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Tandberg Data DAT72 and DAT160 SCSI tape drives user guide

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1. Do not use swabs or other means of cleaning the heads The cleaning cartridge uses a special tape to clean the tape heads A cleaning cartridge can only be used 50 times or as instructed on the cartridge packaging Always place a check mark in a box each time you use the cartridge to clean the drive Replace the cleaning cartridge when all the boxes are checked New cleaning cartridges are available from your manufacturer August 2009 41 Chapter 6 Use the correct media 1 Insert a cleaning cartridge into the drive The tape drive automatically loads the cartridge and cleans the heads At the end of the cleaning cycle the drive ejects the cartridge The cleaning cycle takes approximately 30 60 seconds If the cleaning cartridge is not ejected it has probably expired In this case press the Eject button discard the cleaning cartridge and repeat the operation with a new one 2 Remove the cleaning cartridge from the drive The drive s TapeAlert feature will send a message to your backup application when the tape heads need cleaning or a cleaning cartridge has expired Handling cartridges Do not touch the tape media Do not attempt to clean the tape path or tape guides inside the cartridge Do not leave cartridges in excessively dry or humid conditions Do not leave cartridges in direct sunlight or in places where magnetic fields are present for example under telephones next to monitors or near transformers
2. Do not drop cartridges or handle them roughly Do not stick more than one label onto the cartridge label area extra labels can cause the cartridges to jam in the drive Stick labels onto the label area only See the insert included with the tape cartridge for storage conditions Getting the most out of cartridges and drives e Use mostly the matching media type DAT 160 media for DAT 160 DAT 72 media for DAT 72 e Use media for the recommended number of times DAT 160 DAT 72 100 full backups Overuse of the tape will cause it to degrade and possibly shed tape debris in the drive Too many new tapes can also cause wear of the drive as they are rougher than used ones Do not verify DDS does read after write checking automatically Do not overload the server during backups Maximize the transfer rate run overnight with no other processes and use incremental backups if convenient Do not overuse your tape drive it is designed for approximately three hours of tape pulling per day not constant usage and clean the drive regularly See Cleaning cartridges on page 41 42 DAT SCSI Tape Drives 1018931 August 2009 Getting the most out of cartridges and drives If you want to bulk erase cartridges this should be done in a controlled environment You need to make sure there are no other cartridges with sensitive information on them anywhere near the bulk eraser when in use All data will be lost on car
3. If your computer already has devices connected to the SCSI bus you will need to know their IDs to avoid any conflict with the new tape drive Here are some methods of finding out the information e Most computers display a list of SCSI devices and IDs during the boot up process This usually scrolls past very fast If you press the Pause key you should be able to halt the scrolling and view the list On Windows systems you can use Device Manager If you have Novell NetWare installed use its LIST DEVICES command If none of these is available to you try the following sources of information e The details of all installed devices and settings may have been written down and stored with your computer s documentation for new computers this is often done by the supplier e Your HBA s documentation should tell you which settings it uses Look at each device to find out its ID This is usually easy with external devices With internal devices you will probably need the help of the device s documentation to identify the SCSI ID setting which is usually set with jumpers August 2009 51 Chapter 8 SCSI configuration guide Setting the SCSI ID on DAT drives See the relevant chapter of this User Guide for more details Note that host adapters check SCSI IDs only at power on so any changes will not take effect until the host system is power cycled e Oninternal tape drives set the SCSI ID by attaching or removing jumpers a
4. The problem could lie with the host or the software Consult the computer s operating manuals the software manual or seek help from a service engineer Problems with cartridges DAT SCSI Tape Drives If you experience any problems using branded cartridges check 1018931 Problems with cartridges The cartridge case is intact and that it contains no splits cracks or damage The cartridge has been stored at the correct temperature and humidity This prevents condensation See the insert included with the tape cart ridge for storage conditions e The write protect switch is fully operational It should move from side to side with a positive click http Awww tandbergdata com for more detailed troubleshooting informa tion The cartridge is jammed If the cartridge is jammed or the backup application is unable to eject it you can force eject the cartridge Once the cartridge is successfully ejected it is good practice to upgrade the firmware If the failure occurs regularly contact customer service via http www tandbergdata com 1 Either press and hold the Eject button on the front of the tape drive for at least 15 seconds Or press the Eject button three times within 5 minutes 2 Wait for the cartridge to be ejected The drive waits until 35 seconds have passed from the time of the first press to give the normal eject procedure a chance to proceed After this period it immediately releases the tape an
5. 52 DAT SCSI Tape Drives 1018931 SCSI termination Figure 8 1 SCSI termination in internal drives As long as this terminator is attached you do not need to take any further action However if you have other devices attached to the cable make sure that they have termination removed or disabled Note If you have an internal and external device attached to the same SCSI bus the HBA will be in the middle of the cable and thus its termination must be disabled See the host bus adapter s documentation for details of how to do this External drives All DAT external tape drives are supplied with the appropriate cable and LVD terminators Make sure the terminator is firmly attached to the SCSI OUT connector on the rear of the device when you install it Always use the supplied LVD terminator for proper operation August 2009 53 Chapter 8 SCSI configuration guide Figure 8 2 SCSI termination in external drives If you have more than one device on the SCSI bus daisy chain them by connecting a cable from the SCSI OUT connector on the first device to the SCSI IN connector on the second device and make sure that the second device is terminated Always use an LVD rated cable and an LVD rated or multimode terminator Figure 8 3 SCSI termination in daisy chained external drives SCSI cables Cables matter in SCSI systems There are two factors to consider cable length and cable quali
