Editing Windows 2000 (section)

=== NTFS 3.0 ===
{{main|NTFS}}

Microsoft released the version 3.0 of NTFS<ref name="NTFS3" /> (sometimes incorrectly called "NTFS 5" in relation to the kernel version number) as part of Windows 2000; this introduced [[disk quota]]s (provided by QuotaAdvisor), [[Encrypting File System|file-system-level encryption]], [[sparse file]]s and [[NTFS reparse point|reparse points]]. Sparse files allow for the efficient storage of data sets that are very large yet contain many areas that only have zeros.<ref>{{Cite web |date=February 26, 2007 |title=Sparse Files Use Quota Equal to Total Allocated Length |url=http://support.microsoft.com/kb/231388 |url-status=live |archive-url=https://web.archive.org/web/20121116222750/http://support.microsoft.com/kb/231388 |archive-date=November 16, 2012 |access-date=November 13, 2011 |website=Support.microsoft.com}}</ref> [[NTFS reparse point|Reparse points]] allow the [[Object Manager (Windows)|object manager]] to reset a file namespace lookup and let file system drivers implement changed functionality in a transparent manner.<ref name="NTFS">{{Cite web |title=Improved NTFS File System |url=http://www.microsoft.com/technet/prodtechnol/windows2000pro/evaluate/featfunc/bestperf.mspx#EME |url-status=dead |archive-url=https://web.archive.org/web/20080416234151/http://www.microsoft.com/technet/prodtechnol/windows2000pro/evaluate/featfunc/bestperf.mspx#EME |archive-date=April 16, 2008 |access-date=November 13, 2011 |website=Microsoft.com |df=mdy-all}}</ref> Reparse points are used to implement [[Volume Mount Point|volume mount points]], [[NTFS junction point|junctions]], [[Hierarchical Storage Management]], Native [[Structured storage|Structured Storage]] and [[Single Instance Storage]].<ref name="NTFS" /> Volume mount points and directory junctions allow for a file to be transparently referred from one file or directory location to another.

Windows 2000 also introduces a ''Distributed Link Tracking'' service to ensure file shortcuts remain working even if the target is moved or renamed. The target object's unique identifier is stored in the shortcut file on NTFS 3.0 and Windows can use the Distributed Link Tracking service for tracking the targets of shortcuts, so that the shortcut file may be silently updated if the target moves, even to another hard drive.<ref>{{Cite web |date=16 October 2012 |title=Distributed Link Tracking and Object Identifiers (Windows) |url=http://msdn.microsoft.com/en-us/library/windows/desktop/aa363997%28v=vs.85%29.aspx |url-status=live |archive-url=https://web.archive.org/web/20121023004948/http://msdn.microsoft.com/en-us/library/windows/desktop/aa363997(v=vs.85).aspx |archive-date=October 23, 2012 |access-date=27 November 2012 |website=[[Microsoft TechNet|TechNet]] |publisher=[[Microsoft]]}}</ref>