CERTANCE Online User's Guide LTO - 1 / LTO - 2 Ta p e D r i ve s i
Copyright and Trademarks Copyright © 2003 by Certance LLC. All Rights Reserved. Part Number 50001007 August 2003 Certance and the Certance logo are trademarks of Certance LLC. Seagate is a trademark of Seagate Technology LLC. Other product names are trademarks or registered trademarks of their respective owners. Certance reserves the right to change, without notice, product offerings or specifications. No part of this publication may be reproduced in any form without written permission from Certance LLC.
Warnings All safety and operating instructions should be read before this product is operated, and should be retained for future reference. This unit has been engineered and manufactured to assure your personal safety. Improper use can result in potential electrical shock or fire hazards. In order not to defeat the safeguards, observe the following basic rules for installation, use and servicing.
Precautions • Do not use oil, solvents, gasoline, paint thinners, or insecticides on the unit. • Do not expose the unit to moisture or to temperatures higher than 151 °F (66 °C) or lower than -40 °F (-40°C). • Keep the unit away from direct sunlight, strong magnetic fields, excessive dust, humidity, and electronic/electrical equipment, which generate electrical noise. • Hold the power cord by the head when removing it from the AC outlet; pulling the cord can damage the internal wires.
FCC Notice This equipment generates and uses radio frequency energy and, if not installed and used properly — that is, in strict accordance with the manufacturer's instructions — may cause interference to radio communications or radio and television reception.
Contents Chapter 1 - Introduction .................................................. 10 Features ............................................................................. 11 Using This Guide .................................................................. 12 Chapter 2 - Installation (and Quick Start) ..................... 13 Introduction ......................................................................... 13 Quick Start Guide .................................................................
Mean Time Between Failures ................................................... 50 LTO Cartridge Specifications ................................................... 51 Regulatory Compliance .......................................................... 52 Chapter 6 - Unix Settings ................................................ 55 A Word About SCSI Controllers ............................................... 55 Configuring for the DEC/Compaq Unix Environment ....................
List of Figures Figure 1. Drives Covered in this User’s Guide ......................................................... 10 Figure 2. Connector Labels ................................................................................... 16 Figure 3. Internal LTO-1 and LTO-2 Drive Jumper Settings ......................................... 17 Figure 4. Acceptable Mounting Orientations........................................................... 19 Figure 5. Internal LTO-1 and LTO-2 Drive Mounting Dimensions .......
List of Tables Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table Table 1. SCSI IDs and Jumper Settings for LTO-1 and LTO-2 Drives............................ 18 2. Serial Interface Connector Pin Assignments ................................................ 21 3. Loop IDs and Corresponding Jumper Settings ............................................. 24 4. Serial Interface Connector Pin Assignments ................................................
1. Introduction The LTO-1 and LTO-2 are high-performance 8-channel tape drives that comply with the LTO interchange specifications. Both drives are suited for mid-range to high-end servers, mainframe systems, and tape library automation systems. Both drives use Ultrium data cartridges. Their capacity is maximized using intelligent data compression. • The LTO-1 drive has a native capacity of 100 Gbytes (200 Gbytes assuming 2:1 data compression).
Introduction Features Features The following list summarizes the key features of the LTO-1 and LTO-2 drives. • Performance • LTO-1: Up to 16 Mbytes-per-second native transfer. • LTO-2: Up to 34 Mbytes--per-second native transfer. • FastSense™ — optimizes data transfers, resulting in shorter backup times and increased reliability. • Two convenient form-factors: • 5¼-inch internal form-factor for installation in a 5¼-inch half-height space. • External desktop form-factor.
Introduction Using This Guide Using This Guide This User’s Guide describes how to install, configure, and care for the LTO-1 and LTO-2 desktop and internal tape drives. Please read the appropriate chapters and appendixes carefully, and keep this Guide handy for future reference. • Chapter 1, Introduction provides an overview of LTO and Ultrium technology, and summarizes the drive’s key features.
