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

Chapter 7

Troubleshooting Guide

This chapter contains best practices for getting the most out of your

LTO-2 Half-Height Tape Drive. This chapter also contains

troubleshooting information you can use to identify and resolve tape

drive problems in the unlikely even you encounter a problem with your

tape drive.
Topics covered in this chapter are:
•

Installation Best Practices

•

Troubleshooting Suggestions

Installation Best Practices

Follow SCSI Best
Practices

When installing an LTO-2 Half-Height Tape Drive, follow SCSI best

practices to ensure trouble-free installation and operation.

SCSI Host Bus
Adapters (HBA)

We strongly recommend that you attach the LTO-2 Half-Height Tape

Drive to SCSI controllers that support the SCSI Ultra3 LVD interface and

160 MBytes SCSI transfer rate only.

Summary of Contents for ValueLoader LTO-2

Page 1: ...72 DOI HLJKW 7DSH ULYH 72 8VHU V XLGH 8VHU V XLGH 8VHU V XLGH 8VHU V XLGH 8VHU V XLGH 8VHU V XLGH...

Page 2: ...this publication from time to time without notice COPYRIGHT STATEMENT Copyright 2005 by Quantum Corporation All rights reserved Your right to copy this manual is limited by copyright law Making copies...

Page 3: ...lf Height Tape Drive Quick Start 4 Desktop LTO 2 Half Height Tape Drive Quick Start 5 Unpacking and Inspection 6 Internal Tape Drive Guidelines and Cautions 6 Drive Installation Instructions 7 Install...

Page 4: ...nstalling the LTO Driver 17 Registering Your Tape Drive 18 Chapter 3 Operation 19 Understanding the Front Panel Display 20 Blink Codes 21 Using LTO Cartridges 22 Loading a Cartridge 22 Unloading a Car...

Page 5: ...Word About SCSI Controllers 50 Configuring for the DEC Compaq UNIX Environment 50 Finding Existing SCSI Controllers and Devices 50 Configuring Digital UNIX Version 4 0 and later Compaq Tru64 UNIX 5 x...

Page 6: ...pter 7 Troubleshooting Guide 63 Installation Best Practices 63 Follow SCSI Best Practices 63 SCSI Host Bus Adapters HBA 63 Adding the Tape Drive 64 Troubleshooting Suggestions 65 Computer will not Boo...

Page 7: ...ting Dimensions 12 Figure 5 Rear View of the Internal LTO 2 Half Height Tape Drive 13 Figure 6 Two SCSI Termination Examples for the Internal LTO 2 Half Height Tape Drive 14 Figure 7 SCSI Termination...

Page 8: ...Figures viii LTO 2 Half Height Tape Drive User s Guide...

Page 9: ...erface Connector Pin Assignments 15 Table 3 LTO 2 Tape Drive Blink Codes 21 Table 4 Physical Specifications 36 Table 5 Voltage and Current 38 Table 6 Power Dissipation 38 Table 7 Drive Performance Spe...

Page 10: ...Tables x LTO 2 Half Height Tape Drive User s Guide...

Page 11: ...his document provides information about the Quantum LTO 2 Half Height Tape Drive including Installing the drive Basic drive operations Maintenance Specifications Troubleshooting Document Organization...

Page 12: ...ntains detailed drive and cartridge specifications as well as a summary of regulatory approvals and WEEE Compliance statement Chapter 6 UNIX Settings describes the settings for UNIX systems Chapter 7...

Page 13: ...l Engineering Documents 15 Inverness Way East Englewood CO 80112 800 854 7179 or 303 397 2740 Contacts Quantum company contacts are listed below Quantum Corporate Headquarters 0 To order documentation...

Page 14: ...1 7 3839 0988 Europe Middle East Africa International Code 44 0 1256 848748 Send faxes for the Customer Support Department to North South America 949 725 2176 Asia Pacific Rim International Code 61 7...

Page 15: ...city is maximized using intelligent data compression The drive has a native capacity of 200 Gbytes 400 Gbytes assuming 2 1 data compression The LTO 2 Half Height Tape Drive as shown in figure 1 below...

