


RRDTUNE(1)                   rrdtool                   RRDTUNE(1)


NNNNAAAAMMMMEEEE
       rrdtool tune - Modify some basic properties of a Round
       Robin Database

SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
       rrrrrrrrddddttttoooooooollll ttttuuuunnnneeee _f_i_l_e_n_a_m_e [--------hhhheeeeaaaarrrrttttbbbbeeeeaaaatttt|----hhhh _d_s_-_n_a_m_e:_h_e_a_r_t_b_e_a_t]
       [--------mmmmiiiinnnniiiimmmmuuuummmm|----iiii _d_s_-_n_a_m_e:_m_i_n] [--------mmmmaaaaxxxxiiiimmmmuuuummmm|----aaaa _d_s_-_n_a_m_e:_m_a_x]
       [--------ddddaaaattttaaaa----ssssoooouuuurrrrcccceeee----ttttyyyyppppeeee|----dddd _d_s_-_n_a_m_e:_D_S_T]
       [--------ddddaaaattttaaaa----ssssoooouuuurrrrcccceeee----rrrreeeennnnaaaammmmeeee|----rrrr _o_l_d_-_n_a_m_e:_n_e_w_-_n_a_m_e]

DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
       The tune option allows you to alter some of the basic
       configuration values stored in the header area of a Round
       Robin Database (RRRRRRRRDDDD).  All these tunable parameters
       together decide when data fed into an RRRRRRRRDDDD is to be
       regarded as invalid. Invalid data is entered into the
       database as *UNKNOWN*.

       The main application of the ttttuuuunnnneeee function is to relax the
       validation rules on an RRRRRRRRDDDD. This allows to fill a new RRRRRRRRDDDD
       with data available in larger intervals than what you
       would normally want to permit.

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

       --------hhhheeeeaaaarrrrttttbbbbeeeeaaaatttt|----hhhh _d_s_-_n_a_m_e:_h_e_a_r_t_b_e_a_t
               modify the _h_e_a_r_t_b_e_a_t of a data source. By setting
               this to a high value the rrd will accept things
               like one value per day ...

       --------mmmmiiiinnnniiiimmmmuuuummmm|----iiii _d_s_-_n_a_m_e:_m_i_n
               alter the minimum value acceptable as input from
               the data source.  Setting _m_i_n to 'U' will disable
               this limit.

       --------mmmmaaaaxxxxiiiimmmmuuuummmm|----aaaa _d_s_-_n_a_m_e:_m_a_x
               alter the maximum value acceptable as input from
               the data source.  Setting _m_a_x to 'U' will disable
               this limit.

       --------ddddaaaattttaaaa----ssssoooouuuurrrrcccceeee----ttttyyyyppppeeee|----dddd _d_s_-_n_a_m_e:_D_S_T
               alter the type DDDDSSSSTTTT of a data source.

       [--------ddddaaaattttaaaa----ssssoooouuuurrrrcccceeee----rrrreeeennnnaaaammmmeeee|----rrrr _o_l_d_-_n_a_m_e:_n_e_w_-_n_a_m_e]
               rename a data source

EEEEXXXXAAAAMMMMPPPPLLLLEEEE
       `rrdtool tune data.rrd -h in:100000 -h out:100000 -h
       through:100000'

       Set the minimum required heartbeat for data sources 'in',
       'out' and 'through' to 10000 seconds which is a little
       over one day in data.rrd.  This would allow to feed old



2002-02-26                    1.0.37                            1





RRDTUNE(1)                   rrdtool                   RRDTUNE(1)


       data from mrtg-2.0 right into rrdtool without generating
       *UNKNOWN* entries.

AAAAUUUUTTTTHHHHOOOORRRR
       Tobias Oetiker <oetiker@ee.ethz.ch>




















































2002-02-26                    1.0.37                            2


