[rrd-users] Creating multiple DS in batch mode

Stephen Cheung stephen.cheung at hds.com
Wed Feb 25 00:51:56 MET 2004

Hi all,
I am trying to create multiple Data Sources (2048 - is there a limit?) for a
single rrd file, but I I can't figure out what the best way to do it
So instead of doing this 
    rrdtool create file.rrd --step 300 DS:ds1:600:U:U
DS:ds2:600:U:U.........DS:dsn:600:U:U RRA etc etc
I can do this 
    rrdtool create file.rrd --step 300 DS:$ds:600:U:U RRA etc etc #somehow
increment the $ds variable.  This is the bit I can't work out.
I know how to create multiple rrd files with individual DS, but that means
too many files
Also, I can't run multiple create commands because the original rrd file
gets overwritten!!
Any help would be appreciated

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