User`s guide

DLT MiniLibrary (TL891) - User’s Guide
E–6 EK-TL891-UG. A01
“rst” format
Special files
“rst”
(rewind on close) and
“nrst”
(no rewind on close) are
also built and reside in the
/dev
directory. For example, if the SCSI
target ID for the drive is 4 and
the drive is connected to the native SCSI
bus, then
“rst”
will be
“rst4, rst12, rst20,
and
rst28” and nrst
will
be
“nrst4, nrst12, nrst20, and nrst28”.
• rst4
and
nrst4
correspond to the 0x82 density mode (CT-IV,
native
format)
• rst12
and
nrst12
correspond to the 0x83 density mode (CT-IV,
compressed
format)
• rst20
and
nrst20
correspond to the 0x84 density mode (CT-IV,
native
format)
• rst28
and
nrst28
correspond to the 0x85 density mode (CT-IV,
compressed
format)
Where:
CT-IV = CompacTape IV Data Cartridge
E.2.1.5 Test
NOTE:
Verify that a cartridge is loaded into
the tape drive before running test.
To test the TL891 MiniLibrary, back up the
“passwd”
file to tape using
the “tar” command, as follows:
tar cvf /dev/rst4 /etc/passwd
The system responds with:
a /etc/passwd 1 blocks
Note that, depending on the size of the file, a different number of blocks
may be reported.