Before using this guide and the product it supports, read the information in Appendix C, “Service and Support,” on page 71
and Appendix D, “IBM Statement of Limited Warranty Z125-4753-08 04/2004,” on page 73.
Note
Please carefully review the information in “Cleaning the Drive Head” on page 14, “Updating Firmware” on page 26 and
“Using Ultrium Media” on page 31 sections as periodic maintenance is not covered by the IBM warranty. Repairs or
exchanges resulting from improper maintenance may result in billable service charges.
Läs säkerhetsinformationen innan du installerar den här produkten.
General safety guidelines
Always observe the following precautions to reduce the risk of injury and property
damage.
Service
Do not attempt to service a product yourself unless instructed to do so by the IBM
Support Center. Use only an IBM authorized service provider who is approved to
repair your particular product.
Note: Some partscanbeupgradedorreplacedbythecustomer.Thesepartsare
referred to as Customer Replaceable Units, or CRUs. IBM expressly identifies CRUs
as such, and provides documentation with instructions when it is appropriate for
customers to replace those parts. Yo u must closely follow all instructions when
performing such replacements. Always make sure that the power is turned off and
that the product is unplugged from any power source before you attempt the
replacement. If you have any questions or concerns, contact the IBM Support
Center.
Power cords and power adapters
Use only the power cords and power adapters supplied by the product
manufacturer.
Never wrap a power cord around the power adapter or other object. Doing so can
stress the cord in ways that can cause the cord to fray, crack or crimp. This can
present a safety hazard.
Always route power cords so that they will not be walked on, tripped over, or
pinched by objects.
Protect the cord and power adapters from liquids. For instance, do not leave your
cord or power adapter near sinks, tubs, toilets, or on floors that are cleaned with
liquid cleansers. Liquids can cause a short circuit, particularly if the cord or power
adapter has been stressed by misuse. Liquids can also cause gradual corrosion of
the power cord terminals and/or the connector terminals on the adapter which can
eventually result in overheating.
Always connect power cords and signal cables in the correct order and ensure that
all power cord connectors are securely and completely plugged into receptacles.
Do not use any power adapter that shows corrosion at the ac input pins and/or
shows signs of overheating (such as deformed plastic) at the ac input or anywhere
on the power adapter.
Do not use any power cords where the electrical contacts on either end show signs
of corrosion or overheating or where the power cord appears to have been
damaged in any way.
Ensure that extension cords, surge protectors, uninterruptible power supplies, and
power strips that you use are rated to handle the electrical requirements of the
product. Never overload these devices. If power strips are used, the load should
not exceed the power strip input rating. Consult an electrician for more
information if you have questions about power loads, power requirements, and
input ratings.
Plugs and outlets
If a receptacle (power outlet) that you intend to use with your computer
equipment appears to be damaged or corroded, do not use the outlet until it is
replaced by a qualified electrician.
Do not bend or modify the plug. If the plug is damaged, contact the manufacturer
to obtain a replacement.
Some products are equipped with a three-pronged plug. This plug fits only into a
grounded electrical outlet. This is a safety feature. Do not defeat this safety feature
by trying to insert it into a non-grounded outlet. If you cannot insert the plug into
the outlet, contact an electrician for an approved outlet adapter or to replace the
outlet with one that enables this safety feature. Never overload an electrical outlet.
The overall system load should not exceed 80 percent of the branch circuit rating.
Consult an electrician for more information if you have questions about power
loads and branch circuit ratings.
Batteries
Be sure that the power outlet you are using is properly wired, easily accessible,
and located close to the equipment. Do not fully extend power cords in a way that
will stress the cords.
Connect and disconnect the equipment from the electrical outlet carefully
All IBM personal computers contain a non-rechargeable coin cell battery to provide
power to the system clock. In addition many mobile products such as Thinkpad
notebook PCs utilize a rechargeable battery pack to provide system power when in
portable mode. Batteries supplied by IBM for use with your product have been
tested for compatibility and should only be replaced with IBM approved parts.
Never attempt to open or service any battery. Do not crush, puncture, or incinerate
batteries or short circuit the metal contacts. Do not expose the battery to water or
other liquids. Only recharge the battery pack strictly according to instructions
included in the product documentation.
Battery abuse or mishandling can cause the battery to overheat, which can cause
gasses or flame to “vent” from the battery pack or coin cell. If your battery is
damaged, or if you notice any discharge from your battery or the buildup of
foreign materials on the battery leads, stop using the battery and obtain a
replacement from the battery manufacturer.
