On 03/17/2011 01:35 PM, Christoph Bartoschek wrote: > Am 17.03.2011 10:20, schrieb Felix Reinel: >>> 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. > Do you have a hint on how to do this properly? I am looking at the book > by Schwartzkopff and the Tutorials from Linbit. His book is quite good, but online tutorials do the job as well I think. It's actually not too complicated. >>> 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). > Will pacemaker recognize it? Or do I have to monitor /proc/drbd myself? I did not set this up with pacemaker yet, only heartbeat. You can see a warning if I remember correctly, but to be safe I'd anyway recommend monitor the /proc/drbd in addition. I do this with Nagios.
Felix
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