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Quantum Tape Drive LTO-3 manuel d'utilisation

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Tout d'abord, il contient la réponse sur la structure, les possibilités du dispositif Quantum Tape Drive LTO-3, l'utilisation de divers accessoires et une gamme d'informations pour profiter pleinement de toutes les fonctionnalités et commodités.

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Table des matières du manuel d’utilisation

  • Page 1

    % / 7 27 DSH'ULYH / 7 2 8VHU ¶ V*XLGH8VHU ¶ V*XLGH8VHU ¶ V*XLGH 8VHU ¶ V*XLGH 8VHU ¶ V*XLGH8VHU ¶ V*XLGH [...]

  • Page 2

    Quantum LTO-3 Tape Driv e User’s Guide, P/N 50002764 , B01 , July 2005 Made in USA. Quantum Corporation provides this publication “as is ” without warranty of any kind, either expre s s or implied, including but not limited to the implied warran ties of merchantability or fitness for a particular purpose. Quantum Corporation may revise this p[...]

  • Page 3

    LTO-3 Tape Drive User’ s Guide iii Content s Preface xi Chapter 1 Overview, Unpacking Instructions and Quic k Start 1 Overview .......... ...................... .................... ....................... .................... .............. 1 Drive Configurations..... ....................... .................... ...................... ..........[...]

  • Page 4

    Contents iv LTO-3 Tape Drive User’s Guide Connecting a SCSI Cable ................... ....................... ...................... .......... 14 Checking the SCSI Termination ................ ...................... ....................... . 15 Connecting a Serial Cable for Tape Libraries ............. .......................... . 16 Bus Composi[...]

  • Page 5

    Contents LTO-3 Tape Drive User’ s Guide v Data Compression......... ....................... ................... .................... ..................... 35 Data Compression Considerations.. ....................... .................... ............ 36 Intelligent Data Compression .......... ....................... ...................... ........[...]

  • Page 6

    Contents vi LTO-3 Tape Drive User’s Guide Finding Existing SCSI Controllers and De vices ................. .................. 59 Configuring th e LTO-3 Ta pe Drive with mkdev ................ .................. 60 Configuring for Linux.................... ...................... .................... ....................... . 61 Finding Existing SC[...]

  • Page 7

    LTO-3 Tape Drive User’ s Guide vii Figures Figure 1 Typical Internal and Deskto p Configurations ............. ............ 2 Figure 2 Internal LTO-3 Tape Drive Ju mper Settings................. ............ 9 Figure 3 Acceptable Mounting Orientations ....................... .................. 11 Figure 4 Internal LTO-3 Tape Drive Mounting Dimens[...]

  • Page 8

    Figures viii LTO-3 Tape Drive User’s Guide[...]

  • Page 9

    LTO-3 Tape Drive User’ s Guide ix T ables Table 1 ISCSI IDs and Jumper Settings for an Inte rnal LTO-3 Tape Drive ................. ....................... ................... ....................... ... 9 Table 2 Serial Interface Connector Pin Assignments (LTO-3) ........... 16 Table 3 ADT Bus Connections ............... .................... ...[...]

  • Page 10

    T ables x LTO-3 Tape Drive User’s Guide[...]

  • Page 11

    LTO-3 Tape Drive User’ s Guide xi Preface The LTO-3 Tape Drive is a high-perfo rmance 16-channel tape drive that complies with the LTO interchange s pecifications. The drive is su ited for mid-range to high-end servers, mainframe systems, and tape l i brary automation systems. Audience This document was written for users of the LTO-3 Tape Drive. [...]

  • Page 12

    Preface xii LTO-3 Tape Drive User’s Guide Document Organization This User’s Guide describes how to in stall, configure, and care for the LTO-3 desktop and internal tape dr ive s. Please read the appropriate chapters and appendixes carefully, and keep this Guide handy for future reference. • Chapter 1, Overview, Unpacking In stru ctions and Qu[...]

  • Page 13

    Preface LTO-3 Tape Drive User’ s Guide xiii Related Document s Refer to the appropriat e product ma nuals for information about your tape drive and car tridges. SCSI-2 S pec ification 0 The SCSI-2 communications specific ation is the propose d American National Standard for information syst ems, dated March 9, 1990. Copies may be obtained from: G[...]

  • Page 14

    Preface xiv LTO-3 Tape Drive User’s Guide T echnical Publications 0 To comment on existing documentation send e-mail to: doc-comments@quantum. com Quantum Home Page 0 Visit the Quantum home page at: www.quantum.com Customer Support 0 The Quantum Customer Support Department provides a 24-hour help desk that can be reached at: North/South America: [...]