6. another device to check that the connection is working If the power supply is present and all LEDs remain off power cycle or reset the drive If it still fails call for service None This is normal None If the drive is upgrading firmware do not reset or power cycle it If the drive is cleaning the cleaning cartridge will eject on completion The cleaning cycle can take up to 5 minutes to complete Load the DDS cleaning cartridge See Cleaning cartridges on page 41 for supported cartridges and instructions If the Clean LED is still flashing when you load a new or known good data cartridge after cleaning call for service 33 Chapter 5 Operating your tape drive Table 5 2 LED sequences for DAT 160 continued LED Sequence Action required Unload the tape cartridge Make sure that you are using the correct format cartridge See Use the correct The drive media on page 39 rer Reload the cartridge If the Tape LED or the tape still flashes or starts flashing during the just ejected is next backup load a new or known faulty good cartridge If the Tape LED is now off discard the suspect tape cartridge If it is still on call for service Tape FLASHES The drive Load a new cartridge If the error mechanism persists power cycle or reset the drive has detected If the Drive LED remains on call for an error service Drive FLASHES There is a Drive Tape and firmware Read
7. discarded 35 Chapter 5 Operating your tape drive Loading and unloading cartridges Inserting cartridges 1 Insert a cartridge into the slot on the front panel As the cartridge is inserted the drive takes it and performs a load sequence Note The illustration shows a DAT 160 cartridge These cartridges are wider than earlier format DDS cartridges and can only be used with DAT 160 tape drives See Data cartridges on page 39 for more information about tape drive and cartridge compatibility 1 cartridge slot 2 arrow indicates leading direc tion Figure 5 3 Inserting a data cartridge into a DAT 160 external drive 2 DAT 160 tape drives The Ready light flashes green while the drive performs its load sequence When the cartridge is loaded the Ready light shows steady green DAT 72 tpe drives The Tape light flashes green while the drive performs its load sequence When the cartridge is loaded the Tape light shows steady green 36 DAT SCSI Tape Drives 1018931 Removing power from the drive Removing cartridges Caution Never try to remove a cartridge before it is fully A ejected 1 Press the Eject button on the front panel 1 eject button Figure 5 4 Ejecting a cartridge from an external drive 2 The drive completes any task it is currently performing winds the tape to the beginning and ejects the cartridge The sequence will take about 25 seconds for a write enabled cart
8. of DAT 160 tape drive 1 Clean LED 3 Eject button 2 Tape LED Figure 1 2 Front view of DAT 72 tape drive Which operating systems are supported 12 DAT SCSI Tape Drives 1018931 How do connect the drive to my server DAT tape drives can be connected to servers running under Windows Linux and other major operating systems Please visit the support pages at http www tandbergdata com for the most recent information about the operating system versions that are supported How do I connect the drive to my server The following guidelines apply e For optimum performance the drive should be the only device on the SCSI bus e Always terminate the SCSI bus Do not attach the drive to the same SCSI bus as your disk drive or to a RAID controller unless you are connecting to a server with a Smart Array 6i RAID controller You will need a properly installed and configured SCSI host bus adapter HBA or a built in SCSI controller on your server and a suitably rated SCSI cable Note Please visit the support pages at http www tandbergdata com to ensure that you are connecting to a supported HBA running the recommended firmware version Internal drives The tape drive is installed into a spare industry standard 51 inch drive bay in your server and is attached to the SCSI bus of the host server Use an LVDS compatible ribbon cable to connect the tape drive to a spare 68 pin high density HD wide SCSI c
9. 2 Change the tape drive s SCSI ID if necessary The SCSI ID is set using jumpers on a set of pins at the rear of the drive as shown in figure 3 Use tweezers or small pliers to move the jumpers to the pattern corresponding to the ID you want Do not remove the TP jumper It should always be set Note Spare jumpers will be attached to the drive The drive is supplied with compression enabled It can be disabled by removing the compression jumper but this is not generally recommended Prepare mounting bay You need one industry standard 54 inch bay in which to install the DAT tape drive tape drive ensure that the server is disconnected from the mains power supply while you install the drive Warning To avoid personal injury or damage to the server or 18 DAT SCSI Tape Drives 1018931 Attach mounting hardware Caution Static electricity can damage electronic components A Always wear an antistatic wriststrap if one is available If not after you have disconnected power from the server and removed the cover touch a bare metal part of the chassis Similarly touch a bare metal part of the drive before installing it 1 Refer to your server documentation for detailed instructions and assemble the necessary tools and materials 2 Perform anormal system shutdown and turn off the server and any connected peripherals 3 Remove the cover and access panel from the server as detailed in your server s documentation A
10. 2 Installing an internal DAT tape drive Notes 24 DAT SCSI Tape Drives 1018931 Installing an external DAT tape drive In this chapter e Check the drive s SCSI ID on page 25 e Connect the power cord on page 28 Please refer to Installing an internal DAT tape drive on page 17 if you are installing an internal DAT tape drive Important information before you start An external DAT drive will operate using any voltage in the range 100 240 volts 0 7 A 50 60 Hz No adjustment is needed A power cord and a SCSI cable are provided with your DAT tape drive Check the drive s SCSI ID Your DAT drive is shipped with a default SCSI ID of 3 Each device on the SCSI bus must have a unique SCSI ID number The drive can be assigned any unused ID between 0 and 15 Do not use SCSI ID 7 which is reserved for the SCSI controller SCSI ID 0 is typically assigned to the boot disk and should also not be used unless the tape drive is on a dedicated SCSI bus August 2009 Chapter 3 Installing an external DAT tape drive Figure 3 1 Setting the SCSI ID 1 Determine whether you need to change the SCSI ID from the default of 3 2 Change the tape drive s SCSI ID if necessary Use a small screwdriver or a ball point pen to press the indented SCSI ID selector buttons on the rear panel see Figure 3 2 on page 27 until the required value is displayed Do not use a pencil because small bits of graphite could c
11. CSI ID vu nsedasvreeneenrunetikuvkvenuinraee 26 Connecting the SCSI cable rnanrrnnnnnvnnnnvrnnnnnrnnnnnrnnnnnrnnnnnnnnnn 27 Connecting the power cable rrrrnannrnnnorrvnnnnrrnnrnvrnnnnrrnnenneneenn 28 Front panel DAT 160 tape drive mmnnnvnnrnrrrnnnnvnnnnrrnnnnnrnnnennn 32 Front panel DAT 72 tape drive rrrnannnvnnevrrvnnnnvnnrrrrnnnnnrnnnennn 32 Inserting a data cartridge into a DAT 160 external AMVO ude 36 Ejecting a cartridge from an external drive aseene 37 Write protecting a cartridge mrrnnnrrnnnnonnrrrnnnnrnnrrnnnnennnrrnnrnennn 41 SCSI termination in internal drives mearrrnannrrnnrnvrrrnnrrnnnnnnnnnr 53 SCSI termination in external drives rarrrrrnnrrnnrnvrnrnnrrnnnnnnnnrr 54 Figure 8 3 SCSI termination in daisy chained external drives 54 DAT SCSI Tape Drives 1018931 Table 1 Table 1 1 Table 1 2 Table 5 1 Table 5 2 Table 6 1 Table 6 2 August 2009 Tables Document CONVENTIONS urrnnnvrnnnnnnnrrrnnnnrnnrrnnnnnnnnrrnnsrrnnrrrnnsennn X Supported SCSI bus types mmrrrrrnannrvnrerrrrnnnrnnnrnrrennnrnnnennrnnen 14 Power requirements r rnnvnnnnnnnvnonnnnnnnvnnnnnnnnnvnennnnnnvnneennnnnenee 15 LED sequences for DAT 160 rrrnnrrnnnnnnnrrrnnnnnnnrrnnnrennnrrnnrrennnr 33 LED sequences for DAT 160 continued rnnrrrrrrrrnnvrrrrrrnnnnn 34 Data cartridge Compatibility rrrnnrrrnnnnnnnrrnnnnnnnrrrnnnnrnnrrnnnnnn 40 Cleaning car
