Sun StorageTek LTO Half-Height SCSI Tape Drive
Contents
1. US other countries or both Patented under one or more of U S Patents Nos 5 003 307 5 016 009 5 463 390 5 506 580 held by Hi fn Inc Microsoft Windows Windows NT and Windows XP are U S registered trademarks of Microsoft Corporation UNIX is a registered trademark of The Open Group Contents APODOS MIOS aor m doe i p PA Rn A Intendedaudienc amp vom mms me O E i eh a ee we ng 7 Document conventions and symbols 7 Sun technical Support cu ae cie e I e ee A WR a es 8 Sun Websites s ace ae hoe a a i RR Se Oe ee ob e eS 8 Documentation feedback Y Yg 8 LBS yo Start z rs AAA Aaa 9 Supported models occ we ae a Goe ae ou a s ias 9 Which operating systems are supported oa u a a a 9 How do I connect the drive to my server a a a 9 Internal drives p s os soe w age e a e E aoe ae e 10 Extermalidrives i side re i oo Ou DR ei e Rad de GO ega A GNSS 10 Why is the SCSI bus type important oa aoa a a 10 Usage models ig o goe a Ge o tel Se GE ac Ge RE ee a eB Gl A is 11 Other usage Models 2 FEE UU Yg 12 Drivers i ie wo ds be gb e e A ee ehe e ae 12 Backup SoftWare s s s so wos a toa e i i RA RA WR E a a es 12 2 Installing an internal LTO tape drive Lilian e 1 Check the internal drives SCSI ID 2 I I GG I I I I I Y y yg 15 Prepare mounting bay s se cs seses eede hanab 16 Attach mounting hardware FF Yg 16 Install drive s ee a e e BE a A a2. and Ready download problem If the condition persists call for service Ooee Power cycle or reset the drive The drive h fi o o O O eee Upgrade the firmware If the condition error l Drioe and Ready ON persists call for service with Tape and Clean OFF Alternates repeatedly Table 7 Rear panel LED seguences Check that the drive s SCSI cable is connected to the SCSI IN connector Check whether a terminator or other SCSI cable The enclosure is not is plugged into the SCSI OUT connector DIRETE DARE providing auto termination If a terminator is connected remove it If another SCSI cable is connected make sure that the SCSI chain is terminated at the last device There has been an enclosure The Fan PWR LED is amber failure or the cooling fan is Call for service not working correctly EY NOTE For the location of rear panel LEDs see Figure 11 on page 25 Sun StorageTek LTO Half Height SCSI Tape Drive 32 Understanding the LEDs 6 Operating your tape drive Loading a cartridge 1 Arrow indicates leading direction 3 Label area 2 Cartridge door 4 Ready light Figure 14 Inserting a cartridge 1 Lift the cartridge door and insert the cartridge into the slot in the front of the drive with the white arrow uppermost and facing the drive door 2 Apply gentle pressure until the drive takes the cartridge and loads it 3 The Ready light flashes green while the drive performs its
3. e Operating system type and revision level e Detailed questions For continuous quality improvement calls may be recorded or monitored Sun websites For additional information see the following Sun websites e http www sun com Sun corporate website e http www sun com storagetek tape_storage Sun storage products e http www sun com service contacting solution html Sun Support website e http docs sun com app docs documentation about Sun products Documentation feedback Sun Microsystems welcomes your feedback To make comments and suggestions about product documentation please submit comments at http www sun com hwdocs feedback All submissions become the property of Sun Microsystems 8 About this guide 1 Before you start Supported models This guide describes how to install and operate the following LTO tape drive models LTO 3 internal and external tape drives These are Ultra 320 SCSI devices with a maximum burst transfer speed of 320 MB s They can write uncompressed data at up to 60 MB s 216 GB hour or compressed data at up to 120 MB s 432 GB hour assuming 2 1 compression LTO 2 internal and external tape drives These are Ultra 160 SCSI devices with a maximum burst transfer speed of 160 MB s They can write uncompressed data at up to 24 MB s 86 GB hour or compressed data at up to 48 MB s 172 GB hour assuming 2 1 compression For a detailed product specification please refer
4. load sequence When the cartridge is loaded the Ready light shows steady green Unloading a cartridge A CAUTION Never try to remove a cartridge before it is fully ejected 1 Press the Eject button on the front panel Sun StorageTek LTO Half Height SCSI Tape Drive 33 1 Eject button Figure 15 Ejecting a cartridge 2 _ The drive will complete its current task rewind the tape to the beginning and eject the cartridge The rewind process may take up to 10 minutes The Ready light will flash to indicate that the unload is still in progress 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 34 Operating your tape drive 7 Use the correct media Use Sun storage media to prolong the life of the tape drive To learn more about or to purchase Sun media visit http www sun com storagetek tape_storage tape_media Ito Cartridges Cleaning cartridges The recommended cleaning cartridge is the Ultrium Universal Cleaning Cartridge This cleaning cartridge is designed to work with any LTO drive It may be used for up to 50 cleans EY NOTE Do not use the earlier LTO cartridge Blue or LTO cartridges from other manufacturers Data cartridges LTO tape drives use Ultrium tape cartridges These are single reel cartridges that match your drive s format and are optimized for high capacity throughput
5. reduced power consumption If you use LVDS SCSI devices on the same bus as single ended devices this will switch the LVDS SCSI host adapter into single ended mode and restrict cable length If you connect only LVDS SCSI devices the bus will operate in low voltage differential mode and Ultra160 and higher speeds will be enabled If you use a combination of Ultra160 and Ultra2 devices each device will operate at its optimum speed 48 SCSI configuration guide Index A audience 7 B backup software drivers 13 supported 12 backup software problems 42 buttons Unload 33 C cabling external drive 24 cartridge compatibility 35 cartridges ejected 42 inserting 33 jammed 42 problems 41 42 removing 33 changing SCSI ID external drive 23 internal drive 15 cleaning tape drive 36 compatibility backup software 12 connecting cables internal drive 18 conventions document 7 text symbols 7 D daisy chaining 43 default SCSI ID 15 23 document conventions 7 documentation providing feedback 8 drive operating 33 drive installation 18 drivers 12 backup software 13 installing 12 E ejected cartridge 42 external drive cabling 24 F front panel drives 29 33 H handling media 37 help obtaining 8 host problems 42 I inserting cartridges 33 installation cables 18 changing SCSI ID 15 23 external drive 23 internal drive 18 mounting bay 16 mou
