OpenVZ is an open source operating system-level virtualization technology
based on the Linux kernel and operating system. OpenVZ allows a
physical server to run multiple isolated operating system instances. These
are secure, isolated containers. Each container performs
and executes exactly like a stand-alone server.
OpenVZ is not true virtualization but similiar to FreeBSD Jails.
OpenVZ is a highly scalable virtualization technology
with minimal overhead, good isolation and rapid customer
OpenVZ consists of a kernel, user-level tools and templates.
The OpenVZ kernel is a Linux kernel, modified to add support
for OpenVZ containers. The modified kernel provides virtualization,
isolation, resource management, and checkpointing.
OpenVZ is the basis of Parallels Cloud Server, a commercial
virtualization solution offered by Parallels.
- OpenVZ employs a single kernel model, it is as scalable
as the Linux kernel - up to thousands of CPUs and terabytes of RAM
- Virtualization overhead observed in OpenVZ is minimal so
that there is very little performance degradation
- Serve more containers from a given physical server, so long
as the computational demands do not exceed the physical availability.
- A root user of an OpenVZ physical server can see all the running
processes and files of all the containers on the system
- Rapid customer provisioning
- Updates provisioning
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Last Updated Friday, August 02 2013 @ 05:38 AM EDT