2. Installation (and Quick Start) Introduction This chapter explains how to install the Internal LTO-1 and LTO-2 and desktop drives.
Installation (and Quick Start) Quick Start Guide ❑ 6. Connect a serial cable, if connecting the tape drive to a tape library. See “Connecting a Serial Cable for Tape Libraries” on page 21. ❑ 7. Connect a power cable to the drive. See “Connecting a Power Cable” on page 22. ❑ 8. Replace the computer covers and power cable, turn on the computer, and verify that the internal tape drive is operating properly. ❑ 9.
Installation (and Quick Start) Unpacking and Inspection Desktop LTO-1 and LTO-2 Tape Drive Quick Start Use the following procedure to install desktop LTO-1 and LTO-2 tape drives. Print this 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 missing or damaged items. See “Unpacking and Inspection” on page 15. ❑ 2.
Installation (and Quick Start) Drive Installation Instructions • 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 the chance of damage from static discharge. • Install HVD drives only in an HVD environment, Fibre Channel drives only in a Fibre Channel environment, and LVD drives only in an LVD environment.
Installation (and Quick Start) Installing an Internal LTO-1 or LTO-2 Drive Configuring an HVD or LVD Drive Before you install the HVD or LVD tape drive in your computer, you may need to configure the drive’s SCSI ID and terminator power features. The default configuration settings for the LTO-1 and LTO-2 drives are: • SCSI ID: 6 • Terminator power: disabled If you need to change these settings, refer to the following sections. Otherwise, skip to “Mounting an Internal HVD or LVD Drive” on page 19.
Installation (and Quick Start) Installing an Internal LTO-1 or LTO-2 Drive Table 1.
Installation (and Quick Start) Installing an Internal LTO-1 or LTO-2 Drive Mounting an Internal HVD or LVD Drive You can mount the internal LTO-1 and LTO-2 drives either horizontally or vertically, with the drives left side facing up (see Figure 4 on page 19). • 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.
Installation (and Quick Start) Installing an Internal LTO-1 or LTO-2 Drive Connecting a SCSI Cable The internal LTO-1 and LTO-2 drives have an Ultra2 SCSI interface, terminated by either a 68-pin HVD or LVD SCSI connector. Use the following procedure to connect a SCSI cable to 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 6 on page 20). 8 Figure 6.
Installation (and Quick Start) Installing an Internal LTO-1 or LTO-2 Drive SCSI Terminator Tape drive (no termination) SCSI device (termination enabled) Tape drive (no termination) SCSI device (termination disabled) SCSI Controller SCSI Controller (termination enabled) (termination enabled) Figure 7.
Installation (and Quick Start) Installing an Internal LTO-1 or LTO-2 Drive Connecting a Power Cable Attach a four-pin power cable to the power connector on the back of the drive. Figure 6 on page 20 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.
Installation (and Quick Start) Installing an Internal LTO-1 Fibre Channel Drive Installing an Internal LTO-1 Fibre Channel Drive This section describes how to install an internal LTO-1 drive equipped with a Fibre Channel LC Optical (FC) interface. Installing an internal LTO-1 FC drive involves the following steps: 1. “Configuring the Internal Fibre Channel Drive” on page 23 2. “Mounting the Internal FC Drive” on page 24 3. “Connecting a Fibre Channel Cable” on page 25 4.
Installation (and Quick Start) Installing an Internal LTO-1 Fibre Channel Drive Table 3.
Installation (and Quick Start) Installing an Internal LTO-1 Fibre Channel Drive Figure 10. Internal LTO-1 FC Drive Mounting Dimensions Connecting a Fibre Channel Cable The internal LTO-1 FC drive has two FC connectors that can connect to either a hub or a switch. In systems that support failover, both FC connectors can be used to allow hosts to maintain a connection with the drive if one connection fails. The internal LTO-1 FC drive is 100-M5-SN-I compliant and uses LC style connectors. Either 50 or 62.