6. tape drive You must use the Ultrium Universal Cleaning Cartridge with LTO tape drives as other cleaning cartridges will not load and run 36 Use the correct media To clean the tape drive LTO tape drives do not require regular cleaning An Ultrium Universal Cleaning Cartridge should only be used when the orange Clean LED is flashing 1 Insert the Ultrium Universal Cleaning Cartridge 2 The drive will carry out its cleaning cycle and eject the cartridge on completion which can take up to 5 minutes During the cleaning cycle the orange Clean LED will be on solid and the green Ready LED will flash Each Ultrium Universal Cleaning Cartridge cleaning cartridge can be used up to 50 times with LTO tape drives If the cleaning cartridge is ejected immediately with the Tape LED on it has expired RED cartridges Do not touch the tape media e Do not attempt to clean the tape path or tape guides inside the cartridge e Do not leave cartridges in the drive The tape loses tension in the power off state which can lead to problems particularly if the drive has been moved e Do not leave cartridges in excessively dry or humid conditions e 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 e Do not drop cartridges or handle them roughly e Stick labels onto the label area only e Do not bulk erase or degauss LTO format ca
7. to lower bays to achieve this Refer also to your server documentation Slide the tape drive into the open bay aligning the tray or rails with the slots in the bay as shown in Figure 6 Figure 6 Installing tape drive EY NOTE The illustration shows a server that uses mounting rails 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 Connect SCSI and power cables To support the high performance of the tape drive it is important that you connect to a recommended SCSI bus and use a suitable SCSI cable see Why is the SCSI bus type important on page 10 Electrical specifications are as follows 18 Installing an internal LTO tape drive Table 4 Power specifications 13 Watts idle 13 Watts idle 26 Watts typical 20 Watts typical 40 Watts maximum 33 Watts maximum Power consumption 5V 1 9A typical 5V 2 5A typical Power 5V 3 9A maximum 5V 2 5A maximum requirements 12V 0 7A typical 12V 0 7A typical 12V 2 5A maximum 12V 2 1A maximum 1 Check your server or HBA documentation to ensure that the SCSI bus and cabling supports the tape drive s bus speeds Ultra320 for LTO 3 tape drives Ultra160 for LTO 2 tape drives See also Why is the SCSI bus type important on page 10 2 At
8. to be transferred at the drive s maximum rate 10 Before you start Table 2 Supported SCSI bus types Supported Yes This is a recommended configuration for all LTO tape drives Do not daisy chain LTO 3 tape drives because performance may be degraded Do not daisy chain LTO 2 tape drives with Ultra320 devices Yes This is a recommended configuration for LTO 2 tape drives It is an acceptable configuration for LTO 3 tape drives Up to two LTO 2 tape drives may be daisy chained Do not daisy chain LTO 3 tape drives Yes This is acceptable for one LTO 2 drive per bus Do not use with LTO 3 tape drives and do not daisy chain LTO 2 tape drives Ultra wide LVDS and These are not recommended configurations because they will restrict performance single ended Ultra narrow No This will severely restrict performance and you would need a suitable cable or single ended adapter RR No The drive will not work and you may damage the drive or controller Usage models LTO tape drives can be used in a standalone or network environment However they should always be directly attached to a suitable SCSI connector on the storage server A Server B Tape drive Figure 2 Usage model The following table shows the recommended usage models and Optimizing performance on page 39 provides further information about factors that can affect performance Sun StorageTek LTO Half Height SCSI Tape Drive 11 Table 3 Recomm
9. to http www sun com LC I fee gt gt j O gt gt Y 3 e 2 1 Cassette door 5 Drive LED 2 On Off switch external drives only 6 Ready LED 3 Clean LED 7 Eject button 4 Tape LED Figure 1 Front view of half height LTO external tape drive Which operating systems are supported LTO tape drives can be connected to servers running under Solaris Linux and other major operating systems Refer to http www sun com for the most recent information about the operating system versions that are supported How do I connect the drive to my server Check the usage models on Usage models on page 11 This shows how the LTO tape drive can be used in different system architectures The following guidelines apply e You will need a properly installed and configured SCSI host bus adapter HBA or a built in SCSI controller on your server and a suitable SCSI cable See also Why is the SCSI bus type important on page 10 Sun StorageTek LTO Half Height SCSI Tape Drive e For optimum performance the drive should be the only device on the SCSI bus e Always terminate the SCSI bus LTO internal tape drives require terminators external drives are auto terminating as long as they are on a dedicated SCSI bus or the last device on a chain e Do not attach the drive to the same SCSI bus as your disk drive or to a RAID controller EY NOTE Always refer to http docs sun com app docs pro
10. A 8 18 Connect SCSI and power cables II I 18 Where should the SCSI terminator be I I I I I I y 20 Secure the drive sns ca ecs e I I III I I I I I I I I I I I I I y 21 Reboot the Server iu dd Saw A e Mee eee WL e Fe Eb ew ew oe SS 22 3 Installing an external LTO tape drive 244 4444 a ia 444 28 Check the external drives SCSI ID LL 23 Connect the SCSI cable a 24 Does the tape drive need a terminator 25 Connect the power cable s II 25 Electrical specification a a I I YG 25 Reboot the server I I I III I I I IG I I I I I I I I I I I I a 26 4 Verify installation asis GRUD ue EF 5 Understanding the LEDS gt pe Fui pi CO Your LFO taperdrive s s aca de vee oe A NN FEARN a ar end Lae al eae e T 29 Understanding LED sequences a I 29 6 Operating your tape drive a sua ts sa da a HE Re OU Loading a cartridge s e mte ve e OR a ee ee A ee es Ten e da o a 33 Unloading a cartridge saie o Se we e e i E e e Rd Y a 33 Removing power from the drive Yg 34 Sun StorageTek LTO Half Height SCSI Tape Drive 3 7 Use the correct media IMA Re AAA ee ee eS Cartridges e w moes esa TE dogda E e ER m e e WR A OR Cleaning cartridges lt s lt a soa euso kos Ro WR oaoa aok 2 sa ER DR RH Data cartridges de tee ae Sy See R Se Ge Gee oe oe o ei WORM data cartridges ua ee eye Lea ee Write prote
