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Comparison

1,169 bytes added, 08:37, 3 June 2021
LXC can use ZFS as completely isolated disk subsystem for CTs
{{Note|This comparison doesn't include Docker, because Docker is not a virtualization solution. It automates the deployment of applications inside software containers, by providing an additional layer of abstraction and automation of operating-system-level virtualization.<ref>[https://en.wikipedia.org/wiki/Docker_(software) Wikipedia article about Docker]</ref>}}
 
 
== Disclaimer ==
 
The information regarding Virtuozzo 7 is provided by [http://www.virtuozzo.com Virtuozzo]. Here is the Virtuozzo's statement regarding this information:
 
:#The information contained herein is intended to outline general product direction and should not be relied upon in making purchasing decisions.
:#The content is for informational purposes only and may not be incorporated into any contract.
:#The information presented is not a commitment, promise, or legal obligation to deliver any material, code or functionality.
:#Any references to the development, release, and timing of any features or functionality described for these products remains at Virtuozzo’s sole discretion.
:#Product capabilities, timeframes and features are subject to change and should not be viewed as Virtuozzo commitments.
 
The information regarding all other solutions are taken by authors from public sources only. This information can be changed by any OpenVZ Wiki user without any notice and author's review or approval.
 
== Feature comparison of different virtualization solutions ==
! Feature
! Description
! OpenVZ (stable)! Virtuozzo &nbsp;6 (PCS 6)! Virtuozzo OpenVZ&nbsp;7! [https://virtuozzo.com/products/virtuozzo-containers/ Virtuozzo &nbsp;7 Plus]
! LXC
! Proxmox VE
|'''Hypervisor technology'''
|Technology that enables to run Virtual Machines.
|None{{No}}
|Parallels Desktop Monitor
|KVM
|KVM
|None{{No}}
|KVM
|Hyper-V
|KVM
|Xen
|-
|'''Windows guest OS additional support'''
|WHQL-signed drivers, SVVP certification
|N/A
|{{Yes}}
|{{No}}
|{{Yes}}
|{{Yes}}
|{{No}}
|{{Yes}}
|{{Yes}}
|{{Yes}}
|-
|'''Containers technology'''
|Linux containers
|LXC (moved from OpenVZ since 4.0)
|None{{No}}|None{{No}}|None{{No}}
|-
!colspan="11" align="left"|1.2. Memory
|{{Yes}}
|{{Yes}}
|{{Yes}}, with new VCMMD memory management|{{Yes}}, with new VCMMD memory management and different policies
|{{Yes}}
|{{Yes}}
|{{No}}
|{{Yes}}
|{{No}}
|-
|'''Online Memory Management for VM'''
|Ability to change amount of RAM for CT and VM without reboot
|{{No}}
|{{No}}
|{{Yes}}
|{{Yes}}
|N/A
|{{Yes}}
|{{Yes}}
|{{No}}
|{{No}}
|-
|'''Unified management tool for CTs and VMs'''
|Single tool for managing both containers and virtual machines (if applicable)
|NoneN/A|{{Yes}}|{{Yes}}|{{Yes}}|{{No}}|{{Yes}}|N/A|N/A|N/A|-|'''OpenStack integration'''|Integration with OpenStack components ([http://docs.openstack.org/developer/nova/support-matrix.html see details])|{{Yes}}, only Nova|{{Yes}}
|{{Yes}}
|{{Yes}}
|{{Yes}}
|None
|{{No}}
|None{{Yes}}|None{{Yes}}|None{{Yes}}
|-
|'''Central Management toolIntegrated GUI'''|Is centralized Centralized multi-server management available for this edition?
|{{Yes}}, 3rd party
|{{Yes}}, Parallels Virtual Automation (PVA)
|{{No}}
|{{Yes}}, PVA[https://www.virtuozzo.com/support/all-products/virtuozzo-automator.html Automator]
|{{Yes}}, 3rd party
|{{Yes}}
|-
!colspan="11"|2.2. Upgrade & Backup
|-
|'''Update Management'''
|Integrated patching mechanism for the virtual environments (Guest OS) / guest tools / templates
|No integrated update, YUM (Linux)
|No integrated update, YUM (Linux), WSUS (Windows)
|No integrated update, YUM (Linux), WSUS (Windows)
|No integrated update, YUM (Linux), WSUS (Windows)
|No integrated update, APT (Linux)
