Proactive resource reservation for protecting virtual machines

摘要

A system for proactive resource reservation for protecting virtual machines. The system includes a cluster of hosts, wherein the cluster of hosts includes a master host, a first slave host, and one or more other slave hosts, and wherein the first slave host executes one or more virtual machines thereon. The first slave host is configured to identify a failure that impacts an ability of the one or more virtual machines to provide service, and calculate a list of impacted virtual machines. The master host is configured to receive a request to reserve resources on another host in the cluster of hosts to enable the impacted one or more virtual machines to failover, calculate a resource capacity among the cluster of hosts, determine whether the calculated resource capacity is sufficient to reserve the resources, and send an indication as to whether the resources are reserved.

主权项

1. A system comprising:
a cluster of hosts, the cluster of hosts comprising a master host, a first slave host, and one or more other slave hosts, wherein the first slave host executes one or more virtual machines thereon; and wherein the first slave host is configured to:
identify a failure that impacts an ability of the one or more virtual machines to provide service;calculate a list of impacted virtual machines from the one or more virtual machines executed on the first slave host; and wherein the master host is configured to:
receive, from the first slave host, a request to reserve resources on another host in the cluster of hosts to enable the impacted one or more virtual machines executed on the first slave host to failover;calculate a resource capacity among the cluster of hosts;determine whether the calculated resource capacity is sufficient to reserve the resources; andsend, to the first slave host, an indication as to whether the resources are reserved for each of the impacted one or more virtual machines.