NAME

       rrdfirst - Return the date of the first data sample in an RRA within an RRD

SYNOPSIS

       rrdtool first filename [--rraindex number]

DESCRIPTION

       The first function returns the UNIX timestamp of the first data sample entered into the
       specified RRA of the RRD file.

       filename
               The name of the RRD that contains the data.

       --rraindex number
               The index number of the RRA that is to be examined. If not specified, the index
               defaults to zero. RRA index numbers can be determined through rrdtool info.

AUTHOR

       Burton Strauss <Burton@ntopSupport.com>