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Quantum LTO-3 Tape Drive 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 express or implied, including but not limited to the implied warranties of merchantability or fitness for a particular purpose. Quantum Corporation may revise this publication from time to time without notice. COPYRIGHT STATEMENT Copyright 2005 by Quantum Corporation. All rights reserved.
Contents Preface Chapter 1 xi Overview, Unpacking Instructions and Quick Start 1 Overview............................................................................................................. 1 Drive Configurations.................................................................................. 2 Features ........................................................................................................ 2 Unpacking and Inspection............................................................
Contents Connecting a SCSI Cable..........................................................................14 Checking the SCSI Termination ..............................................................15 Connecting a Serial Cable for Tape Libraries........................................16 Bus Composition .......................................................................................17 Connecting a Power Cable.......................................................................
Contents Data Compression............................................................................................ 35 Data Compression Considerations......................................................... 36 Intelligent Data Compression ................................................................. 37 Chapter 5 Specifications 39 Physical Specifications .................................................................................... 40 Power Specifications....................................
Contents Finding Existing SCSI Controllers and Devices ...................................59 Configuring the LTO-3 Tape Drive with mkdev..................................60 Configuring for Linux......................................................................................61 Finding Existing SCSI Controllers and Devices ...................................61 Using the LTO-3 Tape Drive ...................................................................62 Configuring for SGI Irix ......................
Figures Figure 1 Typical Internal and Desktop Configurations ......................... 2 Figure 2 Internal LTO-3 Tape Drive Jumper Settings............................. 9 Figure 3 Acceptable Mounting Orientations ......................................... 11 Figure 4 Internal LTO-3 Tape Drive Mounting Dimensions ............ 12 Figure 5 ADI Fixed Board Connector ..................................................... 13 Figure 6 ADI Free Cable Connector .............................................
Figures viii LTO-3 Tape Drive User’s Guide
Tables Table 1 ISCSI IDs and Jumper Settings for an Internal LTO-3 Tape Drive ..................................................................................... 9 Table 2 Serial Interface Connector Pin Assignments (LTO-3) ........... 16 Table 3 ADT Bus Connections................................................................ 17 Table 4 LTO-3 Tape Drive Blink Codes ................................................ 25 Table 5 Physical Specifications...............................................
Tables x LTO-3 Tape Drive User’s Guide
Preface The LTO-3 Tape Drive is a high-performance 16-channel tape drive that complies with the LTO interchange specifications. The drive is suited for mid-range to high-end servers, mainframe systems, and tape library automation systems. Audience This document was written for users of the LTO-3 Tape Drive.
Preface Document Organization This User’s Guide describes how to install, configure, and care for the LTO-3 desktop and internal tape drives. Please read the appropriate chapters and appendixes carefully, and keep this Guide handy for future reference. • Chapter 1, Overview, Unpacking Instructions and Quick Start provides on overview of LTO-3 Tape Drive and its features as well as handling precautions and unpacking tips.
Preface Related Documents Caution: Cautions indicate potential hazards to equipment and are included to prevent damage to equipment. Warning: Warnings indicate potential hazards to personal safety and are included to prevent injury. Refer to the appropriate product manuals for information about your tape drive and cartridges. SCSI-2 Specification 0 The SCSI-2 communications specification is the proposed American National Standard for information systems, dated March 9, 1990.
Preface 0 Technical Publications To comment on existing documentation send e-mail to: doc-comments@quantum.com 0 Quantum Home Page Visit the Quantum home page at: www.quantum.
Chapter 1 Overview, Unpacking Instructions and Quick Start 1 This chapter provides an overview of this product and a quick start guide. It also discusses unpacking and inspection considerations. Topics covered in this chapter are: • Overview • Internal Tape Drive Guidelines and Cautions • Quick Start Guide • Internal Tape Drive Guidelines and Cautions Overview 1 The LTO-3 is a high-performance 16-channel tape drive that complies with the LTO interchange specifications.
