Diagnostics and Troubleshooting. Quantum DLT VS80, DLT VS160
The Quantum DLT VS80 and DLT VS160 Tape Autoloaders are SCSI-2 LVD data storage devices that incorporate a DLT VS80 or DLT VS160 tape drive and eight tape slots. The ValueLoader automatically imports, exports, and loads DLTtape™ IV data cartridges for high-speed backups and data transfers. It allows you to perform a variety of tasks from the front panel, including loading and unloading cartridges, writing protection, and cleaning. It also allows you to manage your inventory of cartridges, and configure the ValueLoader for various settings.
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Chapter 4
Diagnostics and
Troubleshooting
Section Overview
This section contains some general suggestions to aid you in solving problems. It also includes information on error codes and diagnostics.
•
•
Removing Stuck Cartridges on page 58
•
ValueLoader Error Codes on page 62
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Quantum ATL ValueLoader DLT VS80/DLT VS160 Tape Autoloader User Manual 49
Diagnostics and Troubleshooting
Troubleshooting
Troubleshooting
Installation
Problems 4
Problems encountered during the installation of the ValueLoader are usually caused by improper SCSI bus configuration, application software configuration errors, or an incorrectly configured operating system. If the application software that you are using is not communicating with the ValueLoader after installation, check the following:
• SCSI ID: The ValueLoader uses one SCSI ID and two Logical
Unit Numbers (LUNs): one LUN for the tape drive (0) and one for the ValueLoader robotics (1). Depending on other devices attached to the same SCSI bus and their SCSI IDs, you may need to change the SCSI ID of the ValueLoader before you can use the ValueLoader. Select an unused SCSI ID. See the manuals for the other devices on the SCSI bus or your operating system to determine which SCSI IDs are currently in use. If the ValueLoader is attached to a narrow (50-pin) SCSI
bus, only SCSI IDs 0 through 7 are available. See Changing the
• SCSI Cabling: Verify that all SCSI cables are securely connected at both ends. Check the length and integrity of your SCSI cabling. The total length of all cables connected to a SCSI bus must not exceed 19 feet (6 meters) for a SCSI-1 SE bus, 10 feet (3 meters) for a Fast SCSI (Narrow or Wide) or an Ultra SCSI
(Narrow or Wide) SE bus, 40 feet (12 meters) for an LVD bus with multiple devices, or 82 feet (25 meters) for an LVD bus with a single device. The length of the internal SCSI cabling inside the ValueLoader is 1 foot (30 cm). This length must be included in any calculations of cable length. Try replacing suspect cables with known good cables.
• Termination: If the ValueLoader is the only SCSI device (other than the SCSI host adapter) on the selected SCSI bus, it must be terminated. Likewise, if the ValueLoader is physically the last
SCSI device on the SCSI bus, it must be terminated. Only the devices physically at the beginning and end of the SCSI bus
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50 Quantum ATL ValueLoader DLT VS80/DLT VS160 Tape Autoloader User Manual
Diagnostics and Troubleshooting
Troubleshooting should be terminated. Refer to the manuals supplied with the other devices on the SCSI bus for termination on enabling or disabling termination on those devices.
To terminate the ValueLoader, locate the terminator in the accessories package and press it firmly into the either of the two SCSI connectors on the rear panel of the ValueLoader.
Secure the terminator by tightening the finger-screws until snug. The supplied terminator is “dual mode” and will work on both Low-Voltage Differential (LVD) and Single Ended (SE)
SCSI buses. A green LED on the terminator indicates that the unit is attached to a SCSI bus running in LVD mode. A red
LED on the terminator indicates that the unit is attached to a
SCSI bus running in SE mode. If the LED is not on, check all
SCSI and power connections and confirm that the unit is attached to a valid SCSI bus.
• Compatibility: Ensure that the ValueLoader is compatible with the SCSI host adapter and backup application you plan to use.
