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RRDRESIZE(1)			    rrdtool			  RRDRESIZE(1)

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 <alex@vandenbogaerdt.nl>

1.9.0				  2024-07-29			  RRDRESIZE(1)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=rrdresize&sektion=1&manpath=FreeBSD+Ports+15.0>

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