11. I I I I With external devices I I I I II I I I I I I I I I I I a Note on SE and LVDS interfaces Index Figures V ON 0 O ms O N e e e e RP RP eB Dn O BA O Ne O e oo N bh NO Front view of half height LTO external tape drive Usage model Checking the SCSIID Attaching mounting rails Attaching locating screws Installing tape drive Connecting SCSI and power cables Securing drive mounting hardware used Securing drive no mounting hardware used Setting the SCSI ID Connecting the SCSI cable Connecting the power cable Front view of external tape drive Inserting a cartridge Ejecting a cartridge Write protecting a cartridge SCSI termination in internal drives SCSI termination on a single LTO tape drive SCSI termination in daisy chained external drives Sun StorageTek LTO Half Height SCSI Tape Drive 11 15 17 17 18 20 21 22 23 25 26 29 33 34 36 45 46 47 Tables V AN Si O FP Oo NR Document conventions Supported SCSI bus types Recommended usage models Power specifications Electrical specifications external drives LED sequences Rear panel LED sequences Data cartridge compatibility Environmental specifications for LTO tape drives 11 12 19 26 29 31 35 41 About this guide This guide provides information about e Installing the LTO SCSI tape drive e Using the LTO SCSI tape drive e Troublesh
12. ID This is usually easy with external devices With internal devices you will probably need the device s documentation to identify the SCSI ID setting which is usually set with jumpers Setting the SCSI ID on LTO drives 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 44 SCSI configuration guide e On internal LTO tape drives set the SCSI ID by attaching or removing jumpers at the rear of the drive see Check the internal drive s SCSI ID on page 15 e On external LTO 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 external drive s SCSI ID on page 23 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 Ef NOTE 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 LTO devices active termination is reguired using an LVDS or multimode active terminator Multimode terminators allow both LVDS and single ended devices to be connected to the same bus They detect the type of bus and automa
13. Sun Storage Tek M LTO Half Height SCSI Tape Drive User Guide N Sun Doc Part Number 875 4296 10 RO S un First edition December 2007 microsystems Legal and notice information Copyright 2007 2007 Hewlett Packard Development Company L P This document was created by Hewlett Packard Company HP for Sun Microsystems Inc Sun Sun makes no warranties of any kind with regard to this material including but not limited to the implied warranties of merchantability and fitness for a particular purpose Sun shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing performance or use of this material This document contains proprietary information which is protected by copyright No part of this document may be photocopied reproduced or translated to another language without the prior written consent of Sun Sun shall not be liable for technical or editorial errors or omissions contained herein The information is provided as is without warranty of any kind and is subject to change without notice The warranties for Sun products are set forth in the express limited warranty statements for such products Nothing herein should be construed as constituting an additional warranty Other trademarks may be mentioned herein which belong to other companies Linear Tape Open LTO LTO Logo Ultrium and Ultrium Logo are trademarks of Quantum Corp HP and IBM in the
14. 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 LTO tape drives have a 68 pin wide high density SCSI connector A suitable cable with the correct termination is supplied with the tape drive If you are using an LTO drive on an internal bus with other peripherals that run at Ultra2 speeds it is important that a 68 pin LVDS compatible ribbon cable is used Do not connect your tape drive to lower rated SCSI or to narrow SCSI Sun StorageTek LTO Half Height SCSI Tape Drive A7 With external devices Your tape drive requires a 68 pin VHDCI to HD68 SCSI cable to connect to the host server Note on SE and LVDS interfaces SE and LVDS 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 LVDS 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
15. ach device on the SCSI bus 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 not be used unless the tape drive is on a dedicated SCSI bus O AIA Figure 10 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 The default is 3 Use a small screwdriver or a ball point pen to press the indented SCSI ID selector buttons on the rear panel see Figure 10 on page 23 until the required value is displayed Do not use a pencil because small bits of graphite could contaminate the drive Sun StorageTek LTO Half Height SCSI Tape Drive 23 EY NOTE The server and the tape drive SCSI IDs are only checked at power on To change the SCSI ID after installation 1 Power down both the server and the tape drive 2 Change the drive s SCSI ID 3 Power up the tape drive 4 Power up the server Connect the SCSI cable A 68 pin wide VHDCI to HD68 SCSI cable is required to connect your LTO tape drive to a VHDCI SCSI port on an LVDS SCSI bus If your server has an HD68 SCSI port you must either purchase and install a VHDCI to HD68 adapter or use an HD68 to HD68 cable instead of the supplied cable Refer to http www sun com for recommended products A CAUTION To avoid damag
16. after cleaning call for service e O O e None The cleaning cartridge will eject on IS y dn completion Cleaning is in progress Ready FLASHES and Clean The cleaning cycle can take up to 5 minutes is ON to complete The drive requires cleaning Unload the tape cartridge Make sure that you are using the correct format cartridge an LTO data cartridge or LTO Universal Cleaning Cartridge See Use the correct si media on page 35 O O C The a the o Reload the cartridge If the Tape LED aa au pe tape Just jecte still flashes or starts flashing during the Tape FLASHES ARIA next backup load a new or known good cartridge If the Tape LED is now off discard the suspect tape cartridge If it is still on call for service b Y OOO Write protect the cartridge by sliding the C O ri O switch on the tape cartridge see Write Y T N The tape cartridge memory protecting cartridges on page 36 The tape The tape is ejected CM may be faulty can be loaded and the data read Once the immediately and Tape data is recovered the cartridge must be FLASHES or Drive ME FLASHES on unloading tape O O ri O Load a new cartridge If the error persists Y T e The drive mechanism has power cycle or reset the drive Drive FLASHES detected an error If the Drive LED remains on call for service 30 Understanding the LEDs O WE There is a firmware Insert a cartridge to clear the LED sequence o Tape
