Sydney, 2 September 2009 - TANDBERG today announced its PrecisionHD USB Camera is generally available for purchase through TANDBERG channel partners. The PrecisionHD USB Camera is optimised for TANDBERG Movi and Microsoft Office Communicator R2 and is the first webcam to offer 720p high definition with 30 frames per second for business-quality. Tandberg LTO-2 HH Drive ID: TANDBERG LTO-2 HH 5. The IBM device driver is required for IBM 3580 Gen-2, IBM 200/400GB LTO Gen-2 (P/N 71P9146), Dell PowerVault 110T LTO-2 and StorageTek Ultrium 2 (IBM).

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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.

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.

Generally any modern tape drive (i.e. after 2010) will work out of the box with Bacula using the standard Bacula Device specification in the bacula-sd.conf file.

Even if your drive is on the list below, please check the Tape Testingbtape1problemssection of the Bacula Enterprise Problem Resolution Guide 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:

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Tandberg Others Drivers

OSMan.MediaModelCapacity
-ADICDLTAdic Scalar 100 DLT100GB
-ADICDLTAdic Fastor 22 DLT-
FreeBSD 5.4-RELEASE-p1 amd64CertanceLTOAdicCertance CL400 LTO Ultrium 2200GB
--DDSCompaq DDS 2,3,4-
SuSE 8.1 ProCompaqAITCompaq AIT 35 LVD35/70GB
-HPTravan 4Colorado T4000S-
-HPDLTHP DLT drives-
-HPLTOHP LTO Ultrium drives-
-IBM??3480, 3480XL, 3490, 3490E, 3580 and 3590 drives-
FreeBSD 4.10 RELEASEHPDATHP StorageWorks DAT72i-
-OverlandLTOLoaderXpress LTO-
-Overland-Neo2000-
-OnStream-OnStream drives (see below)-
FreeBSD 4.11-ReleaseQuantumSDLTSDLT320160/320GB
-QuantumDLTDLT-800040/80GB
LinuxSeagateDDS-4Scorpio 4020/40GB
FreeBSD 4.9 STABLESeagateDDS-4STA2401LW20/40GB
FreeBSD 5.2.1 pthreads patched RELEASESeagateAIT-1STA1701W35/70GB
LinuxSonyDDS-2,3,4-4-40GB
LinuxTandberg-Tandbert MLR3-
FreeBSDTandberg-Tandberg SLR6-
SolarisTandberg-Tandberg SLR75-

There is a list of supported autochangersModels in the Supported Autochangers chapter of this document, where you will find other tape drives that work with Bacula.

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.

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 Tape testingFreeBSDTapesproblemssection of Bacula Enterprise Problem Resolution Guide for important information on how to configure your tape drive for compatibility with Bacula Enterprise.

For information on supported autochangers, please see the Autochangers Known to Work with BaculaModels section of the Supported Autochangers chapter of this manual.

JobsTandberg others driver jobTandberg Others Driver 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.

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Tandberg

Tandberg Others Driver Job

Media TypeDrive TypeMedia CapacityTransfer Rate
DDS-1DAT2 GB?? GB/hr
DDS-2DAT4 GB?? GB/hr
DDS-3DAT12 GB5.4 GB/hr
Travan 40Travan20 GB?? GB/hr
DDS-4DAT20 GB11 GB/hr
VXA-1Exabyte33 GB11 GB/hr
DAT-72DAT36 GB13 GB/hr
DLT IVDLT800040 GB22 GB/hr
VXA-2Exabyte80 GB22 GB/hr
Half-high Ultrium 1LTO 1100 GB27 GB/hr
Ultrium 1LTO 1100 GB54 GB/hr
Super DLT 1SDLT 220110 GB40 GB/hr
VXA-3Exabyte160 GB43 GB/hr
Super DLT ISDLT 320160 GB58 GB/hr
Ultrium 2LTO 2200 GB108 GB/hr
Super DLT IISDLT 600300 GB127 GB/hr
VXA-4Exabyte320 GB86 GB/hr
Ultrium 3LTO 3400 GB216 GB/hr

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