инструменты LVM2 (LVM2 tools)
Диагностика (Diagnostic)
All tools return a status code of zero on success or non-zero on
failure. The non-zero codes distinguish only between the broad
categories of unrecognised commands, problems processing the
command line arguments and any other failures. As LVM remains
under active development, the code used in a specific case
occasionally changes between releases. Message text may also
change.
