=head1 SYNOPSIS
-B<rrdtool> B<tune> I<filename>
-S<[B<--heartbeat>|B<-h> I<ds-name>:I<heartbeat>]>
+B<rrdtool> B<tune> I<filename>
+S<[B<--heartbeat>|B<-h> I<ds-name>:I<heartbeat>]>
S<[B<--minimum>|B<-i> I<ds-name>:I<min>]>
S<[B<--maximum>|B<-a> I<ds-name>:I<max>]>
S<[B<--data-source-type>|B<-d> I<ds-name>:I<DST>]>
The tune option allows you to alter some of the basic configuration
values stored in the header area of a Round Robin Database (B<RRD>).
-One application of the B<tune> function is to relax the
+One application of the B<tune> function is to relax the
validation rules on an B<RRD>. This allows to fill a new B<RRD> with
data available in larger intervals than what you would normally want
to permit. Be very careful with tune operations for COMPUTE data sources.
Alter the number of confidence bound violations that constitute a failure for
purposes of the FAILURES B<RRA>. This must be an integer less than or equal to
the window length of the FAILURES B<RRA>. This restriction is not verified by
-the tune option, so one can reset failure-threshold and window-length
+the tune option, so one can reset failure-threshold and window-length
simultaneously. Setting this option will reset the count of violations to 0.
=item S<B<--window-length> I<window-length>>
of smoothing is not data source specific. This means that utilizing
reset for one data source will delay running the smoothing algorithm
for all data sources in the file. This is unlikely to have serious
-consequences, unless the data being collected for the non-reset data sources
-is unusually volatile during the reinitialization period of the reset
+consequences, unless the data being collected for the non-reset data sources
+is unusually volatile during the reinitialization period of the reset
data source.
-Use of this tuning option is advised when the behavior of the data source
+Use of this tuning option is advised when the behavior of the data source
time series changes in a drastic and permanent manner.
=back
C<rrdtool tune data.rrd -h in:100000 -h out:100000 -h through:100000>
-Set the minimum required heartbeat for data sources 'in', 'out'
+Set the minimum required heartbeat for data sources 'in', 'out'
and 'through' to 10'000 seconds which is a little over one day in data.rrd.
This would allow to feed old data from MRTG-2.0 right into
RRDtool without generating *UNKNOWN* entries.
=head1 AUTHOR
-Tobias Oetiker <oetiker@ee.ethz.ch>
+Tobias Oetiker <tobi@oetiker.ch>