Quantum LTO-2 manual Windows Operating System, Red Hat Linux

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Tape Drive Recognized during System Boot but not by Operating System or Application

Chapter 7 Troubleshooting Guide

Troubleshooting Suggestions

6If these suggestions do not help, the tape drive may be bad and Technical Support should be contacted.

Desktop tape drive:

1Power down system.

2Power cycle desktop tape drive.

3Be sure there are no SCSI ID conflict between the tape drive and other SCSI devices.

4Be sure you are using a proper SCSI cable and proper termination.

5Check the SCSI cable for bent pins.

6Try to use SCSI cable from other SCSI controller bus chain if possible.

7If these suggestions do not help, the tape drive may be bad and Technical Support should be contacted.

Windows Operating System

When the tape drive is installed in a Windows operating system, Windows displays a message on the screen if it does not have a driver in place for the tape drive.

If the tape drive will be used by an ISV application, you can click on the Cancel button to remove the message. When the ISV backup software application is running, the application invokes its drivers to run the tape drive. However, if you use a native Windows operating system backup utility, you must install the proper tape driver for the tape drive.

Red Hat Linux

The tape driver for Red Hat Linux is called “st”. This driver is automatically installed when Red Hat Linux is installed on your system. When Red Hat Linux boots, the operating system recognizes the tape drive and installs the tape drive as a device in the /dev directory. If this is the first tape device in the /dev directory, the tape drive is known as /dev/ st0 or /dev/nst0.

There are various ways to view the log files to see whether Linux recognizes the tape drive. One method is to open a terminal window and issue the following command from the root directory: dmesg grep SCSI

LTO-2 Half-Height Tape Drive User’s Guide

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Contents 72 Copyright Statement Contents Chapter Operation Safety Compliance EMC Compliance Injected Noise ReliabilityMean Time to Replace Chapter Troubleshooting Guide Figures Figures Viii Tables Tables Audience Purpose Document Organization PrefaceNotational ConventionsTech Tip Related SCSI-2 SpecificationDocuments ContactsSend faxes for the Customer Support Department to Customer SupportSend e-mail for the Customer Support Department to Visit our web site1Introduction Features 2Installation and Quick Start Quick Start Guide Internal LTO-2 Half-Height TapeDrive Quick Start Desktop LTO-2 Internal Tape Drive Guidelines and Cautions Unpacking and InspectionInstalling an Internal LTO-2 Half-Height Tape Drive Drive Installation InstructionsScsi ID Jumper PinsScsi ID=8 Open Shunted Default Terminator PowerJumpers Mounting Horizontally or vertically see figureWithin 5 degrees of horizontal Internal LTO Half-Height Tape Drive Mounting Dimensions Rear View Internal LTO-2 Half-Height Tape Drive Checking the Scsi Termination Connecting aSerial Cable for Tape LibrariesInstalling the LTO Driver Connecting a PowerPin Numbers Description CableInstalling a Desktop LTO-2 Half-Height Tape Drive Desktop LTO-2 Half-Height Tape Drive CordLTO-2 Half-Height Tape Drive User’s Guide 3Operation Generic Front Panel Display Understanding the Front Panel DisplayEOT Blink CodesLoading a Cartridge Unloading a Cartridge Using LTO CartridgesWrite-protecting a CartridgeCartridge Care MaintenanceRetensioning the Tape Drive MaintenanceOperation Drive Maintenance Operation Drive Maintenance Track Layout 4TheoryShows the layout of data on an LTO tape Recording Method Data BufferData Integrity C1 ECC Data Compression FaultsServo-tracking Tracking is re-establishedData Compression Considerations Compression Intelligent DataPage 5Specifications Internal Scsi Drive Specification Without Bezel With Bezel Physical SpecificationsInternal LTO-2 Half-Height Tape Drive Dimensions Power Specifications Specification +12 VDC + 5VDCIdle Power Watts RMS Standby Power Typical Operating Power Specification LTO-2 Drive Performance SpecificationsSpecification Value Environmental Requirements Specification Operational Non-operationalReliability Injected NoiseAt any frequency between 45 Hz and 20 MHz Mean Time Between Failures Specification DescriptionMean Time to LTO Cartridge SpecificationsReplace Environmental ConsiderationsRegulatory Compliance Cartridge MemoryReliability Country Regulatory Organization Compliant to EMC Compliance Country Regulatory Organization Compliant to Disposal of Electrical and Electronic Equipment 6UNIX Settings Word About Scsi Controllers Configuring for the DEC/Compaq Unix EnvironmentParameters Save the file. Then run the following commandTargets Finding CurrentTypes ControllersConfiguring Device FileSt.conf Smit Set the Block size to Enter Smit at the Tape Drive menu by typing smit tapeUsing the command Configuring for SCO Open ServerThis command produces output similar to Current tape drives can be found using the commandConfiguring the LTO-2 Half-Height Tape Drive with mkdev Finding Existing Scsi Controllers Devices Configuring for LinuxTo find existing Scsi devices execute the command You may see output similar toYou should see output similar to Configuring for SGI Irix Scsi controllers and devices use the commandOutput of the command will be similar to the following Configuring for HP-UX ConfigurationHardware/Driver Unix Settings Configuring for HP-UX Installation Best Practices 7Troubleshooting GuideClicking on Computer Management Device Manager Troubleshooting Suggestions Troubleshooting Guide Troubleshooting Suggestions Red Hat Linux Windows Operating SystemTape will not Load into Tape Drive Problems with Tape Drive and CartridgeTape will not Eject from the Drive LTO-2 Half-Height Tape Drive User’s Guide Problems During Backup/Restore Operations Emergency Reset and Emergency Cartridge EjectPreviously Written Data on the Tape will be Destroyed If either of the following messages appears Tape is Write Protected Miscellaneous TapeAlert MessagesLTO-2 Half-Height Tape Drive User’s Guide Slow Backups LTO-2 Half-Height Tape Drive User’s Guide Index Index Scsi ID Tape drive