утилита инкрементного дампа файловой системы XFS (XFS filesystem incremental dump utility)
Диагностика (Diagnostic)
The exit code is 0 on normal completion, non-zero if an error
occurs or the dump is terminated by the operator.
For all verbosity levels greater than 0 (silent) the final line
of the output shows the exit status of the dump. It is of the
form:
xfsdump: Dump Status: code
Where code takes one of the following values: SUCCESS (normal
completion), INTERRUPT (interrupted), QUIT (media no longer
usable), INCOMPLETE (dump incomplete), FAULT (software error),
and ERROR (resource error). Every attempt will be made to keep
both the syntax and the semantics of this log message unchanged
in future versions of xfsdump. However, it may be necessary to
refine or expand the set of exit codes, or their interpretation
at some point in the future.
The message ``xfsdump: WARNING: unable to open directory: ino N:
Invalid argument'' can occur with filesystems which are actively
being modified while xfsdump is running. This can happen to
either directory or regular file inodes - affected files will not
end up in the dump, files below affected directories will be
placed in the orphanage directory by xfsrestore.