For a list of compatible SCSI adapters and application software, check with your SCSI host adapter manufacturer, backup application vendor, or the Quantum support web site at www.quantum.com
.
• SCSI Host Adapter Installation: Verify that you have installed your SCSI host adapter correctly. Refer to the manual that came with your SCSI host adapter for installation and troubleshooting instructions. Pay particular attention to any steps describing the settings of various jumpers and/or switches on the host adapter, or on newer adapters, the setup application for the adapter. Make sure that the host adapter is properly seated in the motherboard slot and the operating system correctly detects the host adapter. Make sure that the proper device driver is installed for the SCSI host adapter.
• Backup Application Installation: Refer to the documentation included with your backup application for instructions on how to verify proper installation. Most backup software packages require an additional module to communicate with the
ValueLoader robotics.
Quantum ATL ValueLoader DLT VS80/DLT VS160 Tape Autoloader User Manual 51
Diagnostics and Troubleshooting
Troubleshooting
• Device Driver Installation: Make sure that the proper device driver, if applicable, is installed for the ValueLoader (see
Installing the Device Drivers on page 16). Also refer to
www.quantum.com
for more information.
Table 4
Troubleshooting
Problem
Power
ValueLoader does not power on.
Solution
No display messages appear.
• Check all power cord connections.
• Make sure the power switch on the front panel is in the ON position.
• Make sure there is power to the outlet. Try another working outlet.
• Replace the power cord.
• Contact your service representative.
• Make sure the power cord is connected.
• Make sure the power switch is on.
• Power cycle the ValueLoader.
• Download ValueLoader firmware.
• Contact your service representative.
Tape Movement
52 Quantum ATL ValueLoader DLT VS80/DLT VS160 Tape Autoloader User Manual
Diagnostics and Troubleshooting
Troubleshooting
Problem
Tape stuck in drive.
Tape stuck in storage slot.
Media
Cleaning or data cartridge incompatible with drive
Solution
• Power cycle the ValueLoader, allow it to complete initialization, which in rare cases can take as long as 10 minutes, then retry unloading the tape using the ValueLoader
Operator’s Panel controls.
• Allow the tape drive to complete all operations. This may take as long as 10 minutes if you reset or cycle power on the
ValueLoader while the cartridge is positioned at the physical end of the media.
• Make sure that the backup software is not reserving the slot or preventing the tape drive from ejecting the cartridge. The backup software needs to cancel the reservation and any hold it has on the tape drive. Temporarily disconnecting the
ValueLoader from the host server eliminates the host and its software as a problem source.
• Contact your service representative.
• See
Removing Stuck Cartridges on page 58.
• Make sure you are using cleaning and data cartridges that are compatible with the drive. The ValueLoader automatically unloads incompatible cartridges to their original slots.
Quantum ATL ValueLoader DLT VS80/DLT VS160 Tape Autoloader User Manual 53
Diagnostics and Troubleshooting
Troubleshooting
Problem
Cannot write to or read from a tape
Solution
• Make sure the cartridge is write enabled (move the writeprotect switch to the enabled position).
• Make sure that the cartridge is a DLTtape that has not been written using an incompatible format. The ValueLoader VS80 drive can read, but not write, a DLT4000 formatted tape. The
ValueLoader VS160 drive can read, but not write, DLTtape IV media.
• Make sure the cartridge has not been exposed to harsh environmental or electrical conditions and is not physically damaged in any way.
• Many backup applications do not read or write to cartridges that were created using a different backup application. In this case, you may have to perform an erase, format, or label operation on the cartridge.
• Make sure you understand any data protection or overwrite protection schemes that your backup application may be using, which could prevent you from writing to a given cartridge.
• Retry the operation with a different, known good tape.
• Clean the tape drive. See
Cleaning the Tape Drive on page 34
for instructions.
SCSI ID
Changed drive SCSI ID, but the host server does not recognize the new ID
•
•
• Make sure all SCSI devices on the same bus have unique ID numbers.