17. and reliability Compatible media can be recognized by the LTO logo which is the same as the logo on the front of your drive Do not use other format cartridges in your tape drive and do not use Ultrium cartridges in other format tape drives For optimum performance always use a data cartridge that matches the specification of your tape drive A lower specification will have a lower transfer speed and may not support write activities a higher specification will not support read or write We recommend e Ultrium 800 GB RW and Ultrium 800 GB WORM tape cartridges for use with LTO 3 tape drives e Ultrium 400 GB RW tape cartridges for use with LTO 2 tape drives Table 8 Data cartridge compatibility Ultrium 800 GB WORM data cartridge Ultrium 200 GB Ultrium 400 GB Ultrium 800 GB Tape drive model data cartridge data cartridge data cartridge uu Capacity assumes 2 1 compression WORM data cartridges The LTO 3 tape drive includes support for both re writable and Write Once Read Many WORM data cartridges WORM cartridges provide for an enhanced level of data security against accidental or malicious alteration of data on the tape cartridge The WORM data cartridge can be appended to maximize the full capacity of the tape cartridge but the user will be unable to erase or overwrite data on the cartridge Any attempt to modify a WORM cartridge to enable writing over existing data will result in the media becoming permanently
18. art of the chassis such as the backplate Similarly touch a bare metal part of the drive before installing it 1 Assemble the necessary tools and materials e Phillips screwdriver e Flat head screwdriver if your server uses slotted screws e Torx screwdriver if your server uses torx screws e Your server manuals for reference during installation 2 Perform anormal system shutdown and turn off the server and any connected peripherals 3 Remove the cover and front panel from the server as detailed in your server s documentation As 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 EY NOTE The server must provide forced cooling and be capable of drawing 6 cfm 0 17 m3 minute or 10 08 m3 hour of air through the tape drive at up to 40 C ambient operation This reduces to 4 cfm at 35 C ambient operation Ensure that empty bays have the appropriate blank plates installed so that airflow is maintained 4 Remove the filler panel from a spare 54 inch bay of your server as described in your server s documentation With some servers you must also remove the half height device divider 5 You are now ready to install your tape drive Attach mounting hardware If your server requires special rails or other hardware
19. ave 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 BT NOTE As a general rule avoid putting tape devices on the same bus as any hard disks Identifying SCSI IDs 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 e On Windows systems you can use the 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 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 e Look at each device to find out its
20. c 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 NC 8 4 2 1 NC 8 4 2 1 NC 8 4 2 1 NC 8 4 2 1 NC 8 4 2 1 oee if 13 efjo of e e felfe o f o o o ojojo o o o olollol o o o olo lol o o olo o lol o o ol ol o o 2 default 3 5 9 13 Figure 3 Checking 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 The SCSI ID is set by putting jumpers on a set of pins at the rear of the drive Figure 3 shows how the jumpers must be positioned on the pins to set the corresponding ID Use tweezers or small Sun StorageTek LTO Half Height SCSI Tape Drive 15 pliers to move the jumpers to the pattern corresponding to the ID you want Spare jumpers are provided with the drive Prepare mounting bay You need one industry standard 5 inch half height bay in which to install the LTO tape drive A WARNING To avoid personal injury or damage to the server or tape drive ensure that the server is disconnected from the main power supply while you install the drive A 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 p
21. ck the power cable connection and Drive may not have power replace the cable if necessary On external may be faulty or may have dri h le f been power cycled or reset rives you can use the power cable from during a firmware upgrade YOY Monitor or another device to check 8 prade 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 All LEDs OFF Dy L a O 0 O The drive has failed to Power cycle or reset the drive l execute power on self test If the error condition reappears call for Ready and Clean OFF Drive POST service and Tape FLASH Sun StorageTek LTO Half Height SCSI Tape Drive 29 LED Sequence Action required O O o o AA None This is normal Ready is ON operation O O O OF The drive is carrying out a None normal activity read write If the drive is upgrading firmware do not Ready FLASHES reset or power cycle it Val O O O x The drive is downloading None Ready FLASHES fast firmware Do not reset or power cycle the drive o O Firmware is being None Ready is OFE others are ON reprogrammed Do not reset or power cycle the drive Load the LTO cleaning cartridge See Sl Cleaning cartridges on page 35 for O O O O supported cartridges and instructions i If the Clean LED is still flashing when you Clean FLASHES load a new or known good data cartridge
22. cting cartridges Lod eS DOS Oe IO AO gt eS bed ur oe te g Cleaning the tape drive Yg dietista Handling cartridges FREE nae ee s a e Operating and storage environment DG 8 Optimizing Performance ee de E dee HO ee E Hd Is the tape drive on a dedicated SCSI bus 0 22 Can your system deliver the required performance TEPEE 9 Troubleshooting General procedure Problems with cartridges o a a a a a The cartridge is jammed s s s eos FF a The drive will not accept the cartridge or ejects it immediately LL A SCSI configuration guide CETTE eee ee Se ewe SCSI in LTO devices ae eM a oe e Bae dea cli E AES e Daisy chaining devices s a e ss s suossa cedens temena keda aw SCSLterminology gt s ea os e as O RW RR i a AA Setting up the SCSI bus c 4 s oea k maa Se POR Se de eee DR OR eS a SCSI ID numbers s s a ea sa I I a I I I I I I I I y Identifying SCSIIDS e 2 o sis amp e A e e eee RL RR E Gow RP PO 8 Setting the SCSI ID on LTO drives ug SCSI termination ce th See i ita e E a cn a RE Internal drives Pea ae e a sete a External drives ES e Bo fa bio a dei DURA SCSI Cables ia loo encara e e n been es ee ee ee he eh Cable length a a een oe ee sno a Bee e a Cable quality s s oc soe a POR a aop FO RE A OR RR A UR WR He GR R8 With internal devices I I I I III I I I
23. d storage net fhic 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 5 inch half height 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 HD68 wide SCSI connector on the host server The cable must be terminated See also Installing an internal tape drive on page 15 External drives A 68 pin wide VHDCI to HD68 SCSI cable is required to attach the tape drive to the host server See also Installing an external tape drive on page 23 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 LTO 3 drives support a burst transfer rate of 320 MB sec LTO 2 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 Ultra320 bus for LTO 3 drives An Ultra160 or Ultra320 SCSI bus for LTO 2 drives If you attach the drive to a lower specification SCSI bus it may still work but will transfer data at a lower speed LVDS rated SCSI cabling and terminators The LVDS interface enables the data