Chapter 1 Overview, Unpacking Instructions and Quick Start Overview Drive Configurations 1 The LTO-3 Tape Drive has a 5¼-inch, full-height form factor, with automatic electromechanical cartridge soft load. The drive is available as an internal and a desktop drive. • Internal LTO-3 Tape Drive fits in a 5¼-inch full-height drive bay. • Desktop LTO-3 Tape Drive is a stand-alone unit with a built-in power supply.
Chapter 1 Overview, Unpacking Instructions and Quick Start Unpacking and Inspection • Intelligent data compression maximizes performance and capacity by analyzing compressibility prior to recording. • Cartridge memory enables fast loading of cartridges and stores pertinent information about the media. • 128-Mbyte data buffer for high-performance. • Tape Alert drive performance monitoring and reporting. • Third generation read channel for increased maturity and data integrity.
Chapter 1 Overview, Unpacking Instructions and Quick Start Quick Start Guide Quick Start Guide 1 Use the following quick-start instructions to get your tape drive up and running as quickly as possible. Internal LTO-3 Tape Drive Quick Start 1 Use the following procedure to install the internal LTO-3 Tape Drive. Print the page and check each step as you complete it. If you need more information about a step, turn to the section referenced in the step.
Chapter 1 Overview, Unpacking Instructions and Quick Start Internal Tape Drive Guidelines and Cautions Desktop LTO-3 Tape Drive Quick Start 1 Use the following procedure to install the desktop LTO-3 Tape Drive. Print the page and check each step as you complete it. If you need more information about a step, turn to the section referenced in the step. 1 Unpack the contents of your drive package, and check for damaged items. See Internal Tape Drive Guidelines and Cautions on page 5.
Chapter 1 Overview, Unpacking Instructions and Quick Start Internal Tape Drive Guidelines and Cautions 6 • Before you remove the drive from the antistatic bag, touch a metal or grounded surface to discharge any static electricity buildup from your body. • Always lay the drive either on top of the antistatic bag or place it inside of the bag to reduce possible damage from static discharge. • Install LVD drives only in an LVD environment. Do not mix HVD and LVD devices on the same SCSI bus.
Chapter 2 2 Installation 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 Installation Instructions 2 After unpacking and inspecting your shipping containers and reviewing the installation guidelines and cautions, proceed to the appropriate section in this chapter for instructions on installing your LTO-3 Tape Drive.
Chapter 2 Installation Installing an Internal LTO-3 Tape Drive Installing an Internal LTO-3 Tape Drive 2 Installing an internal LTO-3 Tape Drive with an Ultra 160 SCSI LVD interface involves the following steps: 1 Configuring an LVD Drive 2 Mounting the Internal LTO-3 Tape Drive on page 11 3 Connecting a SCSI Cable on page 14 4 Checking the SCSI Termination on page 15 5 Connecting a Serial Cable for Tape Libraries on page 16 6 Bus Composition on page 17 7 Registering Your Tape Drive on page 18 Configuri
Chapter 2 Installation Installing an Internal LTO-3 Tape Drive and 7–8 to change the SCSI ID of the LTO-3 Tape Drive (see table 1 and table 2), or assign a unique SCSI ID to the other SCSI device. Note: The SCSI controller or host adapter generally uses ID 7. In some systems, the boot drive uses ID 0 or ID 1. Avoid setting your drive’s SCSI ID to these settings.
Chapter 2 Installation Installing an Internal LTO-3 Tape Drive Jumpers SCSI ID 1–2 3–4 5–6 7–8 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 8 Open Open Open Shunted 9 Shunted Open Open Shunted 10 Open Shunted Open Shunted 11 Shunted Shunted Open Shunted 12 Open Open Shunted Shunted 13 Shunted Open Shunted Shunted 14 Open Shunted Shunted Shunted
Chapter 2 Installation Installing an Internal LTO-3 Tape Drive Mounting the Internal LTO-3 Tape Drive You can mount the internal LTO-3 Tape Drive either horizontally or vertically, with the drive’s left side facing up (see figure 3). 2 If you mount the drive: • Vertically the left side of the drive must face up and the side of the drive should be within 5 degrees of horizontal. • Horizontally, the base of the drive must be within 15 degrees of horizontal and the drive must not be upside down.