Installation (and Quick Start) Installing an Internal LTO-1 Fibre Channel Drive Figure 11. FC Optical Connectors on the Back of the Internal LTO-1 FC Drive Connecting a Serial Cable for Tape Libraries The Internal LTO-1 FC drive includes an RS-422 serial interface for tape libraries. This connector is located on the lower left side of the back of the drive (see Figure 12 on page 26). Table 4 on page 26 shows the pin descriptions for the serial interface connector.
Installation (and Quick Start) Installing an Internal LTO-1 Fibre Channel Drive Table 4. Serial Interface Connector Pin Assignments (Continued) Pin Numbers Description 8 Lib RXp (input to drive, receive positive) 9 through 18 Reserved (do not use) Connecting a Power Cable Attach a four-pin power cable to the power connector on the back of the drive. Figure 13 on page 27 shows the location of the power connector on internal LTO-1 FC drive.
Installation (and Quick Start) Installing a Desktop Drive Installing a Desktop Drive The desktop LTO-1 and LTO-2 tape drives) are compact subsystems that connect to the host computer through a SCSI port. Installing a desktop drive involves the following steps: 1. “Setting the SCSI ID” on page 28 2. “Connecting a SCSI Cable” on page 29 3. “Checking the SCSI Termination” on page 29 4. “Connecting a Power Cord” on page 30 5.
Installation (and Quick Start) Installing a Desktop Drive Connecting a SCSI Cable The desktop LTO-1 and LTO-2 drives have two 68-pin, shielded SCSI interface connectors (ANSI Alternative 2) on the rear panel (see Figure 14 on page 28). These connectors consist of two rows of ribbon contacts spaced 2.16 mm (0.085 in) apart. Either connector can be used as a SCSI IN or SCSI OUT connection. This means you can use either connector to attach the drive to a host computer or to another SCSI device. 1.
Installation (and Quick Start) Installing a Desktop Drive Connecting a Power Cord Attach the power cord securely to the power connector on the back of the desktop LTO-1 or LTO-2 drive (see Figure 14 on page 28). Installing the LTO Driver 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 Tape Resource CD. This driver is not necessary with commercial backup application software.
3. Operation This chapter describes how to operate the LTO-1 and LTO-2 drives.
Operation Blink Codes All drives have four LEDs on the front panel. The LED colors and functions are summarized below. • Power LED (green) • LTO-2 only: Blinks during drive power-up and Power-on Self Test (POST). • Remains on during normal operation. • Remains on along with the Status light If there is an error during the POST. • Status LED (amber) • Error LED (orange) • Drive LED (green) The Status, Error, and Drive LEDs blink or go on to indicate information about the tape drive.
Operation Blink Codes Table 5.
Operation Using LTO Cartridges Using LTO Cartridges Loading a Cartridge To load an Ultrium cartridge into LTO-1 and LTO-2 drives, place the cartridge in the slot and then gently push it. Then: • Continue to push the cartridge the rest of the way into the drive; or, • Press the load/unload button on the front of the drive to seat the cartridge; or, • Use a library or host command to finish loading the tape.
Operation Using LTO Cartridges Write-protecting a Cartridge Ultrium cartridges have a sliding write-protect switch near the back right corner of the cartridge, as shown in Figure 17 on page 35. • If you slide the switch to the position farthest from the corner of the cartridge, data can be read from the cartridge but not written to it. • If you slide the switch all the way toward the corner (as shown in Figure 17 on page 35), data can be read from and written to the cartridge.
Operation Drive Maintenance • Keep the cartridge away from direct sunlight and heat sources, such as radiators, heaters or warm air ducts. • Keep the cartridge away from sources of electromagnetic fields, such as telephones, computer monitors, dictation equipment, mechanical or printing calculators, motors, magnetic tools, and bulk erasers. • Avoid dropping the cartridges. This can damage components inside the cartridge, possibly rendering the tape unusable.