|No integrated update, YUM (Linux), WSUS (Windows)
|Yes (WSUS, SCCM, Virtual Machine Servicing Tool 2012 for offline VM update)
|No integrated update, YUM (Linux), WSUS (Windows)
|No integrated update, YUM (Linux), WSUS (Windows)
|-
|'''Live VE snapshot'''
|{{Yes}}
|{{Yes}}
|Offline, CRIU support is planned{{Yes}}
|{{Yes}}
|{{Yes}}
|{{No}} (only through snapshots)
|{{Yes}}
|{{YesNo}}(only through snapshots, new version is not finished yet)|{{YesNo}}(only through snapshots, new version is not finished yet)
|{{No}} (only through snapshots)
|{{Yes}} (vzdump)
|{{Yes}}
|{{Yes}}
|{{Yes}}|{{Yes}} (OpeVZ OpenVZ templates)
|{{Yes}}
|{{Yes}}
|{{Yes}}
|{{Yes}}
|{{YesNo}}, 3rd party tools
|{{No}}
|{{No}}, 3rd party tools
!colspan="11"|3.1. VE Mobility
|-
|'''Live Migration of VEs'''
|Ability to migrate virtual machines between hosts without perceived downtime
|{{Yes}}, but with no zero downtime
|{{Yes}}, KernalKernel-Level Migration|{{Yes}}, CRIUfor containers|{{Yes}}, CRIU|Offline, CRIU support is planned|{{Yes}}|{{Yes}}|{{Yes}}for containers
|{{Yes}}
|-
|'''Automated Live Migration (DRS)'''
|Ability to put host into maintenance mode which will automatically live migrate all virtual machines onto other available hosts so that the host can be brought shut down safely
|{{No}}
|{{No}}
|{{No}}
|{{Yes}}
|{{No}}
|{{No}}
|{{Yes}}
|{{Yes}}
|{{Yes}}
|-
|'''Storage Migration'''
|Integrated Power Management features Ability to automatically migrate vms onto fewer hosts and power off unused capacity (hosts), wake systems back up when required
|{{No}}
|{{No}}
|{{No}}
|{{No}}
|{{No}}
|{{No}}
|{{Yes}}
|{{Yes}}
|-
!colspan="11"|3.2. HA / DR
|-
|'''Cluster size'''
|Maximum number of hosts in the cluster/pool relationship and maximum number vms per cluster/pool (if specified)
|None
|32 hosts/cluster validated (100 hosts/cluster maximum) - PStorage limitation
|Not tested yet
|Not tested yet
|None
|32 nodes
|64 nodes
|200 nodes
|16 nodes
|-
|'''Integrated HA'''
|{{Yes}}
|{{Yes}}
|-
|'''Site Failover'''
|Integrated ability to (ideally live) migrate virtual machine data (virtual disk files) to different storage e.g. for array upgrades/migration and I/O management
|{{No}}
|{{No}}
|{{No}}
|{{No}}
|{{No}}
|{{No}}
|Manual
|{{No}}
|Integrated Disaster Recovery - manual
|-
!colspan="11" style="font-style:bold;background-color:gold;"|4. Network and Storage
|-
|'''Supported Storage'''
|Supported types of Storage (DAS: Direct Attached Storage, NAS: Network Attached Storage, FC: Fibre Channel, iSCSI, FCoE - Fibre Channel over Ethernetor SAN)
|DAS (EXT4)
|NAS (NFS), DAS (EXT4)
|NAS (NFS), DAS (EXT4)
|NAS (NFS), DAS (EXT4)
|SANDAS, NAS (NFS, ZFS), SAN (iSCSI), Ceph 
|DAS, NAS (SMB), SAN (iSCSI, FC, FCoE)
|DAS, NAS (NFS), SAN (iSCSI, FC, FCoE)
|'''Virtual Disk Format'''
|Supported format(s) of the virtual disks for the virtual machines
|CT - [[ploop]]|CT - [[ploop]], VM - [[ploop]]|CT - [[ploop]], VM - [[ploop]]\Qcow2|CT - [[ploop]], VM - [[ploop]]\Qcow2
|Any
|qcow2Qcow2, vmdk, raw
|vhdx, vhd, pass-though (raw)
|Qcow2, raw disk
|{{Yes}}
|{{Yes}}, depends on disk format (dm-thin)
|{{Yes}} (???), depends on underlying storage driver
|{{Yes}}
|{{Yes}}
|{{Yes}}
|-
|'''Virtual SANSoftware-defined Storage'''
|Enhanced storage capability e.g. providing a virtual SAN through virtualized 'local' storage
|{{No}}
|{{Yes}}, Virtuozzo Storage
|{{No}}
|{{Yes}}, Virtuozzo Storage
|{{Yes}}, Virtuozzo Storage
|{{Yes}}, Virtuozzo Storage
|{{Yes}}, but 3rd party (DRBD 9, Ceph, GlusterFS)
|{{Yes}}, but 3rd party (DRBD 9, Ceph, GlusterFS)
|{{Yes}}, but 3rd party (DRBD 9, Ceph, GlusterFS, sheepdog)
|{{Yes}}, Storage Spaces
|{{Yes}}, Red Hat Storage
|-
|'''Storage QoS'''
|Ability to control Quality of Service for Storage I/O or Throughput for virtual machinesCT/VM|{{NoYes}}|Only IOPs limits|Only IOPs limits|Only IOPs limits{{Yes}}