  • Page 15

    LTO-3 Tape Drive User’ s Guide 1 Chapter 1 1 Overview , Unp acking Instructions and Quick S tart This chapter provides an overview of this product and a quick start guide. It also discusses unp acking and inspection consi derations. Topics covered in this chapter are: • Overview • Internal Tape Drive Guidelines and Cautions • Quick Start Gu[...]

  • Page 16

    Chapter 1 Ove rview , Unpacking Instructions and Quick S tart Overview 2 LTO-3 Tape Drive User’s Guide Drive Configurations 1 The LTO-3 Tape Drive has a 5¼-inch, full-height form factor, with automatic electromechanical cartridge so ft load. The drive is available as an internal and a desktop drive. • Internal LTO-3 Tape Drive fits in a 5¼-in[...]

  • Page 17

    Chapter 1 Overview , Unpa cking Instructions and Quick S t art Unpacking and Inspection LTO-3 Tape Drive User’ s Guide 3 • Intelligent data compression maximi zes performance and capacity by analyzing compressibilit y prior to recording. • Cartridge memory enables fast lo ading of cartridges and stores pertinent information about the media. ?[...]

  • Page 18

    Chapter 1 Ove rview , Unpacking Instructions and Quick S tart Quick S tart Guide 4 LTO-3 Tape Drive User’s Guide Quick S t art Guide 1 Use the following quick-start instructions t o get your tape drive up and running as quickly as possible. Internal L T O-3 T ape Drive Quick Star t 1 Use the following procedure to install the internal LTO-3 Tape [...]

  • Page 19

    Chapter 1 Overview , Unpa cking Instructions and Quick S t art Internal T ape Drive Guidelines and Cautions LTO-3 Tape Drive User’ s Guide 5 Desktop L TO-3 T ape Drive Quick Star t 1 Use the following procedure to install the desktop LTO-3 Tape Drive. Print the page and check eac h step as you complete it . If you need more information about a st[...]

  • Page 20

    Chapter 1 Ove rview , Unpacking Instructions and Quick S tart Internal T ape Drive Guideli nes and Cautions 6 LTO-3 Tape Drive User’s Guide • Before you remove the drive from the antistatic bag, touc h a metal or grounded surface to discharg e any static electricity build up from your body. • Always lay the drive either on top of the antistat[...]

  • Page 21

    LTO-3 Tape Drive User’ s Guide 7 Chapter 2 2 Inst allation This chapter explains how to install the internal and desktop LTO-3 Tape Drives. Topics covered in this chapter are: • Installing an Internal LTO-3 Tape Drive • Installing a Desktop LTO-3 Tape Drive Drive Inst allation Instructions 2 After unpacking and inspecting your shipping contai[...]

  • Page 22

    Chapter 2 Inst allation Installing an Internal L T O-3 T ape Drive 8 LTO-3 Tape Drive User’s Guide Inst alling an Internal L TO-3 T ape Drive 2 Installing an internal LTO-3 Tape Drive with an Ultra 160 SCSI LVD interface involves the fo llowing steps: 1 Configuring an LVD Drive 2 Mounting the Internal LTO-3 Tape Drive on page 11 3 Connecting a SC[...]

  • Page 23

    Chapter 2 Installation Installing an Internal L T O-3 T ape Drive LTO-3 Tape Drive User’ s Guide 9 and 7–8 to change the SCSI ID of the LTO-3 T ape Drive (see table 1 and table 2 ), or assign a unique SCSI ID to the other SCSI device. Figure 2 Internal L TO-3 T ape Drive Jumper Settings T able 1 ISCSI IDs and Jumper Settings for an Internal L T[...]

  • Page 24

    Chapter 2 Inst allation Installing an Internal L T O-3 T ape Drive 10 LTO-3 Tape Drive User’s Guide T erminator Power 2 By default, terminator power is disabled on the internal LTO-3 Tape Drive. To enable terminator power, place a jumper across pins 11 and 12. 2 Open Shunted Open Open 3 Shunted Shunted Open Open 4 Open Open Shunted Open 5 Shunted[...]

  • Page 25

    Chapter 2 Installation Installing an Internal L T O-3 T ape Drive LTO-3 Tape Drive User’ s Guide 11 Mounting t he Internal L T O-3 Ta p e D r i v e 2 You can mount the internal LTO-3 Tape Drive either horizontally or vertically, with the drive’s left s ide facing up (see figure 3 ). If you mount the drive: • Vertically the lef t side of the d[...]

  • Page 26

    Chapter 2 Inst allation Installing an Internal L T O-3 T ape Drive 12 LTO-3 Tape Drive User’s Guide Figure 4 Internal L TO-3 T ape Drive Mounting Dimensions Connector Det ail 2 Two connectors are spe cified, a fixed board connector and a free cable connector. ADI Fixed Board Connector 2 The fixed board connector (see figu re 5 ) is intended to b [...]