Operation Parking the Drive for Shipping Parking the Drive for Shipping Certance recommends that you “park” LTO-1 and LTO-2 drives before shipping them or placing them in an environment where they may be subject to physical shock. Parking the drives moves the tape mechanism to the configuration that is resilient to shock. You can park the LTO-1 and LTO-2 drives using the Load/Unload button on the front of the drive, or by running special software on your host system.
4. Theory This chapter describes operational theories used in the LTO-1 and LTO-2 drives. The topics covered in this chapter are: • “Track Layout” on page 38 • “Recording Method” on page 39 • “Data Buffer” on page 40 • “Data Integrity” on page 40 • “Data Compression” on page 42 Track Layout Figure 18 on page 38 shows the layout of data on an LTO tape. Figure 18.
Theory Recording Method LTO-1 Drive With the LTO-1 drive, there are 384 data tracks on the LTO tape, numbered 0 through 383. Data track 383 is the track closest to the bottom edge of the tape (the reference edge). The area between adjacent servo bands is a data band. There are 4 data bands, each of which includes 96 data tracks. The data bands are numbered 2,0,1,3. Data band 2 is closest to the bottom edge of the tape. A track group is a set of tracks that is recorded concurrently.
Theory Data Buffer Data Buffer In their default configuration, both the LTO-1 and LTO-2 drives have a 64-Mbyte buffer. The buffer controller has a burst transfer rate of 320 Mbytes/sec, and utilizes bank switching to achieve a maximum average bandwidth of nearly 240 Mbytes/sec. The high bandwidth is needed to support lookaside data compression in the case of compressible data being transferred from SCSI at 80 Mbytes/ sec.
Theory Data Integrity C2 ECC C2 ECC involves three distinct operations: 1. Encoding: Generating C2 ECC bytes from data bytes (performed by ECC co-processor hardware) 2. Decoding: Generating ECC syndromes from data and ECC bytes, testing for all-zeroes (performed by ECC co-processor hardware) 3. Correction: Generating corrected data from syndromes.
Theory Data Compression Data Compression Typical data streams of text, graphics, software code, or other forms of data contain repeated information of some sort, whether it is at the text level where you can readily recognize regular repetitions of a single 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 degrees of regularity.
Theory Data Compression • 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. Because varying types of data are encountered in normal day-to-day operating circumstances, however, an effective data compression method for a tape drive must serve various data types.
5. Specifications This chapter provides technical specifications for the LTO-1 and LTO-2 drives.
Specifications Physical Specifications Figure 19 shows the dimensions of the internal LTO-1 and LTO-2 HVD/LVD drives. Figure 19.
Specifications Physical Specifications Figure 20 shows the dimensions of the LTO-1 Fibre Channel drive. Figure 20.
Specifications Power Specifications Power Specifications The desktop LTO-1 and LTO-2 drives come with a built-in 90-260VAC (47-63 Hz) automatic switching power supply. Maximum voltage and power specifications for the internal LTO-1 and LTO-2 drives are listed in the tables below. Specifications are the same for SCSI and Fibre Channel drives unless otherwise noted. Table 8.
Specifications Drive Performance Specifications Table 9. Power Dissipation (Continued) Specification LTO-1 LTO-2 Ultra2 SCSI LVD; Ultra SCSI HVD 48.5 watts RMS (1 sec max) 65 watts RMS (1 sec max) Fibre Channel 58.5 watts RMS* N/A Max Peak Operating Power * RMS parameters measured at the power connector using a true RMS digital meter. Drive Performance Specifications Table 10 on page 48 lists the performance specifications for the LTO-1 and LTO-2 drives. Table 10.
