Quantum vmPRO User's Guide
Contents
1. Preface V Contacting Quantum llle ns vi Chapter 1 Quantum LTFS Overview 1 Introduction isslsleeeeee RR RR e s 1 Features ox ku ues dE eee pee one en BEM EE NU E V ur a quse 2 BenefitSi 24422428 28 ode eee cnag nen dade d dada 2 Intended Usage 1 0 2 000 eee 3 Architecture edd rei ee te ee ea bakes 4 Supported configurations llle essen 4 Chapter 2 Installation and Configuration 5 Linux Installation and Configuration liliis else 5 Downloading and installing Quantum LTFS 6 To uninstall LTFS 2 llli erre 8 Mac OS X Installation and Configuration 000000 8 Downloading and installing Quantum LTFS 8 To uninstall LIF Soa 3 2 4 utero n rer bc 10 Quantum LTFS User s Guide iii Contents Chapter 3 Using Quantum LTFS 11 How to uselTFS Linux sseeee ee es 12 How to Use LTFS Mac GUI 0 00 00 cee 16 How to Use LTFS Mac Terminal Commands 20 Usage details liliis esee 25 Chapter 4 Troubleshooting 27 General einen eee ees Bees ei cu e cn red xoa 27 Shared libraries 0 eet 28 Drive connection 28 Using Quantum LTFS to check the cartridge 29 Appendix A Frequently Asked Questions 33 Quantum LTFS User s Guide Preface This manual introduces Quantum Linear Tape File System LTFS software and discusses its configuration and operation Audience T2. 2 match any single character and match zero or more characters Disallow mount time data placement policy changes f OR force Force reformat of existing LTFS volume normally prevented q OR quiet Suppress progress information and general messages t OR trace Enable function call tracing only useful for debugging h OR help This help p OR advanced help or advanced help Full help including advanced options 3 Mount the formatted tape cartridge mkdir mnt ltfs ltfs mnt ltfs Quantum LTFS User s Guide Chapter 3 Using Quantum LTFS 14 Note Some operating systems require creating each folder or subfolder in separate commands For example mkdir mnt cd mnt mkdir ltfs cd ltfs Itfs Options o devname lt dev gt Tape device required if not using the default device dev stO for Linux 0 work_directory lt dir gt LTFS work directory default tmp Itfs o trace Enable function call tracing only useful for debugging o eject Ejects the cartridge after an unmount command 0 sync_type lt type gt Specify sync type default time 5 lt type gt should be specified as follows time min LTFS attempts to write an index each min minutes Min should be the decimal number from 1 to 15372286728912 default min 5 Specifying an integer greater than 35791394 on 32 bit Linux systems will result
3. qtmltfs x x x dmg Open the binary disk image by double clicking on it in a Finder window The disk image contains the Snow Leopard Mac OS 10 6 installation package LinearTapeFileSystem pkg as well as the following support file ICUFramework x x x x pkg Install the ICU package first by double clicking on the file ICUFramework x x x x pkg and following the instructions Now install the LTFS package by double clicking on the file LinearTapeFileSystem pkg and following the instructions Note Packages will not install if all applicable licenses are not accepted Quantum LTFS is now installed See Using Quantum LTFS for the next steps GUI Updates a LTFS Manager tar gz is part of the qtmltfs 2 0 0 8 file Double click and it extracts LTFS Manager app b Move LTFS Manager app to your desktop or applications folder Chapter 2 Installation and Configuration Mac OS X Installation and Configuration c Double click LTFS Manager app to begin To uninstall LTFS If at a later date you want to uninstall LTFS from your system delete usr local bin ltfs and then delete the tree under Library Frameworks LTFS framework To also delete the ICU package delete the tree under Library Frameworks ICU framework 10 Quantum LTFS User s Guide E m Chapter 3 gt Using Quantum LTFS This chapter describes how to work with Quantum LTFS and contains the following sections How to use LTFS Linux How
4. rpm ivh package name For example rpm ivh qtmltfs 1 2 0 1 x86_64 rpm Note The binary RPM checks for dependencies in the RPM database If FUSE was installed by building from the source the RPM database may not properly reflect that the dependencies have been installed which will prevent LTFS from being installed It is possible to work around this by utilizing the nodeps option to disable dependency checking when installing the RPM package Note The SLES 11 version of chkconfig command is a little different from standard linux in that after invoked with either add or delete service option it executes the list mode option of chkconfig to display the new runlevels O to 6 to the terminal The binary RPM will place links to executables in usr local bin Itfs mkltfs Itfsck Quantum LTFS User s Guide 7 Chapter 2 Installation and Configuration Mac OS X Installation and Configuration To uninstall LTFS and a number links to dynamic libraries in usr local lib or usr local lib64 and also in a new subdirectory usr local lib Itfs or usr local lib64 Itfs 5 Quantum LTFS is now installed See Using Quantum LTFS for the next steps If at a later date you want to uninstall LTFS from your system use the following command rpm e qtmltfs Mac OS X Installation and Configuration Downloading and installing Quantum LTFS oo When using Quantum LTFS with Quantum LTO 5 or later tape
