mtj(7)
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mtj Special File
Eclipse MV/family tape subsystem
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DESCRIPTION
An mtj tape subsystem consists of a tape controller with up to
two physical units on that controller. The models supported are
as follows:
Model # Description
6352 DC 1000 cartridge
6426 1/2" cartridge
E6341 1600 bpi 1/2" reel-to-reel streaming
A tape unit may be accessed directly via the special file nodes
in /dev/mt and /dev/rmt. These nodes are named in the form:
/dev/[r]mt/c<n>d<m>
where <n> is the hardware device code of the controller and <m>
is the unit on the controller. The nodes in /dev/mt provide
access as a block special device as described in mt(7). The
nodes in /dev/rmt provide access as a character special device as
described in rmt(7).
When accessed as a character special device via the nodes in
/dev/rmt, the maximum physical record size for the model 6352
tape drive is 16,384 bytes. For all other models listed above
the maximum is 32,768 bytes.
FILES
/dev/mt/*
/dev/rmt/*
SEE ALSO
mt(7), rmt(7)
DG/UX 4.00 Page 1
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