Linux Virtualization Concepts: Difference between revisions
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<span id='Red_Hat_Enterprise_Linux_as_Virtualization_Platform'></span>RHEL 7 includes a hypervisor and a number of virtualization tools, which allows running guest operating systems, so it can function as a '''virtualization platform'''. However, the solution supports a limited number of [[Virtualization_Concepts#Guest_Operating_System|guests]] per [[Virtualization_Concepts#Host_Operating_System|host]] and a limited range of guest types. | <span id='Red_Hat_Enterprise_Linux_as_Virtualization_Platform'></span>RHEL 7 includes a hypervisor and a number of virtualization tools, which allows running guest operating systems, so it can function as a '''virtualization platform'''. However, the solution supports a limited number of [[Virtualization_Concepts#Guest_Operating_System|guests]] per [[Virtualization_Concepts#Host_Operating_System|host]] and a limited range of guest types. | ||
<span id='Red_Hat_Virtualization'>'''Red Hat Virtualization'''</span> is an enterprise virtualization solution based on the [[#KVM_.28Kernel-based_Virtual_Machine.29|KVM]] technology. | <span id='Red_Hat_Virtualization'>'''Red Hat Virtualization'''</span> is an enterprise virtualization solution based on the [[#KVM_.28Kernel-based_Virtual_Machine.29|KVM]] technology, offering more features than Red Hat Enterprise Linux. | ||
=KVM (Kernel-based Virtual Machine)= | =KVM (Kernel-based Virtual Machine)= | ||
Revision as of 20:16, 23 June 2017
External
- https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Virtualization_Getting_Started_Guide/index.html
- https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Virtualization_Deployment_and_Administration_Guide/index.html
Internal
Generic Virtualization Concepts
Virtualization Solutions from Red Hat
RHEL 7 includes a hypervisor and a number of virtualization tools, which allows running guest operating systems, so it can function as a virtualization platform. However, the solution supports a limited number of guests per host and a limited range of guest types.
Red Hat Virtualization is an enterprise virtualization solution based on the KVM technology, offering more features than Red Hat Enterprise Linux.
KVM (Kernel-based Virtual Machine)
libvirt
Storage and Virtualization
Networking and Virtualization
Steal Time
"Steal time" is the percentage of time a virtual CPU waits for real CPU while the hypervisor is servicing another virtual processor.
A high value means the physical CPU is overcommitted and more physical CPU should be allocated to the environment - or the VM should be moved on a different physical server. The steal time is reported by vmstat st.