Patent ID: 11947430
Assignee: NETAPP, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 19:
20. A non-transitory machine readable medium comprising instructions for performing a method, which when executed by a machine, causes the machine to:
hosting a file system tier of a storage operating system storage stack, wherein the file system stores data within blocks of a storage device according to block-addressable access;
hosting a persistent memory tier of the storage operating system storage stack, wherein the persistent memory tier manages a persistent memory file system that stores data within a plurality of pages of persistent memory according to byte-addressable access; and
performing a traversal of the persistent memory file system, reference counts of children pages that are children of a page encountered by the traversal are incremented and a visited field for the page is set to indicate that the traversal encountered the page.