Batteries can degrade when they are left unused for long periods of time. For some
rechargeable batteries (particularly Lithium Ion batteries), leaving a battery unused
in a discharged state could increase the risk of a battery short circuit, which could
viii IBM400/800GBLTO3 Tape Drive User’s Guide
shorten the life of the battery and can also pose a safety hazard. Do not let
rechargeable Lithium-Ion batteries completely discharge or store these batteries in a
discharged state.
Heat and product ventilation
Computers generate heat when turned on and when batteries are charging.
Notebook PCs can generate a significant amount of heat due to their compact size.
Always follow these basic precautions:
v Do notleavethebaseofyourcomputerincontactwithyourlaporanypartof
your body for an extended period when the computer is functioning or when
the battery is charging. Your computer produces some heat during normal
operation. Extended contact with the body could cause discomfort or, potentially,
a skin burn.
v Do notoperateyourcomputerorchargethebatterynearflammablematerialsor
in explosive environments.
v Ventilation slots,fansand/orheatsinksareprovidedwiththeproductforsafety,
comfort, and reliable operation. These features might inadvertently become
blocked by placing the product on a bed, sofa, carpet, or other flexible surface.
Never block, cover or disable these features.
CD and DVD drive safety
CD and DVD drives spin discs at a high speed. If a CD or DVD is cracked or
otherwise physically damaged, it is possible for the disc to break apart or even
shatter when the CD drive is in use. To protect against possible injury due to this
situation, and to reduce the risk of damage to your machine, do the following:
v Always store CD/DVD discs in their original packaging
v Always store CD/DVD discs out of direct sunlight and away from direct heat
sources
v Remove CD/DVD discs from the computer when not in use
v Do not bend or flex CD/DVD discs, or force them into the computer or their
packaging
v Check CD/DVDdiscsforcracksbeforeeachuse.Donotusecrackedor
damaged discs
General safety guidelines ix
x IBM400/800GBLTO3 Tape Drive User’s Guide
Safety and Environmental Notices
When using this product, observe the danger and caution notices contained in this
guide. The notices are accompanied by symbols that represent the severity of the
safety condition.
The sections that follow define each type of safety notice.
Danger Notices
A danger notice calls attention to a situation that is potentially lethal or extremely
hazardous to people.
Caution Notices
A lightning bolt symbol always accompanies a danger notice to
represent a dangerous electrical condition.
A caution notice calls attention to a situation that is potentially hazardous to
people because of some existing condition. A caution notice can be accompanied
by one of several symbols:
If the symbol is... It means....
A hazardous electrical condition with less severity than
electrical danger.
A generally hazardous condition not represented by other
safety symbols.
A hazardous condition due to the use of a laser in the
product. Laser symbols are always accompanied by the
classification of the laser as defined by the U. S. Department
of Health and Human Services (for example, Class I, Class
II, and so forth).
A hazardous condition due to mechanical movement in or
around the product.
A hazardous condition due to the weight of the unit.
Weight symbols are accompanied by an approximation of
the product’s weight.
End of Life (EOL) Plan
This product is a purchased unit. Therefore, it is the sole responsibility of the
purchaser to dispose of it in accordance with local laws and regulations at the time
of disposal. This unit contains recyclable materials. The materials should be
recycled where facilities are available and according to local regulations. Some
areas may provide a product take-back program that ensures proper handling of
the product. Contact your IBM representative for more information.
xii IBM400/800GBLTO3 Tape Drive User’s Guide
About This Guide
This guide includes the following information:
v “Product Description”onpage1describesthedrive,discussessupported
servers, operating systems, and device drivers.
v “Installing the Drive” on page 5 tells how to unpack and set up the drive.
v “Operating the Drive” on page 11 describes the unload button, and status light
on the drive. It explains the function of the message display and the
single-character display. It tells how to insert and remove a tape cartridge,
describes methods of updating drive firmware, and explains how to clean the
drive. It also lists the diagnostic and maintenance functions that the drive can
perform.
v “Using UltriumMedia”onpage31describesthetypesoftapecartridgestouse
in the drive and defines the conditions for storing and shipping them. It also
tells how to handle the cartridges, how to set a cartridge’s write-protect switch,
and how to order additional cartridges.
v “Resolving Problems”onpage43givestipsforsolvingproblemswiththedrive
and includes a flowchart that analyzes when the drive requires maintenance.
v “Servicing the Drive” on page 52 gives instructions on servicing the drive.
v Appendix A, “TapeAlert Flags,” on page 65 lists TapeAlert messages that are
supported by the drive and that may aid during problem determination.
v Appendix B,“Specifications,”onpage69listsproductspecifications.
