This plugin checks all volumes and sends an alarm if one or more do not have a SnapMirror
relation.
Volumes which are offline, restricted of unknown are skipped. You can set --verbose to
see which volumes are skipped.
To explicitly exclude one or several volumes you can use the arguments
--exclude=<regex> and/or --include=<regex>. Also specific vserver can be included or
excluded this way, since the vserver's name is prefixed to the instance-name and can be
matched using a pattern like --include=^vserv01:. The same way specific volumes like
all vol0 can be excluded (--exclude=:vol0$).