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HFS Plus

Unknown year Active

Operating system entry sourced from Wikipedia: HFS Plus.

Key specifications

Allowed filenamecharacters	Unicode, NUL
Attributes	Color (3 bits, all other flags 1 bit), locked, custom icon, bundle, invisible, alias, system, stationery, inited, no INIT resources, shared, desktop
Bad blocks	B-tree
Date range	January 1, 1904 – February 6, 2040
Date resolution	1 s
Dates recorded	access, attributes modified, backed up, contents modified, created
Developer(s)	Apple Inc.
Directory contents	B-tree
File allocation	Bitmap
File systempermissions	NFSv4, ACLs, Mac OS X v10.4
Forks	Yes
Full name	Hierarchical File System Plus
Introduced	Mac OS 8.1
Max file size	EB
Max filename length	255 characters (255 UTF-16 encoding units, normalized to Apple-modified variant of Unicode Normalization Format D)
Max no. of files	4, 294, 967, 295 (232 − 1)
Max volume size	exabyte
Partition IDs	Apple Partition Map, MBR, GPT
Preceded by	HFS
Succeeded by	APFS
Supportedoperating systems	Mac OS 8.1, Mac OS 9, macOS
Transparentcompression	Mac OS X 10.6
Transparentencryption	Mac OS X 10.7, home directory, AES