Page 16: ...s performance and capacity by analyzing compressibility prior to recording Cartridge memory enables fast loading of cartridges and stores pertinent information about the media 32 Mbyte data buffer for...

Page 17: ...lains how to install the internal and desktop LTO 2 Half Height Tape Drives Topics covered in this chapter are Quick Start Guide Unpacking and Inspection Internal Tape Drive Guidelines and Cautions In...

Page 18: ...y SCSI ID 6 Terminator Power Disabled See Configuring the Internal Tape Drive on page 7 3 Turn off your computer remove its covers and power cable and select a mounting bay for the drive See Mounting...

Page 19: ...drive package and check for damaged items See Unpacking and Inspection 2 Review the drive s default settings and change them if necessary SCSI ID 6 SeeSetting the SCSI ID on page 16 3 Connect a SCSI i...

Page 20: ...to handling and installing internal tape drives Keep them in mind as you install the drive Handle the drive by the sides rather than by the top cover to reduce the risk of dropping the drive or damagi...

Page 21: ...Half Height Tape Drive Installing a Desktop LTO 2 Half Height Tape Drive on page 16 Installing an Internal LTO 2 Half Height Tape Drive 2 Installing an internal LTO 2 Half Height Tape Drive involves...

Page 22: ...efault Setting SCSI ID 6 Each SCSI device on the bus must have its own unique SCSI ID The internal tape drive is shipped with a default SCSI ID of 6 If another SCSI device in the SCSI chain is using t...

Page 23: ...SCSI ID 0 SCSI ID 1 SCSI ID 2 SCSI ID 3 SCSI ID 4 SCSI ID 5 SCSI ID 6 SCSI ID 7 SCSI ID 8 SCSI ID 9 SCSI ID 10 SCSI ID 11 SCSI ID 12 SCSI ID 13 SCSI ID 14 SCSI ID 15 Term power Drive Configuration Jum...

Page 24: ...en Open 1 Shunted Open Open Open 2 Open Shunted Open Open 3 Shunted Shunted Open Open 4 Open Open Shunted Open 5 Shunted Open Shunted Open 6 default Open Shunted Shunted Open 7 Shunted Shunted Shunted...

Page 25: ...ould be within 5 degrees of horizontal If you mount the drive horizontally the base of the drive must be within 15 degrees of horizontal and the drive must be right side up Figure 3 Acceptable Mountin...

Page 26: ...2 Half Height Tape Drive User s Guide Figure 4 Internal LTO 2 Half Height Tape Drive Mounting Dimensions INCLUDING CONNECTORS THIS HOLE M3 0 x 2 5 10 0 4X M3 0 X 5 0 0 5 47 4 52 9 79 2 2X M3 0 NEARSI...

Page 27: ...this connector 1 Turn off all power to the drive and the computer 2 Attach the SCSI interface cable to the 68 pin SCSI interface connector on the back of the drive see figure 5 Figure 5 Rear View of t...

Page 28: ...if a jumper is placed on the termination power jumper pins see Terminator Power on page 10 Figure 6 Two SCSI Termination Examples for the Internal LTO 2 Half Height Tape Drive Connecting a Serial Cabl...

Page 29: ...rive with the Microsoft native backup applet on Windows Server 2003 Windows XP or Microsoft Windows 2000 operating system install the appropriate LTO driver See the Resource CD This driver is not nece...

Page 30: ...back of the drive to change the drive s SCSI ID or assign a unique SCSI ID to the other SCSI device If you change the SCSI ID on the tape drive turn off the tape drive before changing the SCSI ID The...

Page 31: ...top LTO 2 Half Height Tape Drive Installing the LTO Driver 2 If you intend to use your drive with either the Microsoft Windows Server 2003 Windows XP or Microsoft Windows 2000 operating system install...

Page 32: ...ering Your Tape Drive 2 After you install the desktop tape drive be sure to register it Registering your drive ensures that you will receive the latest information about your drive as well as other pr...

Page 33: ...ser s Guide 19 Chapter 3 3Operation This chapter describes how to operate the LTO 2 Half Height Tape Drive Topics covered in this chapter are Understanding the Front Panel Display Blink Codes Using LT...