• If the SCSI bus is narrow (50-pin) only SCSI IDs 0 through 7 are available.
• Make sure that you cycle power on the ValueLoader after changing the SCSI ID.
• Reboot the host server.
54 Quantum ATL ValueLoader DLT VS80/DLT VS160 Tape Autoloader User Manual
Diagnostics and Troubleshooting
Troubleshooting
Problem Solution
ValueLoader Performance
The ValueLoader is not efficiently backing up data.
• Check the network bandwidth from the host computer. If you are backing up data over a network, consider comparing to a local-only backup.
• Make sure that the ValueLoader is on its own SCSI bus and not daisy-chained to another tape drive or to the hard drive being backed up.
• Clean the tape drive. See
Cleaning the Tape Drive on page 34
for instructions.
• Try a new cartridge. A marginal cartridge can cause performance problems due to bad spots on the tape requiring retries.
• Make sure that the data is being compressed.
• Check the size of the files. Small file size can impact performance.
• Confirm that the backup application is utilizing block sizes of at least 32 KB, preferably 64 KB. Refer to your application’s documentation for details.
Cleaning
Recurring cleaning message.
The Clean Drive LED is illuminated.
• Make sure you are using a Quantum compatible cleaning cartridge.
• Replace the existing cleaning cartridge with a new one.
• If the Media Attention LED is cleared using a cleaning cartridge and then immediately reappears after a particular data cartridge is reloaded, that data cartridge might be contaminated. If this occurs, check that the data cartridge can be read, back up data from the suspect cartridge to another cartridge, and then discard the suspect cartridge.
• Indicates that 250 tape motion hours have passed since you last cleaned the tape drive.
• Clean the tape drive. See
Cleaning the Tape Drive on page 34
for instructions.
Quantum ATL ValueLoader DLT VS80/DLT VS160 Tape Autoloader User Manual 55
Diagnostics and Troubleshooting
Troubleshooting
Problem
Cannot load the cleaning cartridge.
Solution
• Make sure you are using a Quantum compatible cleaning cartridge.
• Contact your service representative.
Media Compatibility
Media format invalid for drive type.
Media is labeled as write protected by the host server, but restore from tape successful.
Media is rejected by the tape drive. Restore from tape NOT successful.
• You attempted to load incompatible media into the tape drive.
Ensure your media and format is compatible with a DLT VS80 or DLT VS160 tape drive.
• Media with the DLT4000 format was loaded into the tape drive. The data is readable, but the media must be bulk erased before the tape drive can write to this cartridge.
• You attempted to load media with an invalid format (DLT7000 or DLT8000), an improperly degaussed cartridge, or an invalid cartridge type (DLTtapeIII or non-Quantum cleaning cartridge) or the tape drive’s read/write head is dirty. The tape drive rejects the cartridge in these cases. If the cartridge format or cartridge type is invalid, replace the cartridge. If the read/ write head is suspected as being dirty, clean the tape drive. If the format is invalid, or the tape is improperly degaussed, the media must be thoroughly degaussed before the DLT VS80 or
DLT VS160 tape drive can use this tape.
Media Attention LED Issues
Contamination by loose debris.
Contamination by head staining. (Caused by adhesion of chemicals that are present in tape media to the head surface.)
• Avoid contamination by ensuring that the ValueLoader is installed in a clean, contamination-free environment.
Cartridges should be stored vertically in their plastic cases.
Continue cleaning the tape drive as needed.
• One or two passes with the cleaning cartridge should resolve the Media Attention LED caused by normal head staining. If a cleaning cartridge is unsuccessful in resolving a cleaning light after three or more attempts, the cleaning cartridge may be contaminated, and should NOT be used in another drive.
56 Quantum ATL ValueLoader DLT VS80/DLT VS160 Tape Autoloader User Manual
Diagnostics and Troubleshooting
Troubleshooting
Problem Solution
Non-acclimated media.