5. Quantum LTFS relies on a drive feature called partitioning which was added to the LTO 5 format It is not part of the LTO 4 or earlier tape formats and they cannot be used Q Can use LTO 4 media in my LTO 5 or LTO 6 drive A The LTO 5 drives can load read and write LTO 4 media and LTO 6 drives can load and read but not write LTO 4 media However the LTO 4 format does not support partitioning Therefore LTO 4 media 33 Appendix A Frequently Asked Questions 34 cannot be used with Quantum LTFS Q Can use WORM media with Quantum LTFS A No WORM media cannot be partitioned and so is not usable with Quantum LTFS Q Can I uninstall Quantum LTFS A Yes Linux Use the following command in a terminal window rpm e qtmltfs Mac OS X delete the tree under Library Frameworks LTFS framework To also delete the ICU package delete the tree under Library Frameworks ICU framework Q Where do I go if have a problem A For most common issues see Chapter 4 on Troubleshooting If this does not address the issue call Quantum support Q Does Quantum LTFS replace my existing backup software A In most cases Quantum recommends that you continue to use your existing backup application Quantum LTFS provides a good method of storing and transporting large files but is not generally a direct replace ment for a backup application Q Is source code available for Quantum LTFS A Yes full source code is released under th
6. 2 7 or later f FUSE cannot be installed via an RPM package the source code may be downloaded from the following location http fuse sourceforge net After FUSE has been installed the following command may be used to check whether the module is loaded lsmod grep fuse f the module is not listed as currently loaded you must load it before proceeding modprobe fuse 2 Determine whether you want to use precompiled utilities or build your own version of the Quantum LTFS application Note Currently Quantum only supports installations using the precompiled binaries 3 To build from the source code download and unpack the Quantum LTFS source archive qtmltfs x x x tar gz 6 Quantum LTFS User s Guide Chapter 2 Installation and Configuration Linux Installation and Configuration Then follow the instructions in qtmltfs x x x doc BUILDING linux or qtmltfs x x X doc BUILDING linux 4 To use precompiled utilities download the appropriate package for your operating system platform For RHEL rhelx qtmltfs x x x x i386 rpm 32 bit or rhelx qtmltfs x x x x x86_64 rpm 64 bit For SLES slesxxspx qtmltfs x x x x i586 rpm 32 bit or slesxxspx qtmltfs x x x x x86_64 rpm 64 bit Download the Quantum LTFS GPG key from the Quantum LTFS download page and import it with the following command rpm import qtmltfs public GPG key asc Install the Quantum LTFS package with the following command
7. Quantum LTFS application requires that the LTO 5 or later tape drive is powered up and properly connected to the system Issue the following command to verify e g for Linux Quantum LTFS User s Guide Using Quantum LTFS to check the cartridge Quantum LTFS User s Guide Chapter 4 Troubleshooting General cat proc scsi sg device strs e g for Mac OS X Use the Mac OS X System Profiler utility to check LTO tape drives connected to your SAS controller If a LTO drive is not properly connected check the power status and cabling from the SAS connector to the LTO drive Quantum LTFS will not be able to operate untuil a LTO 5 or later drive is detected Every time a cartridge is mounted onto the system the Quantum LTFS application will perform a consistency check to ensure that the index information is accurate and up to date with the data on the tape If for some reason there is a problem the mount operation will fail In order to recover the tape to a consistent state the Itfsck utility may be used to check and repair the LTFS volume The options to Itfsck are shown below the only required parameter is the device name e g dev stO on Linux but the behavior of Itfsck can be controlled through the following Usage 1tfsck options filesys where filesys is the device file for the tape drive g generation OR Specify the generation to roll generation generation back t time OR time time
8. in an error message and the value will not be accepted Therefore on 32 bit Linux systems the maximum value displayed for sync_type field is the maxi mum allowed integer 35791394 close LTFS attempts to write an index when a file is closed unmount LTFS attempts to write an index when the medium is unmounted 0 force_mount_no_eod Skips eod existence check when mounting read only mount Only use for a CM corrupted medium Quantum LTFS User s Guide Quantum LTFS User s Guide Chapter 3 Using Quantum LTFS a Advanced help including standard FUSE options V or version Output version information and exit h OR help Display this help and exit 0 umask M Set file permissions octal o uid N Set file owner o gid N Set file group 4 Write files to the LTFS volume For example cp r root mnt 1tfs 5 Unmount the tape cartridge This flushes the data buffer of the file system to the tape cartridge and prepare for eject umount mnt ltfs or fusermount u mnt ltfs Note The umount or fusermount command will return immediately but the drive may still be busy writing cached data to tape Do not attempt to remove the tape cartridge power down the system or tape drive or delete the folder where the LTFS volume is mounted until all tape activity has finished Check the front panel LEDs and wait for them to stop flashing Attempting these actions before tape acti