Chapter 2 Installation Installing an Internal LTO-3 Tape Drive Figure 4 Internal LTO-3 Tape Drive Mounting Dimensions 212.0 Max. (Less connectors) 55.9 79.24 ± 0.20 82.6 Max 84.3 21.80 ± 0.20 4 x M3.0 Nearside 4 x M3.0 Farside 48.90 ± 0.60 From Upper Bezel Mounting Tabs 9.90 ± 0.20 205.0 Max. Length of Drive without Bezel (Less connectors) 4 x M3.0 x 5.0 Deep 189.70 ± 0.20 146.05 ± 0.25 147.8 48.90 ± 0.60 From Upper Bezel Mounting Tabs Connector Detail 79.24 ± 0.
Chapter 2 Installation Installing an Internal LTO-3 Tape Drive 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).
Chapter 2 Installation Installing an Internal LTO-3 Tape Drive Figure 6 ADI Free Cable Connector When the ADI free cable connector is used on both ends of a cable, likenumbered pins shall be connected together, 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 forth. Connecting a SCSI Cable 2 The internal LTO-3 Tape Drive has an Ultra 160 SCSI interface, terminated by a 68-pin LVD SCSI connector.
Chapter 2 Installation Installing an Internal LTO-3 Tape Drive Figure 7 Rear View of the Internal LTO-3 Tape drive Pin 1 Serial Library Port Caution: Checking the SCSI Termination 2 68-pin SCSI connector Drive configuration jumper pins Power connector Install an LVD drive only in an LVD environment. The Internal LTO-3 Tape Drive does not provide SCSI termination. You must place a SCSI bus terminator or a SCSI device with termination enabled at the end of the SCSI chain.
Chapter 2 Installation Installing an Internal LTO-3 Tape Drive Figure 8 Two SCSI Termination Examples for the Internal LTO-3 Tape Drive SCSI device (termination enabled) SCSI Terminator Tape drive (no termination) Tape drive (no termination) SCSI device (termination disabled) Connecting a Serial Cable for Tape Libraries Table 2 Serial Interface Connector Pin Assignments (LTO-3) 16 2 SCSI Controller SCSI Controller (termination enabled) (termination enabled) The internal LTO-3 Tape Drive inclu
Chapter 2 Installation Installing an Internal LTO-3 Tape Drive Bus Composition 2 Table 3 defines the connections that make up the ADT bus. With the exception of Sensea and Sensed this standard defines the behavior of these connections only when an initiator port asserts Sensea and the target port asserts Sensed.
Chapter 2 Installation Installing a Desktop LTO-3 Tape Drive Connecting a Power Cable 2 Attach a four-pin power cable to the power connector 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 AMP 60617-1 pins or equivalent.
Chapter 2 Installation Installing a Desktop LTO-3 Tape Drive 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 using this ID, either use the push-button switch on the back of the drive to change the drive’s SCSI ID (see figure 9) or assign a unique SCSI ID to the other SCSI device.
Chapter 2 Installation Installing a Desktop LTO-3 Tape Drive 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 interface cable to one of the 68-pin SCSI interface connectors on the back of the drive (see figure 9).
Chapter 2 Installation Installing a Desktop LTO-3 Tape Drive 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). 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 the LTO driver. See the Resource CD. This driver is not necessary with commercial backup application software.
Chapter 2 Installation Installing a Desktop LTO-3 Tape Drive 22 LTO-3 Tape Drive User’s Guide
Chapter 3 3 Operation This chapter describes how to operate the LTO-3 Tape Drive.
Chapter 3 Operation Understanding the Front Panel Display Understanding the Front Panel Display 3 Figure 11 shows a view of the LTO-3 front-panel display. Figure 11 Generic Front Panel Display Power LED Activity LED Error LED Status LED Tape load/unload button The LTO-3 Tape Drive has four LEDs on the front panel. The LED colors and functions are summarized below.
