Tag Archives: xen

NASA Nebula Ubuntu cloud

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According to The Register NASA have started to build a private Nebula Cloud based on Ubuntu 10 and Eucalyptus Enterprise 2 which will likely underpin websites across the federal government.

Eucalyptus Enterprise works with the Xen and KVM hypervisors and the latest version has now been ported to VMware hypervisors as well, allowing for installation atop VMware’s vSphere, ESXi, and ESX virtualization technologies. The Eucalyptus Enterprise edition also includes an image converter that helps users develop VMware-based applications that are compatible with Amazon EC2.

Red Hat are replacing Xen with KVM in RHEL 6

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According to The Register Red Hat are replacing Xen with KVM in RHEL 6 !

One of the main goals for RHEL 6 was to make managing virtual servers as easy as managing physical machines, which means the bulk of the new software features are found in KVM. It also means that Xen is gone, though that’s hardly surprising since Red Hat purchased Qumranet – creators of KVM – back in 2008.

Xen VPS hosting with guaranteed resources

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Crucial Paradigm are advertising fast, reliable VPS hosting using Xen

You have full control over your virtual dedicated server just as though it was a dedicated server. This means you will not have issues installing your own modules or even running IP tables. Performance on Xen virtual servers is very high, and you will not have to worry about your applications crashing due to using Virtuozzo or OpenVZ. Also, by utilizing Xen, we are able to guarantee all resources, and its not possible to oversell, so your virtual dedicated servers will run fast, and just like a dedicated server, at a fraction of the cost!

Red Hat RHEL 5 KVM & Xen unconfusion !

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Red Hat Enterprise Linux 5.4

now includes full support for the Kernel-based Virtual Machine (KVM) hypervisor on x86_64 based architectures. KVM is integrated into the Linux kernel, providing a virtualization platform that takes advantage of the stability, features, and hardware support inherent in Red Hat Enterprise Linux.

Note
Xen is the default hypervisor that is shipped with Red Hat Enterprise Linux. As such all configuration defaults are tailored for use with the Xen hypervisor. For details on configuring a system for KVM, please refer to the Virtualization Guide.

Important
Xen based virtualization is fully supported. However, Xen-based virtualization requires a different version of the kernel to function. The KVM hypervisor can only be used with the regular (non-Xen) kernel.

Warning
While Xen and KVM may be installed on the same system, the default networking configuration for these are different. Users are strongly recommended to only install one hypervisor on a system.

XenServer client problems

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XenServer only provide a client as a .RPM or even worse a .MSI ! So if you’e running ed/x/ubuntu you’ll need to install and run alien to convert the .RPM to .DEB and then run

# dpkg -i xe-cli_5.0.0-13193_i386.deb.

When you try and run # xe you may then get the error

Please install the stunnel package or define the XE_STUNNEL environment variable to point to the binary.

Time to install a CentOS VM to run XE i guess !

Convirture ConVirt KVM & Xen management dashboard

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ConVirt provides enterprise-class management of open source virtualization platforms, making open source virtualization an extremely viable and cost-effective choice for enterprises.

ConVirt lets you manage the complete lifecycle of Xen and KVM virtualization platforms from a central, GUI dashboard.

With sophisticated template-based provisioning, centralized monitoring, configuration management and administration, IT administrators can now automate the entire virtual machine lifecycle on open source platforms.