Inhaltsverzeichnis
Werbung
Datensicherung
ting it in the (MTIOCGET ioctl). The default is Yes. If you must set
this to No, Bacula will do the proper file position determination,
but it is very unfortunate because it means that tape movement
is very inefficient.
• BSF am Medienende: If No, the default, no special action is taken
by Bacula with the End of Medium (end of tape) is reached
because the tape will be positioned after the last EOF tape mark,
and Bacula can append to the tape as desired. However, on
some systems, such as FreeBSD, when Bacula reads the End
of Medium (end of tape), the tape will be positioned after the
second EOF tape mark (two successive EOF marks indicated End
of Medium). If Bacula appends from that point, all the appended
data will be lost. The solution for such systems is to specify BSF
at EOM which causes Bacula to backspace over the second EOF
mark. Determination of whether or not you need this directive
is done using the test command in the btape program.
• Doppelte Medienende-Markierung: If Yes, Bacula will write two
end of file marks when terminating a tape -- i.e. after the last
job or at the end of the medium. If No, the default, Bacula will
only write one end of file to terminate the tape.
• Laufwerk kann Records zurückspulen: If Yes, the archive device
supports the MTBSR ioctl to backspace records. If No, this call
is not used and the device must be rewound and advanced
forward to the desired position. Default is Yes for non random-
access devices. This function if enabled is used at the end of a
Volume after writing the end of file and any ANSI / IBM labels to
determine whether or not the last block was written correctly. If
you turn this function off, the test will not be done. This causes
no harm as the re-read process is precautionary rather than
required.
• Laufwerk kann Dateien zurückspulen: If Yes, the archive device
606
Werbung
Inhaltsverzeichnis