24. ecting cartridges on page 36 5 Clean the tape heads with the cleaning cartridge see Cleaning cartridges on page 35 Make sure you are using the Ultrium Universal Cleaning Cartridge 6 Try the operation again 7 Ifthe problem still occurs try using a different cartridge 8 Ifthe 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 Sun StorageTek LTO Half Height SCSI Tape Drive 41 Check the cables and connectors Clean the tape heads with the cleaning cartridge If the problem persists check the environmental conditions against the specified limits see Table 9 on page 41 or refer to http www sun 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 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 If you experience any problems using LTO branded cartridges check The cartridge case is intact and that it contains no splits cracks or damage The cartridge has been sto
25. ended usage models Direct Attach Across the Network single storage server single storage server multiple clients cS cS mae sm Ethernet Recommended anything less than Gigabit Ethernet Recommended o may limit performance A RAID disk subsystem is recommended for all usage models A single spindle disk will not be able to deliver adeguate data throughput for an LTO 3 tape drive at any compression ratio To maximize the capability of your LTO 3 tape drive use aggregated disk sources RAID with multiple disk spindles A single spindle disk particularly a fast disk such as a 15K RPM drive will be sufficient for LTO 2 tape drives but be aware of other factors that can affect performance such as compressibility of data disk fragmentation and the number of files See also Optimizing performance on page 39 Other usage models The tape drive may work with other usage models such as network attach storage NAS and storage area networks SAN but there is currently no technical support for installing and using standalone LTO tape drives with these architectures Similarly connection to Fibre Channel may be possible if you purchase and install a Fibre Channel SCSI bridge but it is not currently a supported option Check http www sun com for the latest supported configurations Drivers The Sun Tape drivers are available on SunSolve http sunsolve sun com show do target tous e Solaris 10 requires no patches e S
26. fication This means that you need An Ultra320 bus for LTO 3 tape drives An Ultra160 or Ultra320 bus for LTO 2 tape drives If you attach the drive to a lower specification SCSI bus it will still work but data transfer may not be as quick Ultra2 SCSI is also supported but performance may be degraded lVDS rated SCSI cabling and terminators The LVDS interface enables the data to be transferred at the drive s maximum rate and provides a maximum cable length of 12 meters Daisy chaining devices EY NOTE We do not recommend daisy chaining the LTO 3 tape drive with other devices If you need to connect multiple devices to the bus performance may be restricted if there are too many devices on the bus that 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 is not recommended as performance will be severely impacted and complicated bus configuration is reguired 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 SCSI termination on page 45 for more information about terminating LTO 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 t
27. he LTO 3 tape drive can write uncompressed data at up to 60 MB s 216 GB hour or compressed data at up to 120 MB s 432 GB hour assuming 2 1 compression e The LTO 2 tape drive can write uncompressed data at up to 24 MB s 86 GB hour or compressed data at up to 48 MB s 172 GB hour assuming 2 1 compression To obtain this performance it is essential that your whole system can deliver this performance In most cases the backup application will provide details of the average time taken at the end of the backup Typical areas where bottlenecks can occur are e Disk subsystem A single spindle disk will not be able to deliver good data throughput for an LTO 3 tape drive at any compression ratio To maximize the capability of these tape drives utilize aggregated disk sources RAID with multiple disk spindles A single spindle disk may be sufficient for an LTO 2 tape drive depending on your data s compressibility Best practice to ensure good throughput is to utilize multiple disk spindles or data sources System architecture Be aware of the architecture of your data protection environment multiple clients backed up over a network may mean you are unable to take advantage of the LTO 3 tape drive because the Ethernet infrastructure connecting such systems may limit performance For LTO 2 tape drives the aggregation of multiple client sources over a network provides a good way of delivering good performance but anything less than Gigabit E
28. he 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 a common arrangement in high performance servers Some host bus adapters such as the Sun SGXPCI2SCSILM320 Z Ultra 320 HBA have more than one SCSI bus available on a single card Various terms are used when describing SCSI devices These terms relate to factors that affect performance and cable length e The speed of the data bus which may be Fast Ultra Ultra2 Ultra3 Ultra160 or Ultra320 e The width of the data bus which may be Wide or Narrow 16 Bit or 8 Bit e The voltage level of the interface which may be single ended SE or low voltage differential SCSI LVDS Sun StorageTek LTO Half Height SCSI Tape Drive 43 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 EY NOTE We recommend that a dedicated host bus adapter is used for the tape drive A suitable adapter is available from Sun Microsystems 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 15 other devices On narrow SCSI buses the SCSI ID is a number from 0 through 7 Narrow 76543210 High priority Low Wide 765432101514 1312111098 Each device must h
29. he second terminator is placed after the last device as shown in Figure 7 item 1 20 Installing an internal LTO tape drive Secure the drive 1 Secure the drive as described in your server documentation The following diagrams are examples only Ca C CAC CS ATA oo Le ie cl cc 1 Plastic rail 2 Server latch Figure 8 Securing drive mounting hardware used Sun StorageTekTM LTO Half Height SCSI Tape Drive 21 1 M3 screws Figure 9 Securing drive no mounting hardware used Ef NOTE Use 3 mm screws and if you cannot tighten the screws use washers to secure them 2 Ensure blank plates are in place over empty bays and replace the cover on the server Reboot the server Reboot the server to power up the tape drive and server Watch the boot screen carefully after installation If there are any errors or unexpected messages go back and check the SCSI cabling carefully e Have you installed the correct SCSI cable e Have you reconnected all devices securely If this does not resolve the problem refer to Troubleshooting on page 41 for further guidelines 22 Installing an internal LTO tape drive 3 Installing an external LTO tape drive If you are installing an internal LTO tape drive please refer to Installing an internal tape drive on page 15 Check the external drive s SCSI ID Your LTO tape drive is shipped with a default SCSI ID of 3 E
