公开(公告)号：US11449389B2

公开(公告)日：2022-09-20

申请号：US15841283

申请日：2017-12-13

Applicant: Apple Inc.

Inventor： Pavel Cisler ,  Pavel Sokolov ,  Dominic B. Giampaolo ,  Eric A. Weiss ,  Christopher A. Wolf

IPC: G06F11/14 ,  G06F16/11 ,  G06F16/16 ,  G06F16/17

Abstract: The embodiments set forth techniques for performing incremental backups of a source file system volume (FSV) managed by a source computing device. According to some embodiments, the source computing device can be configured to generate a current snapshot of the source FSV, where the current snapshot complements a previous snapshot of the source FSV (e.g., established during a previous backup). In some cases, to free up storage space, the data for files belonging to the source FSV can be stripped from the previous snapshot (where metadata for the files remains intact). Next, the source computing device can generate, within a destination storage device, a second snapshot of a destination FSV (that corresponds to the source FSV). In turn, the source computing device identifies changes made to the source FSV based on the current snapshot and the previous snapshot, and reflects the changes within the second snapshot of the destination FSV.

公开(公告)号：US10303652B2

公开(公告)日：2019-05-28

申请号：US15203712

申请日：2016-07-06

Applicant: Apple Inc.

Inventor： Dominic B. Giampaolo ,  Pavel Cisler ,  Eric A. Weiss ,  Kristen A. McIntyre

IPC: G06F7/00 ,  G06F17/30 ,  G06F16/16 ,  G06F16/178 ,  H04L9/32

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for file system management. In one aspect, a method includes receiving a request at a kernel to perform a file operation on a particular file; identifying a flag bit associated with the file; invoking user space file handler to perform particular action when the flag bit is set; determining whether notification that action has been performed by file handler is received; and allowing the file operation on the file when notification is received.

公开(公告)号：US09411812B2

公开(公告)日：2016-08-09

申请号：US14644070

申请日：2015-03-10

Applicant: Apple Inc.

Inventor： Dominic B. Giampaolo ,  Pavel Cisler ,  Eric A. Weiss ,  Kristen A. McIntyre

IPC: G06F12/00 ,  G06F17/30

CPC classification number: G06F17/30115 ,  G06F17/30179 ,  H04L9/3213

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for file system management. In one aspect, a method includes receiving a request at a kernel to perform a file operation on a particular file; identifying a flag bit associated with the file; invoking user space file handler to perform particular action when the flag bit is set; determining whether notification that action has been performed by file handler is received; and allowing the file operation on the file when notification is received.