12. CSI cable 4 Attach the HD connection on the SCSI cable to one of the SCSI connectors on the rear panel of the tape drive and secure it by tightening the screws 5 Connect the LVD terminator to the drive s other SCSI connector and tighten the screws to secure it Why does the tape drive need a terminator Terminators are essential as they provide the correct voltages on the SCSI bus and prevent unwanted signal reflections from interfering with data transfers The rule is There must be termination at both physical ends of the bus and only at the ends Normally the HBA forms one end of the SCSI bus and provides termination You therefore need to ensure that the other end of the bus is terminated If the tape drive is at the end of the SCSI bus the terminator must be attached to the tape drive If you want to attach additional devices to the SCSI bus after the tape drive you will need to remove the SCSI terminator and attach the next device to August 2009 27 Chapter 3 Installing an external DAT tape drive this SCSI connector Make sure that you attach the terminator to the last device in the chain Always use an LVD terminator supplied with the tape drive or a multimode terminator See SCS termination on page 52 for more information about SCSI cables and termination Connect the power cord An external DAT drive will operate using any voltage in the range 100 240 volts 0 7 A 50 60 Hz No adjustment is ne
13. TANDBERG DATA Securing your Information DAT 160 and DAT 72 SCSI Tape Drive User Guide Part Number 1018931 August 2009 www tandbergdata com Copyright Copyright 2008 Tandberg Data Corporation All rights reserved This item and the information contained herein are the property of Tandberg Data Corporation No part of this document may be reproduced transmitted transcribed stored in a retrieval system or translated into any language or computer language in any form or by any means electronic mechanical magnetic optical chemical manual or otherwise without the express written permission of Tandberg Data Corporation 2108 55th Street Boulder Colorado 80301 DISCLAIMER Tandberg Data Corporation makes no representation or warranties with respect to the contents of this document and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose Further Tandberg Data Corporation reserves the right to revise this publication without obligation of Tandberg Data Corporation to notify any person or organization of such revision or changes TRADEMARK NOTICES Tandberg Data Corporation trademarks Tandberg Data Exabyte the Exabyte Logo EZ17 M2 SmartClean VXA and VXAtape are registered trademarks MammothTape is a trademark SupportSuite is a service mark Other trademarks All other product names are trademarks or registered trademarks of their respective owners Note
14. The most current information about this product is available at Tandberg Data s web site http www tandbergdata com Part Number 1018931 2 DAT SCSI Tape Drives 1018931 Contents About this guide Luse IX I te ded audiente sesiis rnea REE E EEE KEE esata EEE IX Technical SUpport sorsi Ta a esc see E IX Product warranties EE IX Document conventions and symbols cceceeeeeeeseeeeeeeeeeeeeeesseeeeeeeeeeeee IX 1 Before you start Limet beeisbebnspndrsnsnnedannansnsedadee 11 DAT tape drive models x csccdccessoisctacnrsoaciesanstenttsvadbeceaeabandyntacebeateueas ERE ARE 11 Which operating systems are supported rurnnrrnnnrnnnvnnnrnvnrrnnnnennrrnnnennnnnnn 12 How do I connect the drive to my server mmrsrrrnnrrrrrrrnnennrrnnnennnvnnnerrnnrnnerennn 13 Internal drives sei dctisaswesccn ce cnendilexsdunisemnenvnctanuadundtonsitaanteuersemuntnoaticentaudieend 52 External 0 LE EEE EE mines 13 Why Is the SCSI bus type important 2 mssmenoeirnmenneiseiunrn se 14 What are the mounting requirements for an internal tape drive 14 Power requirements 2 mum nuansseemuinsieisuniaseteiinu eien ae vika 15 BEE EE EE 15 PN 15 2 Installing an internal DAT tape drive nnvvnnnvnnnvnnnnvnnnnnnn 17 Check the drive s SCSI ID rrrnnnnnnnnvnnnnnnnvnnnnnnvnnnnnnrnrnenennnnnrnnensnnennnnnnnnnnnnern 17 Prepare mounting bay asccessiiateveeabes ganseeetcetecenadencacceuc ate esaeectaua ie seigt 18 Atta
15. accept the cartridge If it does the original drive may be faulty A8 DAT SCSI Tape Drives 1018931 SCSI configuration guide In this chapter SCSI in DAT devices on page 49 SCSI terminology on page 50 Setting up the SCSI bus on page 50 e Identifying SCSI IDs on page 51 Setting the SCSI ID on DAT drives on page 52 e SCSI termination on page 52 e SCSI cables on page 54 SCSI in DAT devices DAT tape drives are Ultra160 SCSI 2 compatible devices They are designed to operate on a low voltage differential LVD SCSI interface They are not compatible with high voltage differential HVD SCSI devices The drives support a burst transfer rate of 160 MB sec To benefit from this level of performance it is important to ensure that the drives are connected to a SCSI bus of a similar or higher specification This means that you need e An Ultra160 or Ultra320 SCSI host bus adapter Ultra2 SCSI is also supported but performance may be degraded if there are several devices on the SCSI bus e LVD rated SCSI cabling and terminators The LVD interface enables the data to be transferred at the drive s maximum rate and provides a max imum cable length of 12 meters We also recommend that the tape drive is connected to a dedicated host bus adapter If you need to connect multiple devices to the bus performance may be restricted if there are too many 3 or more devices on the bus th
16. ape drive 4 Ifthe drive is the last device on the SCSI chain make sure that the SCSI cable is terminated correctly 1 and 7 terminated SCSI cable 5 server s power supply 2 and 4 power cable 6 SCSI controller 3 tape drive Figure 2 4 Connecting power and SCSI cables Where should the SCSI terminator be Termination must be present at two and ONLY two positions on the SCSI bus at the beginning of the SCSI bus and at the end of the SCSI bus Termination is normally enabled by default on the HBA and most internal SCSI cables have a terminator attached This will usually be a small rectangular block of plastic attached to the cable end and marked SCSI Terminator 29 DAT SCSI Tape Drives 1018931 Secure the drive Therefore assuming the HBA is the first device on the bus you should check that the second terminator is placed after the last device as shown in Figure 2 4 on page 22 item 1 Secure the drive Secure the drive as described in your server documentation Ensure blanking plates are in place over empty bays and replace the cover on the server fo Lo ole oter ait co Gee 1 plastic rail 2 server latch push down to lock the tape drive into position Figure 2 5 Securing drive example 1 mounting hardware used 1 M3 screws supplied with tape drive Figure 2 6 Securing drive example 2 no mounting hardware used August 2009 23 Chapter
