_R_R_D_R_E_S_I_Z_E(1)                         rrdtool                        _R_R_D_R_E_S_I_Z_E(1)

NNAAMMEE
     rrdresize - alters the size of an RRA and creates a new .rrd file

SSYYNNOOPPSSIISS
     rrrrddttooooll rreessiizzee _f_i_l_e_n_a_m_e _r_r_a_-_n_u_m  GGRROOWW_|SSHHRRIINNKK _r_o_w_s

DDEESSCCRRIIPPTTIIOONN
     The rreessiizzee function is used to modify the number of rows in an RRRRAA.

     _f_i_l_e_n_a_m_ethe name of the RRRRDD you want to alter.

     _r_r_a_-_n_u_m the  RRRRAA  you  want to alter. You can find the number using rrrrddttooooll
             iinnffoo.

     GGRROOWW    used if you want to add extra rows to an RRA. The extra  rows  will
             be inserted as the rows that are oldest.

     SSHHRRIINNKK  used  if you want to remove rows from an RRA. The rows that will be
             removed are the oldest rows.

     _r_o_w_s    the number of rows you want to add or remove.

NNOOTTEESS
     The new .rrd file, with the modified RRAs,  is  written  to  the  file  rree‐‐
     ssiizzee..rrrrdd in the current directory.  TThhee oorriiggiinnaall ..rrrrdd ffiillee iiss nnoott mmooddiiffiieedd.

     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.

AAUUTTHHOORR
     Alex van den Bogaerdt <alex@vandenbogaerdt.nl>

1.10.0                             2026-05-23                       _R_R_D_R_E_S_I_Z_E(1)
