Hi, We plan to buy hardware for a new cluster ceph and would like some approbation on what we choose. 6 nodes DELL 6715 + 6 Powervault MD2412 enclosure For each node => 1 CPU AMD EPYC 9475F 3,65 GHz, 48C/96T, 256M Cache (400 W) RAM 16Gox16 = 256Go 4x 100GB NVIDIA MELLANOX 100GB HBA465e (externe, 22,5GB/s) 2 NVMe mixed 6,4To DBWAL 6 NVMe mixed 6,4To 5 NVMe read 15,36To for each enclosure => 12 HDD 20To HDD will be a replica 3 pool with the dbwal NVME mixed and read will be 2 differents pools (we will test replica 3 and EC to see which performance/storage efficency satisfy us the most) This cluster will be mostly use to store block (VM proxmox/kubernetes) and S3. The crushmap will be like so : 3 rooms with 2 nodes per room. So the point of failure can be for replica 3 => rooms and if we use EC 4+2 => host We saw that the thread needs for NVMe OSD are very expensive, does this CPU good enough to carry them ? MON and MGR will be spread across the cluster and RGW on virtual machine Thanks for your answer ! Vivien