公开(公告)号：US20220391289A1

公开(公告)日：2022-12-08

申请号：US17645429

申请日：2021-12-21

Applicant: Apple Inc.

Inventor： Robert M. CADWALLADER ,  Christopher A. WOLF

IPC: G06F11/14 ,  G06F11/30

Abstract: The described embodiments set forth techniques for providing an improved backup progress estimate for a backup of a source file system volume (FSV). The techniques involve determining, for the source FSV, a backup size during performance of backup operations. The operations can include determining the backup size based on a number of files on the source FSV. Additionally, the operations can include copying files of the source FSV and/or propagating corresponding files of a destination FSV to a location of the backup of the source FSV on a destination storage device and updating one or more metrics using a number of files and/or a number of bytes copied and/or propagated to the backup. In this manner, a progress indication for the backup may be determined based on the one or more metrics responsive to files and/or directories of the source file system volume being stored on a destination storage device.

公开(公告)号：US20180349227A1

公开(公告)日：2018-12-06

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 ,  G06F17/30

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：US20180349407A1

公开(公告)日：2018-12-06

申请号：US15721311

申请日：2017-09-29

Applicant: Apple Inc.

Inventor： Pavel CISLER ,  Christopher A. WOLF ,  Loic E. VANDEREYKEN ,  Eric A. WEISS

IPC: G06F17/30

Abstract: The described embodiments set forth techniques for preserving clone relationships between files at a computing device. In particular, the techniques involve identifying clone relationships between files in conjunction with performing operations on the files where it can be beneficial to preserve the clone relationships. The operations can include, for example, preserving clone relationships between files that are being copied from a source storage device (that supports file cloning) to a destination storage device that supports file cloning. Additionally, the operations can include preserving clone relationships when backing up and restoring files between a source storage device (that supports file cloning) and a destination storage device that does not support file cloning. In this manner, the various benefits afforded by the clone relationships between files can be retained even as the files are propagated to destination storage devices that may or may not support file cloning.

公开(公告)号：US20180349226A1

公开(公告)日：2018-12-06

申请号：US15721287

申请日：2017-09-29

Applicant: Apple Inc.

Inventor： Pavel CISLER ,  Christopher A. WOLF ,  Loic E. VANDEREYKEN ,  Eric A. WEISS

IPC: G06F11/14 ,  G06F17/30

Abstract: The described embodiments set forth techniques for preserving clone relationships between files at a computing device. In particular, the techniques involve identifying clone relationships between files in conjunction with performing operations on the files where it can be beneficial to preserve the clone relationships. The operations can include, for example, preserving clone relationships between files that are being copied from a source storage device (that supports file cloning) to a destination storage device that supports file cloning. Additionally, the operations can include preserving clone relationships when backing up and restoring files between a source storage device (that supports file cloning) and a destination storage device that does not support file cloning. In this manner, the various benefits afforded by the clone relationships between files can be retained even as the files are propagated to destination storage devices that may or may not support file cloning.

公开(公告)号：US20180349133A1

公开(公告)日：2018-12-06

申请号：US15720203

申请日：2017-09-29

Applicant: Apple Inc.

Inventor： Christopher A. WOLF ,  Jack R. MATTHEW

IPC: G06F9/44 ,  G06F9/445 ,  G06F17/30

CPC classification number: G06F8/71 ,  G06F8/65 ,  G06F8/73 ,  G06F9/4411 ,  G06F16/11 ,  G06F16/162 ,  G06F16/2379

Abstract: The embodiments set forth a technique for restoring a computing device to an operable state when a software update renders the computing device inoperable. According to some embodiments, a snapshot of a file system volume is automatically generated prior to executing the software update. When an issue is detected with the software update—e.g., the computing device freezes, the computing device cannot boot into an operable mode, etc.—the computing device can (1) automatically enter into a restoration mode, and (2) restore the file system volume to its previous state in accordance with the snapshot. In this manner, the issues caused by the software update are entirely mitigated, and the computing device can transition back into an operable state.