Method and system for cluster resource management in a virtualized computing environment

摘要

Methods and systems for cluster resource management in virtualized computing environments are described. VM spares are used to reserve (or help discover or otherwise obtain) a set of computing resources for a VM. While VM spares may be used for a variety of scenarios, particular uses of VM spares include using spares to ensure resource availability for requests to power on VMs as well as for discovering, obtaining, and defragmenting the resources and VMs on a cluster, e.g., in response to requests to reserve resources for a VM or to respond to a notification of a failure for a given VM.

主权项

1. A method for managing computing resources available in a computing cluster, the method comprising:
storing a representation of available computing resources for new virtual machines (VMs), the available computing resources excluding computing resources allocated at a point in time to one or more VMs executing within the computing cluster and computing resources reserved at the point in time for one or more spare VMs, which correspond to VMs that are not currently executing but are to be executed within the computing cluster alongside the one or more VMs; in response to receiving a power-on request to power on a new VM, allocating the computing resources reserved for the spare VM to the new VM and powering on the new VM, wherein, after powering on the new VM, the number of running VMs is one greater than before powering on the new VM.