9. move a folder in such a manner will result in an operation not permitted error and the operation will be ignored The user can still move a file within LTFS and the user can also move a folder from LTFS to non LTFS file system or vice versa Mac OS X s Spotlight will not display the files on LTFS as a result of search Quantum LTFS User s Guide m Chapter 4 Troubleshooting This chapter contains the following sections Shared libraries Using Quantum LTFS to check the cartridge General If problems occur during Quantum LTFS operation entries may be made in the system log e g var log messages on Red Hat systems Check for entries made with the service name Itfs Itfs unitfs and mkltfs all have command line options to report further details of the operations undertaken which may be of assistance when trying to troubleshoot problems If there is a problem with drive interaction Quantum LTFS will attempt to create a snapshot of the drive internal state at the time of failure OnLinux systems this will be stored in the system log directory e g var log and will take the form Itfs datestamp timestamp driveSerialNum svm On Mac OS X systems the snapshots are stored in the directory Library Logs LTFS Quantum LTFS User s Guide 27 Chapter 4 Troubleshooting General Shared libraries Drive connection Note Mac OS X version 10 7 Lion and later by default hides the us
10. to Use LTFS Mac GUI How to Use LTFS Mac Terminal Commands Usage details Quantum LTFS User s Guide 11 Chapter 3 Using Quantum LTFS How to use LTFS Linux To use Quantum LTFS 1 Ensure that usr local bin is in your command search path For example export PATH PATH usr local bin 2 Load a tape cartridge into the drive and then format it in LTFS format e g for Linux mkltfs d dev sto Note If the cartridge already has been formatted for LTFS you need to use the force reformat option f in some cases Linux example mkltfs d dev stO f mkltfs Options d name OR Tape device required device name For Linux use the device name such as dev stO s id OR Tape serial number 6 alphanumeric tape serial lt id gt ASCII characters n OR Tape volume name empty by default volume name name 12 Quantum LTFS User s Guide Chapter 3 Using Quantum LTFS r rule rule OR rules lt rule rule gt o OR no override Rules for choosing files to write to the index partition The syntax of the rule argument is size 1M size 1M name pattern size 1M name pattern1 pattern2 pattern3 A file is written to the index partition if it is no larger than the given size AND matches at least one of the name pat terns if specified The size argument accepts K M and G suffixes Name pat terns may contain the special characters
11. ER amat Zu Quantum User s Guide 6 67105 01 Rev G March 2013 Product of USA Quantum Corporation provides this publication as is without warranty of any kind either express or implied including but not limited to the implied warranties of merchantability or fitness for a particular purpose Quantum Corporation may revise this publication from time to time without notice COPYRIGHT STATEMENT 2013 Quantum Corporation All rights reserved Your right to copy this manual is limited by copyright law Making copies or adaptations without prior written authorization of Quantum Corporation is prohibited by law and constitutes a punishable violation of the law TRADEMARK STATEMENT Quantum the Quantum logo DLT DLTtape the DLTtape logo SuperLoader Scalar StorNext and DXi are registered trademarks of Quantum Corporation registered in the U S and other countries Preserving the World s Most Important Data Yours Backup Recovery Archive It s What We Do the DLT logo DLTSage Dynamic Powerdown FastSense FlexLink GoVault MediaShield Optyon Pocket sized Well armored SDLT SiteCare SmartVerify StorageCare Super DLTtape Quantum vmPRO and Vision are trademarks of Quantum LTO and Ultrium are trademarks of HP IBM and Quantum in the U S and other countries All other trademarks are the property of their respective companies Specifications are subject to change without notice ii Quantum User s Guide Contents
12. ESTROY all data on the cartridge Thus use the unltfs command only when you are sure that you want to erase the LTFS volume unltfs Options d devname lt dev gt Tape device required if not using the default device 0 for Mac OS y OR justdoit This option omits the normal verification steps and reformats without further prompting t OR trace Enable function call tracing only useful for debugging e OR eject Ejects the cartridge after an unmount command q OR quiet Suppresses all progress outputs h OR help Display this help and exit i OR config file Overrides the default configuration file b OR backend Specifies a different tape backend system x OR fulltrace 24 Displays debug information verbose Quantum LTFS User s Guide Usage details Quantum LTFS User s Guide Chapter 3 Using Quantum LTFS File permissions The Quantum LTFS application manages a common set of file permissions for all files and users file and directory ownership is not recorded to tape media The only permission that is tracked is write protect information Files or directories that are write protected will have permission bits set to 555 write enabled files and directories have permission set to 777 By default the user and group information is set to that of the current user this can be overridden by use of the o uid and o gid options to the LTFS
