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VM / Hypervisor
Terms
- Hypervisors
- KVM
- Hyper-V
- ESXi
- OpenVZ
- KSM - Kernel Samepage Merging
Choice
- VMware ESXi
- Proxmox
- XCP-ng
- vSphere
- oVirt (RHEV)
- Xen
-
- Open source, free, no corporate support
- XenServer =⇒ Citrix Hypervisor
- XenServer is an enterprise-class, cloud-proven, virtualization platform that delivers all of the critical features needed for any server and datacenter virtualization implementation.
- XenServer is a Linux distribution that is based on the Xen hypervisor, the Linux kernel, and the CentOS Linux distribution and user tools.
- free version is limited
- windows management client
- XCP-ng
- (+) Nice Windows GUI Tool XCP-ng Center
- (-) No WEB UI
- (+) Xen Orchestra independent Web GUI: centralised management tool. Capable to manage multiple locations, moving VMs between locations.
- delta backups, continuous replication
- (-) Thin provisioning only on local EXT3/4 fs, NFS, File, XOSAN (VDI files)
- Block based devices only with THICK provisioning (local LVM, iSCSI, HBA)
- (-) experimental ZFS
-
- Proxmox
- (+) simple
- virtualization
- (+) KVM virtualization
- (+) native support for LXC
- (-) no docker support
- (+) Debian based - possible to do lots of unsupported things from OS
- (+) run on any HW
- (+) GPU/PCI passthrough
- (+) Clustering - one web interface to manage multiple nodes (but not separate locations)
- (+) CEPH, NFS, CIFS
- (+) ZFS
- (+) working memory ballooning
- (+) KSM