (2,048 bytes/sector, 5.2
Gbytes, sing le disk)
Rewritable optical disk (2,048 bytes/sector, 5.2
Gbytes, 8-pack)
Write-once optical disk (2,048 bytes/sector, 5.2
Gbytes, sing le disk)
Write-once optical disk (2,048 bytes/sector, 5.2
Gbytes, 8-pack)
Customer Support
Supplies and
88147J
C6299J
88146J
C6298J
Appendix AA-3
Supplies and Customer Support
Supplies and Accessories
ItemHP Part Number
Rewritable optical disk (1,024 bytes/sector, 4.7
Gbytes, sing le disk)
Rewritable optical disk (1,024 bytes/sector, 4.7
Gbytes, 8-pack)
Write-once optical disk (1,024 bytes/sector, 4.7
Gbytes, sing le disk)
Write-once optical disk (1,024 bytes/sector, 4.7
Gbytes, 8-pack)
2.6- and 2.3-Gbyte Optical Disks
Rewritable optical disk (1,024 bytes/sector, 2.6
Gbytes, sing le disk)
Rewritable optical disk (1,024 bytes/sector, 2.6
Gbytes, 8-pack)
Write-once optical disk (1,024 bytes/sector, 2.6
Gbytes, sing le disk)
Write-once optical disk (1,024 bytes/sector, 2.6
Gbytes, 8-pack)
Rewritable optical disk (512 bytes/sector, 2.3
Gbytes, sing le disk)
88143J
C2589J
88145J
C2591J
92280F
C2589F
92290F
C2591F
92279F
Rewritable optical disk (512 bytes/sector, 2.3
Gbytes, 8-pack)
Write-once optical disk (512 bytes/sector, 2.3
Gbytes, sing le disk)
Write-once optical disk (512 bytes/sector,2.3
Gbytes, 8-pack)
SCSI Cables
50-Pin Low-Density to 50-Pin High-Density
1.0 m (3.3 ft) bail to thumb screwK2296
1.5 m (4.9 ft) bail to thumb screwK2297
A-4Appendix A
C2588F
92289F
C2590F
Supplies and Customer Support
Supplies and Accessories
ItemHP Part Number
0.9 m (2.9 ft) thumb screw to thumb screwK2294
1.5 m (4.9 ft) thumb screw to thumb screwK2295
50-Pin High-Density to 50-PinHigh-Density
0.5 m (1.6 ft) thumb screw to thumb screwC2955A
1.0 m (3.3 ft) thumb screw to thumb screwC2908A
1.5 m (4.9 ft) thumb screw to thumb screwC2956A
2.0 m (6.5 ft) thumb screw to thumb screwC2957A
5.0 m (16.5 ft) thumb screw to thumb screwC2958A
68-Pin High-Density to 50-Pin Low-Density
1.0 (3.3 ft) bail to thumb screwC2915A
2.0 m (6.5 ft) thumb screw to thumb screwC2906A
5.0 m (16.5 ft) thumb screw to thumb screwC2907A
20.0 m (65.6 ft) thumb screw to thumb screwC2916A
68-Pin High-Density to 68-Pin High-Density
0.9 m (2.9 ft) thumb screw to thumb screwC2911A
2.5m (8.2 ft) thumb screw to thumb screwC2924A
10.0 m (32.8 ft) thumb screw to thumb screwC2925A
20.0 m (65.6 ft) thumb screw to thumb screwC2926A
SCSI Terminators
50-pin active high-density (molded)C2904A
68-pin differential high-density (molded)C2905A
Customer Support
Supplies and
Appendix AA-5
Supplies and Customer Support
Supplies and Accessories
ItemHP Part Number
Disk Cleaners
RA-2 Manual Disk Cleaner
ProDisk Corporation
US Tel.(612) 439-6202 Fax (612) 439-5946
(approximately US$30)
KA-1 Automatic Disk Cleaner
ProDisk (see above)
(approximately US$559)
Documentation
User’s Guide (replacement/additional)C1160-90015
N/A
N/A
A-6Appendix A
Supplies and Customer Support
Hewlett-Packard Customer Support
Hewlett-Packard Customer Support
If your jukebox fails during the warranty period, and the suggestions in this user’s
guide and accompanying documentation do not solve your problem:
•Consult the Quick FAX or HP FIRST (FAX information Retrieval Support
Technology) facsimile assistance services.The phone numbers are under
“Faxback Services” on the next page.