17. at are accessed simultaneously Connecting devices of lower SCSI specification such as Ultra2 or Ultra SCSI may also restrict performance to your tape drive Using Single Ended 8 Bit SCSI devices on the same bus August 2009 49 Chapter 8 SCSI configuration guide is not recommended as performance will be severely impacted and complicated bus configuration is required to overcome bus termination issues Make sure that the last device on the SCSI bus is terminated We recommend that you do not attach the tape drive to the same SCSI bus as the disk drive See SCS termination on page 52 for more information about terminating DAT tape drives SCSI terminology SCSI is a bus interface all the devices are connected to a single cable some of this may be inside and some outside the host computer s case The connection to the host itself is known as the Host Bus Adapter HBA You can have several HBAs in a single computer each with its own SCSI bus this is acommon arrangement in high performance servers Some host bus adapters such as the LSI Logic LSI22320 R have more than one SCSI bus available on a single card Various terms are used when describing SCSI devices These terms relate to the factors that affect performance and cable length e The speed of the data bus which may be Fast Ultra Ultra2 Ultra3 Ul tra160 or Ultra320 e The width of the data bus which may be Narrow or Wide 8 Bit or 16 Bit e The vol
18. atible old tape formats are more abrasive than later generations and using older tape formats can reduce the life expectancy of the tape drive The compatibility between drive models and cartridges is summarized in Table 6 1 on page 40 Shaded boxes show the recommended media for each tape drive Capacities assume a compression ration of 2 1 Table 6 1 Data cartridge compatibility not sup not sup ___ read write Capacity assumes 2 1 compression DAT 72 not Sup read write read write 72 GB ner Suppor ported ted Write protecting cartridges If you want to protect the data on a cartridge from being altered or overwritten you can write protect the cartridge Always remove the cartridge from the tape drive before you change the write protection To write protect a cartridge slide the tab on the rear of the cartridge so that the recognition hole is open e To write enable a cartridge slide the tab back so that the hole is closed Write protection will not protect your cartridges against magnets or bulk erasers 40 DAT SCSI Tape Drives 1018931 Cleaning cartridges 1 tab closed cartridge write en abled 2 tab open cartridge write protec ted Figure 6 1 Write protecting a cartridge Cleaning cartridges Table 6 2 Cleaning cartridge compatibility Cleaning cartridge required You must use a DAT 160 cleaning cart ridge You must use a standard DDS cleaning cartridge
19. ch mounting hardware ssucdeicaiaseecescahuartecasenceunnvia tebemnadeattensanwiianaededeasaaeee 19 Astal er 20 Attach power and SCSI cables rrrnnrnnnnnnrnrrnnnnnnnnvnnnnnnnvnnnnrnnnnnnnnnnnrannnnnnnnene 21 Where should the SCSI terminator be mmrrrrrnrrrnrrnnnnrrrrrrnnnnnvrrnnnnnnnnnn 22 Secure the ANG Larssen e RERE aske a E a a E R 23 3 Installing an external DAT tape drive ssnsssnssssnnnnnnnnnnnns 25 Important information before you Start rrrnrrrnnnrrrrrrnnnrnnrrnnnnnnnrnnnrrrnrrnnnrrennn 25 Check the drive s SCSI ID Seay erene eeeeme er ee eee eee ee ene ee ee eee 25 Connect the SCSI cable vis caienuetecscreinccisaanieileiouriuiuassenteetioreclde onientoieeeereneneces 26 Why does the tape drive need a terminator arnnvrnnnrnnnrrnnnnnrrrrnnnennnnn 27 Connect the power cord srssamaedn ceasansindblenieieebomeenenmssrndanses 28 4 Verify installation ssssssssssnnnnsnnnnnnnnnunnnnnnnnnnnnnnnnnnnnnnnn nnna 29 5 Operating your tape drive ssssssssssnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 31 August 2009 Front PANEL Lasasersuasansdmsnvuikneentesnnsjremnitavisemtan d 32 LED sequences eanet 32 LED sequences for the DAT 160 tape drive rrrrnannvrnnnrnnnvnnnrvrnrrnnnernnr 32 LED sequences for the DAT 72 tape drive arrrrnnnannvrnnnnnnnrnnnrnrnrrnnnrennr 34 Loading and unloading cartridges uuimnsesmetmmvmemvbvjevv 36 Inserting cartridges Lu muaesmusnesksummseneemdeeimniendivvaneeid 36 Removi
20. d ejects the cartridge regardless of what operation it was performing It is important that you allow sufficient time for the drive to complete this process If you interrupt it you may damage the media or the tape drive The drive is then reset as though you had turned the power off and then on again You may lose data if you force eject a cartridge The tape may also become unreadable because an EOD End of Data mark may not be properly written 3 Ifthe cartridge is still jammed the tape drive has failed Contact customer service The drive will not accept the cartridge or ejects it immediately The cartridge may have been damaged for example dropped or the drive may have a fault If it is a cleaning cartridge it has probably expired and should be discarded immediately For data cartridges 1 Check that the drive has power the power cable is properly connected and the Tape LED is on 2 Check that you are using the correct media for the tape drive see Use the correct media on page 39 August 2009 A7 Chapter 7 Troubleshooting 3 Make sure that you have loaded the cartridge with the correct orientation see Loading and unloading cartridges on page 36 Check for damage to your media and discard it if it is damaged Use a new or known good piece of media and see if it loads If it does the original cartridge is faulty and should be discarded 6 Check if another DAT drive of the same model will
21. dges 36 unloading cartridges 36 37 loading cartridges 36 upgrading firmware drives 37 M media V See cartridges verify installation 29 models supported 11 mounting requirements 18 W write protect 40 O p online 36 operating systems supported 12 operation drives 32 troubleshooting 46 P power off 37 power on button 32 product specification See S SCSI ID default 17 25 software troubleshooting 46 supported operating systems 12 symbols in text X T technical support X text symbols X troubleshooting cartridge ejected 47 cartridges 45 general 46 general procedure 45 installation 45 jammed cartridge 47 LEDs 33 software 46 DAT SCSI Tape Drives 1018931
22. eded To connect your drive to the power supply proceed as follows 1 Make sure that the drive is switched OFF O side down The power switch is on the rear panel 2 Plug the power cable securely into the socket on the rear panel of the drive 3 Plug the other end of the power cable into the power outlet 1 power socket 2 power on off switch Figure 3 3 Connecting the power cable 28 DAT SCSI Tape Drives 1018931 Verify installation Once you have installed the drive hardware check that drivers have been installed correctly and you have the correct version of backup software and verify that the tape drive is functioning properly before you store your valuable data Note Certain backup applications require you to use their own Tape driver instead of the HP Tape driver Switch on the drive and the server 2 The tape drive will run its hardware self test which takes about 5 seconds At the end of the hardware self test DAT 160 drives If self test passes the green Ready LED flashes and then shows steady green If the test fails the Drive Error and Tape Error LEDs flash while the Ready and Clean or Use Cleaning Cartridge LEDs are off This continues until the drive is reset DAT 72 drives If self test passes both front panel lights should be off If a hard error causes the self test to fail the clean light changes to steady amber See Front panel on page 32 for more information about front pa