Specifications Environmental Requirements Table 10. Drive Performance Specifications Specification Value Asynchronous transfer rate (burst) 40 Mbytes per sec max Cartridge unload time 3 seconds Average rewind time (609-m tape) LTO-1: > 4 seconds LTO-2: > 5.9 seconds Maximum rewind time (609-m tape) LTO-1: <152 seconds LTO-2: <103 seconds Average data access time (609-m tape) from BOW LTO-1: 76 seconds LTO-2: 51.
Specifications Reliability Injected Noise The internal drive operates without degradation of error rates with 100 mV of noise injected between the chassis and 0 V at the power connector at any frequency between 45 Hz and 20 MHz. Reliability The LTO-1 and LTO-2 drives are designed for maximum reliability and data integrity. Table 12 on page 50 summarizes the reliability specifications. Table 12.
Specifications LTO Cartridge Specifications The Certance LTO drives are field-replaceable units. If a problem occurs with a subassembly or component in the drive, you should replace the entire unit. Return the drive to the factory in its original packaging. Contact your distributor, dealer, your computer system company or your Certance sales representative to arrange the return.
Specifications Regulatory Compliance Regulatory Compliance These drives comply with the safety and EMC regulations listed in the following tables. Safety Compliance Table 14. Safety Compliance Country Regulatory Organization Compliant to: United States Underwriters Laboratories (UL) Canada Canadian Standards Association (CSA) CSA 22.
Specifications Regulatory Compliance * Member nations of the IECEE include Austria, Australia, Belgium, Canada, China (PR), Czech Republic, Denmark, Finland, France, Germany, Hungary, India, Ireland, Israel, Italy, Japan, (South) Korea, Netherlands, Norway, Poland, Russian Federation, Singapore, Slovakia, Slovenia, South Africa, Spain, Switzerland, United Kingdom, USA, Yugoslavia. Electromagnetic Compatibility (EMC) Table 15.
Specifications Regulatory Compliance You should also consider the following safety points: • Install the drive in an enclosure that limits the user’s access to live parts, gives adequate system stability and provides the necessary grounding for the drive. • Provide the correct voltages (+5 VDC and +12 VDC) based on the regulation applied—Extra Low Voltage (SEC) for UL and CSA, and Safety Extra Low Voltage for BSI and VDE (if applicable).
6. Unix Settings This chapter describes how to configure various UNIX systems to recognize and obtain optimal performance from the LTO-1 and LTO-2 tape drives. The topics covered in this chapter are: • “A Word About SCSI Controllers” on page 55 • “Configuring for the DEC/Compaq Unix Environment” on page 56 • “Configuring for the Sun Environment (Solaris 2.4, 2.5, 2.6, 7, 8, and 9)” on page 57 • “Configuring for the IBM AIX Environment (AIX Version 4.1.
Unix Settings Configuring for the DEC/Compaq Unix Environment Configuring for the DEC/Compaq Unix Environment Finding Existing SCSI Controllers and Devices SCSI ID #7 is almost always dedicated to the SCSI controller. Never configure your target device for ID 7 unless you are absolutely sure that the controller is not addressed for ID 7. Configuring Digital UNIX Version 4.0 and later/Compaq Tru64 Unix 5.x Use File Manager to open the file /etc/ddr.
Unix Settings Configuring for the Sun Environment (Solaris 2.4, 2.5, 2.6, 7, 8, and 9) To enable the tape driver to turn on data compression when writing data to tape use the .c. option. For commands that use density and tape size settings, the tape density is 124,000 bpi and the tape length is 1800 feet. For commands that use a blocking factor, we recommend a blocking factor of 64 as a minimum (128 is recommended). Configuring for the Sun Environment (Solaris 2.4, 2.5, 2.