•Consult one of the computer/modem connectivity services available, such as
America Online or CompuServe. The phone numbers are under “Electronic
Support Services” later in this appendix.
•Contact your authorized HP dealer distributor
NOTEBefore calling, please record the following information and have it ready when you
contact your service representative:
- model number of your jukebox
- serial number
Customer Support
Supplies and
- brand and model of your host computer
- brand and model of your host computer SCSI adapter
- jukebox application software you are using and its version
- any jukebox driver you may be using that is separate from your jukebox
application software and the version of this driver
Should you need additional support, call the Custom er Supp ort C enter in your
region. FAX, electronic services and support center numbers are given on the
following pages.
If your jukebox fails after the warranty period, contact your authorized HP
dealer/distributor or the nearest HP sales and service office. Customers in the US
and Europe can use a credit card for phone assistance. For details, see “Telephone
Support After Warranty” in this appendix.
Appendix AA-7
Supplies and Customer Support
Hewlett-Packard Customer Support
Faxback Services
Quick FAX and HP FIRST are automated systems that FAX requested product
information and/or technical support documents to you. These faxback services are
available 24 hours.
Simply dial the FAX number from a touch tone telephone or Grou p 3 facsimile
machine and follow the voice prompts that guide you to select an index of available
support an product documents.
French0800 55 1527
United Kingdom0800 960271
Other locations in
Europe
(toll line)
North and South
America and Canada
All other countries
(to the US)
+31 20 681 5792
(800) 368-9673 or (970) 635-1510
(970) 635-1510
Electronic Support Services
For 24-hour access to information over your modem, refer to the following listings.
On-line Service Providers
Technical information is available on CompuServe and America Online.
(Compuserve and America Online are not operated by Hewlett-Packard.)
Customer Support
Supplies and
Appendix AA-9
Supplies and Customer Support
Hewlett-Packard Customer Support
CompuServe HP systems Forum, Go HPSYS
America OnlineHP forum, Go HPSTOR
AccessHP and Support on the World Wide Web
Product and support information is available on the Hewlett-Packard web site:
Product information - www.hp.com
Support - www.hp.com/isgsupport/optical/index.html
Telephone Support During Warranty
To speak with someone for technical assistance within the hardware warranty of
your product, call a support representative at the location appropriate to your
location as listed below.
NOTEBefore calling, please record the following information and have it ready when you
contact your support center representative:
- model number of your jukebox
- serial number
- brand and model of your host computer
- brand and model of your host computer SCSI adapter
- jukebox application software you are using and its version
- any jukebox driver you may be using that is separate from your jukebox
application software and the version of this driver
US - America’s Customer Support Center
Monday - Friday, 7am - 5pm Mountain Time (970) 635-1000
Contact your authorized HP dealer/distributor or the nearest HP sales and service
office.
Telephone Support After Warranty
NOTEBefore calling, please record the following information and have it ready when you
contact your support center representative:
- model number of your jukebox
- serial number
- brand and model of your host computer
- brand and model of your host computer SCSI adapter
- jukebox application software you are using and its version
- any jukebox driver you may be using that is separate from your jukebox
application software and the version of this driver
North and South America and Canada
Using your VISA, MasterCard, or American Express call:
(800) 810-0130 - Per incident fee of $25.00 charged to your credit card.
(900) 555-1800 - $2.50 per minute up to a maximum of $25.00 per incident. You
must be 18 years of age or have parental permission to call this number.
Prices are subject to change without notice.