23. einatteieniecrnienedtie 51 Identifying SCSI IDS ec etieccticccs yes teevs dacedanaalseacsagpsnsvedinn tonidenisdetasevetireraaneccieeeads 51 Setting the SCSI ID on DAT drives rrnnnnnnvnnnrnavnnnnnvnnnnnnnnnnnrnnnnnnnnennennnnennnnne 52 SES ge ge EEE RE RE RE 52 Internal drives aassatennsanutsea ksene nd aanmedbken 52 External drives seen 53 SCSI cable Sie E N E ERE 54 Cable length siran ar EN ede 54 Cable quality ua 55 With internal devices iemsmemsumeemenumeeervinvv sten 55 With external devices Lava aenntde 55 Note on SE and LVD interfaces vassere 56 Lale OX EE 57 DAT SCSI Tape Drives 1018931 Figure 1 1 Figure 1 2 Figure 2 1 Figure 2 2 Figure 2 3 Figure 2 4 Figure 2 5 Figure 2 6 Figure 3 1 Figure 3 2 Figure 3 3 Figure 5 1 Figure 5 2 Figure 5 3 Figure 5 4 Figure 6 1 Figure 8 1 Figure 8 2 August 2009 Figures Front view of DAT 160 tape drive s s 12 Front view of DAT 72 tape drive msrrnnannvnnrrrrrvnnnrnnrrvrrnnnnrnnnennn 12 Checking the SCSI ID reernnrnnannnvnrnnrrnnnnnvnnnnrrnnnnnvnnenrrrnnnnnennn 18 Example attaching mounting SCFEWS rrrrrrnnrrrnnrrrnrrrnnrnnnnenn 20 Installing the tape drive ns sssssrsrsiurirreniiuiinnnnii 21 Connecting power and SCSI cables rrrrrrnnnnnvrrrrrrnnnvvrrerrnnnn 22 Securing drive example 1 mounting hardware used 23 Securing drive example 2 no mounting hardware used 23 Setting the S
24. hapter Front panel on page 32 LED sequences on page 32 Loading and unloading cartridges on page 36 Removing power from the drive on page 37 August 2009 31 Chapter 5 Operating your tape drive Front panel 1 cartridge slot 5 drive LED 2 power LED external drives only 6 ready LED 3 clean LED 7 eject button 4 tape LED Figure 5 1 Front panel DAT 160 tape drive 1 5 4 1 cartridge door 4 tape LED 2 eject button 5 power LED external drives only 3 clean LED Figure 5 2 Front panel DAT 72 tape drive LED sequences 32 DAT SCSI Tape Drives 1018931 LED sequences LED sequences for the DAT 160 tape drive The meaning of different patterns of LEDs is as follows Table 5 1 LED sequences for DAT 160 LED Sequence Action required Ready FLASHES Clean FLASHES August 2009 All LEDs OFF Ready is ON Drive may not have power may be faulty or may have been power cycled or reset during a firmware upgrade The drive is ready for operation The drive is carrying out a normal activity read write clean The drive requires cleaning Make sure the drive is switched on The power on off switch incorporates a green LED If this is not on check the power cable connection and replace the cable if necessary You can use the power cable from your monitor or
25. internal bus with other peripherals that run at Ultra160 speeds it is important that a 68 pin LVD compatible ribbon cable is used Do not connect your tape drive to lower rated SCSI or to narrow SCSI With external devices The cable provided with all DAT external tape drives and autoloaders will attach to a computer with a wide very high density VHD LVDS SCSI connector If your server or host bus adapter is equipped with a high density HD wide SCSI connector you will need to order a 68 pin VHD to HD converter or 68 pin VHD to HD cable August 2009 55 Chapter 8 SCSI configuration guide Note on SE and LVD interfaces SE and LVD define how the signals are transmitted along the cable e With single ended SE SCSI each signal travels over a single wire and each signal s value is determined by comparing the signal to a paired ground wire Signal quality tends to decrease over longer cable lengths or at increased signal speed e With low voltage differential LVD signaling signals travel along two wires and the difference in voltage between the wire pairs determines the signal value This enables faster data rates and longer cabling with less susceptibility to noise than SE signaling and reduced power con sumption If you use LVD SCSI devices on the same bus as single ended devices this will switch the LVD SCSI host adapter into single ended mode and restrict cable length If you connect only LVD SCSI devices the bus wi
26. l DAT tape drive In this chapter e Check the drive s SCSI ID on page 17 Prepare mounting bay on page 18 Attach mounting hardware on page 19 Attach power and SCSI cables on page 21 e Secure the drive on page 23 Please refer to Installing an external DAT tape drive on page 25 if you are installing an external DAT tape drive Check the drive s SCSI ID Your DAT drive is shipped with a default SCSI ID of 3 Each device on the SCSI bus must have an unique SCSI ID number The drive can be assigned any unused ID between 0 and 15 Do not use SCSI ID 7 which is reserved for the SCSI controller SCSI ID 0 is typically assigned to the boot disk and should also not be used unless the tape drive is on a dedicated SCSI bus Caution Static electricity can damage electronic components Always wear an antistatic wriststrap if possible If not to equalize the electromagnetic charges touch a bare metal part of the server such as the back plate before you remove the tape drive from its bag August 2009 17 Chapter 2 Installing an internal DAT tape drive TP NC 8 4 2 1 TPNC 8 4 2 1 TP NC 8 4 2 1 ofo o ojojo OF O o jojojo of 0 JO o jojjo ojo o ojojo ojo o ojojo OF 0 o 0 ojo 3 6 11 DEFAULT Figure 2 1 Checking the SCSI ID 1 Determine whether you need to change the SCSI ID from the default of 3
27. ll operate in low voltage differential mode and Ultra160 speeds will be enabled You can use a combination of Ultra160 and Ultra2 devices Each device will operate at its optimum speed 56 DAT SCSI Tape Drives 1018931 Index A audience B backup software supported 15 buttons Unload 37 C cartridge life 42 cartridges See best use of 42 cleaning 41 compatibility 39 handling 42 inserting 36 jammed 47 loading 36 not accepted 47 power off 37 problems 45 removing 37 unloading 37 write protecting 40 cleaning cartridges 41 compatibility backup software 15 conventions document IX text symbols X D DAT 160 cartridges 39 August 2009 DAT tape drive front view 11 32 LEDs 33 loading 36 models supported 11 powering off 37 unloading 37 default SCSI ID 17 25 document conventions IX drive operating 32 drivers installing 15 unix 16 windows 15 E eject button 37 F firmware upgrading drives 37 front panel drives 32 front view 11 32 H handling cartridges 42 help obtaining IX inserting cartridges 36 installation 45 problems 45 troubleshooting 45 verifying 29 installing drivers 15 internal drive 17 installing internal attach mounting hardware 19 prepare mounting bay 19 secure drive 23 J jammed cartridge 47 57 nha 58 L U LEDs 33 unix at power on 29 drivers 16 loading Unload button 37 cartri
28. mend that you use the installer package supplied by your manufacturer to install the drivers Updates to the drivers may be provided from time to time on http www tandbergdata com We recommend that these are installed after using the installer package On Linux and UNIX operating systems drivers are included with the operating system and should be loaded automatically To upgrade drivers we recommend that you patch to the latest version of the operating system Backup software For optimum performance it is important to use a backup application that is appropriate for your system s configuration In a direct attach configuration where the tape drive is attached to a standalone server you can use backup software that is designed for a single server environment In network configurations you will need backup software that supports enterprise environments Further details about suitable products can be found on http www tandbergdata com It is important to check for software compatibility and install any recommended upgrades Note Certain backup applications require you to use their own Tape driver instead of the manufacturer s Tape driver August 2009 15 Chapter 1 Before you start Note The NT backup application is compatible with DAT tape drives but the user must always choose 4 mm tape even when using 8 mm tape with a Tandberg Data DAT 160 tape drive 16 DAT SCSI Tape Drives 1018931 Installing an interna