• A cartridge should be acclimated for a minimum of 24 hours before being used, particularly if it has been stored at a substantially different temperature or level of humidity than the ValueLoader.
Wrong cleaning cartridge.
• Make sure you are using a Quantum compatible cleaning cartridge.
Bad/defective/ contaminated media.
• If the Media Attention LED is cleared using a cleaning cartridge and then immediately reappears each time a particular cartridge is reloaded, and you have confirmed that the suspect cartridge is not invalid (DLTtapeIII cartridge or non-Quantum cleaning cartridge), that cartridge should be suspected as being contaminated.
• If this occurs, export the cartridge, clean the tape drive again, and then load a known good cartridge. In some cases, a cartridge can be worn out, have bad calibration tracks, have been improperly degaussed, or have a bad tape directory recorded by another drive type such as DLT7000 or DLT8000.
• Any cartridge that is suspected of being defective or contaminated should NOT be reused in any drive. Cartridges that are suspected as being improperly degaussed or containing incompatible formats such as DLT7000 or DLT8000 must be thoroughly degaussed before use.
Expired cleaning cartridge.
• A cleaning cartridge is good for 20 uses.
Errors Displayed on the Front Panel
Quantum ATL ValueLoader DLT VS80/DLT VS160 Tape Autoloader User Manual 57
Diagnostics and Troubleshooting
Removing Stuck Cartridges
Problem
“!” in ValueLoader operator panel inventory display
There is an error code on the LCD display
Solution
• An exclamation point (!) displayed in the inventory indicates that the ValueLoader has identified a cartridge in the indicated slot that is either an invalid cartridge type (DLTtapeIII cartridge or non-DLT1 cleaning cartridge) or has had mediarelated error. These can be caused by faulty or improperly degaussed media, media that has been previously written in an invalid format such as DLT7000 or DLT8000, or dirty read/ write heads in the tape drive. The Media Attention LED is also illuminated in this case. See
more information. Exporting the indicated cartridge will clear the error condition. See
Exporting Cartridges on page 29. If
these symptoms occur on multiple known good cartridges, consider cleaning the tape drive. See
Cleaning the Tape Drive on page 34. If a particular cartridges causes these symptoms
repeatedly, that cartridge may be defective or invalid.
• Look up the error code, and try to resolve the failure, and power cycle.
Removing Stuck Cartridges
If the ValueLoader experiences a severe mechanical problem or if you need to remove cartridges because of the power failure or other circumstance in which the ValueLoader is unable to export the cartridges in the carousel, follow these steps:
Note: Contact Quantum Customer Support if a cartridge is stuck in the drive.
1 Move the power switch on the front panel to the OFF position.
You may need to use the tip of a pen or similar item to move the power switch.
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58 Quantum ATL ValueLoader DLT VS80/DLT VS160 Tape Autoloader User Manual
Figure 15 Removing
Mounting Brackets
(Left Side Shown)
Diagnostics and Troubleshooting
Removing Stuck Cartridges
2 Remove the power cable and SCSI cables from their connectors on the back panel of the ValueLoader.
Warning: To prevent injury, disconnect the power and SCSI cables before removing the ValueLoader cover and keep fingers away from the fan.
3
4
Remove the ValueLoader from its rack slot, if applicable, and place it on a table or other clear work surface.
Use a screwdriver to remove the front cover screws that secure the mounting brackets (if the ValueLoader is rackmounted) from both sides of the ValueLoader, as shown in
5
6
Remove the five screws on the back of the ValueLoader, and two additional screws, one on each side of the ValueLoader, to loosen the ValueLoader cover.
Remove the top cover by lifting it from the back and easing it out from under the front panel display cover.
Quantum ATL ValueLoader DLT VS80/DLT VS160 Tape Autoloader User Manual 59
Diagnostics and Troubleshooting
Removing Stuck Cartridges
7 Lift the cartridge carrier, with each cartridge you want to remove, straight up from the ValueLoader.
Note: To remove the carrier directly in front of the Import/
Export slot, gently rotate the carousel counterclockwise by moving the belt or carriers until the carrier is no longer in front of the Import/Export slot.
