NTFS System Files (103657)
The information in this article applies to:
- Microsoft Windows NT Server 3.1
- Microsoft Windows NT Workstation 3.1
- Microsoft Windows NT Advanced Server 3.1
This article was previously published under Q103657 SUMMARY
When a volume is formatted with the NT file system (NTFS), multiple
NTFS system files are created in the root directory of the NTFS
volume. These system files can be stored at any location on the NTFS
volume. Consequently, damage to certain locations on the volume will
not as likely render the entire volume inaccessible. Listed below is a
description of the ten NTFS system files currently implemented in the
retail version of Windows NT.
MORE INFORMATION
$attrdef, Attribute Definitions Table: Contains the definition of all
system and user-defined attributes on the volume.
$badclus, Bad Cluster File: Contains all the bad clusters on the
volume.
$bitmap, Cluster Allocation Bitmap: Contains the bitmap for the
entire volume, showing which clusters are used.
$boot, Boot File: Contains the volume's bootstrap if the volume is
bootable.
$logfile, Log File: Used for recoverability purposes.
$mft, Master File Table (MFT): Contains a record for every file on
the NTFS volume in its Data attribute.
$mftmirr, Master File Table2 (MFT2): Mirror of the MFT used for
recoverability purposes.
$quota, Quota Table: Table used to indicate disk quota usage for each
user on a volume.
$upcase, Upcase Table: Table used for converting uppercase and
lowercase characters to the matching uppercase Unicode characters.
$volume, Volume: Contains volume information such as volume name and
version.
| Modification Type: | Major | Last Reviewed: | 11/20/2003 |
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| Keywords: | kbother KB103657 |
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