29. nel lights 3 Make sure the correct drivers are installed e Installing drivers Windows We recommend that you download the latest driver from http www tandbergdata com before installation If the Windows Found New Hardware wizard runs follow the on screen instructions to install drivers from the download location Installing drivers other operating systems Drivers are included with the operating system and should be loaded automatically To upgrade drivers we recommend that you patch to the latest version of the operating system August 2009 29 Chapter 4 Verify installation 4 Verify that the tape drive installation was successful If you encounter a problem during this verification procedure turn to Troubleshooting on page 45 for help in diagnosing and fixing the problem 5 For all operating systems ensure that you have downloaded any upgrades necessary for your backup application Check hitp www tandbergdata com for software compatibility and install any recommended upgrades 6 Carry out a backup and restore test to check that the drive can write data to tape Use a blank cartridge Native backup applications can be used to check basic tape drive operation but they may not support all the advanced features of your tape drive We recommend that you upgrade your software application before running this test 30 DAT SCSI Tape Drives 1018931 Operating your tape drive In this c
30. ng cartridges xe died eecdenet te cacnsssiinds dee stannniaida cdnevteaiinad ded ntedaeradduadaece 37 Removing power from the drive cesicciscectassctstinnasticesneesennectarteennieeaneccanncaieeene 37 6 Use the correct media rnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnr 39 Data cartridges Sverres 39 DAT 160 tape drives and DAT 160 cartridges rrnnnvrnnnnnnnrnnnrnnnrrnnnrnnnr 39 Compatibility oes occtnas RE ERT 39 Write protecting cartridges vucsusmemessesmnmnsmemue m net se nenene 40 Cleaning cartridges RE ET EE RE ee ne ee ee eee 41 Handling cartridges i cacatcriccenzsnstnectenacisnnestornwideteteseottadeetenennsennetenndnedegitdeeeldianne 42 Getting the most out of cartridges and drives rrrnnnnnnnvrnnnrnnrrrnnnrrrrrrnnrnnnnnnn 42 7 Troubleshooting s nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnnnr 45 General Procedur ssininrnrns a a NE E aaa ane datt 45 Problems with GNU Sac ctocss tcc ede care andthe see eee 46 The cartridge is jammed 2 0 5ccd escsscerteusaieciencassccabocstenceamtahadihesertsadaniees 47 The drive will not accept the cartridge or ejects it immediately 47 8 SCSI configuration guide vrrnvvnnvvnnnvnnnnnnnnnnnnnnnnnnnnnnnnnennr 49 SCSI in DAT devices sans indseem de dead edandecascadaneecsceteasacteaxtcaandend 49 SCSI terminology secretiei R TE E EAEN 50 Setting up the SCSI bus eee 50 SCSI ID numbers ate tezncctceeccaceriega cen ietcattavanincesdenatdtnadge ampdatet
31. onnector on the host server The cable must be terminated External drives A 68 pin wide VHD to HD SCSI cable is required to attach the tape drive to the host server If your server has an HD SCSI port you must either purchase and install a VHD to HD adapter or use an HD to HD cable please visit the support pages at http www tandbergdata com for recommended products August 2009 1 3 Chapter 1 Before you start Why is the SCSI bus type important The SCSI bus type determines the speed at which data can be transferred between devices on the bus and the maximum length of cable that can be used The drives support a burst transfer rate of 160 MB sec To benefit from this level of performance it is important to ensure that the drives are connected to a SCSI bus of a similar or higher specification This means that you need An Ultra160 or Ultra320 SCSI bus If you attach the drive to a lower specification SCSI bus it will still work but data will not be transferred as quickly e LVD rated SCSI cabling and terminators The LVD interface enables the data to be transferred at the drive s maximum rate Note The drives are not compatible with high voltage differential HVD SCSI devices Table 1 1 Supported SCSI bus types SCSI Bus Type Supported Ultra160 LVD Ul tra320 LVD Yes These are recommended configurations Ultra2 LVD Ultra Yes These are supported but performance may Wide LVD be impaired Ultra wide
32. ontaminate the drive Note The computer and the tape drive SCSI IDs are only checked at power on To change the SCSI ID after installation power down both the computer and the tape drive change the drive s SCSI ID power up the tape drive and then power up the computer Connect the SCSI cable A wide VHD to HD SCSI cable and LVD terminator are required to connect your DAT tape drive to a VHD SCSI port on an LVD SCSI bus If your server has an HD SCSI port you must either purchase and install a VHD to HD adapter or use an HD to HD cable Please visit the support pages at http www tandbergdata com for recommended products Caution To avoid damaging the computer or tape drive A ensure that both are powered off while you attach the SCSI cable DAT SCSI Tape Drives 1018931 26 Connect the SCSI cable 1 Make sure you are connecting to a recommended SCSI bus type See Why is the SCSI bus type important on page 14 Do not connect the tape drive to the same bus as a RAID controller For optimum performance we recommend that your DAT drive is installed on a dedicated SCSI bus If it is not do not connect it to the same bus as your disk drive 2 Perform anormal system shutdown and turn off the server and any connected peripherals 3 Attach the VHD connection on the SCSI cable to the server s external SCSI connector and secure it by tightening the screws 1 LVD SCSI terminator Figure 3 2 Connecting the S
33. ould result in damage to equipment or data Important Provides clarifying information or specific instructions Cross reference links and e mail addresses Keys that are pressed website addresses Text typed into a GUI element such as a box GUI elements that are clicked or selected such as menu and list items buttons tabs and check boxes Text emphasis File and directory names System output Code Commands their arguments and argu ment values Code variables Command variables Monospace bold text Emphasized monospace text X DAT SCSI Tape Drives 1018931 Before you start In this chapter DAT tape drive models on page 11 Which operating systems are supported on page 12 How do connect the drive to my server on page 13 Why is the SCSI bus type important on page 14 What are the mounting requirements for an internal tape drive on page 14 Drivers on page 15 Backup software on page 15 DAT tape drive models This guide describes how to install and operate the following Tandberg Data DAT SCSI tape drive models Tandberg Data DAT 160 internal tape drive Tandberg Data DAT 72 internal tape drive For a detailed product specification please visit the support pages at http www tandbergdata com August 2009 Chapter 1 Before you start 1 Clean LED 4 Ready LED 2 Tape LED 5 Eject button 3 Drive LED Figure 1 1 Front view
