I have a 3 node ceph proxmox cluster for storage with node1 7*143GB ssds, node2 7*143 ssds, node3 7*218 ssds. Now I have read through the http://docs.ceph.com/docs/jewel/architecture/#mapping-pgs-to-osds however it is not 100% clear to me if I can create a VM with hard disk size 300GB using Ceph pool. Please note that largest single ssd i have is 218GB big. From the documentation, it looks like it stores objects in placement groups and placement groups in separate nodes and drives. If that is the case then I want to say, it shouldn't be a problem.
Does anyone has insight on this? Thanks in advance.