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| vm:proxmox:ceph:performance [2026/06/07 21:12] – niziak | vm:proxmox:ceph:performance [2026/06/07 21:13] (current) – niziak | ||
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| Ceph is build for scale and works great in large clusters. In small cluster every node will be heavily loaded. | Ceph is build for scale and works great in large clusters. In small cluster every node will be heavily loaded. | ||
| - | * ceph ensure data safety - it waits for data to be written to medium | + | * ceph ensure data safety - it waits for data to be written to medium on all replicas. Use enterpise SSDs with battery PLP (Power Loss Protection) to reduce latency. Some people reports 8x speed increase. |
| * adapt PG to number of OSDs to spread traffic evenly | * adapt PG to number of OSDs to spread traffic evenly | ||
| * use '' | * use '' | ||