34. ridge and 10 seconds for a write protected cartridge Removing power from the drive To ensure reliable operation do not remove power from the drive during read write fast search load and unload activities August 2009 37 Chapter 5 Operating your tape drive Notes 38 DAT SCSI Tape Drives 1018931 Use the correct media For best performance we recommend branded media as recommended by your manufacturer In this chapter Data cartridges on page 39 e Write protecting cartridges on page 40 e Cleaning cartridges on page 41 e Handling cartridges on page 42 e Getting the most out of cartridges and drives on page 42 Data cartridges DAT 160 tape drives and DAT 160 cartridges DAT 160 cartridges can only be used with DAT 160 tape drives they are wider than earlier formats and will not fit into earlier tape drive models DAT 160 cartridges provide optimum performance and maximum capacity for DAT 160 tape drives DAT 160 tape drives are also backwards compatible with some earlier formats see Table 6 1 on page 40 Compatibility For optimum performance and storage capacity use tape cartridges that match your drive s format and normally use only one cartridge per day Ideally use e DAT 160 cartridges with DAT 160 tape drives August 2009 39 Chapter 6 Use the correct media e DAT 72 cartridges with DAT 72 tape drives Although DDS tape drives are fully backward comp
35. rives may be able to read earlier format media see Table 6 1 on page 40 the media itself is not backward compatible e DAT 160 media can only be used with DAT 160 drives e DAT 72 media can be used with DAT 160 and DAT 72 drives 4 Has the cartridge been write protected see Write protecting cartridges on page 40 5 Clean the tape heads with the cleaning cartridge see Cleaning cartridges on page 41 Be sure to use the correct cleaning cartridge e DAT 160 cleaning cartridges with DAT 160 tape drives e Standard DDS cleaning cartridges with DAT 72 tape drives Try the operation again If the problem still occurs try using a different cartridge If the problem is still there the problem probably lies with the drive or the host computer Has the drive been moved recently Have any cables been disconnected and reconnected Has the environment changed unusually hot cold damp or dry Has there been dust or dirt near the drive Have reasonable precautions against static been taken The problem could lie with the drive 1 Check the cables and connectors 2 Clean the tape heads with the cleaning cartridge 3 If the problem persists check the environmental conditions against the specified limits please visit the support pages at htip www tandbergdata com Perhaps move the drive to a more suitable site Has a new operating system been installed in the host computer Has new backup software been installed
36. s available If not after you have disconnected power from the server and removed the cover touch a bare metal part of the chassis Similarly touch a bare metal part of the drive before installing it Slide the tape drive into the open bay aligning the tray or rails with the slots in the bay 20 DAT SCSI Tape Drives 1018931 Attach power and SCSI cables W Ul dii ili ih Figure 2 3 Installing the tape drive The illustration shows a tape drive that has mounting rails fitted If your server does not use mounting hardware check that the holes in the chassis are aligned with the holes in the side of the tape drive Do not secure the drive at this point because you may have to move the drive to get the cables into place Attach power and SCSI cables To support the high performance of the tape drive it is important that you connect to a recommended SCSI bus and use a suitably rated SCSI cable see Why is the SCSI bus type important on page 14 1 Check your server or HBA documentation to ensure that the SCSI bus and cabling supports up to Ultra160 bus speeds 2 Attach a spare power cable from the server s internal power supply to the power connector as shown in Figure 2 4 on page 22 3 Attach a spare connector on the server s built in SCSI bus or HBA s SCSI ribbon cable to the SCSI connector of the drive as shown in Figure 2 4 on page 22 August 2009 2 1 Chapter 2 Installing an internal DAT t
37. s you work inside the server you may have to disconnect other signal cables or power cables from other devices to maneuver the new drive into place If you have to do this make a note of their position and connections so you can put them back correctly later 4 Remove the filler panel from a spare 5 4 inch bay of your server as described in your server s documentation With some servers you may also need to remove the half height device divider Keep any screws for use in Secure the drive on page 23 5 You are now ready to install your tape drive Attach mounting hardware If your server requires special rails or other hardware to install the tape drive mount them on the tape drive now f your server does not require special mounting hardware ignore this section Different models of server require different mounting methods Please check your server documentation to ascertain the correct method of mounting and to check whether mounting hardware is provided with the server or must be purchased separately Note If mounting hardware is supplied with your tape drive it may not be exactly the same as shown in the illustrations August 2009 19 Chapter 2 Installing an internal DAT tape drive 1 M3 mounting screws 2 M3 offset mounting screws Figure 2 2 Example attaching mounting screws Install drive Caution Static electricity can damage electronic components A Always wear an antistatic wriststrap if one i
38. single Yes But this is not a recommended configuration ended as it will restrict performance Yes But this is not recommended as it will severely restrict performance and you will need a suitable cable or adapter High Voltage Differ No The drive will not work and you may damage ential the drive or controller Ultra narrow single ended What are the mounting requirements for an internal tape drive You need one industry standard 5 inch half height bay in which to install the Tandberg Data DAT tape drive For many servers no mounting tray or rails are required Devices simply slide into the server s chassis and are fixed with screws Other servers have built in trays or rails Some servers use non standard mounting rails and do not include spares If this is the case with your system you will have to order these accessories from the server manufacturer before you can install the tape drive 14 DAT SCSI Tape Drives 1018931 Power requirements Power requirements Power requirements are Table 1 2 Power requirements Voltage Typical Current Maximum Current DAT 160 DAT 72 DAT 160 DAT 72 5V 1 54 A 1 61 A 0 8 A Drivers One driver is required in order to use DAT SCSI tape drives The manufacturer s Tape driver is suitable for use in most applications but refer also to the documentation of your software application to ensure you are using the recommended driver On Windows systems we strongly recom
39. t the rear of the drive see Check the drive s SCSI ID on page 17 e On external tape drives the ID is displayed on the rear panel and can be set by pressing the little buttons above and below the number using a ball point pen see Check the drive s SCSI ID on page 25 SCSI termination Terminators are essential as they provide the correct voltages on the SCSI bus and prevent unwanted signal reflections from interfering with data transfers The rule is e There must be termination at both physical ends of the bus and only at the ends There are two main types of termination active and passive Active terminators reduce interference and allow faster data throughput On devices with high transfer speeds such as DAT devices active termination is required using an LVD or multimode active terminator Multimode terminators allow both LVD and single ended devices to be connected to the same bus They detect the type of bus and automatically supply the correct termination The terminator supplied with DAT tape drives is LVD Multimode terminators may be used instead Normally the HBA forms one end of the SCSI bus and provides termination You only need to ensure that the other end of the bus is terminated Internal drives A suitably terminated LVD internal ribbon cable is supplied with the tape drive The terminator is usually a small rectangular block of plastic attached to the cable end and marked SCSI Terminator
