As far as I understand the structur of CEPH the answer is No. The CRUSH Algorithm decides when and how data gets written. Original research paper about CRUSH: http://ceph.com/papers/weil-crush-sc06.pdf High level description of the CRUSH map inside CEPH http://docs.ceph.com/docs/master/rados/operations/crush-map/ CEPH architecture overview (including CRUSH) http://docs.ceph.com/docs/master/architecture/ - David On 23.11.2015 15:44, louis wrote:
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