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-%%
-%%
-
-\chapter{Supported Tape Drives}
-\label{SupportedDrives}
-\index[general]{Drives!Supported Tape }
-\index[general]{Supported Tape Drives }
-
-Bacula uses standard operating system calls (read, write, ioctl) to
-interface to tape drives. As a consequence, it relies on having a
-correctly written OS tape driver. Bacula is known to work perfectly well
-with SCSI tape drivers on FreeBSD, Linux, Solaris, and Windows machines,
-and it may work on other *nix machines, but we have not tested it.
-Recently there are many new drives that use IDE, ATAPI, or
-SATA interfaces rather than SCSI. On Linux the OnStream drive, which uses
-the OSST driver is one such
-example, and it is known to work with Bacula. In addition a number of such
-tape drives (i.e. OS drivers) seem to work on Windows systems. However,
-non-SCSI tape drives (other than the OnStream) that use ide-scis, ide-tape,
-or other non-scsi drivers do not function correctly with Bacula (or any
-other demanding tape application) as of today (April 2007). If you
-have purchased a non-SCSI tape drive for use with Bacula on Linux, there
-is a good chance that it will not work. We are working with the kernel
-developers to rectify this situation, but it will not be resolved in the
-near future.
-
-Even if your drive is on the list below, please check the
-\ilink{Tape Testing Chapter}{btape1} of this manual for
-procedures that you can use to verify if your tape drive will work with
-Bacula. If your drive is in fixed block mode, it may appear to work with
-Bacula until you attempt to do a restore and Bacula wants to position the
-tape. You can be sure only by following the procedures suggested above and
-testing.
-
-It is very difficult to supply a list of supported tape drives, or drives that
-are known to work with Bacula because of limited feedback (so if you use
-Bacula on a different drive, please let us know). Based on user feedback, the
-following drives are known to work with Bacula. A dash in a column means
-unknown:
-
-\addcontentsline{lot}{table}{Supported Tape Drives}
-\begin{longtable}{|p{2.0in}|l|l|p{2.5in}|l|}
- \hline
-\multicolumn{1}{|c| }{\bf OS } & \multicolumn{1}{c| }{\bf Man. } &
-\multicolumn{1}{c| }{\bf Media } & \multicolumn{1}{c| }{\bf Model } &
-\multicolumn{1}{c| }{\bf Capacity } \\
- \hline {- } & {ADIC } & {DLT } & {Adic Scalar 100 DLT } & {100GB } \\
- \hline {- } & {ADIC } & {DLT } & {Adic Fastor 22 DLT } & {- } \\
- \hline {FreeBSD 5.4-RELEASE-p1 amd64 } & {Certance} & {LTO } & {AdicCertance CL400 LTO Ultrium 2 } & {200GB } \\
- \hline {- } & {- } & {DDS } & {Compaq DDS 2,3,4 } & {- } \\
- \hline {SuSE 8.1 Pro} & {Compaq} & {AIT } & {Compaq AIT 35 LVD } & {35/70GB } \\
- \hline {- } & {Exabyte } & {- } & {Exabyte drives less than 10 years old } & {- } \\
- \hline {- } & {Exabyte } & {- } & {Exabyte VXA drives } & {- } \\
- \hline {- } & {HP } & {Travan 4 } & {Colorado T4000S } & {- } \\
- \hline {- } & {HP } & {DLT } & {HP DLT drives } & {- } \\
- \hline {- } & {HP } & {LTO } & {HP LTO Ultrium drives } & {- } \\
- \hline {- } & {IBM} & {??} & {3480, 3480XL, 3490, 3490E, 3580 and 3590 drives} & {- } \\
- \hline {FreeBSD 4.10 RELEASE } & {HP } & {DAT } & {HP StorageWorks DAT72i } & {- } \\
- \hline {- } & {Overland } & {LTO } & {LoaderXpress LTO } & {- } \\
- \hline {- } & {Overland } & {- } & {Neo2000 } & {- } \\
- \hline {- } & {OnStream } & {- } & {OnStream drives (see below) } & {- } \\
- \hline {FreeBSD 4.11-Release} & {Quantum } & {SDLT } & {SDLT320 } & {160/320GB } \\
- \hline {- } & {Quantum } & {DLT } & {DLT-8000 } & {40/80GB } \\
- \hline {Linux } & {Seagate } & {DDS-4 } & {Scorpio 40 } & {20/40GB } \\
- \hline {FreeBSD 4.9 STABLE } & {Seagate } & {DDS-4 } & {STA2401LW } & {20/40GB } \\
- \hline {FreeBSD 5.2.1 pthreads patched RELEASE } & {Seagate } & {AIT-1 } & {STA1701W} & {35/70GB } \\
- \hline {Linux } & {Sony } & {DDS-2,3,4 } & {- } & {4-40GB } \\
- \hline {Linux } & {Tandberg } & {- } & {Tandbert MLR3 } & {- } \\
- \hline {FreeBSD } & {Tandberg } & {- } & {Tandberg SLR6 } & {- } \\
- \hline {Solaris } & {Tandberg } & {- } & {Tandberg SLR75 } & {- } \\
- \hline
-
-\end{longtable}
-
-There is a list of \ilink{supported autochangers}{Models} in the Supported
-Autochangers chapter of this document, where you will find other tape drives
-that work with Bacula.
