Red Hat Virtualization

Red Hat Virtualization (RHV) is an x86 virtualization product produced by Red Hat,[1] based on the KVM hypervisor.[2] Red Hat Virtualization uses the SPICE protocol and VDSM (Virtual Desktop Server Manager) with a RHEL-based centralized management server. It can acquire user and group information from an Active Directory or FreeIPA domain.[3] Some of the technologies of Red Hat Virtualization came from Red Hat's acquisition of Qumranet.[4] Other parts derive from oVirt.[5] Before 2016, up to version 3.x product was named Red Hat Enterprise Virtualization (RHEV). Certified by KVM community.

Red Hat Virtualization
Developer(s)Red Hat, Inc.
Initial releaseJune 22, 2010 (2010-06-22)
Stable release
4.3 / May 15, 2019 (2019-05-15)
Written inJava, JSP

RHV support scheduling policies that defines the logic by which virtual machines are distributed amongst hosts.[6]

RHV support up to 400 hosts in a single cluster and no maximum number of virtual machines[7]. It also support hot plugging virtual CPUs[8] also allows to run unlimited guest machine in comparison with RHEL which is limited to 4 guest machines.[9]

RHV solution is based on two primary software components[10]

  • Red Hat Virtualization Manager (RHV-M)
  • Red Hat Virtualization Hypervisors or hosts: Red Hat Enterprise Linux or RHV Host (RHV-H)

Different backup solutions are available including support from Veritas Netbackup since 2019.


  • 2.2  released June 22, 2010, at the Red Hat Summit in Boston.
  • 3.0  announced January 18, 2012, which expanded ISV partnerships[11] alongside new features such as management features, performance and scalability for both Linux and Windows workloads, a power user portal for self-service provisioning, RESTful API, and local storage.[12][13]
  • 3.1  released December 5, 2012.[14][15]
  • 3.2  released June 12, 2013.[16]
  • 3.3  released January 22, 2014.[17]
  • 3.4  released June 16, 2014. Among other improvements, it provides better integration with OpenStack and version 7 of the Red Hat Enterprise Linux.[18]
  • 3.5  released February 11, 2015.[19]
  • 3.6  released March 9, 2016.[20]
  • 4.0  released August 24, 2016. Rebranding to Red Hat Virtualization.[21]
  • 4.1  released April 19, 2017. Support for QCOW3 image format. Hot unplug CPUs (limited to CPUs that were previously hot plugged). VMs with SR-IOV can now be live-migrated. Ability to sparcify thinly provisioned disks when VM is shut down. It is now possible to pass on discard commands to the underlying storage (previously qemu was ignoring them). Up to 288 vCPU per VM. RHV Host images now also include tcpdump, screen. [22] [23] [24]
  • 4.2  released May 15, 2018. Brings ease-of-use, automation, and continued tighter integration with the Red Hat portfolio. [25] [26]
  • 4.3  released May 15, 2019 [27][28] which included Guest Time Synchronization[29] among other enhancements.

See also


  1. "Red Hat Enterprise Virtualization for Servers",
  2. Sobotta, Adrian T.; Sobotta, Irene M.; Gøtze, John. Greening IT. Adrian Sobotta. pp. 109–110. ISBN 978-87-91936-02-9. Retrieved 2010-07-16. Red Hat Enterprise Virtualization (RHEV) hypervisors and management tools for servers and desktops [...] The SolidICE virtual desktop intrastructure tools based on the KVM hypervisor are integrated into the RHEV Desktop edition [...]
  3. "Installation Guide". 2011-08-04. Retrieved 2014-02-14.
  4. Red Hat Advances Virtualization Leadership with Qumranet, Inc. Acquisition
  5. RHEL 5 Hypervisor Deployment Guide, chapter 2
  11. Red Hat Enterprise Virtualization 3.0 Enters Market with Backing of Strong ISV Ecosystem
  12. Red Hat Enterprise Virtualization 3.0 Delivers Strategic Virtualization Alternative
  13. Red Hat Goes After VMware Hard with Red Hat Enterprise Virtualization 3.0 - ReadWriteWeb
  14. "Red Hat Enterprise Virtualization Life Cycle - Red Hat Customer Portal". Retrieved 2014-02-14.
  15. "Manager Release Notes". Retrieved 2014-02-14.
  16. "Launches Red Hat Enterprise Virtualization 3.2". Red Hat. Archived from the original on 2014-02-22. Retrieved 2014-02-14.
  17. "Enterprise Virtualization 3.3 Enables OpenStack-ready Cloud Infrastructure". Red Hat. Retrieved 2014-02-14.
  18. "Enterprise Virtualization 3.4 Offers New Advancements in Enterprise-Scale Virtualization Management". Red Hat. 2014-06-16. Archived from the original on 2014-06-22. Retrieved 2014-06-21.
  19. "Red Hat Launches Red Hat Enterprise Virtualization 3.5 with Increased Scalability, Management, and Integration with OpenStack". Red Hat. 2015-02-11. Retrieved 2015-02-11.
  20. "Red Hat Enterprise Virtualization 3.6 Offers Improved Performance, Scale and Security for High-Performance Linux-Based Workloads". Red Hat. 2016-03-09. Retrieved 2016-03-09.
  21. "Red Hat Powers New Generation of High-performance virtualization based on open standards with Red Hat Virtualization 4". Red Hat. 2016-08-24. Retrieved 2016-10-04.
  22. "Red Hat Virtualization 4.1 release notes". Red Hat.
  23. "Red Hat Offers Launchpad for IT Transformation with Latest Version of Red Hat Virtualization". Red Hat. 2017-04-19. Retrieved 2017-04-27.
  24. "Red Hat Virtualization 4.1 is LIVE!". Red Hat Blog. 2017-04-19. Retrieved 2017-04-27.
  25. "Release notes for Red Hat Virtualization 4.2". Red Hat. Retrieved 2018-07-25.
  26. "Please Welcome Red Hat Virtualization 4.2!". Red Hat Blog. 2018-05-15. Retrieved 2018-07-25.
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