Europe
Call the numbers listed in the “Telephone Support Under Warranty” section. A per
incident fee will be charged for after warranty support. Please have a credit card, PO
number, or billing address ready.
A-12Appendix A
Supplies and Customer Support
Hewlett-Packard Customer Support
Elsewhere in the World
Contact your authorized HP dealer/distributor or the nearest HP sales and service
office.
Additional Telephone Support
Singapore Customer Care-Line for End-Users(65) 272-5300
HP Reseller Locator Numbers
US(800) 752-0900
Canada(800) 387-3867
Mexico and South America(305) 267-4220
Customer Support
Supplies and
Appendix AA-13
Supplies and Customer Support
Warranty
Warranty
HP PRODUCTDURATION OF WARRANTY
C1150J / C1160J/C1170JOne Year
1. HP warrants HP hardware, accessories and supplies against defects in materials
and workmanship for the period specified above. If HP receives notice of such
defects during the warranty period, HP will, at its option, either repair or replace
products which prove to be defective. Replacement products may be either new or
like-new.
2. HP warrants that HP software will not fail to execute its programming
instructions, for the period specified above, due to defects in material and
workmanship when properly installed and used. If HP receives notice of such
defects during the warranty period, HP will replace software media which does not
execute its programming instructions due to such defects.
3. HP does not warrant that the operation of HP products will be uninterrupted or
error free. If HP is unable, within a reasonable time, to repair or replace any product
to a condition as warranted, customer will be entitled to a refund of the purchase
price upon prompt return of the product.
4. HP products may con tain rema nufactured parts equivalent t o n ew i n perf orman ce
or may have been subject to incidental use.
5. The warranty perio d b egi ns o n the date of deliver y or on the date of instal l at ion if
installed by HP. If customer schedules or delays HP installatio n more than 30 days
after delivery, warranty begins on the 31st day from delivery.
6. Warranty do es not apply to defe cts resulting from (a) improper or inadequate
maintenance or calibration, (b) software, interfacing, parts or supplies not supplied
by HP, (c) unauthorized modification or misuse, (d) operation outside of the
published environmental specifications for the product, or (e) improper site
preparation or maintenance.
7. TO THE EXTENT ALLOWED BY LOCAL LAW, THE ABOVE
WARRANTIES ARE EXCLUSIVE AND NO OTHER WARRANTY OR
CONDITION, WHETHER WRITTEN OR ORAL, IS EXPRESSED OR IMPLIED
AND HP SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OR
CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, AND
FITNESS FOR A PARTICULAR PURPOSE.
A-14Appendix A
Supplies and Customer Support
Warranty
8. HP will be liable for damage to tangible property per incident up to the greater of
$300,000 or the actual amount paid for the product that is the subject of the claim,
and for damages for bodily injury or death, to the extent that all such damages are
determined by a court of competent jurisdiction to have been directly caused by a
defective HP product.
9. TO THE EXTENT ALLOWED BY LOCAL LAW, THE REMEDIES IN THIS
WARRANTY STATEMENT ARE CUSTOMER’S SOLE AND EXCLUSIVE
REMEDIES. EXCEPT AS INDICATED ABOVE, IN NO EVENT WILL HP OR
ITS SUPPLIERS BE LIABLE FOR LOSS OF DATA OR FOR DIRECT,
SPECIAL, INCIDENTAL, CONSEQUENTIAL (INCLUDING LOST PROFIT OR
DATA), OR OTHER DAMAGE, WHETHER BASED IN CONTRACT, TORT,
OR OTHERWISE.
Customer Support
Supplies and
Appendix AA-15
Supplies and Customer Support
Warranty
A-16Appendix A
BOperating This Jukebox on a SCSI Bus
Operation on a
SCSI Bus
Operating This Jukebox on a SCSI Bus
A Brief Overview of SCSI
A Brief Overview of SCSI
General
The Small Computer System Interface (SCSI), is a contention-based bus that
accommodates different speed devices without impacting the devices with faster
transfer speeds. This specification was defined by the American National Standards
Institute (ANSI) in 1986. The specification defines both the physical medium and
the command set used to transf er inf orma tion. Late r d evelop ments are kno wn u nder
the newer specifications, SCSI-2 and SCSI-3.
