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SmartOS

SmartOS is a free and open-source SVR4 hypervisor based on the UNIX operating system that combines OpenSolaris technology with bhyve and KVM virtualization. Its core kernel contributes to the illumos project. It features several technologies: Crossbow, DTrace, bhyve, KVM, ZFS, and Zones. Unlike other illumos distributions, SmartOS employs NetBSD pkgsrc package management. SmartOS is designed to be particularly suitable for building clouds and generating appliances. It was originally developed for and by Joyent, who announced in April 2022 that they had sold their business supporting and developing of Triton Datacenter and SmartOS to MNX Solutions.

Virtualization
SmartOS includes a number of virtualization technologies, including: • Zones, a lightweight operating system-level virtualization; analogous to "jails" or "containers" as provided by other systems • Hardware virtualization Native Zones Native zones provide SmartOS applications isolation environment, based on Solaris Containers, an OS-level virtualization, without the overhead of hardware-emulating HVM virtual machines. LX zones (Linux system call emulation) LX-branded zones provide the Linux system call interface, enabling the execution of Linux application binaries without recompiling them for SmartOS. This facility is available in several illumos distributions, including SmartOS and OmniOS. KVM KVM and QEMU were ported to SmartOS in 2011, and can be used on Intel CPUs with VMX and EPT support. bhyve The Bhyve hypervisor from FreeBSD was ported to SmartOS. This is the preferred virtualization when required to use HVM for Windows or Linux guests. == References ==
Source: Wikipedia ↗
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