The Ftape Installation and Usage Guide - Ioctls
MTIOCTOP
The MTIOCTOP
ioctl provides control over various tape operations.
The following list may be incomplete and covers at most those operations
that are supported by ftape-4.04. Please refer also to the file
`/usr/include/sys/mtio.h
'. Most of the operations below can be sent
to a tape device using the mt
program. There is probably a
version of this program installed on your computer already, however,
there is a modified version of the GNU mt
program contained in
the ftape-tools
package(1). Please refer also to the manual page of the mt
program (`man 1 mt
') or to the documentation contained in the
ftape-tools
package in case you are
using. See Ftmt (info file ftape-tools).
Some tape operations take an optional numerical argument which defaults
to `1
' when using the mt
program. Each of the explanations
below contains a (very short) example how to use the mt
program
to send the command to the drive.
MTRESET | Reset drive and driver. |
MTFSF | Skip forward over file marks. |
MTBSF | Skip backward over file marks. |
MTFSR | Skip forward over tape records. |
MTBSR | Skip backwards over tape records. |
MTWEOF | Write file mark. |
MTREW | Rewind cartridge. |
MTOFFL | Put drive off-line. |
MTNOP | No op, set status. |
MTRETEN | Retension the cartridge. |
MTBSFM | Skip backwards over file marks. |
MTFSFM | Skip forward over tape file marks. |
MTEOM | Skip to end of recorded area. |
MTERASE | Erase cartridge. |
MTSETBLK | Setting the block size (ftape-3.04d (and later versions)). |
MTSETDENSITY | Setting the debugging level (ftape-3.04d (and later versions)). |
MTSEEK | Seek to absolute tape block (ftape-3.04d (and later versions)). |
MTTELL | Request tape position, buggy. |
MTSETDRVBUFFER | Set amount of driver memory (ftape-3.04d (and later versions)). |
MTLOCK | Lock the tape door (Ditto Max ). |
MTUNLOCK | Unlock the tape door (Ditto Max ). |
MTLOAD | Unimplemented (Ditto Max ). |
MTUNLOAD | Unimplemented (Ditto Max ). |
MTCOMPRESSION | Switch compression on and off (ftape-3.04d (and later versions)). |
MTSETPART | Set the active partition (Ditto Max ). |
(1) You can download the ftape-tools
package from the
Ftape home page
or from ftp://sunsite.unc.edu/pub/Linux/kernel/tapes/
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