Page 34: ...ape Drive front panel display Figure 8 Generic Front Panel Display All drives have four LEDs on the front panel The LED colors and functions are as follows Power LED green Activity LED green Error LED...

Page 35: ...ng Request ON Hardware error Fast Positioning loading unloading rewinding spacing or locating Slow Tape Active writing reading or verifying Slow Manual intervention required ON Power On Self Test POST...

Page 36: ...ither Use a library or host command to unload the tape or Push the load unload button on the front of the drive Write protecting a Cartridge 3 Ultrium cartridges have a sliding write protect switch ne...

Page 37: ...re it in its protective case Do not expose cartridges to dirt dust or moisture Do not touch the tape media within a cartridge Do not use data cartridges outside the specified operating conditions 10o...

Page 38: ...s and bulk erasers Avoid dropping the cartridges This can damage components inside the cartridge possibly rendering the tape unusable If a tape is dropped it is advisable to open the cartridge door an...

Page 39: ...bel for future reference Each time the drive is cleaned the tape advances to a new unused section of media After approximately 50 cleanings all of the media will be used up and you should discard the...

Page 40: ...Chapter 3 Operation Drive Maintenance 26 LTO 2 Half Height Tape Drive User s Guide...

Page 41: ...covered in this chapter are Track Layout Recording Method Data Buffer Data Integrity Data Compression Track Layout 4 With the LTO 2 Half Height Tape Drive there are 512 data tracks on the LTO tape num...

Page 42: ...group recorded in the physical forward or physical reverse direction The wraps are recorded in a serpentine fashion starting in data band 0 The tape contains 64 track groups 32 written in the forward...

Page 43: ...essible data being transferred from SCSI at 160 Mbytes sec Data Integrity 4 The mechanical and electrical design of the drives ensures that drive performance does not degrade over a drive s operating...

Page 44: ...odeword pair s Valid bit is set Otherwise a pointer to the invalid Codeword Pair is passed to the C1 ECC correction engine If the C1 ECC correction engine can correct the error then the corrected byte...

Page 45: ...le word or at the binary level where the repetitions are in bits or bytes Although most data is unique and random the binary level data exhibits patterns of various sizes that repeat with varying degr...

Page 46: ...uncompressed data to the amount of compressed data It is obtained by dividing the size of the uncompressed data by the size of the compressed data The speed with which data is compressed and decompre...

Page 47: ...data compression utilizes two compression schemes Scheme 1 is a LZ1 based compression scheme using a history buffer to achieve data compression Scheme 2 is a pass through compression scheme designed t...

Page 48: ...Chapter 4 Theory Data Compression 34 LTO 2 Half Height Tape Drive User s Guide...

Page 49: ...for the LTO 2 Half Height Tape Drive The topics covered in this chapter are Physical Specifications Power Specifications Drive Performance Specifications Environmental Requirements Reliability Mean Ti...

Page 50: ...Table 4 Physical Specifications Figure 11 shows the dimensions of the internal LTO 2 half height drive Specification Internal SCSI Drive without Bezel Internal SCSI Drive with Bezel Height 1 6 inches...

Page 51: ...e Drive User s Guide 37 Figure 11 Internal LTO 2 Half Height Tape Drive Dimensions 226 5 OVERALL LENGTH INCLUDING CONNECTORS THIS HOLE M3 0 x 2 5 10 0 0 5 47 4 52 9 79 2 2X M3 0 NEARSIDE 2X M3 0 FARSI...

Page 52: ...cation 12 VDC 5VDC DC Voltage Tolerance 1 12 00 or 10 5 00 or 5 Non operating max voltage 14 Volts peak 7 Volts peak Idle current 1 0 13 amps RMS 1 4 amps RMS Standby current max 2 0 45 amps RMS 1 4 a...

Page 53: ...ed and tape threaded drive ready for transfer typical drive standby current power 3 Average drive current power measured during Read Write mode at 4 53 m s on a typical drive 4 Maximum drive current m...