Chapter 3 Operation Blink Codes Blink Codes 3 Table 4 summarizes the blink codes for the LTO-3 Tape Drive.
Chapter 3 Operation Using LTO Cartridges Drive Condition Activity LED (Green) Error LED (Orange) Status LED (Amber) Microcode download error Fast Fast Fast Note: ON refers to a constant light; Slow refers to a blink rate of 1/2 second on, 1/2 second off; Fast refers to a blink rate of 1/8 second on, 1/8 second off.
Chapter 3 Operation Using LTO Cartridges Caution: Several seconds may elapse between the time you press the Load/Unload button and the time the cartridge is ejected. Do not power down the tape drive or the host computer until the drive has completely ejected the cartridge. Write-protecting a Cartridge 3 Ultrium cartridges have a sliding write-protect switch near the back right corner of the cartridge, see figure 12.
Chapter 3 Operation Drive Maintenance Cartridge Care and Maintenance 3 To protect 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 moisture. • Do not touch the tape media within a cartridge. • Do not use data cartridges outside the specified operating conditions: 10o C to 40o C, 20% to 80% relative humidity.
Chapter 3 Operation Drive Maintenance Cleaning the Tape Drive 3 Excessive tape debris or other material 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 the amber Status LED remains on continuously during operation. This means that the drive heads need to be cleaned.
Chapter 3 Operation Parking the Drive for Shipping Parking the Drive for Shipping 3 Quantum recommends that you “park” the LTO-3 Tape Drive before shipping it or placing it in an environment where they may be subject to physical shock. Parking the drive moves the tape mechanism to the configuration that is resilient to shock. You can park the LTO-3 Tape Drive using the Load/Unload button on the front of the drive, or by running special software on your host system.
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 Integrity • Data Compression Track Layout 4 With the LTO-3 Tape Drive, there are 704 data tracks on the LTO tape, numbered 0 through 703. Data track 703 is the track closest to the bottom edge of the tape (the reference edge). The area between adjacent servo bands is a data band.
Chapter 4 Theory Track Layout A track group is a set of tracks that is recorded concurrently. The sets of 11 data tracks in a data band are data 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 or physical reverse direction. The wraps are recorded in a serpentine fashion starting in data band 0.
Chapter 4 Theory Recording Method Recording Method 4 The LTO-3 Tape Drive records data using write-equalized (0,13/11) Run Length Limited (RLL) code. 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 transition in the bit-cell. Data Buffer 4 In its default configuration, the LTO-3 Tape Drive has a 128-Mbyte buffer.
Chapter 4 Theory Data Integrity Error-correction Code (ECC) 4 The use of Cyclic Redundancy Checking (CRC), two-level orthogonal Error Correction Coding (ECC) provides a very low probability of encountering a hard error. During the read process, ECC correction is performed on the fly without affecting tape streaming. There are two levels of Error Correction Coding (ECC).
Chapter 4 Theory Data Compression 3 Correction: Generating corrected data from syndromes. The correction depends on the number and types of errors involved: Servo-tracking Faults 4 • 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 more known C1 codeword pairs in error, the matrix is computed by firmware and the correction is performed by hardware.
Chapter 4 Theory Data Compression symbols point back to the original data string, using fewer characters to represent the strings. Because these 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 compression in tape drives: Data Compression Considerations 4 • The same amount of information can be stored on a smaller length of tape. • More data can be stored on a given length of tape.
Chapter 4 Theory Data Compression The transfer rate depends on factors such as: • Compression ratio • Drive buffer size • 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 be tailored to provide maximum compression for specific types of data.
Chapter 4 Theory Data Compression Software data compression should never be used because the LTO-3 Tape Drive's built-in intelligent data compression is much more efficient than software data compression systems. The LTO-3 Tape Drive uses a derivative of ALDC-2 lossless data compression that includes additional control codes for intelligent data compression.
Chapter 5 5 Specifications This chapter provides technical specifications for the LTO-3 Tape Drive.