8 On each carrier, carefully pull the cartridge lock lever away from the carrier, allowing the cartridge to slide out of the carrier, as shown in
Figure 16 Pull
Cartridge Release
Lever
Cartridge carrier
Cartridge lock lever
60 Quantum ATL ValueLoader DLT VS80/DLT VS160 Tape Autoloader User Manual
Figure 17 Installing the Carrier
Diagnostics and Troubleshooting
Removing Stuck Cartridges
9 After removing the cartridges from the desired carriers, reinstall each carrier on the ValueLoader belt (
• Make sure that the rollers on the bottom of the carrier are aligned in the carrier tracks.
• Make sure that the belt post beneath each carrier is inserted into the proper ValueLoader belt loop.
Note: There are unused loops on the belt. The proper belt loops have an extra bump on the outside of the loop.
See
10
11
Ensure the carrier is properly installed on the belt by gently pressing on the top of the carrier and sliding it back and forth.
If it is properly attached to the belt, it should not move. If it moves, reinstall the carrier.
Replace the top cover of the ValueLoader and reinstall the cover screws and mounting brackets (if rackmounted).
Quantum ATL ValueLoader DLT VS80/DLT VS160 Tape Autoloader User Manual 61
Diagnostics and Troubleshooting
ValueLoader Error Codes
ValueLoader Error Codes
If an error occurs during operation of the ValueLoader, the
ValueLoader stops the current operation and displays an error code on the top line of the LCD screen. Unless otherwise noted in
table 5 , attempt to resolve the error by resetting or cycling power
on the ValueLoader and retrying the last operation. If the error persists, contact support personnel.
To view the error log, follow these steps:
1
2
3
4
From the Home screen or main menu, press the [+] or [–] button until “Information” appears on the top line of the LCD screen.
Press the [Enter] button to access the available options.
Press the [+] or [–] button until “View Event Log” appears on the LCD screen. The LCD screen also displays the quantity of errors and events stored in the error log.
Press the [Enter] button to access the most recently logged error message.
5
6
Press the [+] or [–] button to display each error in the log.
Press [Cancel] when done.
A description of each of the error codes is provided in the following table.
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Diagnostics and Troubleshooting
ValueLoader Error Codes
Table 5 Error Codes
Error Code
3 0 81
3 0 82
3 0 83
3 0 84
3 0 85
3 0 86
3 0 87
3 0 88
3 0 89
Description
Invalid Command Error.
Device Status Not Suitable To
Execute This Command.
Inventory Not Valid.
Source Empty.
Destination Full.
Import/Export Slot Access
Rejected.
Operation Timeout.
Communications Error
During Loop-back.
System Test Timeout.
Details
This error indicates that the ValueLoader received an undefined command or an invalid parameter with a command.
If the robotics are busy, some commands cannot be executed at the same time. This error indicates a probable violation. This is not an error condition, but it does result in busy being reported to the host for the requested SCSI command.
The cartridge inventory is not valid because of manual changes or previous fatal errors.
Update the inventory using the Re-inventory option in the Configuration menu. See
Creating an Inventory of Cartridges on page 36 or power
cycle.
There is no cartridge in the location from which a cartridge move was issued.
The location to which a cartridge move was issued already contains a cartridge.
User attempted to access the Import/Export slot, but media removal was prevented by the host.
A command did not complete in the required amount of time.
Cycle power on the ValueLoader and attempt the operation again. If the error recurs, contact
Quantum Technical Support.
There was a communication timeout between the drive and loader during the System Test.
Quantum ATL ValueLoader DLT VS80/DLT VS160 Tape Autoloader User Manual 63
Diagnostics and Troubleshooting
ValueLoader Error Codes
Error Code
3 0 8F
3 0 90
3 0 91
3 0 92
3 0 93
3 0 94
3 0 95
3 0 96
3 0 A0
3 0 A1
3 0 A2
Description
Recovered Loader Error.
