Introduction to new functions of opennebula 3.6

Opennebula 3.6 mainly reinforces some of the features introduced by opennebula 3.4, optimizes the performance of the previous versions, and adds new virtualization management and integration with the new opennebula marketplace.

Opennebula 3.6 introduces the following new features: (1) supports hot swapping of disk volumes, including adding volatile volumes and existing imgfiles to running virtual machines (2) the quota and accounting tools have been rewritten and can be perfectly integrated with the authz & Authn mechanism and other tools (such as Sunstone) in the opennebula core. (3) Support rescheduling virtual machines in the running state (4) Support for hard restart, disk image cloning, and definition of data centers per cluster (5) Sunstone is redesigned with a more friendly interface

VM rescheduling

Onevm. the resched command can reschedule a running Virtual Machine. The principle is onevm. resched sets the mark of whether the specified virtual machine needs to be rescheduled. In the next scheduling cycle, the virtual machine set to be rescheduled will be rescheduled. This feature can also be used by other components to reschedule virtual machines based on their own needs.

The rescheduling function of virtual machines can solve the problem of creating a virtual machine on a host, and the current host may not be suitable for the previous virtual machine.

Hot swapping mechanism of volatile volumes and imgfiles

This function is implemented by adding a virtual machine status hotplug. For details about the status of virtual machines supported by opennebula 3.6, see.