loaderinfo - report SCSI tape device info
loaderinfo -f <scsi-generic-device>
The loaderinfo command reads various information from SCSI tape
loaders. Its intended use is for high-level programs that are trying to
decide what the capabilities of a device are.
The following are printed:
Element Address Assignment Page:
This tells how many elements are in the loader, and what
their raw hardware addresses are.
Transport Geometry Descriptor Page:
Will display whether media is invertible or not (usable with
some optical jukeboxes for detirmining whether to "flip"
media after writing to the first side).
Device Capabilities Page
Currently will only display whether we can transfer between
slots (i.e. whether ’mtx transfer’ works).
Aside from the normal inquiry info, will also print out
whether we have a bar code reader (for loaders that support
the Exabyte extension for reporting presense of said reader).
The first argument, given following -f , is the SCSI generic device
corresponding to your tape loader. Consult your operating system’s
documentation for more information (for example, under Linux these are
generally start at /dev/sg0 under FreeBSD these start at /dev/pass0).
Under FreeBSD, ’camcontrol devlist’ will tell you what SCSI devices you
have, along with which ’pass’ device controls them. Under Linux, "cat
/proc/scsi/scsi" will tell you what SCSI devices you have. Under
Solaris 8, find /devices -name ’*changer*’ will display the device
names for your attached changers. Make sure to configure your ’sgen’
BUGS AND LIMITATIONS
This program has only been tested on Linux with a limited number of
loaders (Ecrix Autopack, Exabyte 220).
loaderinfo is currently being maintained by Robert Nelson
<firstname.lastname@example.org> as part of the ’mtx’ suite of
programs. The ’mtx’ home page is http://mtx.sourceforge.net and the
actual code is currently available there and via SVN from