(PECL rrd >= 0.9.0)
Tunes some RRD database file header options.
bool rrd_tune ( string $filename, array $options )
Change some options in the RRD dabase header file. E.g. renames the source for the data etc.
Parameters:
filename
RRD database file name.
options
Options with RRD database file properties which will be changed. See rrd tune man page for details.
Returns:
Returns TRUE on success, FALSE otherwise.
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