> Now i am more confused...... :-( > > CDP calculation: > > 0.5 times the amount of PDPs needed per CDP may be unknown. The RRAs > > need 1,6,24 and 288 PDPs per CDP. The RRA stores 600,700,775,3725 of > > these CDPs. > > > > Total time per RRA: > > The total time per RRA is the time per PDP (your --step time) multiplied > > with the amount of PDPs per CDP (steps) multiplied by the amount of CDPs. > > The numbers are: > > 60*1*600 == 36000 seconds == 10 hours > > 60*6*700 == 252000 seconds == 70 hours = 2 days 22 hours > > 60*24*775 == 1116000 seconds == 12 days 22 hours > > 60*288*3725 == 64368000 seconds == 745 days > > What does this mean????
What is it you don't understand? I specifically wrote how to do this calculation. As a formula: total_time = time_per_PDP * amount_of_PDPs_per_CDP * amount_of_CDPs > i thought that with 3725 i will have a five years rrd file..... There's *no* way I can come up with this number so explain. While you're doing that maybe we can see where you go wrong. For 5 years worth of data: 5 years would be 5 * 365 days + two extra = 1827 days. (The two extra days are for february 29th). 1827 days * 86400 seconds per day = 157852800 seconds. The amount of steps in the last PDP is 288. The amount of time per PDP is 60 So: total_time = time_per_PDP * amount_of_PDPs_per_CDP * amount_of_CDPs 157852800 = 60 * 288 * amount_of_CDPs 157852800 = 17280 * amount_of_CDPs 157852800/17280 = amount_of_CDPs amount_of_CDPs = 9135 -- __________________________________________________________________ / [EMAIL PROTECTED] [EMAIL PROTECTED] \ | work private | | My employer is capable of speaking therefore I speak only for myself | +----------------------------------------------------------------------+ | Technical questions sent directly to me will be nuked. Use the list. | +----------------------------------------------------------------------+ | http://faq.mrtg.org/ | | http://rrdtool.eu.org --> tutorial | +----------------------------------------------------------------------+ -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-users WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
