1. A method comprising: determining whether an administrative task for a file system is to be performed within a thin storage memory array; if the administrative task for the file system is to be performed, determining whether memory space is freed up while performing the administrative task; if memory space is freed up while performing the administrative task, determining whether the freed up memory space satisfies a predefined contiguous memory space threshold; if the predefined contiguous memory space threshold is satisfied by the freed up memory space, determining whether a memory space reclamation process is to be performed; and if the memory space reclamation process is to be performed, reclaiming the freed up memory space from the file system.