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(Answer) (Category) Linux on Dell systems FAQ-O-Matic : (Category) FreeBSD :
PowerVault External (112t) Tape Drives
FreeBSD 5.2.1-RELEASE and priors have contained Adaptec 39160 and 29160 support for quite some time. FreeBSD also supports SCSI Sequential access drives (tape drives) and can easily be used with a wide variety of DDS/DLT/etc tape solutions.

It is wise to search the freebsd.org mailing lists if using something new or a tape changer. Tape changers do work (122t) but since drivers are constantly being worked on, it is best to search and/or ask.

sa0 at ahc0 bus 0 target 1 lun 0 sa0: <ARCHIVE Python 06408-XXX 9050> Removable Sequential Access SCSI-3 device sa0: 80.000MB/s transfers (40.000MHz, offset 32, 16bit)

Is what a DDS4 inside a PowerVault 112t (1u tape enclosure) looks like to FreeBSD once properly configured. The 'mt' command can work with different tape density, compression, and tape options.

Many users have had good luck with http://www.bacula.org if not using an enterprise backup solution, tapeware, Veritas, or home brew'd script.
atr

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