  • Page 27

    Chapter 2 Installation Installing an Internal L T O-3 T ape Drive LTO-3 Tape Drive User’ s Guide 13 connector in a removable medium or automation device is beyond the scope of this standard. Figure 5 ADI Fixed Board Connector ADI Free Cable Connector 2 The free cable connector is intended to mate with the fixed board connector (see figure 6 ).[...]

  • Page 28

    Chapter 2 Inst allation Installing an Internal L T O-3 T ape Drive 14 LTO-3 Tape Drive User’s Guide Figure 6 ADI Free Cable Connector When the ADI free cable connector is used on both ends of a cable, like- numbered pins shall be connected to gether, that is, pin 1 on end A is wired to pin 1 on end B, pin 2 on end A to pin 2 on end B, and so fort[...]

  • Page 29

    Chapter 2 Installation Installing an Internal L T O-3 T ape Drive LTO-3 Tape Drive User’ s Guide 15 Figure 7 Rear View of the Intern al L T O-3 T ape drive Checking the SCSI T ermination 2 The Internal LTO-3 Tape Drive does not provide SC SI termination. You must place a SCSI bus terminator or a SC SI device with termination enabled at the end of[...]

  • Page 30

    Chapter 2 Inst allation Installing an Internal L T O-3 T ape Drive 16 LTO-3 Tape Drive User’s Guide Figure 8 T wo SCSI T ermination Examples for the Internal L TO-3 T ape Drive Connecting a Serial Cab le for T ap e Li brar ie s 2 The internal LTO-3 Tape Drive includes an RS-422 serial interface for tape libraries. This connector is an in-line shr[...]

  • Page 31

    Chapter 2 Installation Installing an Internal L T O-3 T ape Drive LTO-3 Tape Drive User’ s Guide 17 Bus Composition 2 Table 3 defines the connections that make up the ADT bus. With the exception of Sense a and Sense d this standard defines the be havior of these connections only when an initiator port asserts Sense a and the target port asserts S[...]

  • Page 32

    Chapter 2 Inst allation Installing a Desktop L TO-3 T ape Dri ve 18 LTO-3 Tape Drive User’s Guide Connecting a Power Cable 2 Attach a four-pin power cable to the power co nnector on the back of the drive. Figure 7 shows the location of the power connector. The recommended 4-pin power connector for internal drives is an AMP 1-48024-0 housing with [...]

  • Page 33

    Chapter 2 Installation Installing a Desktop L TO-3 T ape Drive LTO-3 Tape Drive User’ s Guide 19 Setting the SCSI ID 2 Each SCSI device on the bus must have its own unique SCSI ID. The desktop tape drive is shipped with a default SCSI ID of 6. Avoid setting drive ID to 7. If another SCSI device in the SCSI chain is already us ing this ID, either [...]

  • Page 34

    Chapter 2 Inst allation Installing a Desktop L TO-3 T ape Dri ve 20 LTO-3 Tape Drive User’s Guide connection. This means you can use either connector to attach the drive to a host computer or to another SCSI device. 1 Turn off all power to the drive and the computer. 2 Attach the SCSI i nterface cable to one of the 68-pin SCSI interface connector[...]

  • Page 35

    Chapter 2 Installation Installing a Desktop L TO-3 T ape Drive LTO-3 Tape Drive User’ s Guide 21 Connecting a Power Cord 2 Attach the power cord securely to the power connector on the back of the desktop LTO-3 Tape Drive (see figure 9 ). Inst alling the L TO Driver 2 If you intend to use your drive with either the Microsoft Windows Server 2003, W[...]

  • Page 36

    Chapter 2 Inst allation Installing a Desktop L TO-3 T ape Dri ve 22 LTO-3 Tape Drive User’s Guide[...]

  • Page 37

    LTO-3 Tape Drive User’ s Guide 23 Chapter 3 3 Operation This chapter describes how to operate the LTO-3 Tape Drive. Topics covered in this chapter are: • Understanding the Fron t Panel Display • Blink Codes • Using LTO Cartridg es • Drive Maintenance • Parking the Drive for Shipping[...]

  • Page 38

    Chapter 3 Ope ra tion Understanding the Front Pa nel Display 24 LTO-3 Tape Drive User’s Guide Underst anding the Front Panel Display 3 Figure 11 shows a view of the LTO-3 front-panel display. Figure 1 1 Generic Front Panel Display The LTO-3 Tape Drive has four LEDs on the front panel. The LED colors and functions are summarized below. • Power L[...]

