damo2929's latest activity
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Ddamo2929 replied to the thread CEPH Erasure Coded Configuration: Review/Confirmation.I would recommend running ceph on it's own NIC's at least 40gb and NVMe if your IO heavy so that you have enough bandwidth for the ceph inter OSD traffic. as for every 1gb there is 2 x 1gb being generated for the additional replicas to be made.
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Ddamo2929 replied to the thread CEPH Erasure Coded Configuration: Review/Confirmation.In my current role for production sizing of ceph for customers I recommend 6 nodes with and ec of 4.2 which is still 66% usable you could run 3.2 with 5 servers at 60% usable. If you could add 2 servers you would get the resilience you need...
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Ddamo2929 replied to the thread CEPH Erasure Coded Configuration: Review/Confirmation.I started at my last employer with 3 nodes then expanded to 7 once we was passed the 12 month POC stage. it works fine, but you can only ever have 1 server out taking 2 out will cause the ceph to take all the ec pool placement groups offline. I...
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Ddamo2929 replied to the thread CEPH Erasure Coded Configuration: Review/Confirmation.the max you can do is 2+1 to give 0.66% efficiency and this is your only EC option since you only have 3 servers.