Hello all, I am evaluating moving our Cloudstack deployments away from XCP to KVM. Knowledge aside, let’s assume we are competent in both areas and there is no skill gap. What I am looking for are real-world observations when using KVM over XCP.
Here are the reasons we are looking at this: Our current cluster is small. We are a new IaaS provider, and we are running XCP backed by a traditional HA-NAS using NFS. We started evaluating CEPH, which has been going fine in our lab testing. However, because XCP does not fully support RBD, we are using multi-path iSCSI gateways. However, Ceph can be problematic and brings with it its own set of concerns and challenges. This is where we started looking at Linstor. So, my question is, what are the communities' thoughts on comparing these technologies? XCP on iSCSI backed by Ceph or KVM using Linstor, or maybe even straight Ceph? I understand this is a very big question that can and will have many factors to consider. I am mainly looking for general thoughts on the subject, not a deep dive. We are now setting up a small three-node KVM/Linstor cluster for the POC. Thank you for any thoughts you may have on this. Regards, Marty