Chapter 5 Specifications Physical Specifications Physical Specifications 5 Table 5 lists the physical specifications of the LTO-3 Tape Drive. Table 5 Physical Specifications Internal SCSI Drive without Bezel Internal SCSI Drive with Bezel Desktop SCSI Drive Height 3.25 inches (82.6 mm) max 3.31 inches (84.3 mm) 6.8 inches1 (172.7 mm) Width 5.75 inches (146.05 ± 0.25) 5.81 inches (147.8 mm) 7.61 inches (193.3 mm) Length 8.06 inches (205 mm) 8.3 inches (212 mm) max 12.17 inches2 (309.
Chapter 5 Specifications Physical Specifications Figure 14 shows the dimensions of the internal LTO-3 Tape Drive. Figure 14 Internal LTO-3 Tape Drive Dimensions 212.0 Max. (Less connectors) 55.9 79.24 ± 0.20 82.6 Max 84.3 21.80 ± 0.20 48.90 ± 0.60 From Upper Bezel Mounting Tabs 4 x M3.0 Nearside 4 x M3.0 Farside 9.90 ± 0.20 205.0 Max. Length of Drive without Bezel (Less connectors) 4 x M3.0 x 5.0 Deep 189.70 ± 0.20 146.05 ± 0.25 147.8 48.90 ± 0.60 From Upper Bezel Mounting Tabs 79.24 ± 0.
Chapter 5 Specifications Power Specifications Power Specifications 5 The desktop LTO-3 Tape Drive comes with a built-in 90-260VAC (47-63 Hz) automatic switching power supply. Maximum voltage and power specifications for the internal LTO-3 Tape Drive is listed in the tables below. Specifications are the same for SCSI drives unless otherwise noted. Table 6 Voltage and Current Specification +12 VDC + 5VDC DC Voltage Tolerance 12.00 + or – 10% 5.
Chapter 5 Specifications Drive Performance Specifications Drive Performance Specifications 5 Table 8 lists the performance specifications for the LTO-3 Tape Drive.
Chapter 5 Specifications Environmental Requirements Specification Value Average rewind time (609-m tape) > 51 seconds Maximum rewind time (609-m tape) < 115 seconds Average data access time (609-m tape) from BOW (beginning of wrap) 58 seconds Maximum data access time (609-m tape) from BOW 115 seconds Average rewind time (609-m tape) < 115 seconds Tape speed Up to 5.9 meters per second Environmental Requirements 5 Table 9 lists the environmental specifications for the LTO-3 Tape Drive.
Chapter 5 Specifications Reliability Specification Operational Non-operational Humidity gradient 10% per hour 10% per hour Altitude max 10,000 feet MSL (at 25°C) 40,000 feet (power off) Shock (1/2 sine wave) 10 Gs peak, 11 msec 40 Gs peak, 11 msec Vibration (sweep test) 0.005 inches DA (5-43 Hz) 0.50 G peak (43–1000 Hz) sweep rate 5-1000Hz; 1.0 octave per minute 0.1 inches (5-–15Hz) 1.0 G (15–500 Hz) 1.0 octave per minute Acoustic level idling (A-wt sum) 52 dBA maximum 5.
Chapter 5 Specifications Mean Time Between Failures Table 10 Reliability Specification Description Non-recoverable error rate Less than 1 in 1017 bits Error recovery and control • Error correction code techniques (C1 and C2 ECC) • Read-after-write (RAW) • Error monitoring and reporting (error log) • Retry on Mean time between failures (MTBF) 250,000 hours MTBF at 100% duty cycle: power applied and tape moving continuously (Desktop drive; 50,000 hours at full load and 25°C) Cartridge load/ unload
Chapter 5 Specifications LTO Cartridge Specifications Mean Time to Replace The mean time to replace (MTTR) is the average time required by a 5 qualified service technician to diagnose a defective drive and to install a replacement drive. The MTTR for LTO products is less than 0.5 hour (30 minutes). The Quantum LTO drives are field-replaceable units. If a problem occurs with a subassembly or component in the drive, you should replace the entire unit.
