Hi Christoph, > After reading lots of tutorials I am still not very comfortable with the > whole setup. My first reaction is that it is quite fragile instead of > high available. It works very smooth once set up properly. > I have several questions but the most important for me is: > > What happens if the RAID storage on which drbd works fails on one node? I assume and hope you have two different storages between which you replicate. If one fails, nothing happens. The current active node will then stay active, but access the data from the second node via network. Just the drbd will go into a warning state (which you can check in /proc/drbd then). If both fail of course everything is gone. > Will the system seamlessly migrate to the unaffected node? No, not to my experience. > After fixing the RAID storage, reinitialization of it and a restart of > the broken node, will the system recover automatically? Will drbd > recognize that it has do replicate the whole data and perform this? Or > is manual intervention necessary? This also happened to me once and I had to sync it manually with drbdadm after recovery.
Regards, Felix
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