Related Publications
v IBM®TotalStorage
information about the supported SCSI commands and protocol that govern the
behavior of the SCSI interface for the IBM 3580 LTO Ultrium Tape Drive Model
L33/L3H and the IBM TotalStorage Ultrium Tape Drive Model T800.
v IBM UltriumDeviceDriversProgrammingReference,GC35-0483suppliesinformation
to application developers who want to integrate their open-systems applications with
IBM-supported Ultrium hardware. The reference contains information about the
application programming interfaces (APIs) for each of the various supported
operating-system environments. Yo u can obtain this reference via File Transfer Protocol
(FTP) at ftp://ftp.software.ibm.com/storage/devdrv.
The IBM 400/800GB LTO 3 Tape Drive is a high-performance, high-capacity
data-storage device that is designed to backup and restore open systems
applications. The drive is the third-generation in the Ultrium series of products. It
is available as Model with a Small Computer Systems Interface (SCSI).
Figure 1. View of the drive with and without the bezel
The drive offers the following features:
v Ultra160 Low Voltage Differential (LVD) Small Computer Systems Interface
v 68-pin, D-shell connector (for SCSI signals, SCSI ID selection, and power
connection)
v Native storage capacity of 400 GB per cartridge (800 GB at 2:1 compression)
v Native data transfer rate of up to 80 MB per second
v Burst data transfer rate of 160 MB per second
v New dual stage 16 channel head activator for precision head alignment to help
support higher track density with improved data integrity and backwards
compatibility with previous LTO generations
v Graceful dynamicbrakingdesignedtomaintaintensionuntilthetapecomesto
a complete stop, to help prevent stretching or breaking the tape, and loose tape
wraps
v Larger internal buffer (the size has been doubled over the Ultrium 2 to 128 MB)
v New independent tape loader and threader motors designed to help with
cartridge insertion in the tape drive.
v Highly integratedelectronicsdesignedtoreducedthetotalnumberof
components in the drive, lower chip temperatures, and reduce power
requirements, helping to provide for a more reliable drive. The Generation 3
drive electronics also incorporate on-the-fly error correction of soft errors in the
memory arrays in data and control paths.
2 SCSI ID connector 5 Serial port
3 Power connector
4
1
2
Figure 3. Rear panel of the drive
Speed Matching and Channel Calibration
To improve system performance, the drive uses a technique called speed matching to
dynamically adjust its native (uncompressed) data rate to the slower data rate of a
server. With speed matching, the drive operates at one of five speeds when reading
or writing the Generation 3 cartridge format to achieve a native data rate of 40, 50,
60, 70, or 80 MB per second (MB/s). If the server’s net (compressed) data rate is
between two of the preceding native data rates, the drive calculates the
appropriate data rate at which to operate. Speed matching dramatically reduces
backhitch, the condition that occurs when a tape stops, reverses, and restarts
motion. A backhitch is usually the result of a mismatch between the data rates of
the server and the drive.
System performance is further optimized by a feature called channel calibration, in
which the drive automatically customizes each read/write data channel to
compensate for variations in such things as the recording channel’s transfer
function, the media, and characteristics of the drive head.
3
5
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Product Description 3
Sleep Mode
To conserve energy when circuit functions are not needed for drive operation, the
drive features a power-management function that causes the drive’s electronics to
enter a low-power mode known as sleep mode. To enter sleep mode, the drive must
be inactive for a minimum of 30 seconds (default value; this is programmable via
the mode pages); to exit, the drive must receive a command across the SCSI
interface, a command across the Library/Drive Interface (LDI or RS-422 interface),
or a load or unload request. When in sleep mode, the drive’s response time to
commands that do not require media motion increases by up to ten microseconds.
Commands that require media motion may be delayed an additional 100
milliseconds because the tape must be retensioned.
SCSI Attachment
To communicate with a server, the drive uses the Ultra160 LVD SCSI interface.
Physical Characteristics of the SCSI Interface
The drive contains a high-density, 68-pin, D-shell receptacle connector (HD68) for
attachment to the server. The HD68 connector includes the connectors for the SCSI
signal, the SCSI ID, and the drive’s power. The drive supports LVD SCSI cables
with HD68 connectors.
