Linux News Today: Xen 4.7 Open Source Linux Hypervisor Arrives with Non-Disruptive, Live Patching
Today, June 23, 2016, the Xen Project has had the great pleasure of announcing the immediate availability for download of the Xen 4.7 open-source Linux hypervisor software for GNU/Linux operating systems.
Xen 4.7 arrives eight months after the release of the previous version, Xen 4.6, and it appears to be yet another major release. Not that we expected less from the leading open-source virtualization system, which is currently being used in many of the world’s best and renowned cloud hosting services, including AWS (Amazon Web Services), Rackspace Public Cloud, and Verizon Cloud, powering more than 10 million users.
Release highlights of Xen 4.7 include a new XL command-line interface that has been designed to allow the use of PVUSB devices for PV guests, as well as to enable hot-plugging of USB devices, HVM guests, and QEMU disk backends like iSCSI, DRBD, and more in HVM guests. Basically, this lets you add or remove disk backends to virtual machines without the need to reboot the guest.
“The Xen Project hypervisor is innovating in all areas and continues to evolve to meet the new needs of cloud computing and computer infrastructures,” said Lars Kurth, chairperson of the Xen Project advisory board. “Xen Project 4.7 is a testament to the incredible collaboration that is happening within the community, and a continuation of our shorter release cycle.”
Xen 4.7 introduces support for a broader range of applications and workloads
Other exciting new features implemented in Xen 4.7 is support for a broader range of applications and workloads by removing the PV guest limit restriction of 512GB. Then, the Live Migration functionality has received a great number of improvements, support for booting on hosts that exhibit ACPI 6.0 or higher information, PSCI 1.0 compatibility, along with enhancements to the Intel Xeon processor product family by implementing support for Code and Data Prioritization (CDP) and VT-d Posted Interrupts.
The Xen Project is growing by the day, and it saw major contributions from some of the top-notch IT companies around the globe, including but not limited to Intel, NSA, ARM, AMD, Red Hat, SUSE, Oracle, Linaro, Bitdefender, Fujitsu, Bosch, Netflix, Broadcom, Citrix, Star Lab, GlobalLogic, Huawei, Xilinx, and Novetta. Xen is currently the number one solution for cloud computing, hyper-scale computing, embedded computing, security-intensive applications, hosting providers, etc.
Download Xen 4.7 right now via our website.