30. ing the computer or tape drive ensure that both are powered off while you attach the SCSI cable 1 Make sure you are connecting to a recommended SCSI bus type For optimum performance your tape drive should only be connected to a SCSI bus that can transfer data at a rate that supports the tape drive s maximum burst transfer speed LTO 3 tape drives should be connected to an Ultra320 SCSI bus LTO 2 tape drives may be connected to an Ultra160 SCSI bus See also Why is the SCSI bus type important on page 10 Do not connect the tape drive toa single ended SCSI bus or to a RAID controller For optimum performance we recommend that your LTO tape 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 a normal system shutdown and turn off the server and any connected peripherals 3 Attach the VHDCI connection on the SCSI cable to the server s external SCSI connector and secure it by tightening the screws 24 Installing an external LTO tape drive 1 Act TERM LED 3 SCSI IN 2 Fan Power LED Figure 11 Connecting the SCSI cable Attach the HD68 connection on the SCSI cable to the SCSI IN bottom connector on the rear panel of the tape drive and secure it by tightening the screws See Figure 11 Do not connect the cable to the SCSI OUT connector The SCSI OUT connector is only used when daisy chaining two devices This is not recommended If you were to do so do n
31. ion on a single LTO tape drive If you have more than one device on the SCSI bus daisy chain them by connecting an LVDS rated cable from the SCSI OUT connector on the first device to the SCSI IN connector on the second device Assuming you have two LTO tape drives connected the enclosure on the second drive provides termination The green ACT Term LED on the rear of the first drive will be off while on the rear of the second drive it will be on If the second device is not an LTO external drive make sure that it is terminated using an LVDS rated multimode terminator 46 SCSI configuration guide Figure 19 SCSI termination in daisy chained external drives SCSI cables Cables matter in SCSI systems There are two factors to consider cable length and cable quality Cable length e For LVDS SCSI the maximum length for a single device is 25 meters For multiple devices the maximum combined internal external length is 12 meters If you have a combination of LVDS and SE devices on the bus the maximum cable length reverts to the SE specification This is 3 meters for four or fewer devices and 1 5 meters for more than four devices See also Note on SE and LVD interfaces on page 48 e For best performance keep lengths to a minimum but avoid very short overall lengths less than 0 5 meters Cable guality e Itisimportant to use good quality cables Generally speaking cable quality affects performance and reliability
32. ng 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 2 Check the power connectors and SCSI cabling 3 Is the SCSI ID correctly set Is there a SCSI system conflict Has the SCSI bus been correctly terminated See Check the internal drive s SCSI ID on page 15 and Check the external drive s SCSI ID on page 23 4 _ Are appropriate drivers and application software installed on the host 5 Check the environmental conditions against the specified limits Table 9 Environmental specifications for LTO tape drives 0 0 0 0 ini ai to aE aha minimum of 20 to 80 RH non condensing 400 to 1510 F 400 to 669 C 10 to 95 RH non condensing 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 the media chapter Use the correct media on page 35 2 Check that you are using an Ultrium cartridge Compatible media can be recognized by the LTO logo which is the same as the logo on the front of your drive 3 Use the correct media type for example e Ultrium 800 GB RW and Ultrium 800 GB WORM tape cartridges for use with LTO 3 tape drives e Ultrium 400 GB RW tape cartridges for use with LTO 2 tape drives 4 Has the cartridge been write protected See Write prot
33. nting hardware 16 problems 41 verifying 27 installing drivers 12 jammed cartridge 42 E LEDs 29 M media cartridge compatibility 35 cleaning 35 36 data 35 environment 37 handling 37 where to order 35 WORM 35 write protect 36 mounting bay 16 mounting hardware 16 Sun StorageTek LTO Half Height SCSI Tape Drive 49 O operating and storage environment 37 operating systems 9 operation drives 33 optimizing performance 39 P performance 39 power specification 18 25 product specification See S SCSI cables 47 configuration guide 43 daisy chaining 43 terminology 43 SCSI bus 44 SCSI bus types 10 SCSI cable 24 SCSI cables 18 SCSI ID default 15 23 SCSI IDs 44 SCSI termination external drives 46 external drive 25 internal drive 20 internal drives 45 Sun technical support 8 50 supported models 9 symbols in text 7 T tape drive front panel 29 LEDs 29 problemsa 41 technical support service locator website 8 Sun 8 text symbols 7 transfer rates 9 troubleshooting after installation 41 drive 41 media 41 42 U Unload button 33 usage models 11 V verify installation 27 W websites Sun 8 WORM cartridge 35 write protect 36
34. olaris 9 requires patch 113272 27 or later e Solaris 8 requires patch 108725 18 or later 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 sun com It is important to check for software compatibility and install any recommended upgrades 12 Before you start EY NOTE Certain backup applications require you to use their own Tape driver instead of the Sun Solaris Tape driver Sun StorageTek LTO Half Height SCSI Tape Drive 13 14 Before you start 2 Installing an internal LTO tape drive If you are installing an external LTO tape drive refer to Installing an external tape drive on page 23 Check the internal drive s SCSI ID Your LTO tape drive is shipped with a default SCSI ID of 3 Each device on the SCSI bus 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 not be used unless the tape drive is on a dedicated SCSI bus A CAUTION Stati
35. ooting the LTO SCSI tape drive Intended audience This guide is intended for users who install operate and maintain the LTO tape drive Document conventions and symbols Table 1 Document conventions Blue text Table 1 on page 7 Cross reference links and e mail addresses e Keys that are pressed e Text typed into a GUI element such as a box e GUI elements that are clicked or selected such as menu and list items buttons tabs and check boxes Bold text Ttalic text Text emphasis e File and directory names e System output e Code e Commands their arguments and argument values e Code variables Monospace italic text e Command variables Monospace bold text Emphasized monospace text Monospace text A WARNING Indicates that failure to follow directions could result in bodily harm or death A CAUTION Indicates that failure to follow directions could result in damage to equipment or data Y IMPORTANT Provides clarifying information or specific instructions Sun StorageTek LTO Half Height SCSI Tape Drive 7 EY NOTE Provides additional information Sun technical support Telephone numbers for worldwide technical support are listed on the Sun support website http www sun com service contacting solution html Collect the following information before calling e SunSpectrum contract number e Product serial numbers e Product model names and numbers e Error messages