13. FS User s Guide Quantum LTFS User s Guide Chapter 4 Troubleshooting General k OR keep history Keep history at rollback Rollback q OR quiet Suppress informational messages a OR trace Enable function call tracing h OR help This help p OR advanced help Advanced help option 31 Chapter 4 Troubleshooting General 32 Quantum LTFS User s Guide Quantum LTFS User s Guide Appendix A Frequently Asked Questions This appendix provides answers to frequently asked questions for Quantum LTFS Q How do get Quantum LTFS A All application downloads and documentation are available from the website at www quantum com LTFS Q What are the minimum system requirements A Any server that fulfills the needs of the supported configurations detailed in Chapter 1 Supported configurations on page 4 Q Does Quantum LTFS support DDS DAT devices A No The application will only work with LTO drives Q Does Quantum LTFS support non Quantum tape drives A Quantum s version of LTFS has been validated to work with both the Quantum and HP LTO 5 and LTO 6 drives Quantum s LTFS also recog nizes other LTO vendor s LTO 5 and LTO 6 drives although Quantum does not perform complete testing on these drives Quantum s technical support is only equipped to provide support for Quantum LTFS using the Quantum drive Q Why doesn t Quantum LTFS work with my LTO 4 or earlier drives A
14. I Mounting the volume LTFS120151 Attempting to load the medium LTFS110311 Volume mounted successfully LTFS100231 LTFS volume information LTFS100311 Volume Name null LTFS18024I Volser Barcode LTFS10025I Volume UUID 1 09c7fcc7 27b4 4bd0 92b9 d4e77b87909a LTFS100261 Format Time 2013 01 15 10 09 23 685891000 PST LTFS10027I Block Size 524288 LTFS10028I Compression Enabled LTFS10029I Index Partition ID a SCSI Partition LTFS10030I Data Partition ID b SCSI Partition 1 LTFS14029I Ready to receive filesystem requests Be verbose Clear 7 Next step Use the volume unmount when done The Diagnostics screen is only used to display the output of the commands being run This screen is used exclusively to troubleshoot any LTFS issues How to Use LTFS Mac Note GUI application will guide you through the steps required to Terminal Commands select a tape drive load and format a tape cartridge and then mount the cartridge into the file system However command line tools are also installed and if you prefer you can use them instead of the GUI application In Mac OS X the root user is disabled by default Mac OS X LTFS commands require that the root user is enabled Instructions for enabling the root user in Mac OS X can be found at the following link http support apple com ht1528 To use Quantum LTFS 1 Ensure that usr local bin is in your command search path For example 20 Q
15. Specify the time to rollback Time value should be yyyy mm dd HH MM SS nanosec r OR rollback Rollback to the point specified by g or t n OR no rollback Do not roll back just verify the point specified by g or t default f OR full recovery Recover extra data blocks into directory Itfs lostandfound 29 Chapter 4 Troubleshooting General 30 z OR deep recovery Recover cartridge which has EOD missing Note Some blocks may be erased but can recover to a final unmount point which has an index version 2 0 0 or earlier Data written to tape before the final un mount point still can be recovered Blocks that were written when power to the drive was lost however are not recoverable Note The z or deep recovery option is applicable to drive firmware later than V30857000 This option requires index information from cartridge memory CM to recover as much data as possible CM corruptions can prevent the successful completion of this option 1 OR list rollback points List rollback points j OR erase history Erase history at rollback If the j option is utilized the Itfsck command erases all index files and appended data up to the designated rollback to generation Data newer than this generation cannot be recovered If the j option is not utilized any existing generation can be recovered even following a rollback operation Quantum LT
16. application File types The Quantum LTFS application does not support the creation of sym bolic links or hard links within the tape file system Attempting to create a link or copy a link to tape will result in a Function not implemented error If using the cp command to copy to tape the L option may be helpful to follow symlinks The Quantum LTFS application also does not support creation of special files and will report Function not implemented File names To maintain compatibility when copying files between multiple platforms it is strongly recommended that the following characters should not be used in Quantum LTFS for file names directory names or extended attributes lt gt Limitations When the tape cartridge is almost full further write operations will be prevented The free space on the tape e g from the df command will indicate that there is still some capacity available but that is reserved for updating the index when the tape is unmounted Future mounts of a cartridge that is almost full has passed the point at which early warning is reported will mount as Read Only to prevent further modifications which may not fit on tape This status is cleared when a cartridge is reformatted using mkltfs or when the volume is rolled back erasing history using Itfsck 25 Chapter 3 Using Quantum LTFS 26 MAC OS X only LTFS does not support moving a folder within LTFS Any attempt to