Chapter 5 Specifications Regulatory Compliance Cartridge Memory 5 Each Ultrium cartridge has 4 Kbytes of nonvolatile memory: 3 Kbytes are used to store tape-directory and hardware specific information. 1 Kbyte is available for application and OEM use. The cartridge memory is powered, read, and written to via a radio-frequency link. Cartridge Reliability Recommended cartridge use: After 5,000 load/unload cycles, replace the cartridge to insure data integrity.
Chapter 5 Specifications Regulatory Compliance Country Regulatory Organization Compliant to: China Chinese Commodity Import Bureau (CCIB) CCIB safety certification EU member nations Comité Europèen de Normalisation Electrotechnique – the European Committee for Electrotechnical Standardization (CENELEC) IEC 950 / EN60950 (including amendments A1, A2, A3, A4, A11) Member nations of IECEE* IECEE* International Electrotechnical Commission on Electrical Equipment (IECEE) for Mutual Recognition of Test
Chapter 5 Specifications Regulatory Compliance Electromagnetic Compatibility (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: Digital Device (47CFR15B) Canada Industry Canada Digital Apparaus - Interference-Causing Equipment Standard (ICES-003) ICES-003 Class B: Digital Apparatus EU member nations CE Emissions per CISPR 22:1997 EN55022:1998 and Immunity per CISPR 24:1997
Chapter 5 Specifications Disposal of Electrical and Electronic Equipment Note: Use these drives only in equipment where the combination has been determined to be suitable by an appropriate certification organization (for example, Underwriters Laboratories Inc. or the Canadian Standards Association in North America).
Chapter 5 Specifications Disposal of Electrical and Electronic Equipment 52 LTO-3 Tape Drive User’s Guide
Chapter 6 UNIX Settings 6 This chapter describes how to configure 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 Environment (Solaris 2.4, 2.5, 2.6, 7, 8, and 9) • Configuring for the IBM AIX Environment (AIX Version 4.1.x and later) on page 58 • Configuring for SCO Open Server 5.0.
Chapter 6 UNIX Settings A Word About SCSI Controllers A Word About SCSI Controllers 6 The LTO-3 Tape Drive transfers data natively at 68 Mbytes 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 is important to choose high-performance disk drives for your system, as well as high-performance SCSI controllers.
Chapter 6 UNIX Settings Configuring for the Sun Environment (Solaris 2.4, 2.5, 2.6, 7, 8, and 9) DENSITY: # DensityNumber=1 DensityCode=default CompressionCode=0x1 Buffered=0x1 Save the file. Then run the following command: ddr_config-c ddr_config takes the default input file, ddr.dbase, and builds a new device database. This command takes effect immediately without having to rebuild the kernel. Note: ddr.dbase is a Unix shell script and is not written in C.
Chapter 6 UNIX Settings Configuring for the Sun Environment (Solaris 2.4, 2.5, 2.6, 7, 8, and 9) For example, the command .dmesg | egrep .target. | sort | uniq. can find all SCSI controllers and SCSI targets.
Chapter 6 UNIX Settings Configuring for the Sun Environment (Solaris 2.4, 2.5, 2.6, 7, 8, and 9) 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 records (variable length block size) • Backspace over files (same as .mt bsf. command to backspace over filemarks) • Backspace over records (same as .mt bsr.
Chapter 6 UNIX Settings Configuring for the IBM AIX Environment (AIX Version 4.1.x and later) Configuring for the IBM AIX Environment (AIX Version 4.1.x and later) Finding Existing SCSI Controllers and Devices 6 6 Enter the following command: lsdev–Cs scsi. This shows all the SCSI target IDs known to the system. Note the SCSI target IDs and choose a SCSI ID for the LTO-3 Tape Drive that will not conflict with the IDs shown from the lsdev command.