  • Page 39

    Chapter 3 Operation Blink Codes LTO-3 Tape Drive User’ s Guide 25 Blink Codes 3 Table 4 summarizes the blink codes for the L TO-3 Tape Drive. T able 4 L TO-3 T ap e Drive Blink Codes Drive Condit ion Activity LED (Green) Error LED (Orange) S tatus LED (Amber) Cleaning Request ON Hardware error Fast Positioning – loading, unloading, rewinding, s[...]

  • Page 40

    Chapter 3 Ope ra tion Using L T O Cartri dges 26 LTO-3 Tape Drive User’s Guide Using L T O Cartridges 3 Loading a Cartridge 3 To load an Ultrium cartridge into the LTO-3 Tape Dr ive: • Place the cartridge in the slot and gently push until the cartridge is sensed and automatically retracted into the drive. • If the cartridge is already in the [...]

  • Page 41

    Chapter 3 Operation Using L T O Cartridges LTO-3 Tape Drive User’ s Guide 27 Write -protecting a Cartridge 3 Ultrium cartridge s have a sliding write-protect swit ch near the back right corner of the cartridge, see figure 12 . • If you slide the switch to the position farthest from the corner of the cartridge, data can be re ad from the cartrid[...]

  • Page 42

    Chapter 3 Ope ra tion Drive Maintenance 28 LTO-3 Tape Drive User’s Guide Cartridge Care and Maintenance 3 To protec t the data on your Ultrium data cartridges, observe the following precautions: • Always remove the cartridge from the drive when not in use and store it in its protective case. • Do not expose cartridges to dirt, dust, or moistu[...]

  • Page 43

    Chapter 3 Operation Drive Maintena nce LTO-3 Tape Drive User’ s Guide 29 Cleaning the T ape Drive 3 Excessive tape debris or other materi al may accumulate on the tape heads if the drive is used with non-approved media or operated in a hot, dusty environment. In this case, the drive may experience excessive errors while reading or writing, and th[...]

  • Page 44

    Chapter 3 Ope ra tion Parking the Drive for Shipp ing 30 LTO-3 Tape Drive User’s Guide Parking the Drive for Shipping 3 Quantum recommends that you “park” the LTO-3 Tape Drive before shipping it or placing it in an envi ronme nt where they may be subject to physical shock. Parking the drive moves the tape mechanism to the configuration that i[...]

  • Page 45

    LTO-3 Tape Drive User’ s Guide 31 Chapter 4 4 Theory This chapter describes operational theories used in the LTO-3 Tape Drive. The topics covered in this chapter are: • Track Layout • Recording Method • Data Buffer • Data Integrit y • Data Compression T r ack Layout 4 With the LTO-3 Tape Drive, there are 704 data tracks on the LTO tape,[...]

  • Page 46

    Chapter 4 The o ry T rack Layout 32 LTO-3 Tape Drive User’s Guide A track group is a set of tracks that is recorded concur re ntly. The sets of 11 data tracks in a data band are da ta sub bands. There are 16 data sub bands per data band. The data tracks are accessed in a serpentine manner. A wrap is a track group recorded in the physical forward [...]

  • Page 47

    Chapter 4 Theory Recording Meth od LTO-3 Tape Drive User’ s Guide 33 Recording Method 4 The LTO-3 Tape Drive records data using write-equalized (0,13/11) Run Length Limited (RLL) cod e. RLL (0,13/11) Data bits are defined as follows: • ONE is represented by a flux transition at the center of a bit-cell. • ZERO is represented by no flux transi[...]

  • Page 48

    Chapter 4 The o ry Data Integrity 34 LTO-3 Tape Drive User’s Guide Error-correction Code (ECC) 4 The use of Cyclic Redundancy Chec king (CRC), two-le vel orthogonal Error Correction Coding (ECC) provides a ver y low probability of encountering a hard error. During the read process, ECC correction is performed on the fly without affecting tape str[...]

  • Page 49

    Chapter 4 Theory Data Compression LTO-3 Tape Drive User’ s Guide 35 3 Correction : Generating corrected data from syndromes. The correction depends on the number and types of errors involved: • For one known C1 codeword pair in error in a sub-data set (C2 codeword), the operation is performed by the ECC co-processor hardware. • For two or mor[...]

  • Page 50

    Chapter 4 The o ry Data Compression 36 LTO-3 Tape Drive User’s Guide symbols point back to the original da ta string, using f ewer characters to represent the strings. Because th ese smaller symbols are substituted for the longer strings of data, more data can be stored in the same physical space. Some important benefits result from data compress[...]

  • Page 51

    Chapter 4 Theory Data Compression LTO-3 Tape Drive User’ s Guide 37 The transfer rate de p ends on factors such as: • Compression ratio •D r i v e b u f f e r s i z e • Host computer input/output (I/O) speed • Effective disc speeds of the host computer • Record lengths that the host computer transmits Data compression algorithms can b e[...]