36. ot mix drive families only daisy chain with other LTO tape drives and do not daisy chain Ultra320 tape drives Does the tape drive need a terminator If the tape drive is on a dedicated SCSI bus it does not require a terminator When the cable is connected to the SCSI IN connector the enclosure provides active termination If it is not the only device on the SCSI bus you must make sure that the SCSI bus is terminated You can do this in two ways Place the tape drive at the end of the chain and attach the HD68 connection on the SCSI cable to the SCSI IN connector the enclosure provides active termination Attach the HD68 connection on the SCSI cable to the SCSI IN connector and use the SCSI OUT connector on the tape drive to connect to the next device in the chain Make sure that the last device in the chain is terminated with an LVDS multimode terminator Connect the power cable Electrical specification No adjustment is needed Electrical specifications are as follows Sun StorageTek LTO Half Height SCSI Tape Drive 25 Table 5 Electrical specifications external drives 13 Watts idle 13 Watts idle Power consumption 26 Watts typical 20 Watts typical 40 Watts maximum 33 Watts maximum 100 240 VAC 100 240 VAC Power requirements 50 60 Hz auto ranging 50 60 Hz auto ranging 0 7A maximum 0 7A maximum 1 Plug the power cable securely into the socket on the rear panel of the drive 2 Plug the other end of the powe
37. r cable into the power outlet The power on off switch is on the front panel see the inset in Figure 12 1 Power cable 2 Power on off switch Figure 12 Connecting the power cable Reboot the server Reboot the server to power up the tape drive and server Watch the boot screen carefully after installation If there are any errors or unexpected messages go back and check the SCSI cabling carefully e Have you installed the correct SCSI cable e Have you reconnected all devices securely If this does not resolve the problem refer to Troubleshooting on page 41 for further guidelines 26 Installing an external LTO tape drive 4 Verify installation Once you have installed the drive hardware check that drivers have been installed correctly and that you have the correct version of backup software and verify that the tape drive is functioning properly before you store your valuable data 1 Switch on the drive and the server 2 _ The tape drive will run its hardware self test which takes about 5 seconds If the 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 LEDs are off This continues until the drive is reset See Loading and unloading on page 33 for more information about front panel lights e Installing drivers Solaris We recommend that you download the latest driver from the Sun SunSolve
38. red at the correct temperature and humidity This prevents condensation See the insert included with the tape cartridge for storage conditions The write protect switch is fully operational It should move from side to side with a positive click The cartridge is jammed If the cartridge is jammed or the backup application is unable to eject it you can force eject the cartridge If the failure occurs regularly contact Customer Support 1 2 Either press and hold the Eject button on the front of the tape drive for at least 10 seconds Wait for the cartridge to be ejected This process may take up to 10 minutes the maximum rewind time 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 If the cartridge is still jammed the tape drive has failed contact Customer Support 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 2 42 Check that the drive has power the power cable is prope
39. rly connected and the Ready LED is on Check that you are using the correct media Use only Ultrium media see Use the correct media on page 35 e Ultrium 800 GB RW tape cartridge or 800 GB WORM tape cartridge for LTO 3 drives e Ultrium 400 GB RW tape cartridges for use with LTO 2 tape drives Make sure that you have loaded the cartridge with the correct orientation see Loading and unloading on page 33 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 Check if another LTO drive of the same model will accept the cartridge If it does the original drive may be faulty Before calling customer service please check that the tape drive is responding Troubleshooting A SCSI configuration guide SCSI in LTO devices LTO 3 tape drives are high performance Ultra320 SCSI compatible devices LTO 2 tape drives are high performance Ultra160 SCSI compatible devices They are designed to operate on a low voltage differential LVDS SCSI interface and are not compatible with high voltage differential HVD SCSI devices LTO 3 tape drives support a burst transfer rate of 320 MB sec LTO 2 tape 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 speci
40. rtridges because this will render them unusable Operating and storage environment To prevent condensation and for long life the cartridge should only be operated or stored as follows e Operation 1000 C to 450 C 500 F to 113 F e Day to day storage in plastic container 160 C to 320 C 600 F to 900 F e Non condensing relative humidity 10 to 80 operating 20 to 60 non operating Tapes intended for long term storage should be stored in the plastic containers at temperatures between 50 C and 239 C 410 F and 730 F and 20 to 60 relative humidity Sun StorageTek LTO Half Height SCSI Tape Drive 38 Use the correct media 8 Optimizing Performance Various factors can affect tape drive performance particularly in a network environment In nearly all cases when performance is not as expected it is the data rates of the disk subsystem that cause the bottleneck If your tape drive is not performing as well as expected for example if backup windows are longer than expected please consider the following points before contacting Customer Support Is the tape drive on a dedicated SCSI bus We recommend that the tape drive is the only device on the SCSI bus If it is not ensure that other devices are LVDS compliant If they are single ended the bus will switch to single ended mode with a lower transfer speed There will also be restrictions on cable length Can your system deliver the required performance e T
