Vmware, Inc.

Jayant Kulkarni

Komal Desai

Haripriya Rajagopal

A datastore for a virtual machine that can be executed on a host computer networked to a physical storage system is allocated by a server. The server generates a unique identifier to associate with the datastore, wherein the unique identifier mimics a form of identifier that is generated by the physical storage system to identify volumes of physical storage in the physical storage system that are accessible to the host computer. At least one volume of physical storage in the physical storage system having physical storage available to satisfy the request to allocate the datastore is identified and the server maintains a mapping of the unique identifier to the at least one volume of physical storage and provides the mapping to the host computer upon running the virtual machine, thereby enabling the host computer to store data for the datastore in the at least one volume of physical storage.

System and method for allocating datastores for virtual machines

Computer implemented methods and systems for providing storage virtualization of physical storage include receiving a request for storage from a virtual machine during provisioning of the virtual machine. The request includes a capability and quota requirement for storage as required by the virtual machine. A virtual datastore that satisfies the capability and quota requirements of the request is identified. If not found, one or more volumes, that satisfy the storage requirements, are discovered or created. A virtual datastore is created and maps to one or more volumes which have unique volume identifiers. A unique virtual datastore identifier is generated for the virtual datastore. The virtual datastore identifier is distinct from the volume identifiers of the underlying volumes. The volumes are mapped to the virtual datastore while retaining the virtual datastore identifier for the virtual datastore. The virtual datastore identifier for the virtual datastore is not changed when modifications are made to the physical storage entities mapped to the virtual datastore.

Monitoring and updating mapping of physical storage allocation of virtual machine without changing identifier of the storage volume assigned to virtual machine

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Pune, India

Jayant Kulkarni