Yep, I read this before. But It's not my case. If I do "rrdtool info 
pool.rrd" i have:
rrdtool info pool.rrd
filename = "pool.rrd"
rrd_version = "0003"
step = 86400
last_update = 1292457601
ds[ckb].type = "GAUGE"
ds[ckb].minimal_heartbeat = 172800
ds[ckb].min = 0.0000000000e+00
ds[ckb].max = NaN
ds[ckb].last_ds = "6128"
ds[ckb].value = 6.1280000000e+03
ds[ckb].unknown_sec = 0
rra[0].cf = "AVERAGE"
rra[0].rows = 1400
rra[0].cur_row = 324
rra[0].pdp_per_row = 1
rra[0].xff = 5.0000000000e-01
rra[0].cdp_prep[0].value = NaN
rra[0].cdp_prep[0].unknown_datapoints = 0

It's the "NaN" value that bother me. In the pool.xml file I see it 
everywhere. I suspect that the graph code cant obtain data form an NFS 
file system (my pool).
Am I right?

Thanks
Davo


On 01/10/2011 04:35 PM, Tyler J. Wagner wrote:
> On Mon, 2011-01-10 at 13:10 +0100, d.davolio AT mastertraining DOT it wrote:
>> Seems I have the same problem here, empty graph. I have a new Ubuntu
>> server 10.04LTS x86_64. The installation is new, the pool is stored on
>> an NFS share. Few weeks ago I changed the server from a Debian Etch x86
>> to the new one.
> rrd"
> I'm really starting to appreciate all the time this post has saved me.
>
> http://www.tolaris.com/2010/09/06/rrdtool-this-rrd-was-created-on-other-architecture/
>
> Regards,
> Tyler
>



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