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== Disclaimer ==
The information regarding [[Virtuozzo]] 7 are 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 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.
[https://Trendyreplicas.com Replica Handbags] , [https://hectornfwk42198.blogolize.com Replica Handbags Blog]
== Feature comparison of different virtualization solutions ==
! Virtuozzo 6 (PCS 6)
! OpenVZ 7
! [https://virtuozzo.com/products/virtuozzo-containers/ Virtuozzo 7]
! LXC
! Proxmox VE
|'''Hypervisor technology'''
|Technology that enables to run Virtual Machines.
|None{{No}}
|Parallels Desktop Monitor
|KVM
|KVM
|None{{No}}
|KVM
|Hyper-V
|'''Windows guest OS additional support'''
|WHQL-signed drivers, SVVP certification
|NoneN/A
|{{Yes}}
|{{No}}
|{{Yes}}
|None{{Yes}}
|{{No}}
|{{Yes}}
|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}}
|None{{No}}
|{{Yes}}
|NoneN/A|NoneN/A|NoneN/A
|-
|'''OpenStack integration'''
|{{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}}, Virtual [https://www.virtuozzo.com/support/all-products/virtuozzo-automator.html Automator (coming soon)]
|{{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}} (OpenVZ templates)
|{{Yes}}
|{{Yes}}
|{{Yes}}
|{{YesNo}}, 3rd party tools
|{{No}}
|{{No}}, 3rd party tools
|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}}for containers
|{{Yes}}
|{{Yes}}
|{{Yes}}
|-
|'''DRS/Host Maintenance Mode'''
|Ability to put host into maintenance mode which will automatically live migrate all VEs onto other available hosts so that the host can be brought shut down safely
|{{No}}
|{{No}}
|{{No}}
|{{No}}
|{{No}}
|{{No}}
|{{Yes}}
|{{Yes}}
|{{Yes}}
|-
|'''Distributed Power Management'''
|Distributed Power Management features Ability to automatically migrate VEs 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 VEs 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
|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}}
|-
!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'''
|{{No}}
|{{No}}
|NoneN/A|NoneN/A|NoneN/A
|-
|'''Completely isolated disk subsystem for CTs'''
|{{Yes}}, ploop
|{{Yes}}, ploop
|{{Yes}}, with LVMor ZFS
|{{Yes}}, 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}} [https://virtuozzo.com/introducing-the-virtuozzo-application-catalog/ Virtuozzo Application Catalog]
|{{No}}
|{{Yes}} (Turnkey)
|None{{No}}|None{{No}}|None{{No}}
|-
|'''Kernel maintenanceupdate without reboot'''|Ability Integrated ability to upgrade kernel with minimal or install security patches without downtime.|KernelCare service integration{{No}}, only 3d party tools|kernel rebootless update (vzreboot){{Yes}}, Rebootless Kernel Update
|{{No}}
|{{Yes}} [https://readykernel.com/ ReadyKernel Service]
|KernelCare service integration{{No}}, only 3d party tools|KernelCare service integration{{No}}, only 3d party tools|NoneN/A|KernelCare service integration{{No}}, only 3d party tools|KernelCare service integration{{No}}, only 3d party tools
|-
|'''Power Panel'''
|{{No}}
|{{Yes}}
|None{{No}}|None{{No}}|None{{No}}|None{{No}}|None{{No}}
|-
|'''Secure for using in public networks'''
|{{Yes}}
|{{Yes}}
|{{No}}<ref name="LXC security">[https://serviceseclists.ait.ac.atorg/securityoss-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://service.aitseclists.ac.atorg/securityoss-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}}
|{{Yes}}
|{{No}}
|{{NoYes}}
|{{Yes}}
|{{Yes}}
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