8/16/2023 0 Comments Backuploupe alternative![]() This may require background mounting and unmounting of those snapshots, and often results in the spinning Time Machine icon being displayed against that volume in the Finder. ![]() Periodically, backup snapshots are indexed by Spotlight for the volume’s Spotlight-V100 indexes. Adding a new backup only changes the file system of the backup volume, and doesn’t affect any previous backup snapshots.īig Sur does perform one routine maintenance task on the backup store which can appear worrying. Once those have been made, their separate file systems are read-only, and can be unmounted. Each backup is contained within the file system of its own snapshot. On the right, an APFS backup store consists of one APFS volume containing the last backup and Spotlight indexes. That file system has to be kept live, and each time that a new backup is added to it, the file system changes and grows in size. On the left, an HFS+ backup store puts all the folders, files and hard links into the one file system of a single HFS+ volume. The fundamental differences in backup store structure are shown in this diagram. ![]() If a backup inadvertently captures a very large file which you want to remove, the only way to do that is to remove that whole backup. Currently, there’s no way to modify the contents of a snapshot, which means that users can’t delete individual backed-up items at all. Snapshots forming backups on the backup store can be deleted in the Finder, or using tmutil, but the user can’t delete or modify backups in the Time Machine app itself. Because snapshots themselves aren’t exposed in the Finder or Disk Utility, third-party utilities such as Carbon Copy Cloner can be used in preference. Occasionally, old snapshots may become orphaned in error, and they can be maintained using the tmutil command. Each backup consists of two snapshots: a short-life whole-volume snapshot is saved to each volume being backed up, and those are removed (‘thinned’) once they’re 24 hours old. Given sufficient free storage space, TMA shouldn’t need any additional routine maintenance. In this article I look at what maintenance Time Machine backing up to APFS (TMA) should need, and what’s available to repair it. As we’ve done more complex things with our Macs, and storage capacities have risen, it had reached the point where, for many users, it simply wasn’t working. Time Machine was originally designed to be low-maintenance, integrated with Mac OS X, and easy to use.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |