Editing HFS Plus (section)

== Criticisms ==
HFS Plus lacks several features considered staples of modern file systems like [[ZFS]] and [[NTFS]].<ref>{{cite web|url=https://www.zdnet.com/article/wwdcs-biggest-disappointment/|title=WWDC's biggest disappointment – ZDNet|first=Robin|last=Harris|website=[[ZDNet]]|url-status=live|archive-url=https://web.archive.org/web/20151022030417/http://www.zdnet.com/article/wwdcs-biggest-disappointment/|archive-date=2015-10-22}}</ref> Data [[Checksum|checksums]] are the most routinely cited missing feature.<ref name=siracusa>{{cite web|url=https://arstechnica.com/apple/2011/07/mac-os-x-10-7/12/|title=Mac OS X 10.7 Lion: the Ars Technica review|publisher=Ars Technica|author=John Siracusa|date=July 20, 2011|access-date=18 January 2017|url-status=live|archive-url=https://web.archive.org/web/20161222061714/http://arstechnica.com/apple/2011/07/mac-os-x-10-7/12/|archive-date=22 December 2016}}</ref>

Besides checksumming, features of modern file systems that HFS+ lacks include:
* nanosecond timestamps<ref name=siracusa />
* [[concurrency (computer science)|concurrent]] access (that is, more than one process can access the filesystem at the same time)<ref name=siracusa />
* [[Snapshot (computer storage)|snapshotting]]<ref name=siracusa />
* Support for dates beyond February 6, 2040<ref>{{Cite web|url=http://forensicswiki.org/wiki/Mac_OS_X#HFS.2FHFS.2B_date_and_time_values|title=Mac OS X – ForensicsWiki|website=forensicswiki.org|language=en|access-date=2017-04-09|archive-url=https://web.archive.org/web/20170410052933/http://forensicswiki.org/wiki/Mac_OS_X#HFS.2FHFS.2B_date_and_time_values|archive-date=2017-04-10|url-status=live}}</ref>
* sparse file support<ref name=siracusa />
* a better implementation of hard links (in other filesystems, these are typically multiple directory entries pointing to the same data blocks; hard links in macOS are implemented as small files that are stored in a special hidden directory)<ref name=siracusa />

HFS Plus was not designed for [[Unix-like]] systems, so features such as [[file system permissions]] and [[hard link]]s had to be retrofitted when Apple moved to Mac OS X.<ref name=siracusa />