Page 54: ...Es per mm Flux density 3 660 flux transitions per mm Track density 3 tracks per mm Error recovery Read after write Reed Solomon ECC 2 levels Recording unrecoverable errors 1 in 1017 data bits Recordin...

Page 55: ...rage data access time 609 m tape from BOW 68 seconds Maximum data access time 609 m tape from BOW 136 seconds Average rewind time 609 m tape 76 seconds Tape speed Up to 3 48 meters per second Specific...

Page 56: ...reliability and data integrity Table 9 summarizes the reliability specifications Altitude max 10 000 feet MSL at 25 C 40 000 feet power off Shock 1 2 sine wave 10 Gs peak 11 msec 25 Gs peak 11 msec Vi...

Page 57: ...0 000 hours with the unit operated at full load and 25 C Specification Description Non recoverable error rate 1 in 1017 bits Error recovery and control Error correction code techniques C1 and C2 ECC R...

Page 58: ...arrange the return LTO Cartridge Specifications 5 Environmental Considerations 5 Table 10 lists the basic environmental tolerances for LTO Ultrium cartridges Table 10 Environmental Tolerances If duri...

Page 59: ...idge use After 5 000 load unload cycles replace the cartridge to ensure data integrity See chapter 3 Operation for additional cartridge information and illustrations Regulatory Compliance 5 These driv...

Page 60: ...rotechnical Commission on Electrical Equipment IECEE for Mutual Recognition of Test Certificates for Electrical Equipment CB Scheme CB Scheme per IEC 60950 1 with details and exceptions for each membe...

Page 61: ...tralia and New Zealand Standards Australia Spectrum Management C Tick AS NZS 3548 same as CISPR 22 Japan Voluntary Control Council for Interface VCCI This is a voluntary compliance standard the drives...

Page 62: ...Equipment 5 This symbol on the product or on its packaging indicates that this product should not be disposed of with your other waste Instead it should be handed over to a designated collection point...

Page 63: ...2 Half Height Tape Drive The topics covered in this chapter are A Word About SCSI Controllers Configuring for the DEC Compaq UNIX Environment Configuring for the Sun Environment Solaris 2 4 2 5 2 6 7...

Page 64: ...he types of SCSI controllers that Quantum recommends in order of least preferred to most preferred top to bottom Table 11 SCSI Controllers For definitions of the terms used above please refer to SCSI...

Page 65: ...MD_ExtReserveRelease supported BlockSize 0 PwrMgmt_capable 0 DENSITY DensityNumber 0 2 3 4 5 6 7 DensityCode default CompressionCode 0x0 Buffered 0x1 DENSITY DensityNumber 1 DensityCode default Compre...

Page 66: ...ent SCSI Controllers and Targets 6 To properly attach SCSI devices to hosts it is necessary to ensure that each target device has a unique SCSI address The commands modinfo and dmesg can be used to fi...

Page 67: ...conf in the directory kernel drv tape config list CERTANCEULTRIUM 2 Seagate LTO 2 Certance_LTO2 The value 0x1d639 equates to the way that the LTO 2 Half Height Tape Drive is configured to operate in...

Page 68: ...st driver to turn on data compression when writing data to tape use the c option For example tar cf dev rmt 0c causes the tape drive to compress the data before writing the data to tape Configuring fo...

Page 69: ...ive performance and functionality Set the Connection Address with the Drives Target and Lun always use Lun 0 In the list the Target is the first number and the Lun is the second For example if the dri...

Page 70: ...mand grep tape usr adm hwconfig Note We suggest using the AIX commands backup and restore when transferring data to and from the LTO 2 Half Height Tape Drive These commands transfer data more quickly...

Page 71: ...llow the instructions below to add an LTO 2 Half Height Tape Drive 1 From the menu choose Configure a SCSI or Enhanced IDE tape drive 2 From the next menu choose Install a SCSI tape drive 3 When promp...

Page 72: ...applicable to the LTO 2 Half Height Tape Drive execute the command man tape for the specifics on how the tape command works The following tape commands are not available for use with the LTO 2 Half H...

Page 73: ...all the proper SCSI and tape device drivers If you executed the cat command above you have ensured that the SCSI driver for your controller is installed To view currently loaded modules execute the ls...