Unix Settings Configuring for the Sun Environment (Solaris 2.4, 2.5, 2.6, 7, 8, and 9) Configuring the Device File st.conf To configure Solaris 2.4 and above to use the LTO-1 and LTO-2 drives correctly, add the following lines to the file st.conf in the directory /kernel/drv. tape-config-list= "CERTANCEULTRIUM 2","Seagate LTO","SEAGATE_LTO"; SEAGATE_LTO=1,0x36,0,0x1d639,4,0x00,0x00,0x00,0x00,1; NOTE: If installing a Seagate LTO 1 tape drive, replace "CERTANCEULTRIUM 2" with "SEAGATE ULTRIUM06242-XXX.
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 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-1 and LTO-2 drives that will not conflict with the IDs shown from the lsdev command. SCSI ID #7 is almost always dedicated to the SCSI controller.
Unix Settings 8. Configuring for SCO Open Server 5.0.x Exit SMIT. NOTE: We suggest using the AIX commands .backup. and .restore when transferring data to and from the LTO-1 and LTO-2 drives. These commands transfer data more quickly than other commands such as tar and cpio. For cpio we suggest a blocking factor of 128. For tar we suggest using the .N option and a factor of 128. Some older systems with poor video controllers may experience a reduction in performance when using the .
Unix Settings Configuring for SCO Open Server 5.0.x 5. Enter the number of the SCSI bus attached to the drive. Refer to the SCSI adapter documentation. For many adapters this will be zero (0). 6. Enter the SCSI ID of the tape drive. 7. Enter the number zero (0) for the LUN of the device. 8. When prompted to Update the SCSI configuration? (y/n), enter y. 9. When prompted for Vendor Identification string, enter SEAGATE for the LTO-1 tape drive or CERTANCE for the LTO-2 tape drive. 10.
Unix Settings Configuring for Linux Configuring for Linux Finding Existing SCSI Controllers and Devices Before installing the LTO-1 and LTO-2 tape drives, ensure that the requisite SCSI controllers and device drivers are installed on your system.
Unix Settings Configuring for SGI Irix Configuring for SGI Irix Finding Current SCSI Controllers and Targets 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.
Unix Settings Configuring for HP-UX 11.0 Configuring for HP-UX 11.0 Finding Current Hardware/Driver Configuration To find currently installed SCSI controllers and devices, use the command can ioscan–f. This command lists all the system devices and their device names. Attaching the LTO-1 and LTO-2 drives Choose a SCSI address that does not conflict with any already attached SCSI devices on your SCSI controller. See figure 1 for jumper installation for the LTO-1 and LTO-2 drives.
7. Interfaces This chapter describes the LTO-1 and LTO-2 drive interfaces. Topics in this chapter are: • “Parallel SCSI Interface” on page 65 • “Fibre Channel Interface” on page 66 • “Commands” on page 66 • “Typical System Configurations” on page 68 Parallel SCSI Interface The LTO-1 and LTO-2 drives feature a multi-mode LVD or HVD single-ended SCSI-2 interface. The drive’s SCSI-2 interface allows for communication between the host computer and the tape drive.
Interfaces Fibre Channel Interface SCSI-2 ANSI X3.
Interfaces Commands Table 18.
Interfaces Typical System Configurations Tape Alert Flags The LTO-1 and LTO-2 drives support version 3.0 of the Tape Alert specification. The following flags are supported by the drive. Table 19.
Interfaces Typical System Configurations Fibre Channel Interface The Fibre Channel LTO-1 drive supports 128 arbitrated loop physical addresses. Up to 126 hosts and targets and one switch can be attached to a single loop. Due to the speed of the Fibre Channel LTO-1 drive, it is recommended that a maximum of two Fibre Channel LTO-1 drives be connected on one arbitrated loop.
8. Troubleshooting Guide This chapter contains best practices for getting the most out of your LTO-1 and LTO-2 tape drives. 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.
Troubleshooting Guide • Troubleshooting Suggestions Clicking on Properties to view the Resources tab. In Unix/Linux systems, you may find information on any currently installed SCSI HBA by viewing the boot log text file. Refer to your operating system documentation for specific information on reviewing your system configuration. After installing the SCSI HBA, reboot the system. Then ensure that the operating system recognizes the HBA and that there are no conflicts with other adapters.
