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Virtualization Feed

Xen Hypervisor, KVM Hypervisor and Oracle virtualization resources, news, and support articles.

Will Docker Replace Virtual Machines?

Docker is certainly the most influential open source project of the moment. Why is Docker so successful? Is it going to replace Virtual Machines? Will there be a big switch? If so, when?

Let’s look at the past to understand the present and predict the future. Before virtual machines, system administrators used to provision physical boxes to their users. The process was cumbersome, not completely automated, and it took hours if not days. When something went wrong, they had to run to the server room to replace the physical box.

On rump kernels and the Rumprun unikernel

The Rumprun unikernel, based on the driver components offered by rump kernels, provides a means to run existing POSIX applications as unikernels on Xen. This post explains how we got here (it matters!), what sort of things can be solved today, and also a bit of what is in store for the future.

The Bitdefender virtual machine introspection library is now on GitHub

The security threats we’re facing today are becoming increasingly sophisticated. Rootkits, and malware taking advantage of kernel and 0-day vulnerabilities pose especially serious challenges for classic anti-malware solutions, due to the latter’s lack of isolation: they’re typically executing in the same context as the malware they’re trying to prevent.

New Hyper Open Source Project Allows Developers To Leverage Docker and Xen Virtualization Infrastructure

Docker’s popularity and usefulness in cloud systems architectures is evident, having won over countless developers. Yet, it’s not a replacement for mature, proven and security-hardened virtualization technologies that support many of the world’s largest clouds in production.

The Bare-Metal Hypervisor as a Platform for Innovation

In this industry, everyone seems to talk about innovation, but very few platforms exist which foster innovation.  More times than not, “innovation” is simply a buzzword used by some marketing campaign to hawk something about as novel as twenty-year-old accounting software.

Switching to Dashboard Spice Console in RDO Kilo on Fedora 22

UPDATE 06/27/2015
# dnf install -y
# dnf  install -y openstack-packstack  
# dnf install fedora-repos-rawhide
# dnf  –enablerepo=rawhide update openstack-packstack
Fedora – Rawhide – Developmental packages for the next Fedora re 1.7 MB/s |  45 MB     00:27

Dell Server admin tools (srvadmin) on Centos 5/XenServer

Recently, with the release of a new 8.x version of Dell SrvAdmin tools, the Centos/RHEL5 (and XenServer, by the way) repositories disappeared. It appears that Dell will not support the RHEL5.x brands anymore.
The proper solution is to install the last 7 SrvAdmin tools, as can be shown in this site.
This solves the problem for XenServer as well.

No related posts.

Project Raisin – Raise Xen!

It all started with pvgrub2: it was March 2015 and I wanted to add grub2 to the Xen build system. We were already building grub-legacy as part of the Xen build, so that we could produce a pvgrub binary to be used to boot PV guests. After Vladimir ‘phcoder‘ Serbinenko’s good work on grub2, the latest and greatest upstream grub2 could be built with Xen support and used to boot PV guests. It made perfect sense to add grub2 to the Xen build system too, right? Maybe not.

Migration of Oracle GI quorum disk to another diskgroup

When installing Oracle RAC (or in its more modern name – GI) version and above, you can use Oracle ASM DiskGroup as your CRS+Voting file location.
It is fairly simple changing the disk membership in Oracle ASM DiskGroup, however, when you face some unknown bugs which prevent you from doing just that, or when you are required to modify the ASM DiskGroup on which the CRS+Voting files are placed, the article below is the one for you. You would have to remember, in addition, the ASM spfile.

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