Mechanical Initialization
Failure.
Inventory Scan Failure.
Preposition Failed.
Cartridge Load Error.
Cartridge Unload Error.
Import Error.
Export Error.
Carousel Motion Failure.
Cartridge Transport Position
Error.
Gripper Position Error.
Details
Loader error recovery successful. Your diagnostic tool can provide details of the original loader error.
The robotics were not able to move to the safe mechanical initialization position. Manual intervention is necessary.
Fatal robotic error occurred during the inventory scan.
Belt positioning error occurred during
‘Preposition’ command.
A failure occurred while trying to load a cartridge from a slot to the drive.
A failure occurred while trying to unload a cartridge from the drive to its slot.
An error occurred while trying to import a data cartridge to a carousel slot.
An error occurred while trying to export a data cartridge from its carousel slot. This can be caused by an empty slot that is expected to be full.
An error occurred during carousel movement
(position not found). Could be caused by a missing or misaligned cartridge carrier, an obstruction, or unexpected cartridge in either the carousel path or import/export slot.
The cartridge transport element is unable to reach its desired position. Failure occurred while trying to place a cartridge into or remove a cartridge from the drive or a slot.
Gripper unable to reach position.
64 Quantum ATL ValueLoader DLT VS80/DLT VS160 Tape Autoloader User Manual
Diagnostics and Troubleshooting
ValueLoader Error Codes
Error Code
3 0 A3
3 0 A4
3 0 A5
3 0 B0
3 0 B1
3 0 B2
3 0 B3
3 0 B4
3 0 B5
3 0 B6
Description
Cartridge Pick Error.
Import/Export Slot Position
Error.
Fan Error.
ROM Error.
RAM Error.
NVRAM Error.
Controller Timer Failure.
Loader to Drive
Communication IC Error.
Display Error.
Memory Error.
Details
An error occurred while trying to pull a cartridge from the drive or a carousel slot.
The Import/Export slot door was not in the requested position during device operation.
Can be caused by manually opening the door or a cartridge or other obstruction is blocking the door. Try removing the cartridge or obstruction, then power cycle or reset the
ValueLoader.
The ValueLoader processor detected a fan error.
Cycle power on the ValueLoader and attempt the operation again. If the error recurs, contact
Quantum Technical Support.
Cycle power on the ValueLoader and attempt the operation again. If the error recurs, contact
Quantum Technical Support.
Cycle power on the ValueLoader and attempt the operation again. If the error recurs, contact
Quantum Technical Support.
An unrecoverable failure has occurred in the controller timer circuit.
A failure in IC handling loader to drive communication.
Cycle power on the ValueLoader and attempt the operation again. If the error recurs, contact
Quantum Technical Support.
Cycle power on the ValueLoader and attempt the operation again. If the error recurs, contact
Quantum Technical Support.
Quantum ATL ValueLoader DLT VS80/DLT VS160 Tape Autoloader User Manual 65
Diagnostics and Troubleshooting
ValueLoader Error Codes
Error Code Description
3 0 B7 Timeout on ValueLoader
Command.
3 0 BC Drive Bug-checked.
3 0 BF Fatal Error.
Details
Cycle power on the ValueLoader and attempt the operation again. If the error recurs, contact
Quantum Technical Support.
Cycle power on the ValueLoader and attempt the operation again. If the error recurs, contact
Quantum Technical Support.
Cycle power on the ValueLoader and attempt the operation again. If the error recurs, contact
Quantum Technical Support.
66 Quantum ATL ValueLoader DLT VS80/DLT VS160 Tape Autoloader User Manual

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Key features
- Supports DLTtape IV cartridges
- Includes an 8-slot carousel
- Provides high-speed backup and data transfer
- Offers a variety of front-panel controls
- Allows for cartridge inventory management
- Provides ValueLoader configuration options