41. tach the SCSI ribbon cable supplied with the tape drive to the SCSI host bus adapter and connect it to the SCSI connector of the drive as shown in Figure 7 3 Attach a spare power cable from the server s internal power supply to the power connector as shown in Figure 7 4 Attach a spare connector on the server s built in SCSI bus or the HBA s SCSI ribbon cable to the SCSI connector of the drive as shown in Figure 7 5 If the drive is the last device on the SCSI chain make sure that the SCSI cable is terminated correctly Daisy chaining two devices is not recommended If you were to do so do not mix drive families daisy chain only with other LTO tape drives and do not daisy chain any Ultra320 devices Sun StorageTek LTO Half Height SCSI Tape Drive 19 1 SCSI cable 5 server s power supply 2 power cable 6 SCSI controller 3 tape drive 7 terminated SCSI cable 4 power cable Figure 7 Connecting SCSI and power 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 Therefore assuming the HBA is the first device on the bus you should check that t
42. thernet may limit performance for LTO 2 tape drives Some enterprise class backup applications can be made to interleave data from multiple sources such as clients or disks to keep the tape drive working at optimum performance e Tape media type The data cartridge should match the specification of the tape drive A lower specification will have a lower transfer speed see Data cartridges on page Use e Ultrium 800 GB R W or Ultrium 800 GB WORM cartridges with LTO 3 tape drives e Ultrium 400 GB R W cartridges with LTO tape drives Data and file types The type of data being backed up or restored can affect performance Typically small files incur greater overhead in processing and access than large files Egually data that is not compressible will always limit the speed at which the drive can write read data You will achieve no more than native rates with uncompressible data Sun StorageTek LTO Half Height SCSI Tape Drive 39 Examples of files that compress well are plain text files spreadsheets those that compress poorly are either compressed as part of their format such as JPEG photographic files or stored as compressed such as ZIP files or gz Z files on Unix platforms 40 Optimizing Performance 9 Troubleshooting 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 bei
43. tically supply the correct termination 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 LTO internal tape drives do not supply termination A suitably terminated LVDS 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 Figure 17 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 Sun StorageTek LTO Half Height SCSI Tape Drive 45 EY 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 For LTO external tape drives the enclosure provides active termination As long as the drive is the only device on the SCSI chain no terminators are required The green ACT Term LED on the rear of the drive indicates whether auto termination is active on or not off Make sure the terminator is firmly attached to the SCSI OUT connector on the rear of the device when you install it Figure 18 SCSI terminat
44. to install the tape drive mount them on the tape drive now If your server does not require special mounting hardware proceed to Install drive on page 18 now 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 16 Installing an internal LTO tape drive A CAUTION The LTO half height drive only allows 3 mm of the engagement of the screw into the drive If you remove an existing drive do not assume the screws that you remove are the correct length for your new LTO drive Always use 3 mm screws and use washers or shims to tighten if necessary Different models of server require different mounting methods Always refer to your server documentation for details The following diagrams illustrate common mounting methods If mounting hardware is supplied with your tape drive it may not be exactly the same as shown in the illustrations 1 M3 mounting screws 2 M3 offset mounting screws Figure 5 Attaching locating screws ET NOTE Use 3 mm screws and if you cannot tighten the screws use washers or metal shims to secure them Sun StorageTek LTO Half Height SCSI Tape Drive 17 Install drive EY NOTE If cable access for the tape drive bay is awkward it may be easier to access power and other connections if the tape drive is installed in the top bay You may need to move other devices
45. website http www sunsolve sun com show do target tous See also Drivers on page 12 EY NOTE Certain backup applications require you to use their own Tape driver instead of the Sun Solaris Tape driver Verify that the tape drive installation was successful For all operating systems ensure that you have downloaded any upgrades necessary for your backup application Check http www sun com for software compatibility and install any recommended upgrades 5 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 will not support all the advanced features of your tape drive We recommend that you upgrade your software application before running this test Sun StorageTek LTO Half Height SCSI Tape Drive 27 28 Verify installation 5 Understanding the LEDs Your LTO tape drive See also Understanding LED sequences on page 29 gt El TE 2 3 1 Cassette door 5 Drive LED 2 On Off switch external drives only 6 Ready LED 3 Clean LED 7 Eject button 4 Tape LED Figure 13 Front view of external tape drive Understanding LED sequences The meaning of different patterns of LEDs is as follows Table 6 LED sequences Make sure the drive is switched on The power on off switch on an external drive incorporates a green LED i Che
46. write protected It should still be readable in a WORM drive depending upon the severity of the tampering but no further appended backups will be possible Sun StorageTek LTO Half Height SCSI Tape Drive 35 WORM data cartridges are clearly identified by their distinctive two tone cartridge color They can only be used with LTO tape drives that support the WORM feature To check whether your backup or archive software application supports WORM cartridges refer to http www sun com Write protecting cartridges A WARNING Always remove the cartridge from the tape drive before you change the write protection If you want to protect the data on a cartridge from being altered or overwritten you can write protect the cartridge e To write protect a cartridge push the switch to the right to prevent any data recording on the cartridge Note the padlock on the tab that indicates that the cartridge is protected e To write enable a cartridge push the switch to the left to allow data recording on the cartridge Figure 16 on page 36 illustrates the location of the write protect tab 1 Write protect tab Figure 16 Write protecting a cartridge Write protection will not protect your cartridges against magnets Write protection will not prevent a cartridge being erased by bulk erasure or degaussing Do not bulk erase LTO format cartridges This will destroy pre recorded information and make the cartridge unusable Cleaning the
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