17. drives the following components are required e A drive firmware revision that supports dual partitioning The software package that contains the run time executable Either the MacFUSE 32 bit kernel mode only or FUSE for OS X kernel module 32 bit or 64 bit kernel mode The ICU package provided Note Quantum LTFS will check and tell you if your tape drive firmware needs updating To download and install Quantum LTFS with precompiled binaries 1 Before starting to install and use LTFS you must ensure that the either the MacFUSE module version 2 0 3 2 or FUSE for OS X module version 2 5 1 2 5 4 or later with MacFUSE Compatibility Layer is present and loaded Quantum LTFS User s Guide Quantum LTFS User s Guide Chapter 2 Installation and Configuration Mac OS X Installation and Configuration If the module is not present on your system you must first obtain and install it MacFUSE or OsxFUSE may be downloaded from the following location http code google com p macfuse Note MacFUSE has been discontinued so use OsxFUSE for recent releases of OSX FUSE for OS X may be downloaded from the following location http osxfuse github com Mount and open the Apple disk image dmg files Double click the enclosed package pkg files to install the module Note Currently Quantum only supports installations using the precompiled binaries To use precompiled utilities download the file
18. e just one user is copying files to or from the tape Multiple users or processes trying to write and or read at the same time will result in poor performance due to the sequential access nature of tape For the same reasons the tape drive should not be shared between different systems A single tape drive should be connected to a single host bus adaptor HBA The expected usage model is to transfer large files between systems by mounting the tape on one system writing the files un mounting mounting on the second system and reading the files Treating the tape volume as a true random access device for example frequently reading and updating individual files will not perform as well as streamlining large files to from tape The Quantum LTFS application will work in conjunction with graphical file explorer programs such as Nautilus on Linux or Finder on Mac OS X However because these types of applications tend to try to pre read files in the directory using the graphical explorer window may lead to poor performance Optimum performance will be enjoyed by using a terminal window and issuing shell commands to copy data view directory contents etc The Quantum LTFS application utilizes a block size of 512 KB Older Host Bus Adapters may not support that block size which would prevent being able to create or mount an LTFS volume Tape activity may continue for several minutes after un mounting an LTFS volume Do not attempt to re
19. e terms of the LGPL 2 1 license and can be downloaded from www quantum com LTFS How ever Quantum is not equipped to support customers who choose to download and build their own versions of the Quantum LTFS applica tion Q How do verify that Mac OS X is running with a 32 bit kernel A From a terminal window issue the following command uname a The command response should indicate i386 not x86 64 Q How do I modify Mac OS X to boot with a 32 bit kernel A From a terminal window issue the following command sudo systemsetup setkernelbootarchitecture i386 Reboot the system From a terminal window issue the following command uname a The command response should indicate i386 not x86 64 Q Under what conditions is LTFS log file not created and updated Quantum LTFS User s Guide Quantum LTFS User s Guide Appendix A Frequently Asked Questions A The LTFS log file may not be created and warning messages issued in either of the following cases The LTFS process does not have write permission for the log directory Resolution Run Itfs as root or use the log directory option to specify a directory for which the Itfs process does have the required write permissions Thelog directory does not exist Resolution Create the default log directory or use the log directory option to specify a directory for which the Itfs process does have the required write permissions Q The LTFS process will not start A LTFS requires t
