Ensuring sufficient available storage capacity for data resynchronization/reconstruction in a hyper-converged infrastructure

A non-transitory computer readable storage medium having stored thereon program code executable by a computer system, the program code embodying a method for ensuring sufficient available storage capacity for data resynchronization or data reconstruction in a cluster of a hyper-converged infrastructure (HCI) deployment, the method comprising:

• receiving a request to provision or reconfigure an object on the cluster, the object comprising a plurality of components in accordance with a storage policy associated with the object;
• determining, in response to the request, a proposed placement of the object on local storage resources of one or more first host systems in the cluster, the proposed placement being based on the storage policy and including a mapping between each component in the plurality of components and each of the one or more first host systems;
• calculating one or more storage capacity reservations for one or more second host systems in the cluster, the one or more storage capacity reservations indicating one or more amounts of local storage capacity to reserve on local storage resources on the one or more second host systems respectively in order to ensure successful data resynchronization or data reconstruction in case of a host system failure or maintenance event;
• and
• if the proposed placement of the object will result in a conflict with the one or more storage capacity reservations, denying the request to provision or reconfigure the object.

A computer system comprising:

• a processor;
• and
• a non-transitory computer readable medium having stored thereon program code that, when executed, causes the processor to:
• receive a request to provision or reconfigure an object on a cluster of a hyper-converged infrastructure (HCI) deployment, the object comprising a plurality of components in accordance with a storage policy associated with the object;
• determine, in response to the request, a proposed placement of the object on local storage resources of one or more first host systems in the cluster, the proposed placement being based on the storage policy and including a mapping between each component in the plurality of components and each of the one or more first host systems;
• calculate one or more storage capacity reservations for one or more second host systems in the cluster, the one or more storage capacity reservations indicating one or more amounts of local storage capacity to reserve on local storage resources of the one or more second host systems respectively in order to ensure successful data resynchronization or data reconstruction in case of a host system failure or maintenance event;
• and
• if the proposed placement of the object will result in a conflict with the one or more storage capacity reservations, deny the request to provision or reconfigure the object.