Hi, I'm looking at converting an old Nutanix+VMware cluster to Ceph+Proxmox. It'll host a mix of a couple of hundred VMs - web servers, Active Directory, Elasticsearch clusters, postgres and mysql databases, software deployment servers, log forwarders, some stuff that I don't even know what it does - basically a grab bag of workloads. It'll be a 9 node cluster. CPU+RAM is a mix from 12 core Intel Haswell with 512GB to 18 core Intel Ice Lake with 1TB. NICs will be two dual-port 10GbE (total four ports) per node. Disks per node will be a mix of: HDD: 2x12TB + 1x8TB SSD: 2x3.84TB HDD: 1x12TB + 2x6TB + 1x8TB SSD: 1x7.68TB This will leave me with one slot in each node for a DB+WAL drive. Is either of these a clear winner? Smaller and faster, or bigger and slower? Micron 7450 MTFDKCB960TFR - 960GB - 85K random write IOPS - 2% of raw storage KIOXIA KCD6XLUL3T84 - 3.84TB - 60K random write IOPS - 8% of raw storage If there is a clear winner, are there any setup or tuning options I should know about to take full advantage of them? Thanks. Andrew