Patent ID: 9256382
Filing Date: 2016-02-09
CPC Classification: G06F

Claim Text:
1. A method, comprising: generating, by a computational device, metadata that stores a correspondence between a source logical block of a thinly provisioned source logical unit and a target logical block of a thinly provisioned target logical unit, without physically moving data from the thinly provisioned source logical unit to the thinly provisioned target logical unit, wherein an application programming interface is used to remap physical storage, and wherein the application programming interface is comprised of parameters including a source logical unit number, a source logical block address, a target logical unit number, a target logical block address, and a size; and in response to a reconfiguration of the thinly provisioned source logical unit and the thinly provisioned target logical unit as fully provisioned, physically copying data stored in the source logical block of the thinly provisioned source logical unit that is now a fully provisioned source storage unit to the target logical block of the thinly provisioned target logical unit that is now a fully provisioned target storage unit.