RRD Functions
 
Table of Contents
- rrd_create — Creates rrd database file
 - rrd_error — Gets latest error message.
 - rrd_fetch — Fetch the data for graph as array.
 - rrd_first — Gets the timestamp of the first sample from rrd file.
 - rrd_graph — Creates image from a data.
 - rrd_info — Gets information about rrd file
 - rrd_last — Gets unix timestamp of the last sample.
 - rrd_lastupdate — Gets information about last updated data.
 - rrd_restore — Restores the RRD file from XML dump.
 - rrd_tune — Tunes some RRD database file header options.
 - rrd_update — Updates the RRD database.
 - rrd_version — Gets information about underlying rrdtool library
 - rrd_xport — Exports the information about RRD database.