Speed
The Ultra160 LV D SCSI interface is compatible with older SCSI technology and is
capable of data transmission at 160 MB/s. Ultra160 SCSI uses the three
management features of the Ultra3 SCSI standard that specifically affect data
transfer rate:
Because the cables, connectors, and terminators are the same for the Ultra160 and
Ultra2 SCSI interfaces, devices with those interfaces can be mixed on the same bus
and each device can operate at its fully rated speed.
4 IBM400/800GBLTO3 Tape Drive User’s Guide
Installing the Drive
Attention:
To avoid static electricity damage when handling the drive, use the following
precautions:
v Limit yourmovement.Movementcancausestaticelectricitytobuild
around you.
v Always handle the drive carefully. Never touch exposed circuitry.
v Prevent others from touching the drive.
v Before unpacking and installing the drive into an enclosure, touch its
static-protective packaging to an unpainted metal surface on the enclosure
for at least two seconds. This reduces static electricity in the packaging and
your body.
v When possible,removethedrivefromitsstatic-protectivepackagingand
install it directly into an enclosure without setting it down. When this is
not possible, place the drive’s packaging on a smooth, level surface and
place the drive on the packaging.
v Do notplacethedriveonthecoveroftheenclosureoronanyothermetal
Before starting this installation, read these instructions and compare them to
the drive installation instructions for your enclosure.
Installation Overview
__1.“UnpacktheDrive”
__2.“PowerOfftheServer/Enclosure”onpage6
__3.“SettheSCSIID”onpage7
__4.“MounttheDriveintotheServer/Enclosure”onpage8
__5.“ConnectandTest Power to the Drive” on page 9
__6.“ConnecttheInternalSCSICable”onpage9
__7.“RunDriveDiagnostics”onpage9
__8.“InstallDeviceDrivers”onpage10
__9.“ConnecttheEnclosure’sExternalSCSIInterfacetotheServer”onpage10
Unpack the Drive
Unpack the drive and store the packaging for future moves or shipping.
Acclimation time is required if the temperature of the drive when unpacked
is different than the temperature of its operating environment (measured at
the front of the bezel near the air intake area as shown in Figure 4). The
recommended acclimation time is four hours after the drive has been
unpacked or one hour after any condensation that you can see has
evaporated, whichever is greater. When acclimating the drive, apply the
following measures:
v If thedriveiscolderthanitsoperatingenvironmentandtheaircontains
sufficient humidity, condensation may occur in the drive and damage it.
When the drive has warmed to the operating temperature range (greater
than 10°C or 50°F) and no danger of condensation is present (the air is
dry), warm the drive more quickly by powering it on for 30 minutes. Use a
diagnostic tape to test the drive before inserting a tape that contains data.
v If thedriveishotterthanitsoperatingenvironment,thetapecanstickto
the drive head. When the drive has cooled to the operating temperature
range (less than 40°C or 104°F), cool the drive more quickly by applying
airflow for 30 minutes. Power-on the drive and use a diagnostic tape to test
it before inserting a tape that contains data.
If you are uncertain about whether the temperature of the drive is within the
recommended operating range or the humidity is sufficient to cause
condensation, acclimate the drive for the full four hours.
Air Intake
Area
Figure 4. Temperature of the drive is taken near the air intake area
a82ru003
Power Off the Server/Enclosure
__1.Power-offtheenclosure (or the server that provides power to the drive)
__2.Disconnectthepowercord from both the electrical outlet and the host.
6 IBM400/800GBLTO3 Tape Drive User’s Guide
Set the SCSI ID
Setting the SCSI ID with Jumpers
The SCSI ID can be set in one of two ways:
v By placing jumpers on the SCSI ID connector
v By using a SCSI ID switch that is connected to the SCSI ID connector
The SCSI ID can be set on the drive by installing 2 mm jumpers on the drive’s
SCSI ID connector (see 2 in Figure 3). Your drive may come set to a default SCSI
configuration, with jumpers already installed. Yo u can change the SCSI ID by
rearranging, adding, or removing jumpers.
To set the SCSI ID:
__1.LocatetheSCSIIDconnector(2inFigure 3).
__2.BeforeattachingtheSCSIbuscabletotheserver, determine the SCSI ID.
Make sure that the ID is not being used by another device.
jumpers on the connector pins as shown (use a pair of needle-nose pliers to
connect the jumpers to the pins that are shaded).
