RRDTUNE(1) rrdtool RRDTUNE(1) NNAAMMEE rrdtool tune - Modify some basic properties of a Round Robin Database SSYYNNOOPPSSIISS rrrrddttooooll ttuunnee _f_i_l_e_n_a_m_e [----hheeaarrttbbeeaatt|--hh _d_s_-_n_a_m_e:_h_e_a_r_t_b_e_a_t] [----mmiinniimmuumm|--ii _d_s_-_n_a_m_e:_m_i_n] [----mmaaxxiimmuumm|--aa _d_s_-_n_a_m_e:_m_a_x] [----ddaattaa--ssoouurrccee--ttyyppee|--dd _d_s_-_n_a_m_e:_D_S_T] [----ddaattaa--ssoouurrccee--rreennaammee|--rr _o_l_d_-_n_a_m_e:_n_e_w_-_n_a_m_e] DDEESSCCRRIIPPTTIIOONN The tune option allows you to alter some of the basic con­ figuration values stored in the header area of a Round Robin Database (RRRRDD). All these tunable parameters together decide when data fed into an RRRRDD is to be regarded as invalid. Invalid data is entered into the database as *UNKNOWN*. The main application of the ttuunnee function is to relax the validation rules on an RRRRDD. This allows to fill a new RRRRDD 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 RRRRDD you want to tune. ----hheeaarrttbbeeaatt|--hh _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 ... ----mmiinniimmuumm|--ii _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. ----mmaaxxiimmuumm|--aa _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. ----ddaattaa--ssoouurrccee--ttyyppee|--dd _d_s_-_n_a_m_e:_D_S_T alter the type DDSSTT of a data source. [----ddaattaa--ssoouurrccee--rreennaammee|--rr _o_l_d_-_n_a_m_e:_n_e_w_-_n_a_m_e] rename a data source EEXXAAMMPPLLEE "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 data from mrtg-2.0 right into rrdtool without generating *UNKNOWN* entries. AAUUTTHHOORR Tobias Oetiker 1.0.35 2001-02-21 RRDTUNE(1)