20. er Library folder Users username Library or Library and thus is not displayed in Mac OS X Finder or by any other terminal command which lists folder contents There are several methods to display the user Library 1 For quick and temporary access to the user Library folder in Finder select Go Go to Folder or use Command Shift G and enter Library 2 For permanent access to the user Library folder enter the terminal command chflags nohidden Library 3 Enter the terminal command open Library which will access and display the user Library folder via Finder These files are not otherwise used by Quantum LTFS and they may safely be removed from the system if they are not needed for troubleshooting On some systems trying to execute the Itfs and mkltfs commands may result in an error message of the form libltfs so 0 cannot open shared object file No such file or directory To resolve this it is necessary to tell the linker loader how to locate the required dynamic library files There are several ways of doing this Add usr local lib to the environment variable LD LIBRARY PATH or As root Add usr local lib to the file etc Id so conf and then execute sbin Idconfig Refer to the man pages for Id so and Idconfig for further details Similar error messages may occur if one or more required shared libraries are not present on the system or are present but at the wrong revision The
21. hat a LTO 5 or later tape drive is powered on and prop erly connected to the system before it will start LTFS 35 Appendix A Frequently Asked Questions 36 Quantum LTFS User s Guide
22. his manual is written for Quantum LTFS operators and administrators Document Organization Following is a brief description of chapter contents Chapter 1 Quantum LTFS Overview provides an overview of the features benefits intended usage architecture and supported configuration Chapter 2 Installation and Configuration provides information about access installation and configuration Chapter 3 Using Quantum LTFS provides information about using LTFS for Linux and Mac OS X Chapter 4 Troubleshooting provides information about troubleshooting problems Appendix A Frequently Asked Questions provides answers to frequently asked questions Quantum LTFS User s Guide V Preface Contacting Quantum vi More information about this product is available on the Service and Support website at www quantum com support The Service and Support Website contains a collection of information including answers to frequently asked questions FAQs For further assistance or if training is desired contact Quantum United States 800 284 5101 toll free 949 725 2100 EMEA 00800 4 782 6886 toll free 49 6131 3241 1164 APAC 800 7826 8887 toll free 603 7953 3010 For additional contact information www quantum com support To open a Service Request www quantum com osr For the most updated information on Quantum Global Services please visit www qua
23. move the tape cartridge power down the system or tape drive or delete the folder where the LTFS volume is mounted until all tape activity has finished Check the front panel LEDs and wait for them to stop flashing Attempting these actions before tape activity has finished may cause corruption of the tape format Quantum LTO 5 or later tape drives are optimized for high speed data transfer For best results when copying data to or from an LTFS volume utilize a device which can sustain a transfer rate of at least 50 MB s Chapter 1 Quantum LTFS Overview Introduction Architecture Supported configurations Quantum LTFS is a user space application making use of the FUSE kernal mode subsystem included in Linux systems On the Apple Mac OS platform it uses either the MacFUSE module in 32 bit kernel mode only or FUSE for OS X in either 32 bit or 64 bit kernel mode Quantum LTFS supports LTO 5 or later Tape Drives with SAS interfaces Red Hat EL 5 Update 4 x86 or later Red Hat EL 5 Update 4 x64 or later SSE Linux Server 11 SP1 x86 or later SUSE Linux Enterprise Server 11 SP1 x64 or later Mac OS X 10 6 Snow Leopard or later 32 bit or 64 bit kernel mode Note See the Compatibility Matrix on www quantum com LTFS for the latest details on supported operating system and hardware configurations Quantum LTFS User s Guide m Chapter 2 Installation and Configuration This chapter helps you to i
24. mpts to write an index when a file is closed unmount LTFS attempts to write an index when the medium is ummounted 0 force_mount_no_eod Skips eod existence check when mounting read only mount Only use for a CM corrupted medium Advanced help including standard FUSE options V or version Output version information and exit h OR help Display this help and exit 0o umask M Set file permissions octal o uid N o gid N Set file owner Set file group 4 Write files to the LTFS volume For example cp r root mnt 1tfs 5 Unmount the tape cartridge This flushes the data buffer of the file system to the tape cartridge and prepare for eject umount mnt ltfs Quantum LTFS User s Guide 23 Chapter 3 Using Quantum LTFS Note The umount command will return immediately but the drive may still be busy writing cached data to tape Do not attempt to remove the tape cartridge power down the system or tape drive or delete the folder where the LTFS volume is mounted until all tape activity has finished Check the front panel LEDs and wait for them to stop flashing Attempting these actions before tape activity has finished may cause corruption of the tape format If at some time in the future you wish to remove the LTFS format from a cartridge so that it can be reused for a different purpose use the unltfs command Note that the unltfs command will IRRETRIEABLY D
