(tar.info.gz) Magnetic Tape Control
Info Catalog
(tar.info.gz) General-Purpose Variables
(tar.info.gz) Backup Parameters
(tar.info.gz) User Hooks
5.4.2 Magnetic Tape Control
---------------------------
Backup scripts access tape device using special "hook functions". These
functions take a single argument -- the name of the tape device. Their
names are kept in the following variables:
-- Backup variable: MT_BEGIN
The name of "begin" function. This function is called before
accessing the drive. By default it retensions the tape:
MT_BEGIN=mt_begin
mt_begin() {
mt -f "$1" retension
}
-- Backup variable: MT_REWIND
The name of "rewind" function. The default definition is as
follows:
MT_REWIND=mt_rewind
mt_rewind() {
mt -f "$1" rewind
}
-- Backup variable: MT_OFFLINE
The name of the function switching the tape off line. By default
it is defined as follows:
MT_OFFLINE=mt_offline
mt_offline() {
mt -f "$1" offl
}
-- Backup variable: MT_STATUS
The name of the function used to obtain the status of the archive
device, including error count. Default definition:
MT_STATUS=mt_status
mt_status() {
mt -f "$1" status
}
Info Catalog
(tar.info.gz) General-Purpose Variables
(tar.info.gz) Backup Parameters
(tar.info.gz) User Hooks
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