  • Page 52

    Chapter 4 The o ry Data Compression 38 LTO-3 Tape Drive User’s Guide Software data compression should neve r be used because the LTO-3 Tape Drive's built-in intelligent da ta compression is much more efficient than software data compression systems. The LTO-3 Tape Drive uses a deri vative of ALDC-2 l ossless data compression that includes ad[...]

  • Page 53

    LTO-3 Tape Drive User’ s Guide 39 Chapter 5 5 S pecifications This chapter provides technical spec ifications for the LTO-3 Tape Drive. The topics covered in this chapter are: • Physical Specifications • Power Specifications • Drive Performance Specifications • Environmental Requirements • Reliability • Mean Time Between Failures • [...]

  • Page 54

    Chapter 5 Specifications Physical S pecifications 40 LTO-3 Tape Drive User’s Guide Physical S pecifications 5 Table 5 lists the physical specifications of the LTO- 3 Tape Drive. T able 5 Physical S pecifications Specification Internal SCSI Drive without Bezel Internal SCSI Drive with Bezel Desktop SCSI Drive Height 3.25 inches (82.6 mm) max 3.31 [...]

  • Page 55

    Chapter 5 S pecifications Physical S pe cif ications LTO-3 Tape Drive User’ s Guide 41 Figure 14 shows the dimensions of the internal LTO-3 Tape Drive. Figure 14 Internal L TO-3 T ape Drive Dimensions 84.3 147.8 48.90 ± 0.60 From Upper Bez el Mounting T abs 48.90 ± 0.60 From Upper Bez el Mounting T abs Length of Drive without Bezel (Less connec[...]

  • Page 56

    Chapter 5 Specifications Power S pecifications 42 LTO-3 Tape Drive User’s Guide Power S pecifications 5 The desktop LTO-3 Tape Drive comes with a b uilt-in 90-260VAC (47-63 Hz) automatic switch ing power supply. Maximum voltage and power specificat ions for the int ernal LTO-3 Tape Drive is listed in the tables below. Specifications are the same [...]

  • Page 57

    Chapter 5 S pecifications Drive Performance S pecifications LTO-3 Tape Drive User’ s Guide 43 Drive Performance S pecifications 5 Table 8 lists the performance specifications for the LTO-3 Tape Drive. T able 8 Drive Performance S pecifications Spec ification V alue Capacity LTO Ultrium 3 (680 m) 400 Gbytes (native) Recording density 5,120 RLL-enc[...]

  • Page 58

    Chapter 5 Specifications Environmental Requirements 44 LTO-3 Tape Drive User’s Guide Environmenta l Requirement s 5 Table 9 lists the environmental specific ations for the LTO-3 Tape Drive. T able 9 Environmental Requirements Average rewind time (609-m tape) > 51 seconds Maximum rewind time (609-m tape) < 115 seconds Average data access tim[...]

  • Page 59

    Chapter 5 S pecifications Reliability LTO-3 Tape Drive User’ s Guide 45 Injected Noise 5 The internal drive operates without degradation of error rates with 100 mV of noise injected between the ch assis and 0 V at the power connector at any frequency between 45 Hz and 20 MHz. Reliability 5 The LTO-3 Tape Drive is designed for maximum reliabilit y[...]

  • Page 60

    Chapter 5 Specifications Mean T ime Between Fai lures 46 LTO-3 Tape Drive User’s Guide T able 10 Reliability Mean T ime Between Failures 5 The mean time between failures (MTB F) for the internal drive is specified at 250,000 hours minimum. This specification includes all power-on and operational time but excl udes maintenance periods. Operational[...]

  • Page 61

    Chapter 5 S pecifications L T O Cartridge S peci fi cations LTO-3 Tape Drive User’ s Guide 47 Mean Ti me to Replace 5 The mean time to replace (MTTR) is the average time required by a qualified service technician to diagnos e a defective drive and to install a replacement drive. The MTTR for LTO products is less than 0.5 hour (30 minutes). The Qu[...]

  • Page 62

    Chapter 5 Specifications Regulatory Compliance 48 LTO-3 Tape Drive User’s Guide Cartridge Memory 5 Each Ultrium cartridge ha s 4 Kbytes of nonvolatil e memory: 3 Kbytes are used to store tape-directory and hardwa re specific information. 1 Kbyte is available for application and OEM use. The cartridge memory is powered, read, and written to via a [...]