The SCSI Bus
The common SCSI buses are 50-p in and 68-pin . The 50-pin bu s, which uses ei ght of
its lines for data transmission, is called a "narrow" bus. The narrow bus can support
eight devices. The 68-pin bus, which uses 16 lines for data transmission is called a
"wide" bus. The wide bus can support 16 devices.
Initiators and Targets
SCSI devices on the bus are either “initiators” or “targets.” An initiator (usually the
host computer) originates a transaction and the target (usually a peripheral device)
fulfills the request.
Initiators and targets identify themselves on the bus by a SCSI ID. The ID is
designated by the user and is set electronically or man ually depending on the device.
In addition to identifying a device on the bus, the ID also determines the priority of
the device during contention among the devices for use of the bus.
The narrow SCSI bus, with its eight data lines, can communicate with eight devices
that have IDs from 0 to 7. The wide SCSI bus, with its 16 data lines, can
communicate with 16 devices that have addresses from 0 to 15. The host adapter,
which links the host computer to the SCSI bus, is also a SCSI device (initiator), and
is usually assigned an ID of 7.
Priority of IDs ascends from lowest to highest but this ascending priority, however,
is in blocks of eight IDs, and the block from 8 to 15 is actually defined to be at a
lower priority than ID 0, the lowest address on the "narrow" portion of the bus. This
is done so that if a narrow device is placed on a wide bus, the wide devices, which
can "see" the lower addresses, will always defer to the lower addresses when they
contend for the bus. Otherwise, a narrow device, which cannot "see" any device at
B-2Appendix B
Operating This Jukebox on a SCSI Bus
A Brief Overview of SCSI
an ID greater than 7, would always assume it won the contention and would attempt
to talk, perhaps at the same time as a device with an ID above 7 th at was contending
for the bus. The following diagram shows the priority scale of IDs when the priority
of the two blocks of eight are reversed.
Priority
8 9 10 11 12 13 14 15 0 1 2 3 4 5 6 7
Narrow
Addresses
Wide Address Range
The diagram below shows the linear addressing of a simple, narrow bus with the
host adapter set at a SCSI ID of 7. The device ID does not determine where the
device is physically placed on the bus.
LUN Addressing
SCSI IDs are the top-level method of addressing devices on the bus. Another
method of addressing is also available; logical unit numberi ng (LUN). This metho d
enables a complex device, such as a jukebox, to group its internal SCSI devices to a
single SCSI ID.
The complex device is identified by a SCSI ID, but this complex device ass ign s
logical unit numbers (LUNs) to each device within it. Up to eight LUNs may be
assigned under a single SCSI ID. The LUNs that can be assigned are from 0 to 7
(LUN 0 is usually retained by the complex dev ice).
Appendix BB-3
Operation on a
SCSI Bus
Operating This Jukebox on a SCSI Bus
A Brief Overview of SCSI
To use this form of addressing, however, the jukebox application software, the SCSI
bus drivers and the host adapter firmware all have to support this mode of
addressing. The following diagram shows LUNs assigned to devices within the
device at ID 6.
Transfer Rates on the Bus
Initially, the SCSI specification defined a 5 MB/s synchronous data transfer rate on
the narrow bus. SCSI now al so defines "F ast" whi ch is 10 MB/s on a narrow bu s and
20 MB/s on a wide bus. Another definition is "Ultra," also known as "Fast-20"
which is 20 MB/s transfer rate on a narrow bus and 40 MB/s on a wide bus.
Termination
To keep signals on the SCSI bus from being reflected, “terminators” must be placed
at each end of the physical bus. These terminators may be either active or passive.