25. nstall and configure Quantum LTFS and contains the following sections Linux Installation and Configuration e Mac OS X Installation and Configuration Linux Installation and Configuration When using Quantum LTFS with Quantum LTO 5 or later tape drives the following components are required Adrive firmware revision that supports dual partitioning Quantum LTFS will check and tell you if your tape drive firmware needs updating The software package that contains the run time executable this can be found at http www quantum com LTFS The FUSE kernel module and shared libraries Note xTalk version 6 4 1 1 or later provides a new LTFS check test that determines whether or not dual partitioning and LTFS are supported xTalk is not supported under Mac OS Quantum LTFS User s Guide 5 Chapter 2 Installation and Configuration Linux Installation and Configuration Downloading and To download and install Quantum LTFS installing Quantum 1 Before starting to install and use Quantum LTFS you must ensure LTFS that the FUSE kernel module is present and loaded To check whether FUSE is installed the following commands may be used For RHEL rpm qi fuse rpm qi fuse libs For SLES rpm qi fuse rpm qi libfuse2 f the module is not present on your system you must first obtain and then install it For RHEL 5 Update 4 or later The required FUSE packages are fuse and fuse libs version
26. ntum com support Quantum LTFS User s Guide Chapter 1 Quantum LTFS Overview This chapter provides and overview of Quantum LTFS Introduction Features Benefits Intended Usage Architecture Supported configurations Introduction This guide provides information about Quantum Linear Tape File System LTFS Software Quantum LTFS makes tape self describing file based and easy to use and provides users with the ability to use standard file operations on tape media for accessing managing and sharing files with an interface that behaves like a hard disk In addition Quantum LTFS provides the ability to share data across platforms as you would with a USB drive or memory stick Quantum LTFS User s Guide Chapter 1 Quantum LTFS Overview Introduction Note A firmware update may be required for LTO 5 or LTO 6 drives Quantum LTFS will check and tell you if your tape drive needs updating Firmware revision V3082 or greater is required Features Quantum LTFS includes the following features Provides all you need to use LTO 5 or later media as a disk Based on open source software subject to EULA terms and LGPL 2 1 requirements Precompiled application versions provided for supported platforms Full source code available Supported on Linux and MAC OS X Benefits In addition to the wide range of benefits that Quantum LTO 5 or later tape drives have to offer these drives with Linear Tape File S
27. orce reformat of existing LTFS volume normally prevented q OR quiet Suppress progress information and general messages t OR trace Enable function call tracing only useful for debugging h OR help This help p OR advanced Full help including advanced options help or advanced help 3 Mount the formatted tape cartridge mkdir mnt ltfs ltfs mnt ltfs Note Some operating systems require creating each folder or subfolder in separate commands For example mkdir mnt cd mnt mkdir ltfs cd ltfs Itfs Options o devname lt dev gt Tape device required if not using the default device 0 for Mac OS 0 LTFS work directory default tmp ltfs work_directory lt dir gt o trace Enable function call tracing only useful for debugging o eject Ejects the cartridge after an unmount command 22 Quantum LTFS User s Guide Chapter 3 Using Quantum LTFS 0 sync type type Specify sync type default time 5 type should be specified as follows time min LTFS attempts to write an index each min minutes Min should be the decimal number from 1 to 15372286728912 default min 5 Specifying an integer greater than 35791394 on 32 bit Linux systems will result in an error message and the value will not be accepted Therefore on 32 bit Linux systems the maximum value displayed for sync type field is the maxi mum allowed integer 35791394 close LTFS atte
28. rtridge Mount Volume Diagnostics Drive 0 Quantum LTOS HU1110FEk Use this Re scan for tape drives Next step Load a tape cartridge The Start Screen should display the available Quantum tape drive If there is no drive listed in the drop down menu click the Re scan for tape drives button Note If a tape drive still does not display after clicking the Re scan for tape drives button troubleshoot the drive itself 2 Once the tape drive is listed click the Prepare Cartridge button The Prepare Cartridge screen displays Quantum LTFS User s Guide 17 Chapter 3 Using Quantum LTFS Figure 2 Prepare Cartridge Screen eoo LTFS Manager Tape Drive Drive 0 Quantum LTOS HU1110FEKC e Volume Status LTFS volume loaded but not mounted Start POAC Mount Volume Diagnostics Physical control Logical control Load Format Eject Unformat Next step Select mount point and mount the volume d The Prepare Cartridge screen is used to prepare a tape for first use You can also use this screen to Load a tape to or Eject a tape from the drive 3 Click Format to get the tape ready for use with LTFS 4 Click Unformat to erase a tape completely for use with other applications Caution Using the Format and Unformat buttons completely erases all data from the tape 5 After the tape is loaded click the Mount Volume button The Mount Volume screen displays 18 Quantum LTFS User s G
