Problem converting 32 bit disk-rrd's to 64 bit

[Hermann-Josef Beckers]

Hello,

not exactly a hobbit problem, but as I am using rrd only with hobbit:

I am converting my old hobbit/xymon server to a new one  Copying just the 
data/rrd directory
results in the message "ERROR: This RRD was created on another 
architecture". 
So I used "rrdtool dump <file>.rrd > <file>.xml" on the old 
and "rrdtool restore  <file>.xml <file>.rrd -f" on the new server. Using 
the "--no-header" 
option to rrddump makes no difference. No error messages during the 
restore and no 
errors when I call the web pages. 

The new disk values in the rrd graphs are only 1/10 of the original size, 
e. g. a disk which is 
82 % filled, shows up with only  8 %.. The text lines generated from the 
client data are correct. 

Relevant data from the old server:
rrdtool -v
RRDtool 1.0.49  Copyright 1997-2004 by Tobias Oetiker <tobi at oetiker.ch>
...
uname -a 
Linux ls0003.kreis-steinfurt.lokal 2.6.8.1-24mdk #1 Fri Jan 14 03:01:00 
MST 2005 i686 Intel(R) Pentium(R) 4 CPU 2.40GHz unknown GNU/Linux


Relevant data from the new server:
rrdtool -v
RRDtool 1.3.4  Copyright 1997-2008 by Tobias Oetiker <tobi at oetiker.ch>
...
uname -a
Linux lscopy02 2.6.27.21-0.1-xen #1 SMP 2009-03-31 14:50:44 +0200 x86_64 
x86_64 x86_64 GNU/Linux

Screenshots of the old/new hobbit/xymon-webpages available on request (2x 
~120K pdfs)

Any hints?
Hermann-Josef Beckers

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