40. tage level of the interface which may be single ended SE or low voltage differential LVD DAT drives are Ultra 160 SCSI devices designed to operate on a low voltage differential SCSI interface Setting up the SCSI bus Each device on a SCSI bus including the SCSI host bus adapter HBA must be configured with a unique ID identifier The SCSI bus must be terminated Note Werecommend that a dedicated host bus adapter is used for the tape drive A suitable adapter is available from your supplier as an accessory 50 DAT SCSI Tape Drives 1018931 Identifying SCSI IDs SCSI ID numbers For wide SCSI buses the SCSI ID will be a number from 0 through 15 so a typical wide SCSI HBA can accommodate up to fifteen other devices On narrow SCSI buses the SCSI ID is a number from 0 through 7 Narrow 76543210 High priority Low Wide 7654321015141312111098 Each device must have a unique SCSI ID The drive can be assigned any unused ID between 0 and 15 Do not use SCSI ID 7 which is reserved for the SCSI controller SCSI ID 0 is typically assigned to the boot disk and should also not be used unless the tape drive is on a dedicated SCSI bus SCSI ID 7 is normally reserved for the HBA because it has the highest priority on the bus On wide buses the priority runs from 7 highest to 0 then 15 down to 8 lowest Note Asageneral rule avoid putting tape devices on the same bus as any hard disks Identifying SCSI IDs
41. tridge Compatibility anrennonrnnnnnrrnnonrnnnnnrrnnnnnnnnr 41 Notes DAT SCSI Tape Drives 1018931 About this guide This guide provides information about e Installing the Tandberg Data DAT SCSI tape drive e Using the Tandberg Data DAT SCSI tape drive e Troubleshooting the Tandberg Data DAT SCSI tape drive Intended audience This guide is intended for users who install operate and maintain the Tandberg Data DAT tape drive Technical support For worldwide technical support information please visit the support pages at htto Awww tandbergdata com Before contacting support collect the following information Product model names and numbers e Technical support registration number if applicable e Product serial numbers Error messages e Operating system type and revision level e Detailed questions Product warranties For information about product warranties please visit the support pages at http www tandbergdata com Document conventions and symbols Note Provides additional information August 2009 IX About this guide in bodily harm or death A Caution Table 1 Document conventions Convention Blue text Table 1 on page X Blue underlined text http www tandbergdata com Bold text Italic text Monospace text Monospace italic text Warning Indicates that failure to follow directions could result Indicates that failure to follow directions c
42. tridges that are bulk erased 43 Chapter 6 Use the correct media Notes 44 DAT SCSI Tape Drives 1018931 Troubleshooting In this chapter e General Procedure on page 45 e Problems with cartridges on page 46 General Procedure If a problem occurs the first step is to try to establish whether the problem lies with the cartridge the drive the host computer and connections or the way the system is being operated Has the system just been installed There could be an installation problem 1 Check through the information in the relevant installation chapter of this guide Check the power connectors Is the SCSI ID correctly set Is there a SCSI system conflict Has the SCSI bus been correctly terminated See also SCSI configuration guide on page 49 4 Check the environmental conditions against the specified limits 5 Are appropriate drivers and application software installed on the host Are you using new cartridges or a different brand of cartridge Have you been using the particular cartridge for a very long time The problem could lie with the cartridge 1 Check through Use the correct media on page 39 2 Check that you are using a DDS labeled cartridge not a DAT cartridge August 2009 45 Chapter 7 Troubleshooting 3 Use the correct media type for example DAT 160 media with DAT 160 drives DAT 72 media with DAT 72 drives Remember that although tape d
43. ty Cable length e For single ended SCSI with Fast devices there is a maximum permissible length of 6 meters for a single SCSI bus 54 DAT SCSI Tape Drives 1018931 SCSI cables e For single ended SCSI with Ultra devices the maximum permissible length is 3 meters for four or fewer devices and 1 5 meters for more than four devices For LVD SCSI the maximum length for a single device is 25 meters For multiple devices the maximum combined internal external length is 12 meters e If you have a combination of LVD and SE devices on the bus the max imum cable length reverts to the SE specification See note on SE and LVD interfaces for more information For best performance keep lengths to a minimum but avoid very short overall lengths less than 0 5 meters Cable quality e Itis important to use good quality cables Generally speaking cable quality affects performance and reliability This is particularly true for external shielded cables e Look after your SCSI cables In particular take care when connecting or disconnecting not to damage the high density connectors Avoid putting excessive twists in external shielded cables as this can cause premature failure With internal devices For DAT internal devices you need a SCSI ribbon cable with the correct termination The drives have a 68 pin wide high density SCSI connector A suitable cable is supplied with the tape drive If you are using an DAT drive on an
44. y FLASH download problem Insert a cartridge to clear the LED sequence If the condition persists call for service LED sequences for the DAT 72 tape drive There are two LEDs labeled Tape and Clean The meaning of different patterns of LEDs is as follows 34 DAT SCSI Tape Drives 1018931 August 2009 Tape LED on flashing slowly flashing rap idly off or flashing off or flashing flashing slowly LED sequences off The cartridge is loaded and the drive is ready off The cartridge is loading or unloading or self test is in progress The cartridge is loaded activity is occur ring This is the Error Condition Signal DAT drives perform a comprehensive self test during power up If a hard error causes the self test to fail the clean light changes to steady amber This is the Media Caution Signal 1 Wait for the current operation to finish then insert a different tape and repeat the operation that was being performed If the media caution signal does not show this time it indicates that the original cartridge was nearing the end of its useful life Copy any data you want to keep from the original tape onto a new tape if possible then discard the old tape If the media caution signal appears again with the second tape the tape heads need cleaning If the media caution signal appears after using a cleaning cartridge the cleaning cartridge has probably ex pired and should be

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