Common filesystem features

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This is the glossary of the common filesystem features table.

The intention of this table is to provide an at-a-glance list of features and specifications for each filesystem.

Inventor[edit]

List the names of those credited with the design of the filesystem specification. This should not include those responsible for writing the implementation.

Name[edit]

The full, non abbreviated, name of the filesystem itself.

Native operating system[edit]

The name of the operating system in which this filesystem debuted.

Partition identificator[edit]

The partitioning scheme and marker used to identify that a partition is formatted to this filesystem.

Bad sector allocation[edit]

Describe how the filesystem allocates and isolates bad sectors.

File allocation[edit]

Describes how the filesystem allocates sectors in-use by files.

Directory structure[edit]

Describes how the subdirectories are implemented.

Namespace[edit]

Lists the characters that are legal within file and directory names.

Maximum filename size[edit]

The maximum number of characters that a file or directory name may contain.

Maximum files[edit]

The maximum number of files the filesystem can handle.

Maximum volume size[edit]

The maximum size of a volume that the filesystem specification can handle. This may differ from the maximum size an operating system supports using a given implementation of the filesystem.

Dates handled[edit]

What type of dates and times the filesystem can support, which may include:

Creation date[edit]

The date and time the file was created.

Access date[edit]

The date and time when the file was last accessed for read.

Modified date[edit]

The date and time when the file was last accessed for write, even if no writes were actually performed.

Changed date[edit]

The date and time related attributes were modified. This may include ACLs and the file/directory name.

Backed-up date[edit]

The date and time when the file was last backed up.

Maximum date[edit]

The maximum year that can be handled by the filesystem, as per the specification.

Attributes[edit]

Lists the basic file attributes available.

Named streams[edit]

Determines if the filesystems supports multiple data streams. NTFS refers to these as alternate data streams, HPFS as extended attributes and HFS calls them forks.

Per-volume compression[edit]

Does the filesystem support real-time transparent compression and decompression of an entire volume.

Per-volume encryption[edit]

Does the filesystem support real-time transparent encryption and decryption of an entire volume.

Per-file compression[edit]

Does the filesystem support real-time transparent compression and decompression of individual files.

Per-file encryption[edit]

Does the filesystem support real-time transparent encryption and decryption of individual files.

Access control lists[edit]

Does the filesystem support multi-user access control lists (ACLs).