-
-\section{Unsupported Tape Drives}
-\label{UnSupportedDrives}
-\index[general]{Unsupported Tape Drives }
-\index[general]{Drives!Unsupported Tape }
-
-Previously OnStream IDE-SCSI tape drives did not work with Bacula. As of
-Bacula version 1.33 and the osst kernel driver version 0.9.14 or later, they
-now work. Please see the testing chapter as you must set a fixed block size.
-
-QIC tapes are known to have a number of particularities (fixed block size, and
-one EOF rather than two to terminate the tape). As a consequence, you will
-need to take a lot of care in configuring them to make them work correctly
-with Bacula.
-
-\section{FreeBSD Users Be Aware!!!}
-\index[general]{FreeBSD Users Be Aware }
-\index[general]{Aware!FreeBSD Users Be }
-
-Unless you have patched the pthreads library on FreeBSD 4.11 systems, you will
-lose data when Bacula spans tapes. This is because the unpatched pthreads
-library fails to return a warning status to Bacula that the end of the tape is
-near. This problem is fixed in FreeBSD systems released after 4.11. Please see the
-\ilink{Tape Testing Chapter}{FreeBSDTapes} of this manual for
-{\bf important} information on how to configure your tape drive for
-compatibility with Bacula.
-
-\section{Supported Autochangers}
-\index[general]{Autochangers!Supported }
-\index[general]{Supported Autochangers }
-
-For information on supported autochangers, please see the
-\ilink{Autochangers Known to Work with Bacula}{Models}
-section of the Supported Autochangers chapter of this manual.
-
-\section{Tape Specifications}
-\index[general]{Specifications!Tape}
-\index[general]{Tape Specifications}
-If you want to know what tape drive to buy that will work with Bacula,
-we really cannot tell you. However, we can say that if you are going
-to buy a drive, you should try to avoid DDS drives. The technology is
-rather old and DDS tape drives need frequent cleaning. DLT drives are
-generally much better (newer technology) and do not need frequent
-cleaning.
-
-Below, you will find a table of DLT and LTO tape specifications that will
-give you some idea of the capacity and speed of modern tapes. The
-capacities that are listed are the native tape capacity without compression.
-All modern drives have hardware compression, and manufacturers often list
-compressed capacity using a compression ration of 2:1. The actual compression
-ratio will depend mostly on the data you have to backup, but I find that
-1.5:1 is a much more reasonable number (i.e. multiply the value shown in
-the table by 1.5 to get a rough average of what you will probably see).
-The transfer rates are rounded to the nearest GB/hr. All values are provided
-by various manufacturers.
-
-The Media Type is what is designated by the manufacturers and you are not
-required to use (but you may) the same name in your Bacula conf resources.
-
-
-\begin{tabular}{|c|c|c|c}
-Media Type & Drive Type & Media Capacity & Transfer Rate \\ \hline
-DDS-1 & DAT & 2 GB & ?? GB/hr \\ \hline
-DDS-2 & DAT & 4 GB & ?? GB/hr \\ \hline
-DDS-3 & DAT & 12 GB & 5.4 GB/hr \\ \hline
-Travan 40 & Travan & 20 GB & ?? GB/hr \\ \hline
-DDS-4 & DAT & 20 GB & 11 GB/hr \\ \hline
-VXA-1 & Exabyte & 33 GB & 11 GB/hr \\ \hline
-DAT-72 & DAT & 36 GB & 13 GB/hr \\ \hline
-DLT IV & DLT8000 & 40 GB & 22 GB/hr \\ \hline
-VXA-2 & Exabyte & 80 GB & 22 GB/hr \\ \hline
-Half-high Ultrium 1 & LTO 1 & 100 GB & 27 GB/hr \\ \hline
-Ultrium 1 & LTO 1 & 100 GB & 54 GB/hr \\ \hline
-Super DLT 1 & SDLT 220 & 110 GB & 40 GB/hr \\ \hline
-VXA-3 & Exabyte & 160 GB & 43 GB/hr \\ \hline
-Super DLT I & SDLT 320 & 160 GB & 58 GB/hr \\ \hline
-Ultrium 2 & LTO 2 & 200 GB & 108 GB/hr \\ \hline
-Super DLT II & SDLT 600 & 300 GB & 127 GB/hr \\ \hline
-VXA-4 & Exabyte & 320 GB & 86 GB/hr \\ \hline
-Ultrium 3 & LTO 3 & 400 GB & 216 GB/hr \\ \hline
-\end{tabular}
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