Passive termination is a resistor network. Active termination uses a voltage
regulator (the active component) to regulate the power of the resistor network to
provide more stable termination. Active termination is always preferred over
passive termination.
Depending on your SCSI device, termination is supplied by a using a physical
connector, by flipping a dipswitch, or by selecting th e termi nation setting in
software.
B-4Appendix B
Operating This Jukebox on a SCSI Bus
A Brief Overview of SCSI
Termination is always at both physical ends of the bus.
Single-ended and Differential Interfaces
The SCSI bus is electrically implemented in two ways: single-ended and
differential. These terms come from the way the signals are asserted on the bus.
Single-ended buses use a 5-volt signal that is referenced to ground. This method
makes the bus somewhat susceptible to noise and loss of signal quality over
distance. The maximum allowable length of a single-ended SCSI bus was initially 6
meters (19.7 feet). Fast SCSI requ ir ed t he maxi mu m l e ng th of the bus to be redu ced
to 3 meters (9.8 feet).
The differential bus uses two lines for each signal and measures the voltage
difference between the two signals. Differential retains more signal q uality than
single-ended and is not as sensitive to noise, allowing for a longer cable len gth. The
maximum allowable length of a differential bus is 25 meters (82 feet) for all types
buses (narrow, wide, fast, Fast-20).
Operation on a
SCSI Bus
Connectors
Narrow devices (50-pin) use the following connectors:
•50-pin low-density clip Centronics-type (ext ernal)
This is a large connector that is similar to a printer cable. This type of connector
is gradually being replaced by the Micro D connector, described below.
•50-pin high density Micro D (using thumbscrews or small clips) (external)
Appendix BB-5
Operating This Jukebox on a SCSI Bus
A Brief Overview of SCSI
•This connector is similar to a D-type connector, but smaller and with smaller pin
holes placed closer together.
•50-pin low-density ribbon (usu ally internal to the host)
Wide devices (68- pin) use the following connectors:
•68-pin high density Micro D connector ( external)
This connector is similar to a D-type connector, but longer and slimmer and with
smaller pin holes placed closer together. This connector is becoming the most
common.
•68-pin high density ribbon (usually internal to the host)
NOTEFor more complete information on the theory and operation of the SCSI bus, you
may want to go to:
Adaptec - major supplier in SCSI buses
www.adaptec.com
Symbios Logic - Working drafts of SCSI specifications
www.symbios.com/x3t10
B-6Appendix B
Operating This Jukebox on a SCSI Bus
The SCSI Bus and This Jukebox
The SCSI Bus and This Jukebox
This jukebox is a “fast and narrow” SCSI device with the capability to connect to
either a narrow single-ended bus or a wide differential bus.
In the diagram below, note that the single-ended (50-line) bus is brought directly
onto the jukebox internal narrow bus. The differential interface accepts a wide bus
in its 68-pin connector, but only uses the 50 data and control li ne s that comprise the
"narrow" portion of the bus. The other 18 lines that provide the upper IDs and data
of the wide bus are ignored. Note that all lines of the wide bus pass through the two
68-pin differential connectors. The wide bus is maintained as a wide bus.
The single-ended connectors are 50-pin and can accept only a narrow bus. The
differential ports use 68-pin connectors and can accept (and pass through) a wide
bus.
Figure B-1Single-ended and Differential Interfaces on This Jukebox
Appendix BB-7
Operation on a
SCSI Bus
Operating This Jukebox on a SCSI Bus
The SCSI Bus and This Jukebox
Adding Devices to the Bus
When considering adding other devices to the jukebox bus, yo u should consider the
following:
•Will adding a device onto a bus with this jukebox interfere or degrade the
performance of the jukebox or the device that is added?
•If the decision is made to add other devices to the jukebox bus, what SCSI
requirements must be observed to make sure the bus will wo rk?
