So far so good, but why stop here? So my question is, that can I use the R100 as a cold/hot standby and let it take over the job of the F810, if that should break hard some day? I understand, that I can not use it in a cluster setup, as the performance is rather different, but could it take over the IP adresses of the F810, export the same qtrees and just work, but of cause with reduced performance?
Karsten,
As I understand it, the R100/R150 come with NFS licenses so you can backup Unix hosts to it. You can also use it for your standby purposes, but understand you'd have to reboot all your Unix hosts to be able to mount it. Just moving the IP address to another host (even if the data is snapmirrored) would give you stale NFS filehandles.
There is a workaround but it involves editing the disk labels on your Netapps and I would not recommend it.
What is the required licenses to actually build this setup? And how close a mirror can I make it? Realtime?
This is the other problem. If your data is updated frequently, even snapmirroring every minute would leave differences between the F810 and R100. As far as I know, Netapp does not yet have synchronous mirrors working to an R100.
/Brian/ --