NAME
rrdresize - alters the size of an RRA and creates a new .rrd file
SYNOPSIS
rrdtool
resize
filename
rra-num
GROW
|
SHRINK
rows
DESCRIPTION
The
resize
function is used to modify the number of rows in
an
RRA
.
filename
the name of the
RRD
you want to alter.
rra-num
the
RRA
you want to alter. You can find the number using
rrdtool info
.
GROW
used if you want to add extra rows to an RRA. The extra rows will be inserted
as the rows that are oldest.
SHRINK
used if you want to remove rows from an RRA. The rows that will be removed
are the oldest rows.
rows
the number of rows you want to add or remove.
NOTES
The new .rrd file, with the modified RRAs, is written to the file
resize.rrd
in the current directory.
The original .rrd file is not
modified
.
It is possible to abuse this tool and get strange results
by first removing some rows and then reinserting the same amount (effectively
clearing them to be Unknown). You may thus end up with unknown data in one
RRA while at the same timestamp this data is available in another RRA.
AUTHOR
Alex van den Bogaerdt <
mailto:alex@ergens.op.het.net
alex@ergens.op.het.net
>