Note: If yousettheSCSIIDto15,thedrivewillnotnecessarilybesetto
that ID; instead, the drive will expect to receive the SCSI ID through a
command over its LDI interface.
Figure 5. SCSI ID settings on the SCSI ID connector
Setting the SCSI ID with a SCSI ID Switch
If your enclosure uses a SCSI ID switch (rather than jumpers), connect the switch
to the drive’s SCSI ID connector 2in Figure 3 . If any jumpers are preinstalled, be
sure to remove them before connecting the switch. The SCSI ID switch must be
compatible with the drive’s SCSI ID connector and must make an electrical
connection between the same pins as the jumpers to achieve the same
corresponding SCSI ID.
Supplying TERMPOWER (SCSI Drive Only)
To supply TERMPOWER to the bus, locate one of the five jumpers shipped with
the drive and place it on the SCSI ID connector as shown in the following figure.
Place the jumper on the pins that are shaded.
Installing the Drive 7
A67E0049
Attention
SCSI termination must be provided externally to the drive.
drive faces the tape load compartment of the enclosure.
__3.InserttwoM3screws into the mounting holes 2 of the two side brackets
located on the left and right sides of the chassis.
Attention
When inserted into the drive, the length of the mounting screws must not
exceed 3.5 mm (0.14 in.) inside the chassis. If the length exceeds this
measurement, the drive may become damaged.
1
2
< 3.5 mm (0.14 in.)
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Figure 6. Mounting holes on drive. Theholesarelocatedonbothsidesofthedrive.The
__4.Connectthepowercord to the host and to the electrical outlet.
__5.ReviewthelocationoftheSingle-characterDisplay(SCD)andtheStatus
Light in “Single-character Display (SCD)” on page 11 and “Status Light” on
page 11 (if your drive does not have a bezel, note that the bulb of the Status
Light is recessed and the light is not visible until lit). To ensure that the
drive is receiving power, watch for the following while turning on the
power to the host:
v The SCDpresentsaseriesofrandomcharacters,thenbecomesblank(not
lit).
Attention
If the SCD does not come on, the drive may not be getting power.
v The StatusLightbrieflybecomessolidamber,thenbecomessolidgreen.
__6.Power-offthehost.
__7.Disconnectthepowercord from both the host and the electrical outlet.
Connect the Internal SCSI Cable
Connect the enclosure’s internal SCSI cable to the SCSI connector on the drive (see
1 in Figure3).
Run Drive Diagnostics
__1.Replacethecoveronthehost.
__2.Connectthepowercord to both the host and the electrical outlet.
__3.Power-onthehost.
__4.Runoneormore of the following drive diagnostics:
v “Function Code 1: Run Drive Diagnostics” on page 16
v “Function Code 6: Run SCSI Wrap Test” on page 20
v “Function Code 7: Run RS-422 Wrap Test” on page 20
server (for instructions, refer to the IBM Ultrium Device Drivers Installation andUser’sGuide).
If you want to power a device on or off while it is connected to the same SCSI bus
as the drive, you can do so if, during the power-on cycle, you quiesce all devices
(including the drive) on the bus.
10 IBM400/800GBLTO3 Tape Drive User’s Guide
Operating the Drive
Operating the drive involves using the following front panel items:
v Single-character Display (SCD)
v SCD Dot
v Status Light
v Unload Button
Single-character Display (SCD)
The SCD (see3 in Figure 2) presents a single-character code for:
v Error conditionsandinformationalmessages:
“Error Codes and Messages” on page 45 lists the codes for error conditions and
informational messages. If multiple errors occur, the code with the highest
priority (represented by the lowest number) displays first. When the error is
corrected, the code with the next highest priority displays, and so on until no
errors remain.
v Diagnostic ormaintenancefunctions(whileinmaintenancemodeonly):
“Diagnostic and Maintenance Functions” on page 15 lists the single-character
codes that represent diagnostic or maintenance functions. To initiate a function
the unit must be in maintenance mode.
SCDisblankduringnormaloperation.
The
SCD Dot
If a drive dump is present while the drive is in maintenance mode, a single red dot
illuminates in the lower right corner of the SCD (
“Function Code 5: Copy Drive Dump” on page 19.
The SCD Dot turns off when you obtain the dump (by using an FMR tape, a SCSI
command, or a library command).