Troubleshooting Guide Troubleshooting Suggestions Computer Boots but Does not Recognize the Tape Drive 1. Reboot the system and check whether the SCSI controller is seen at boot up. You should see messages similar to: SCSI Adapter Manufacturer SCSI BOIS xxxxxxx CHA: SCSI ID #, SCSI Device Name SCSI ID #, SCSI Device Name” • If the SCSI Controller is not recognized during system boot, contact Technical Support. • If the SCSI controller is recognized during system boot.
Troubleshooting Guide Troubleshooting Suggestions 6. If these suggestions do not help, the tape drive may be bad and Technical Support should be contacted. Desktop tape drive: 1. Power down system. 2. Power cycle desktop tape drive. 3. Be sure there are no SCSI ID conflict between the tape drive and other SCSI devices. 4. Be sure you are using a proper SCSI cable and proper termination. 5. Check the SCSI cable for bent pins. 6. Try to use SCSI cable from other SCSI controller bus chain if possible. 7.
Troubleshooting Guide Troubleshooting Suggestions You should see output similar to: Detected SCSI tape st0 and scsi0 . . . Problems with Tape Drive and Cartridge 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 illuminated, refer to the procedures for troubleshooting LEDs under “Computer Boots but Does not Recognize the Tape Drive” on page 72 to determine why it is not illuminated. 2.
Troubleshooting Guide Emergency Reset and Emergency Cartridge Eject 4. If the Drive LED flashes, wait for the tape to eject (this may take up to 3 minutes). If the tape ejects, the problem has been resolved. 5. If a message similar to the following appears when the eject button is pushed, use the mt offline command to eject the tape: You cannot eject the cartridge because the tape drive is in use. Wait until the operation is complete before ejecting the cartridge.
Troubleshooting Guide Manually Removing a Cartridge Manually Removing a Cartridge The remainder of this section provides instructions for manually removing a data cartridge from an LTO-1 or LTO-2 drive. You should only perform this procedure if you cannot remove the cartridge by pushing the buttons on the front of the drive or by issuing commands from a host device. This should only be necessary if you must remove a data cartridge prior to returning the drive to Certance.
Troubleshooting Guide Manually Removing a Cartridge Figure 21. Diagram of LTO-1 and LTO-2 Drives with Leader Pin Inside LTO Cartridge (Tape Not Threaded on Take-up Hub) Cartridge is Loaded and Seated If the cartridge is loaded and seated and the leader pin is still inside the cartridge, follow these steps to remove the cartridge. To remove the cartridge you will need a small, flat-blade screwdriver 1. Verify that the leader pin is still inside the cartridge as shown in Figure 21 on page 77.
Troubleshooting Guide Manually Removing a Cartridge Figure 22. LTO-1 and LTO-2 Drive Worm Gear 3. Continue turning the worm gear until the cartridge is sticking out of the unit approximately 17 mm (0.66”). Then carefully pull the cartridge out by hand. 4. After you have removed the cartridge, put the top cover back on the drive; then replace and tighten the screws. 5. Return the drive to Certance. CAUTION: Do NOT use the drive after you have removed a cartridge.
Troubleshooting Guide Manually Removing a Cartridge Cartridge is Loaded and Seated with Tape Threaded If the cartridge is loaded and seated, and the tape is entirely or partially threaded into the drive, follow these steps. To perform these steps you will need a small, flat-blade screwdriver and a 1.5-mm hex wrench. Figure 23 on page 79 shows key components of the drive mechanism that are referred to in the following procedure.
Troubleshooting Guide Manually Removing a Cartridge Figure 24. LTO-1 and LTO-2 Drive Lead Screw (Tape Threaded on Take-up Reel) 2. Replace the drive cover to protect the gear and spooling assemblies. You do not need to replace all the screws. 3. Turn the drive upside down. 4. Insert the 1.5-mm hex wrench through the hole in the bottom plate shown in Figure 25 on page 81. Turn the hex wrench clockwise slowly and smoothly to rewind the tape into the cartridge. This may take some time.