  • Page 63

    Chapter 5 S pecifications Regulatory Compliance LTO-3 Tape Drive User’ s Guide 49 * Member nations of the IECEE incl ude Austria, Australia, Belg ium, Canada, China (PR), Czech Republ ic, Denmark, Finland, F rance, Germany, Hungary, I ndia, Ireland, Israel, It aly, Japan, South Korea, Netherlands, Norway, Poland, Russia n Federation, Singapore, S[...]

  • Page 64

    Chapter 5 Specifications Regulatory Compliance 50 LTO-3 Tape Drive User’s Guide Electromagnetic Comp atibility (EMC) 5 Country Regulatory Organization Compliant to: United States Federal Communications Commission (FCC) Title 47: Code of Federal Regulations, Part 15, Subpart B, Class B: Digi tal Device (47CFR15B) Canada Industr y Canada Digital Ap[...]

  • Page 65

    Chapter 5 S pecifications Disposal of Electrical and Electronic Eq uipment LTO-3 Tape Drive User’ s Guide 51 You should also consider th e following s afety points: • Install the drive in an enclosure that limits the user’s access to live parts, gives adequate system stab ilit y and provides the necessary grounding for the drive. • Provide [...]

  • Page 66

    Chapter 5 Specifications Disposal of Electrical and Electronic Equipment 52 LTO-3 Tape Drive User’s Guide[...]

  • Page 67

    LTO-3 Tape Drive User’ s Guide 53 Chapter 6 6 UNIX Settings This chapter describes how to co nfigure various UNIX systems to recognize and obtain optimal performance from the LTO-3 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 E[...]

  • Page 68

    Chapter 6 UNIX Se ttings A Word About SCSI Controllers 54 LTO-3 Tape Drive User’s Guide A W ord About SCSI Controllers 6 The LTO-3 Tape Drive transfers data natively at 68 Mbyt es per second. It supports the SCSI Ultra 160 specification and can transfer data at burst rates of up to 320 Mbytes per second. To achieve maximum drive performance, it i[...]

  • Page 69

    Chapter 6 UNIX Settings Configuring for the Sun Environment (Sol aris 2.4, 2.5, 2. 6, 7, 8, and 9) LTO-3 Tape Drive User’ s Guide 55 DENSITY : # DensityNumber=1 DensityCode=defau lt CompressionCode=0x1 Buffered=0x1 Save the file. Then run the following command: ddr_config-c ddr_config takes the default inp ut file, ddr .dbase , and builds a new d[...]

  • Page 70

    Chapter 6 UNIX Se ttings Configuring for the Sun Environment (Sol aris 2.4, 2.5, 2.6 , 7, 8, and 9) 56 LTO-3 Tape Drive User’s Guide For example, the command .dmesg | egrep .t arget. | sort | uniq. can find all SCSI controllers and SCSI targets. The output may look similar to: sd32 at ithps0: target2 lun0 sd34 at ithps0: target4 lun0 st21 at ithp[...]

  • Page 71

    Chapter 6 UNIX Settings Configuring for the Sun Environment (Sol aris 2.4, 2.5, 2. 6, 7, 8, and 9) LTO-3 Tape Drive User’ s Guide 57 The value 0x1d639 equates to the way that the LTO-3 Tape Drive is configured to operate in the Solaris environment. This value enables the LTO-3 Tape Drive to: Support variable length record s (variable length block[...]

  • Page 72

    Chapter 6 UNIX Se ttings Configuri ng for the IBM AIX Enviro nment (AIX V ersion 4.1.x and later) 58 LTO-3 Tape Drive User’s Guide Configuring for the IBM AIX Environment (AIX V ersion 4.1.x and later) 6 Finding Existing SCSI Controllers and Devices 6 Enter the following command: lsdev–Cs scsi. This shows all the SCSI target IDs known to the sy[...]

  • Page 73

    Chapter 6 UNIX Settings Configuring for SCO Ope n Server 5.0.x LTO-3 Tape Drive User’ s Guide 59 Set RESERVE/RELE ASE support to yes . Set BLOCK SIZE for variab le length support (Num.) to 0 . Set Density 1 to 0 . 6 Leave the Set dela y . . . and Set timeout. . . lines at the default val ue. 7 Click OK and the drive will be installe d in the syst[...]

  • Page 74

    Chapter 6 UNIX Se ttings Configuring for SCO Open Server 5.0.x 60 LTO-3 Tape Drive User’s Guide This command produces output similar to: %tape type=S ha=0 id=6 lun=0 bus=0 ht=alad The information above shows that an Ad aptec SCSI controller is installed ( alad ) and a SCS I tape drive ( type=S ) is installed as target id 6. SCSI ID #7 is almost a[...]

