Hi List,
Each of my osd nodes has 5 network Gb adapters, and has many osds, one disk one osd. They are all connected with a Gb switch.
Currently I can get an average 100MB/s of read/write speed. To improve the throughput further, the network bandwidth will be the bottleneck, right?
I can't afford to replace all the adapters and switch with 10Gb ones. How can I improve the throughput based on current gears?
My first thought is to use bonding as we have multiple adapters. But bonding has performance cost, surely cannot multiplex the throughput. And it has dependency on the switch.
My second thought is to group the adapters and osds. For example, we have three adapters called A1, A2, A3, and 6 osds called O1, O2,..., O6. let O1 & O2 use A1 exclusively, O3 & O4 use A2 exclusively, O5 & O6 use A3 exclusively. So they are separated groups, each group has its own disks, adapters, which are not shared. Only CPU & memory resource is shared between groups.
Is it possible to do this with current ceph implementation?
Thanks for your time and any ideas!
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