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2. Disk Utility - Wikipedia

   en.wikipedia.org/wiki/Disk_Utility

   Secure deletion of free space or disk using a "zero out" data, a 7-pass DOD 5220-22 M standard, or a 35-pass Gutmann algorithm; Adding or changing partition table between Apple Partition Map, GUID Partition Table, and master boot record (MBR) Restoring volumes from Apple Software Restore (ASR) images; Checking the S.M.A.R.T. status of a hard disk

3. Hidden file and hidden directory - Wikipedia

   en.wikipedia.org/wiki/Hidden_file_and_hidden...

   In DOS systems, file directory entries include a Hidden file attribute which is manipulated using the attrib command. Using the command line command dir /ah displays the files with the Hidden attribute. In addition, there is a System file attribute that can be set on a file, which also causes the file to be hidden in directory listings.

4. File system fragmentation - Wikipedia

   en.wikipedia.org/wiki/File_system_fragmentation

   File segmentation, also called related-file fragmentation, or application-level (file) fragmentation, refers to the lack of locality of reference (within the storing medium) between related files. Unlike the previous two types of fragmentation, file scattering is a much more vague concept, as it heavily depends on the access pattern of specific ...

5. Sparse file - Wikipedia

   en.wikipedia.org/wiki/Sparse_file

   Disadvantages are that sparse files may become fragmented; file system free space reports may be misleading; filling up file systems containing sparse files can have unexpected effects (such as disk-full or quota-exceeded errors when merely overwriting an existing portion of a file that happened to have been sparse); and copying a sparse file with a program that does not explicitly support ...

6. Scratch space - Wikipedia

   en.wikipedia.org/wiki/Scratch_space

   Scratch space is space on the hard disk drive that is dedicated for storage of temporary user data, by analogy of "scratch paper." [ 1 ] [ 2 ] It is unreliable by intention and has no backup . Scratch disks may occasionally be set to erase all data at regular intervals so that the disk space is left free for future use.

7. Data remanence - Wikipedia

   en.wikipedia.org/wiki/Data_remanence

   Data remanence is the residual representation of digital data that remains even after attempts have been made to remove or erase the data. This residue may result from data being left intact by a nominal file deletion operation, by reformatting of storage media that does not remove data previously written to the media, or through physical properties of the storage media that allow previously ...

8. Target Disk Mode - Wikipedia

   en.wikipedia.org/wiki/Target_Disk_Mode

   Using Target Disk Mode on this MacBook requires a cable that supports USB 3.0 or USB 3.1, with either a USB-A or USB-C connector on one end and a USB-C connector on the other end for the MacBook. [5] With the Mac transition to Apple silicon, Apple replaced Target Disk Mode with Mac Sharing Mode.

9. .DS_Store - Wikipedia

   en.wikipedia.org/wiki/.DS_Store

   .DS_Store files may impose additional burdens on a revision control process, since they are frequently changed and can therefore appear in commits, unless specifically excluded. [13].DS_Store files are included in archives, such as ZIP, created by OS X users, along with other hidden files and directories like the AppleDouble._. [14] [15] [16]