  • Page 75

    Chapter 6 UNIX Settings Configuring fo r Linux LTO-3 Tape Drive User’ s Guide 61 13 When the process takes you back to the two Main Menu screens, press q . 14 When asked to create a new kern el, enter yes . 15 When asked if you want the new ke rnel to boot by default press y . 16 When asked if you want the kernel environment to be rebuilt press y[...]

  • Page 76

    Chapter 6 UNIX Se ttings Configuring for Lin ux 62 LTO-3 Tape Drive User’s Guide You may see output similar to: (scsi0)<Adaptec AHA-294XX Ultra16 0 SCSI host adapter> found at PCI 0/16/0 To find existing SCSI devices ex ecute the command: cat /proc/scsi/scsi You may see output similar to: Host: scsi0 Channel: 0 Id:6 Lun:00 V endor: CERT ANC[...]

  • Page 77

    Chapter 6 UNIX Settings Configuring for SGI Irix LTO-3 Tape Drive User’ s Guide 63 Configuring for SGI Irix 6 Finding Current SCSI Controllers and T arget s 6 To properly attach SCSI devices to hosts it is necessary to ensure that each target device has a unique SCSI address. The command hinv can be used to find all attached SCSI controllers and [...]

  • Page 78

    Chapter 6 UNIX Se ttings Configuring for HP-UX 1 1.0 64 LTO-3 Tape Drive User’s Guide M TCAN_COMPRESS, 40, 5*60, 10*60, 10*60, 3*36 00, 512, 256 *512, tpsc_default_dens_coun t, tpsc_defalt_hwg_dens_names, tpsc_default_alias_dens_na mes, {0}, 0, 0, 0, 0, (u_char*) 0}, After modifying the conf iguration file, recompile the kernel with the autoconfi[...]

  • Page 79

    Chapter 6 UNIX Settings Configuring for HP-UX 1 1.0 LTO-3 Tape Drive User’ s Guide 65 • x is the data under H/WPath from the ios can . • y is the data under I from the ioscan . • z is the tape device identifier number. You can execute an ls command for the /d ev/rmt directory to choose an identifier number that has not already been used. Yo[...]

  • Page 80

    Chapter 6 UNIX Se ttings Configuring for HP-UX 1 1.0 66 LTO-3 Tape Drive User’s Guide[...]

  • Page 81

    LTO-3 Tape Drive User’ s Guide 67 Chapter 7 7 T roubleshooting Guide This chapter contains best practice s for getting the most out of your LTO-3 tape drive. This chapter also contains troubleshooting information you can use to identify and resolve ta pe drive problems in the unli kely even you encounter a problem with your tape drive. Topics cov[...]

  • Page 82

    Chapter 7 T roublesh ooting Guide Installation Best Practices 68 LTO-3 Tape Drive User’s Guide Do Not: 7 • Attach the tape drives to a non-LVD SCSI controller, as this will degrade the performance of the tape drive and the performance of your backups. • Attach non-LVD SCSI devices on the same bus cable, as this will degrade the performance of[...]

  • Page 83

    Chapter 7 T rouble shootin g Guide T roubleshoo ting Suggesti ons LTO-3 Tape Drive User’ s Guide 69 Ensure that the SCSI cable is of hi gh qualit y and conforms to Ultra 160 SCSI specifications . A lesser quality ca ble or a cable that does not conform to the Ultra 160 SCSI specification may cause intermittent write/read errors, SCSI timeouts, an[...]

  • Page 84

    Chapter 7 T roublesh ooting Guide T roublesho oting Suggestions 70 LTO-3 Tape Drive User’s Guide • If the tape drive is not recognized during the SCSI controller scan, check the Power LED to make sure the t ape drive is receiving power. If the Power LED is not illuminated, check the power connections to the tape drive. Internal t a pe drive: 7 [...]

  • Page 85

    Chapter 7 T rouble shootin g Guide T roubleshoo ting Suggesti ons LTO-3 Tape Drive User’ s Guide 71 Internal t a pe drive: 7 1 Power down the system. 2 Be sure there are no SCSI ID conflicts between the tape drive and other SCSI devices. 3 Be sure you are using a proper SCSI cable and proper termination. 4 Check the SCSI cable for bent pins. 5 Tr[...]

  • Page 86

    Chapter 7 T roublesh ooting Guide T roublesho oting Suggestions 72 LTO-3 Tape Drive User’s Guide Red Hat Linux 7 The tape driver fo r Red Hat Linux is called “ st ”. This driver is automatically inst alled when Red Hat Linux is i nstalled on your system. When Red Hat Linux boots, the operating system recognizes the tape drive and installs the[...]

