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Klaus Aehlig authored
Add a design document describing how Ganeti will take care of N+1 redundancy in the presence of shared storage. As opposed to DRBD, instances using shared storage can be started on any node. Therefore, at no particular node we have to reserve memory---however, in total enough memory for any node to fail has to be reserved nevertheless. Signed-off-by: Klaus Aehlig <aehlig@google.com> Reviewed-by: Petr Pudlak <pudlak@google.com>
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