Chapter 6 UNIX Settings Configuring for SCO Open Server 5.0.x Set RESERVE/RELEASE support to yes. Set BLOCK SIZE for variable length support (Num.) to 0. Set Density 1 to 0. 6 Leave the Set delay. . . and Set timeout. . . lines at the default value. 7 Click OK and the drive will be installed in the system database, and devices created. There is no need to reboot the system. 8 Exit SMIT. Note: We suggest using the AIX commands .backup and restore when transferring data to and from the LTO-3 Tape Drive.
Chapter 6 UNIX Settings Configuring for SCO Open Server 5.0.x 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 Adaptec SCSI controller is installed (alad) and a SCSI tape drive (type=S) is installed as target id 6. SCSI ID #7 is almost always dedicated to the SCSI controller. Never configure your target device for ID 7 unless you are absolutely sure the controller is not addressed for ID 7.
Chapter 6 UNIX Settings Configuring for Linux 13 When the process takes you back to the two Main Menu screens, press q. 14 When asked to create a new kernel, enter yes. 15 When asked if you want the new kernel to boot by default press y. 16 When asked if you want the kernel environment to be rebuilt press y. 17 Reboot the system. Note: Not all of the SCO “tape” commands will operate or be applicable to the LTO-3 Tape Drive (execute the command .man tape. for the specifics on how the tape command works).
Chapter 6 UNIX Settings Configuring for Linux You may see output similar to: (scsi0) found at PCI 0/16/0 To find existing SCSI devices execute the command: cat /proc/scsi/scsi You may see output similar to: Host: scsi0 Channel: 0 Id:6 Lun:00 Vendor: CERTANCE Model: ULTRIUM 3 Type: SequentialAccess ANSI SCSI Revision 04 Use the output of these two commands to see which SCSI target ID numbers are free.
Chapter 6 UNIX Settings Configuring for SGI Irix Configuring for SGI Irix Finding Current SCSI Controllers and Targets 6 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 target devices.
Chapter 6 UNIX Settings Configuring for HP-UX 11.0 M TCAN_COMPRESS, 40, 5*60, 10*60, 10*60, 3*3600, 512, 256*512, tpsc_default_dens_count, tpsc_defalt_hwg_dens_names, tpsc_default_alias_dens_names, {0}, 0, 0, 0, 0, (u_char*) 0}, After modifying the configuration file, recompile the kernel with the autoconfig command and reboot the system. If you are replacing an existing storage device with the same SCSI ID remove the device files prior to using the autoconfig command and rebooting the system.
Chapter 6 UNIX Settings Configuring for HP-UX 11.0 • x is the data under H/WPath from the ioscan. • y is the data under I from the ioscan. • z is the tape device identifier number. You can execute an ls command for the /dev/rmt directory to choose an identifier number 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.
Chapter 6 UNIX Settings Configuring for HP-UX 11.
Chapter 7 7 Troubleshooting Guide This chapter contains best practices for getting the most out of your LTO-3 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.
Chapter 7 Troubleshooting Guide Installation Best Practices 7 Do Not: • 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 the tape drive and your backups. • Connect the tape drive to a disk RAID controller, as this is not supported.
Chapter 7 Troubleshooting Guide Troubleshooting Suggestions Ensure that the SCSI cable is of high quality and conforms to Ultra 160 SCSI specifications. A lesser quality cable or a cable that does not conform to the Ultra 160 SCSI specification may cause intermittent write/read errors, SCSI timeouts, and corrupted data.
Chapter 7 Troubleshooting Guide Troubleshooting Suggestions • If the tape drive is not recognized during the SCSI controller scan, check the Power LED to make sure the tape drive is receiving power. If the Power LED is not illuminated, check the power connections to the tape drive. Internal tape drive: 7 1 Power down the system and reseat the power connector on tape drive. 2 Power on the system and check the Power LED.
Chapter 7 Troubleshooting Guide Troubleshooting Suggestions Internal tape 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 Try to use SCSI cable from other SCSI controller bus chain if possible. 6 If these suggestions do not help, the tape drive may be bad and Customer Support should be contacted.
Chapter 7 Troubleshooting Guide Troubleshooting Suggestions Red Hat Linux 7 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.