  • Page 87

    Chapter 7 T rouble shootin g Guide T roubleshoo ting Suggesti ons LTO-3 Tape Drive User’ s Guide 73 2 If the Power LED is illuminated but othe r LEDs are on or flashing. check to see if other LED activity is normal or abnormal (see ta ble 4 on page 25). 3 If the Power-On-Self-T est Failure LEDs are on, contact Customer Support. 4 If other LEDs ar[...]

  • Page 88

    Chapter 7 T roublesh ooting Guide T roublesho oting Suggestions 74 LTO-3 Tape Drive User’s Guide T ape wi ll not Eject from the Drive 7 1 Be sure the tape drive is powered on. If the Power LED is not illuminated, check w hether power is being applied to the s ystem and/or the desktop tape dri ve if the tape drive is a desktop uni t. Follow troubl[...]

  • Page 89

    Chapter 7 T rouble shootin g Guide T roubleshoo ting Suggesti ons LTO-3 Tape Drive User’ s Guide 75 2 If the Hardware or Firmware Error or Manual Intervention LED is flashing after the tape drive is rebooted, the tape may be stuck. Contact Customer Support. Emergency Reset and Emergency Cartridge Eject 7 In the unlikely event the LTO-3 Ta pe Driv[...]

  • Page 90

    Chapter 7 T roublesh ooting Guide T roublesho oting Suggestions 76 LTO-3 Tape Drive User’s Guide A media error occurred during write or read o p eration on the tape drive. Review the troubleshooting procedures to ensure that the proper SCSI cabling and terminat ion practices are being followed. Restart the backup if any changes are made to the SC[...]

  • Page 91

    Chapter 7 T rouble shootin g Guide T roubleshoo ting Suggesti ons LTO-3 Tape Drive User’ s Guide 77 BE DESTROYED . If the tape drive passes the diagnostic write/read test, perform backup again. If the tape drive fails the diagnostic, the drive may be bad. Contact Customer Support. T ape is Write Protected 7 The following troubleshooting step s st[...]

  • Page 92

    Chapter 7 T roublesh ooting Guide T roublesho oting Suggestions 78 LTO-3 Tape Drive User’s Guide Or The tape drive has a hardware fault: 1 1.T urn the tape drive off and then on again. 2 2.Restart the operation. 3 3.If the problem persists, call the tape drive supplier helpline. Check the tape drive users manual for device specific instructions o[...]

  • Page 93

    Chapter 7 T rouble shootin g Guide T roubleshoo ting Suggesti ons LTO-3 Tape Drive User’ s Guide 79 This message means the tape drive does not recognize the cleaning tape as being of a valid type. Yo u may have purchased a cleaning tape that is not supported by the tape drive. Purchase a supported cleaning tape. 3 If the tape drive issues a messa[...]

  • Page 94

    Chapter 7 T roublesh ooting Guide T roublesho oting Suggestions 80 LTO-3 Tape Drive User’s Guide The method of performing the backup s can also be a factor in “slow” backups. Data sent to the tape drive ove r a network connection and delays in data transfer over a ne twork connection can cause backups to slow down. 1 Perform write/read test w[...]

  • Page 95

    LTO-3 Tape Drive User’ s Guide 81 Index A AIX 4.1 settings 58 B Backup/restore problems 75 Best practices 67 blink codes 25 C Cartridges care and maintenance 28 ejecting 75 loading 26 specifications 47 troubleshooting 72 unloading 26 write-protecting 27 , 77 Checking SCSI termination desktop drive 20 internal drive 15 Cleaning a tape drive 29 Com[...]

  • Page 96

    Index 82 LTO-3 Tape Drive User’s Guide intellig ent 37 Data integrity 33 error-correction code 34 servo-tracking faults 35 DEC/Comp aq Unix setting s 54 Desktop drive checking SCSI termination 20 connecting a power cable 21 connecting a SCSI cable 19 installation instructions 18 installing the LTO drive r 21 quick start 5 SCSI ID 19 Drive overvie[...]

  • Page 97

    Index LTO-3 Tape Drive User’ s Guide 83 connecting a power cable 18 connecting a SCSI cable 14 connecting a serial cable 16 guidelines and cautions 5 installation instru ctions 8 installing the LTO drive r 18 mountin g 11 quick start 4 SCSI ID 8 terminator power 10 L Layout of track 31 Linux setti ngs 61 Loading a cartridge 26 LTO-3 features 2 M [...]

  • Page 98

    Index 84 LTO-3 Tape Drive User’s Guide Slow backups 79 Specific ations drive performance 43 electromagnetic compatibility 50 environmental re quirements 44 injected noise 45 LTO cartridge 47 mean time be tween failures 46 physical 40 power 42 regulatory compliance 48 reliability 45 Sun (Solaris 2.4, 2.5, 2.6, 7, 8, 9) Unix settings 55 T Tape driv[...]