Troubleshooting Guide Manually Removing a Cartridge Figure 25. Underside of LTO-1 and LTO-2 Drives Showing Supply Motor Access Hole 5. When all of the tape has been spooled off of the take-up reel, turn the drive right side up. 6. Rotate the hub to align the slot in the hub with the slot on the drive chassis (see Figure 23 on page 79). 7. Set the drive on its left side. Rotate the load arm until the tape grabber clears the hub. CAUTION: Be especially careful not to touch the tape head assembly.
Troubleshooting Guide Manually Removing a Cartridge Figure 26. LTO-1 and LTO-2 drives Showing the Tape Grabber Near the Cartridge 10. When the leader pin and the tape grabber reach the cartridge, gently push the grabber toward the front of the cartridge. Use the grabber to push the leader pin gently into the cartridge until it seats in place (you should hear a click). 11. Using a flat-blade screwdriver, pivot the white lower track toward the drive bezel to disengage the leader pin. 12.
Troubleshooting Guide Manually Removing a Cartridge Figure 27. LTO-1 and LTO-2 Drive Worm Gear 14. Continue turning the worm gear until the cartridge is sticking out of the unit approximately 17 mm (0.66”). Then carefully pull the cartridge out by hand. 15. After you have removed the cartridge, put the top cover back on the drive; then replace and tighten the screws. 16. Return the drive to Certance. CAUTION: Do NOT use the drive after you have removed a cartridge.
Troubleshooting Guide Manually Removing a Cartridge Problems During Backup/Restore Operations Backup Failures A Backup failure can be caused by various reasons. The LTO-1 and LTO-2 tape drives support the TapeAlert standard. The following troubleshooting steps start when software logs a TapeAlert message. You can view the TapeAlert message either on the main console screen or in the backup software’s log file. There may be more than one TapeAlert message per backup failure event. 1.
Troubleshooting Guide Manually Removing a Cartridge 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. There may be more than one TapeAlert message per backup failure event. 1. The TapeAlert message or backup log shows, “You are trying to write to a write-protected cartridge. Remove the write-protection or use another tape.
Troubleshooting Guide Manually Removing a Cartridge If the tape did not 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 cassette and receive the message: “The last cleaning cartridge used in the tape drive has worn out: 1. Discard the worn out cleaning cartridge. 2. Wait for the current operation to finish. 3. Then use a new cleaning cartridge.
Troubleshooting Guide Manually Removing a Cartridge Slow Backups There are many factors that can make backups appear to be “slow.” To achieve the highest possible transfer rate, the LTO-1 or LTO-2 tape drive MUST be attached to a Low 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.
Index A AIX 4.
connecting a serial cable 26 installing the LTO driver 27 mounting instructions 24 overview 23 Installing the LTO driver desktop drives 30 internal drives 22 internal Fibre Channel LTO-1 drive 27 Intelligent data compression 43 Interfaces Fibre Channel 66, 69 parallel SCSI 65, 68 Internal drives checking SCSI termination 20 configuring 17 connecting a power cable 22 connecting a SCSI cable 20 connecting a serial cable 21 guidelines and cautions 15 installation instructions 16 installing the LTO driver 22 mo
internal drives 18 Track layout 38 Troubleshooting 71 backup/restore problems 84 Computer boots but does not recognize tape drive 72 computer will not boot 71 slow backups 87 tape drive not recognized by operating system or application 73 tape drives and cartridges 74 tape will not eject from drive 74 tapeAlert messages 85 Typical system configurations 68 Fibre Channel interface 69 parallel SCSI interface 68 U Unix settings DEC/Compaq Unix 56 SCO Open Server 5.0.x 60 Sun (Solaris 2.4, 2.5, 2.
