Интерактивная система просмотра системных руководств (man-ов)
amtape (8)
>> amtape (8) ( Linux man: Команды системного администрирования )
NAME
amtape - user interface to Amanda tape changer controls
SYNOPSIS
amtapeconfigcommand
[
command options
]
DESCRIPTION
Amtape
performs tape changer control operations.
It uses the underlying tape changer script defined by the
tpchanger
option for a particular Amanda
configuration as specified by the
config
argument.
Tape changers maintain a notion of the
current
and
next
slot for each configuration.
These may or may not correspond to an actual physical state of the device,
but do tend to minimize searching through the tape storage slots.
If the desired tape is in the current slot,
it is likely the next tape needed is in the next slot
rather than at some random position in the storage slots.
See the
amanda(8)
man page for more details about Amanda.
COMMANDS
reset
Reset the tape changer to a known state.
The
current
slot is set to the
first
slot.
Other device-specific side effects may occur.
Some gravity stackers need to be reset to the top position by hand.
This command notifies Amanda the stacker is back in that position.
eject
If a tape is loaded in the drive, it is ejected and returned to the
slot from which it was loaded.
clean
If a cleaning tape is defined for the changer,
it is used to clean the drive.
show
Show the contents of all slots.
This can be slow.
labellabel
Search for and load the Amanda tape with label
label.
taper
Perform the
taper
scan algorithm.
Load the next tape in the configuration's tape sequence,
or a fresh tape with a suitable label.
device
Display the name of the current tape device on
stdout.
current
Display the current slot.
update
Update the changer label database, if it has one,
to match the tapes now available.
slotslot
Eject any tape in the drive and put it away,
then load the tape from slot
slot
and reset
current.
slot current
Eject any tape in the drive and put it away,
then load the tape from the current slot.
slot prev
Eject any tape in the drive and put it away,
then load the tape from the previous slot and reset
current.
slot next
Eject any tape in the drive and put it away,
then load the tape from the next slot and reset
current.
slot first
Eject any tape in the drive and put it away,
then load the tape from the first slot and reset
current.
slot last
Eject any tape in the drive and put it away,
then load the tape from the last slot and reset
current.
slot advance
Eject any tape in the drive and put it away.
Advance
current
to the next tape, but do not load it.
This is useful with non-gravity stackers to unload the last tape used
and set up Amanda for the next run.
If you just use
eject,
the current tape will be mounted again in the next run,
where it will be rejected as being still in use,
ejected and the next tape requested.
Using
slot next
followed by
eject
does an unnecessary mount.
Note: most changers optimize the
slot
commands to not eject the loaded tape if it is the one being requested.
AUTHOR
James da Silva <jds@cs.umd.edu>
University of Maryland, College Park
