Last week Amazon Web Services and Rackspace notified customers that their servers would be rebooted as a part of Xen hypervisor patching. This is the second time that AWS has scheduled reboots as a part of its cloud infrastructure maintenance, and AWS published guidance for building applications resilient to reboots and restarts.
Mirage OS is a ‘cloud operating system’ that seeks to avoid security vulnerabilities and bloat by facilitating the creation of single purpose virtual appliances. Applications are developed in the OCaml functional programming language and compiled into standalone ‘unikernels’ that run directly on the Xen hypervisor.
Private clouds continue to grow in popularity and offer a number of appealing benefits to an organization including higher utilization of existing server resources, improved manageability, pay as you go, and self-service. This roundup provides a high-level view of some of the key ingredients for creating a private cloud solution.
Citrix has released XenClient, a Type 1 hypervisor built on Intel vPro technologies, targeted at corporate desktops/laptops with administration capabilities.
After buying XenSource 18 months ago for half a billion USD, Citrix offers their last version of the XenServer “free of charge to any user for unlimited production deployment”. This move will certainly have a significant impact on the virtualization market in the cloud computing era that has begun.
A new InfoQ case study takes a look at how the benefits of virtualization can be harnessed inside enterprise data centers to increase reliability, ease maintenance, and enable Saas deployments.