词条 | CHKDSK |
释义 |
| name = chkdsk | logo = | screenshot = CHKDSK WIN10.PNG | screenshot size = | caption = Chkdsk.exe in action on drive C: in Windows 10 | developer = Digital Research, Microsoft, IBM | released = | latest release version = | latest release date = | operating system = DOS, FlexOS, 4690 OS, OS/2, Microsoft Windows | genre = Command | license = | website = n/a }} CHKDSK (short for "check disk") is a system tool in DOS, FlexOS[1], 4690 OS[2], OS/2 and Microsoft Windows. It verifies the file system integrity of a volume and fixes logical file system errors. It is similar to the fsck command in Unix and similar to Microsoft ScanDisk which co-existed with Implementations{{Expand section|date=February 2019}}Microsoft WindowsCHKDSK can be run from DOS prompt, Windows Explorer, Windows Command Prompt, Windows PowerShell or Recovery Console.[3] On Windows NT operating systems, CHKDSK can also check the disk surface for bad sectors and mark them (in MS-DOS 6.x and Windows 9x, this is a task done by Microsoft ScanDisk). The Windows Server version of CHKDSK is RAID-aware and can fully recover data in bad sectors of a disk in a RAID-1 or RAID-5 array if other disks in the set are intact.[4] On Windows NT family, a standard CHKDSK scan consists of three phases of testing file metadata. It looks for errors but does not fix them unless it is explicitly ordered to do so. Same applies to surface scan: This test, which could be extremely time-consuming on large or low-performance disks, is not carried out unless explicitly requested. CHKDSK requires exclusive write access to the volume to perform repairs.[5][6] Because of the exclusive access requirement and the time-consuming nature of CHKDSK operation, Windows Vista implemented a new file system health model in which the operating system fixes errors on the volumes as it encounters them. In the event that the problem is grave and a full scan is required, Action Center notifies the user to take the volume offline at the first convenience.[7] Windows Vista and Windows Server 2008 added self-healing ability, turned on by default, in addition to providing the CHKDSK command. It detects physical file system errors and silently fixes them on the fly. Thus, many problems previously discovered on running CHKDSK never appear. It is administered byfsutil repair command.[8][9]The alleged Windows 7 bugBefore the release of Windows 7, InfoWorld reported an alleged memory leak in CHKDSK; according to the report, the MS-DOSCHKDSK and UNDELETE in MS-DOS 5.0 have a bug which can corrupt data: If the file allocation table of a disk uses 256 sectors, running See also
References1. ^http://www.bitsavers.org/pdf/digitalResearch/flexos/1073-2003_FlexOS_Users_Guide_V1.3_Nov86.pdf {{Commons category|Screenshots of CHKDSK}}2. ^https://archive.org/details/4690OSV6r2UsersGuide/page/n169 3. ^{{Cite web|url = http://support.microsoft.com/kb/314058|title = Description of the Windows XP Recovery Console for advanced users|date = 11 July 2013|accessdate = 4 September 2014|website = Support|publisher = Microsoft|last = |first = |edition = 8.0}} 4. ^{{Cite book |title=Managing and Maintaining a Microsoft Windows Server 2003 Environment |first=Dan |last=Holm |first2=Orin |last2=Thomas |publisher=Microsoft Press |isbn=9780735614376 |year=2003 |chapter=11-3: Maintaining Disk Storage Volumes |page=11.25}} 5. ^{{cite web |title=An explanation of the new /C and /I Switches that are available to use with Chkdsk.exe |url=http://support2.microsoft.com/kb/314835 |website=Microsoft Support |publisher=Microsoft |accessdate=25 January 2019 |archiveurl=https://web.archive.org/web/20141024211818/http://support2.microsoft.com/kb/314835 |archivedate=24 October 2014 |date=1 December 2007}} 6. ^{{Cite web|url = https://technet.microsoft.com/en-us/library/bb457122.aspx|title = Troubleshooting Disks and File Systems|date = 3 November 2005|accessdate = 4 September 2014|website = Windows XP Professional Resource Kit|publisher = Microsoft|last = |first = }} 7. ^{{Cite web|url = http://blogs.msdn.com/b/b8/archive/2012/05/09/redesigning-chkdsk-and-the-new-ntfs-health-model.aspx|title = Redesigning chkdsk and the new NTFS health model|date = 10 May 2012|accessdate = |website = Building Windows 8|publisher = Microsoft|last = Bangalore|first = Kiran|editor-first = Steven|editor-last = Sinofsky}} 8. ^{{Cite web|last1=Chen|first1=Ken|title=NTFS Self-Healing is An Overlooked but Useful Feature in Windows 7|url=http://www.nextofwindows.com/ntfs-self-healing-is-an-overlooked-but-useful-feature-in-windows-7/|website=Next of Windows|date=4 August 2014}} 9. ^{{Cite web|last1=Pawar|first1=Amit|title=Self-healing NTFS in Windows Server 2008 and Windows Vista|url=http://blogs.technet.com/b/apawar/archive/2008/02/14/self-healing-ntfs-in-windows-server-2008-and-windows-vista.aspx|website=Amit Pawar - Infrastructure blog|publisher=Microsoft|date=13 February 2008}} 10. ^{{cite web|last1=Kennedy|first1=Randall C.|title=Critical Windows 7 bug risks derailing product launch|url=http://www.infoworld.com/article/2631567/microsoft-windows/critical-windows-7-bug-risks-derailing-product-launch.html|website=Infoworld|publisher=IDG|accessdate=19 February 2015|date=5 August 2009}} 11. ^{{cite web|last1=Warren|first1=Tom|title=Windows 7 RTM contains a rather nasty chkdsk bug|url=http://www.neowin.net/news/windows-7-rtm-contains-a-rather-nasty-chkdsk-bug|website=Neowin|accessdate=19 February 2015|date=5 August 2009}} 12. ^{{cite web|last1=Bott|first1=Ed|title=A killer Windows 7 bug? Sorry, no|url=http://www.zdnet.com/article/a-killer-windows-7-bug-sorry-no/|website=ZDNet|publisher=CBS Interactive|date=5 August 2009}} 13. ^{{Cite web|url = http://support.microsoft.com/kb/80496|title = When Not to Use MS-DOS 5.0 CHKDSK and UNDELETE Commands|date = 16 November 2006|accessdate = |website = Support|publisher = Microsoft|last = |first = |edition = 1.1}} External links
{{Windows commands}} {{DEFAULTSORT:Chkdsk}} 3 : External DOS commands|Hard disk software|OS/2 commands |
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