Status Light
The Status Light (1 in Figure 2) is a light-emitting diode (LED) that provides
information about the state of the drive. The light can be green or amber, and
(when lit) solid or flashing. The table below lists the conditions of the Status Light
and Single-character Display (SCD) and provides an explanation of what each
condition means.
Table 1. Meaning of Status Light and Single-character Display (SCD)
If the
Status Light
is...
Off Off The drive has no power or is powered off.
Green Off The drive is powered on and in an idle state.
Flashing
Green
and the
SCD is...
Off The drive is reading from the tape, writing to the tape, rewinding the tape, locating data
on the tape, loading the tape, or unloading the tape.
Table 1. Meaning of Status Light and Single-character Display (SCD) (continued)
If the
Status Light
is...
Flashing
Green
and the
SCD is...
Meaning
Off The drive contains a cartridge during the power-on cycle. In this case, the drive
completes POST and slowly rewinds the tape (the process may take up to ten minutes).
The light stops blinking and becomes solid when the drive completes the recovery and is
ready for a read or write operation. To eject the cartridge, press the unload button.
Amber Displaying
Error Code
The drive is displaying error code(s) from the error code log on the SCD. For more
information, see “Function Code A: Clear Error Code Log” on page 22“ and “Error Codes
and Messages” on page 45.
Amber Red
The drive is powering on, resetting, or in maintenance mode.
numbers,
letters, or
segments
Amber Flashing
0
Amber Flashing
The drive is exiting from maintenance mode. For more information, see “Function Code
0: Exit Maintenance Mode” on page 16“.
The drive is executing the selected function while in maintenance mode.
selected
function
Flashing
Amber once
Displaying
error code
An error occurred and the drive or media may require service, or it may require cleaning.
Note the code on the SCD, then go to Table 9 to determine the action that is required.
per second
Flashing
Amber once
per second
Flashing
Amber
twice per
second
Displaying
C
Displaying
Function
Code
8
The drive needs cleaning.
1
The drive is updating firmware.
8
The SCD will display a
if using an FMR cartridge. The SCD will be off if using the SCSI interface. For more
information, see ““Updating Firmware” on page 26.
or Off
Flashing
Amber
Off The drive detected an error and is performing a firmware recovery. It will reset
automatically.
twice per
second
Flashing
Amber
twice per
Flashing
C
The drive is requesting a cartridge to be loaded.
second
Flashing
Off There is a drive dump in flash memory.
Amber
twice per
second
1
Power should not be removed from the drive until the microcode update is complete. The drive indicates that the
update is complete by resetting and performing POST.
Unload Button
The Unload Button (2in Figure 2 in “Front Panel of the Drive” on page 2)
performs the following functions:
12 IBM400/800GBLTO3 Tape Drive User’s Guide
Table 2. Functions that the Unload Button performs
Unload Button Function How to Initiate the Function
Rewind the tape into the
cartridge and eject the
cartridge from the drive
Press the Unload Button once. The Status Light flashes green while the drive is
rewinding and unloading.
Note: During arewindandejectoperation,thedrivedoesnotacceptSCSIcommands
from the server.
Place the drive in
maintenance mode
Ensure that the drive is unloaded. Then, within two seconds, press the Unload Button
three times. The drive is in maintenance mode when the Status Light becomes solid
amber and
0
appears in the SCD.
Note: While inmaintenancemode,thedrivedoesnotacceptSCSIinterface
commands.
Scroll through the
maintenance functions
While in maintenance mode, press the Unload Button once per second to increment
the display characters by one. When you reach the character of the diagnostic or
maintenance function that you want (see “Diagnostic and Maintenance Functions” on
page 15), press and hold the Unload Button for three seconds.
Exit maintenance mode Press the Unload Button once per second until
0
displays. Then press and hold the Unload Button for three seconds. Maintenance
mode is exited when the Status Light becomes solid green and the SCD becomes
blank.
Force a drive dump (part of
the maintenance mode)
Attention: If thedrivedetectsapermanenterroranddisplaysanerrorcode,it
automatically forces a drive dump (also known as a save of the firmware trace). If
you force a drive dump, the existing dump will be overwritten and data will be lost.
After you force a drive dump, do not turn off the power to the drive or you may lose
the dump data.
Choose one of the following procedures:
v If thedriveisinmaintenancemode(StatusLightissolidamber),referto“Function
Code 4: Force a Drive Dump” on page 18.
v If thedriveisinoperatingmode(StatusLightissolidorflashinggreen),pressand