Chapter 7 Troubleshooting Guide Troubleshooting Suggestions 2 If the Power LED is illuminated but other LEDs are on or flashing. check to see if other LED activity is normal or abnormal (see table 4 on page 25). 3 If the Power-On-Self-Test Failure LEDs are on, contact Customer Support. 4 If other LEDs are on, reboot the drive by holding the front panel button for more than 5 seconds and releasing it or by power cycling the drive.
Chapter 7 Troubleshooting Guide Troubleshooting Suggestions 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 whether power is being applied to the system and/or the desktop tape drive if the tape drive is a desktop unit. Follow troubleshooting steps under Computer Boots but Does Not Recognize the Tape Drive on page 69 to determine why the Power LED is not illuminated.
Chapter 7 Troubleshooting Guide Troubleshooting Suggestions 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 Tape Drive stops communicating with the host computer, use the following procedure to reset the drive and eject a cartridge (if necessary).
Chapter 7 Troubleshooting Guide Troubleshooting Suggestions A media error occurred during write or read operation on the tape drive. Review the troubleshooting procedures to ensure that the proper SCSI cabling and termination practices are being followed. Restart the backup if any changes are made to the SCSI cabling or termination or if any cables or terminator are unplugged then replugged. This message may also be seen with, “The tape is from a faulty batch or the tape drive is faulty.
Chapter 7 Troubleshooting Guide Troubleshooting Suggestions 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. 7 Tape is Write Protected The following troubleshooting steps start when software logged a TapeAlert message. The TapeAlert message can be viewed either on the main console screen or in the backup software’s log file.
Chapter 7 Troubleshooting Guide Troubleshooting Suggestions Or The tape drive has a hardware fault: 1 1.Turn 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 on turning the device power on and off. To determine whether the LED activity indicates a Hardware or Firmware Error or Manual Intervention Required see table 4 on page 25.
Chapter 7 Troubleshooting Guide Troubleshooting Suggestions This message means the tape drive does not recognize the cleaning tape as being of a valid type. You 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 message to backup software to instruct you to clean the tape drive, you may see the message: The tape drive needs cleaning: 1 If the operation has stopped, eject the tape and clean the drive.
Chapter 7 Troubleshooting Guide Troubleshooting Suggestions The method of performing the backups can also be a factor in “slow” backups. Data sent to the tape drive over a network connection and delays in data transfer over a network connection can cause backups to slow down. 1 Perform write/read test with diagnostic software. This ensures a test of the connection between the tape drive and SCSI controller and removes the network data transfer and the backup software from the diagnosis.
Index A AIX 4.
Index intelligent 37 Data integrity 33 error-correction code 34 servo-tracking faults 35 DEC/Compaq Unix settings 54 Desktop drive checking SCSI termination 20 connecting a power cable 21 connecting a SCSI cable 19 installation instructions 18 installing the LTO driver 21 quick start 5 SCSI ID 19 Drive overview xi Drive maintenance cleaning a tape drive 29 parking a tape drive 30 Drive performance specifications 43 E Ejecting a cartridge 75 Electromagnetic compatibility 50 Emergency cartridge eject 75 Eme
Index connecting a power cable 18 connecting a SCSI cable 14 connecting a serial cable 16 guidelines and cautions 5 installation instructions 8 installing the LTO driver 18 mounting 11 quick start 4 SCSI ID 8 terminator power 10 Power cable connection desktop drive 21 internal drive 18 Power specifications 42 Q Quick start desktop drive 5 external drive 5 internal drive 4 L Layout of track 31 Linux settings 61 Loading a cartridge 26 LTO-3 features 2 R Recording method 33 Registering tape drive 18, 21 R
Index Slow backups 79 Specifications drive performance 43 electromagnetic compatibility 50 environmental requirements 44 injected noise 45 LTO cartridge 47 mean time between 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 tape will not eject from drive 74 tapeAlert messages 77 U Unix settings DEC/Compaq Unix 54 SCO Open Server 5.0.x 59 Sun (Solaris 2.4, 2.5, 2.