Page 74: ...ive is present on SCSI controller 1 at SCSI ID address 6 Available SCSI IDs are 0 2 3 5 6 8 15 on controller 0 1 5 and 8 15 on controller 1 this controller supports Wide Ultra SCSI Modifying the IRIX...

Page 75: ...ontrollers and devices use the command can ioscan f This command lists all the system devices and their device names Attaching the LTO 2 Half Height Tape Drive 6 Choose a SCSI address that does not co...

Page 76: ...that has not already been used You can also choose a unique device name such as cnb to more easily remember which device name will enable data compression during write Refer to the man pages for mksf...

Page 77: ...counter a problem with your tape drive Topics covered in this chapter are Installation Best Practices Troubleshooting Suggestions Installation Best Practices 7 Follow SCSI Best Practices 7 When instal...

Page 78: ...d record your current system configuration For example in Windows 2000 you may find information on any currently installed SCSI HBA by Double clicking on Administrative Tools in the Control Panel Clic...

Page 79: ...does not have burnt components Reseat the SCSI HBA in a different PCI slot and reboot the computer If the system still does not boot contact Technical Support Computer Boots but Does not Recognize the...

Page 80: ...ower LED 3 If the Power LED is not illuminated use an AC power cord from a known working device If the Power LED is illuminated the problem was with the cable Otherwise the tape drive may be bad and T...

Page 81: ...s 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 messag...

Page 82: ...scsi0 Problems with Tape Drive and Cartridge 7 Tape will not Load into Tape Drive 1 Verify that the tape drive s Power Led is illuminated and that all other LEDs are off If the Power LED is not illum...

Page 83: ...you are inserting a data tape the tape drive may be bad Contact Technical Support Tape will not Eject from the Drive 7 1 Be sure the tape drive is powered on If the Power LED is not illuminated check...

Page 84: ...tion LED is flashing If there is a hardware or firmware error or the Manual Intervention LED is flashing and the Drive LED is blinking contact Technical Support If there is a hardware or firmware erro...

Page 85: ...ve do not eject the cartridge from the drive you may need to remove the cartridge manually see Problems During Backup Restore Operations Problems During Backup Restore Operations 7 Backup Failures 7 A...

Page 86: ...backup fails try to isolate the tape media vs tape drive Use diagnostic software to perform a write read test of 4GB of data The current data on the tape WILL BE OVERWRITTEN AND ALL PREVIOUSLY WRITTEN...

Page 87: ...the backup 2 If the TapeAlert message or backup log shows The memory in the tape cartridge has failed which reduces performance Do not use the cartridge for further backup operations a Cartridge Memo...

Page 88: ...eject and the LEDs show POST Failure Hardware or Firmware Error or Manual Intervention Required the drive may be bad Contact Technical Support 2 If you have a problem with inserting a cleaning cartrid...

Page 89: ...w Voltage Differential LVD SCSI controller capable of a minimum of 80 MB s and MUST not share the same SCSI bus as another active SCSI device such as hard drives 1 Is the tape drive attached to an LVD...

Page 90: ...cond data transfer The resulting calculation shows the tape drive performing at an acceptable rate 3 If you believe that the write read transfer is slow even after using the diagnostic software write...

Page 91: ...unloading 22 write protecting 22 73 Cautions internal drives 6 Checking SCSI termination desktop drives 17 internal drives 14 17 Cleaning a tape drive 24 Computer boots but does not recognize tape dri...

Page 92: ...tridge eject 71 Emergency reset 71 Environmental requirements 41 Error correction code 29 External drives quick start 5 F Features 2 Front panel display 20 G Guidelines internal drives 6 H HP UX 11 0...

Page 93: ...29 Registering tape drive 15 18 Regulatory compliance 45 Reliability 42 Reset emergency 71 S SCO Open Server 5 0 x Unix settings 56 SCSI cable connection desktop drives 16 internal drives 13 SCSI con...

Page 94: ...ternal drives 10 Track layout 27 Troubleshooting 65 backup restore problems 71 Computer boots but does not recognize tape drive 65 slow backups 75 tape drive not recognized by operating system or appl...

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