[rrd-users] Re: calculate traffic in Mbytes

Alex van den Bogaerdt alex at ergens.op.het.net
Tue May 11 13:25:04 MEST 2004

On Tue, May 11, 2004 at 01:01:16PM +0200, Andras Horvai wrote:

> I have rrds (see the rrdtool info output bellow) and I would like to calculate  the in and out
> traffic in Mbytes and not in Mbits/sec. Is this possible or should i measure in an other way, then how? 
> So I want to see the transferred (in/out) traffic in Mbytes on an interface and I need yearly archive and
> I need to calculate statistics quarterly.

If a year is 365 days and each day has 24 hours and each hour has 60
minutes of 60 seconds each, that makes 365*24*60*60=31536000 seconds.

If the stats are in megabits per second, and if you have an average of 1.0,
then 1.0 megabits are transfered in 1 second, 2.0 in 2, 3.0 in 3 and so on.
Keep going until you've reached 31536000.

Divide by eight to get Bytes in stead of bits.

Calculations are done using CDEF.  See the various tutorials.

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