[rrd-users] rrdupdate

[rihad]

Simon Hobson wrote:
> At 13:45 +0400 25/12/07, rihad wrote:
>> Hi, how can I use rrdupdate to zero out certain older values stored by
>> mrtg (Interval: 5 minutes) ?
>>
>> # rrdtool update 10.11.12.13.rrd 1198568400:U:U
>> ERROR: illegal attempt to update using time 1198568400 when last update
>> time is 1198568934 (minimum one second step)
>> #
>>
>> No matter which older value I try I get that message.
> 
> You can't<period>
> 
> If you REALLY need to fiddle with your historical data, then you will 
> need to export the data, alter the values in the XML file, then 
> import that into a new database.
> 

Wow, absolutely amazing! So these are the hidden costs of MRTG -> 
rrdtool migration? :-) Thanks for the solution, though, I shall try that.