2018-03-29 11:39 GMT+02:00 David Rabel <[email protected]>: > Hi there. > > Are there possibilities to prevent osd-split-brain in a replicated pool > with an even size? Or do you always have to make min_size big enough to > cover this? > > For example a replicated pool with size 4: Do i always have to set the > min_size to 3? Or is there a way to use min_size 2 and use some other > node as a decision maker in case of split brain? >
min_size doesn't arbitrate decisions other than "can I write if there are only X visible copies?", where X needs to be > min_size to allow writes. It doesn't control any logic, it controls the risk level you want to take. -- May the most significant bit of your life be positive.
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