|{{No}}
|{{Yes}}
|{{No}}
|{{Yes}}, VMs only
|{{Yes}}
|{{Yes}}
|-
!colspan="11"|4.2. Network
|-
|'''Advanced Network Switch'''
|Centralized virtual network configuration (rather than managing virtual switches on individual hosts), typically with enhanced networking capabilities
|{{No}}
|{{No}}
|{{No}}
|{{No}}
|{{No}}
|{{Yes}}, Open vSwitch support
|{{Yes}}
|OpenStack Neutron Integration
|Open vSwitch integration
|-
|'''Network QoS'''
|{{Yes}}
|-
!colspan="11" style="font-style:bold;background-color:gold;"|5. Others – most of features are relevant only for Odin Virtuozzo editions
|-
|'''Memory deduplication for binary files'''
|{{No}}
|{{Yes}}, pfcache
|{{YesNo}}, pfcache
|{{Yes}}, pfcache
|{{No}}
|{{No}}
|NoneN/A|NoneN/A|NoneN/A
|-
|'''Completely isolated disk subsystem for CTs'''
|{{Yes}}, ploop
|{{Yes}}, ploop
|{{Yes}}, with LVMor ZFS|{{NoYes}}, LVM, ZFS, or loop devices|NoneN/A|NoneN/A|NoneN/A
|-
|'''API\SDK'''
|Integration with 3rd-party image catalog services of popular server applications and development environments that can be installed with one click.
|{{No}}
|{{Yes}} Application Image Catalog [https://virtuozzo.com/introducing-the-virtuozzo-application-catalog/ Virtuozzo Application Catalog]
|{{No}}
|{{No}}
|{{Yes}} (Bitnami)
|{{No}}
|{{Yes}} (Turnkey)
|None{{No}}|None{{No}}|None{{No}}|-|'''Kernel update without reboot'''|Integrated ability to upgrade kernel or install security patches without downtime.|{{No}}, only 3d party tools|{{Yes}}, Rebootless Kernel Update|{{No}}|{{Yes}} [https://readykernel.com/ ReadyKernel Service]|{{No}}, only 3d party tools|{{No}}, only 3d party tools|N/A|{{No}}, only 3d party tools|{{No}}, only 3d party tools
|-
|'''Open Stack integrationPower Panel'''|Driver A tool used for Open Stack Novamanaging particular virtual machines and containers by their end users.|{{No}}
|{{Yes}}
|{{No}}
|{{Yes}}
|{{No}}
|{{No}}
|{{No}}
|{{No}}
|{{No}}
|-
|'''Secure for using in public networks'''
|
|{{Yes}}
|{{Yes}}
|{{Yes}}
|(LXC and KVM supported through libvirt)
|{{Yes}}
|{{No}}<ref name="LXC security">[https://seclists.org/oss-sec/2015/q3/att-171/LxcSecurityAnalysis.txt LXC Security Analysis]</ref>, <ref name="Security issues and mitigations with lxc">[https://wiki.ubuntu.com/LxcSecurity Security issues and mitigations with LXC]</ref>
|{{No}}<ref name="LXC security">[https://seclists.org/oss-sec/2015/q3/att-171/LxcSecurityAnalysis.txt LXC Security Analysis]</ref>, <ref name="Security issues and mitigations with lxc">[https://wiki.ubuntu.com/LxcSecurity Security issues and mitigations with LXC]</ref>
|{{Yes}}
|{{Yes}}
|-
|'''Kernel maintenance'''
|Ability to upgrade kernel with minimal downtime.
|KernelCare service integration
|kernel rebootless update (vzreboot)
|KernelCare service integration
|kernel rebootless update (vzreboot)
|KernelCare service integration
|KernelCare service integration
|None
|KernelCare service integration
|KernelCare service integration
|-
|'''Power Panel'''
|A tool used for managing particular virtual machines and containers by their end users.
|{{No}}
|{{Yes}}
|{{No}}
|{{Yes}}
|None
|None
|None
|None
|None
|-
!colspan="11" style="font-style:bold;background-color:gold;"|6. Commercial
|{{Yes}}
|{{No}}
|{{No}}(but there is Open Source edition(oVirt))
|{{No}} (but there is Open Source edition)
|-
|{{Yes}}
|{{No}}
|{{NoYes}}
|{{Yes}}
|{{Yes}}
|Commercial support
|Both community and commercial support
|-
|'''EOL policy'''
|
|[[Releases|5 years of support]]
|[https://virtuozzo.com/support/server-lifecycle/ 7 years of support]
|TBD
|[https://virtuozzo.com/support/server-lifecycle/ 7 years of support]
|
|
|[https://support.microsoft.com/en-us/lifecycle/search/default.aspx?alpha=hyper-v 11 years of support]]
|
|
|-
|}
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