29. uantum LTFS User s Guide Chapter 3 Using Quantum LTFS export PATH PATH usr local bin 2 Load a tape cartridge into the drive and then format it in LTFS format e g for Mac OS X mkltfs d e Note If the cartridge already has been formatted for LTFS you need to use the force reformat option f in some cases Mac OS X example mkltfs d f mkltfs Options d name OR device name s id OR tape serial id Tape device required For MacOS X use the instance number of the tape drive assigned sequentially by the system starting from O Tape serial number 6 alphanumeric ASCII characters n OR volume name lt name gt r lt rule rule gt OR rules lt rule rule gt Tape volume name empty by default Rules for choosing files to write to the index partition The syntax of the rule argument is size 1M size 1M name pattern size 1M name pattern1 pattern2 pattern3 A file is written to the index partition if it is no larger than the given size AND matches at least one of the name pat terns if specified The size argument accepts K M and G suffixes Name pat terns may contain the special characters 2 match any single character and match zero or more characters o OR no override Disallow mount time data placement policy changes Quantum LTFS User s Guide 21 Chapter 3 Using Quantum LTFS f OR force F
30. uide Chapter 3 Using Quantum LTFS Figure 3 Mount Volume Screen LTFS Manager Tape Drive Drive 0 Quantum LTOS HU1110FEKC E Volume Status Mounted and ready to use Start Prepare Cartridge YUTA IMI Diagnostics Volume name TFSvolume Mount read only v Eject after unmount Mount Unmount Next step Use the volume unmount when done The Mount Volume screen makes an LTFS tape visible for use in the Mac GUI 6 When finished with the tape click the Unmount button Wait until all tape motion to complete This can take several minutes before ejecting that tape using the eject button Caution Do not use the eject button on the appliance itself until the tape has been properly unmounted using the Unmount button on this screen Failure to do this will cause the tape to be corrupted and could result in data loss 7 When finished you can click the Diagnositcs button to display the Diagnostics screen Quantum LTFS User s Guide 19 Chapter 3 Using Quantum LTFS Figure 4 Diagnostic Screen eoo LTFS Manager Tape Drive Drive 0 Quantum LTOS HU1110FEKC E i Volume Status Mounted and ready to use Start Prepare Cartridge Mount Volume CLTFSISUSBI LTFS Format SpECLTIcation VeTS10n Z 0 U LTFS140631 Sync type is time Sync time is 300 sec LTFS20013I Drive type is Quantum LTOS serial number is HU111 FEKC firmware revision is 3182 LTFS1716 I Maximum device block size is 524288 LTFS118005
31. vity has finished may cause corruption of the tape format If at some time in the future you wish to remove the LTFS format from a cartridge so that it can be reused for a different purpose use the unltfs command Note that the unltfs command will DESTROY all data on the cartridge Thus use the unltfs command only when you are sure that you want to erase the LTFS volume unltfs Options d devname lt dev gt Tape device required if not using the default device dev stO Chapter 3 Using Quantum LTFS How to Use LTFS Mac GUI y OR justdoit This option omits the normal verification steps and reformats without further prompting t OR trace Enable function call tracing only useful for debugging e OR eject Ejects the cartridge after an unmount command q OR quiet Suppresses all progress outputs h OR help Display this help and exit i OR config file Overrides the default configuration file b OR backend Specifies a different tape backend system x OR fulltrace Displays debug information verbose To access the LTFS GUI on Mac OS 1 Click LTFS Manager from the Applications folder or your desktop The Start Screen displays Quantum LTFS User s Guide Chapter 3 Using Quantum LTFS Figure 1 Start Screen eoo LTFS Manager Tape Drive Drive 0 Quantum LTOS HU1110FEKC E Volume Status No cartridge present EN Prepare Ca
32. ystem LTFS functionality also deliver Faster access to data When a tape is mounted the files and directories stored on it appear on the desktop in the same way as a disk directory listing Simple drag and drop Quantum LTFS increases ease of use simply drag and drop files to and from the tape Compatibility across your environment Tape media written using Quantum LTFS is self describing so that data retrieval from tape is independent of any hardware or software platforms Increased data mobility Easily share content to increase data mobility tapes written with Quantum LTFS application can be exchanged more easily between users working on different operating systems using different software and in different locations A single storage media standard Unify organization wide file sharing with Quantum LTO 5 or later tape drives Tapes can move across libraries and vendors with the ease of video cassettes while files on tape can be accessed using straightforward drag and drop Quantum LTFS User s Guide Intended Usage Quantum LTFS User s Guide Chapter 1 Quantum LTFS Overview Introduction Quantum LTFS application presents the contents of the tape like a disk volume However it is important to bear in mind that it is not a true disk therefore there are some best practices to follow to ensure satisfactory performance and a good user experience Quantum LTFS is designed to work best in a single user environment wher
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