Better performance reporting of XenServer thanks to Xen Orchestra!
This post follows up http://lxer.com/module/newswire/view/230814/index.html and might work as timer saver unless status undecloud.qcow2 per http://artifacts.ci.centos.org/artifacts/rdo/images/mitaka/delorean/stable/ requires fresh installation to be done from scratch So, we intend to survive VIRTHOST cold reboot (downtime) and keep previous version of undercloud VM been able to bring it up avoiding build via quickstart.sh and restart procedure from logging into […]
New major release of Xen Orchestra, bringing XenServer to the Cloud!
XenServer 7.0, Grub2, and a Lost Root Password In a previous article I detailed how one could reset a lost root password to XenServer 6.2. While the article is not limited to 6.2 (it works just as well for 6.5, 6.1, and 6.0.2), this article is dedicated to XenServer 7.0 as grub2 has been brought in to replace extlinux. As such, if the local root user's (LRU) password for a XenServer 7.0 is forgotten physical (or "lights out") access to the host and a reboot will be required. The contrast comes with grub2, the methods to boot the XenServer 7.0 host into single...
I’m pleased to announce the release of Xen Project Hypervisor 4.7 and Xen Project Hypervisor 4.6.3. Xen Project Hypervisor 4.7 This new release focuses on improving code quality, security hardening, security features, live migration support, usability improvements and support for new hardware features — this is also the first release of our fixed term June […]
Latest dev report before releasing Xen Orchestra 5.0, the best solution to manage your XenServer infrastructure!
This post follows up https://www.linux.com/blog/rdo-triple0-quickstart-ha-setup-intel-core-i7-4790-desktop In meantime undercloud-install,undercloud-post-install (openstack undercloud install, openstack overcloud image upload ) are supposed to be performed during original run `bash quickstart.sh –config /path-to/ha.yml $VIRTHOST` run. Neutron networks deployment on undercloud and HA Server’s configuration has been significantly rebuilt since 06/03/2016. I believe design bellow is close to proposed in https://remote-lab.net/rdo-manager-ha-openstack-deployment However […]
The XenServer team has made a number of significant performance and scalability improvements in the XenServer 7.0 release. This is the second in a series of articles that will describe the principal improvements. For the first, see http://xenserver.org/blog/entry/dundee-tapdisk3-polling.html. The topic of this post is network I/O performance. XenServer 7.0 achieves significant performance improvements through the support for multi-queue paravirtualised network interfaces. Measurements of one particular use-case show an improvement from 17 Gb/s to 41 Gb/s. A bit of background about the PV network datapath In order to perform network-based communications, a VM employs a paravirtualised network driver (netfront in Linux or xennet in...
We recently announced the program and speakers for our Xen Project Developer Summit happening in Toronto, Canada from August 25-26, 2016. The event will be co-located with LinuxCon North America. The Xen Project hypervisor powers the new needs of computing and virtualization through a rich ecosystem of community members that focus on everything from security, […]
Xen Orchestra 5 incredible performances revealed in this dev report.