Before addressing some questions involved in deciding whether to place another
device on the jukebox bus, we can say that, as a general rule, HP recommends that
this jukebox be the only device on a bus. The recommendation is the same whether
the bus is single-ended or differential. One reason for the recommendation is that
interactions on a SCSI bus can be complicated. The more devices on the bus, the
more chance for problems. Another reason is that this jukebox, when fully utilized,
is capable of using up the full bandwidth of the bus. Performance of one or all of the
devices on the bus can be affected.
Consider the quantity of data that the bus will have to carry, the frequency of data
transfer, and the priority of this data transfer in your business. If you are using the
jukebox as a backup or archive device, the demands on the jukebox will be different
than if the jukebox is used for near-online storage where requests for data are more
random in both frequency and amount. If you expect to be using the jukebox at the
same time as the other device, or devices, you shou ld exp ect to ex perien ce a drop in
performance.
Mixing Wide and Narrow Devices
As a preliminary note to this discussion, HP highly recommends that you do NOT
mix wide and narrow buses.
Connecting devices of the same bus width, such as all narrow (50-pin) is a simple
process of daisy-chaining the devices, and terminating both ends of the bus.
However, mixing narrow and wi de devices invites problems.
B-8Appendix B
Operating This Jukebox on a SCSI Bus
The SCSI Bus and This Jukebox
This method should only be implemented by an experienced systems integrator who
is highly knowledgeable about SCSI. Since the wide (68-pin) buses need more data
lines on the bus for their data transfer, it’s necessary that the cables connecting the
devices are 68 pin. The data would be lost if the devices were set up as depicted in
the figure below.
Because a narrow device only has a 50-pin connector, it will not transmit the eight
extra bits of data needed for the wide device on the end of the bus. Using only 50
lines also prevents the narrow device from passing along the IDs of devices at 8 or
above.
The lower eight data lines transfer commands and messages, allowing all devices,
regardless of size, to co-exist on the bus. However, data transfers and device
addressing occur on the higher bits. Since a narrow device can’t "see" the upper 8
data bits, that translates to it not being able to "see" wide devices with a SCSI ID
above 8. Remember the host adapter is a device, so if you’re mixing wide and
narrow devices on the bus, your host adapter must be at an ID that all devices can
address.
If mixing narrow and wide devices is unavoidable, use the configuration described
below:
Appendix BB-9
Operation on a
SCSI Bus
Operating This Jukebox on a SCSI Bus
The SCSI Bus and This Jukebox
It is very important that the 68-pin to 50-pin cable is p rop e rly co nfigured to assure
that the eighteen truncated lines are properly terminated.
Cable Lengths
Observe SCSI cable maximum lengths;
- 3 meters (9.8 feet) for the single-ended bus (remember, this is a fast device)
- 25 meters (82 feet) for the differential bus.
Termination
•Refer to the documentation that comes with your particular adapter to see how to
apply termination.
•Use active terminators to reduce noise sensitivity.
•Never terminate the bus at any place except the physical ends. Terminating the
bus in the middle will probably cause the bus to become inoperable or operate in
a state that could cause data loss.
•If devices are on both sides of the host computer adapter (such as hard drives
internal to the host computer and a jukebox exter nal to the host comp uter) m ake
sure that there is no termination on the host computer adapter. Termination must
be only on the device inside the computer that is farthest from the host adapter
and the physical device inside the computer, and the last physical device
external to the computer.
B-10Appendix B
Operating This Jukebox on a SCSI Bus
The SCSI Bus and This Jukebox
General
•Do not connect a single-ended bus to a differential bus. Damage can occur.
NOTEFor current information on issues relating to in stallation, operation, and support of
jukeboxes, you may want to go to:
HP Optical Storage
www.hp.com/isgsupport/optical/index.html
Appendix BB- 11
Operation on a
SCSI Bus
Operating This Jukebox on a SCSI Bus
Default SCSI IDs in the Jukebox When Using Basic SCSI Addressing
and When Using LUN Mode
Default SCSI IDs in the Jukebox When Using
Basic SCSI Addressing and When Using LUN
Mode