COMMAND

    NTFS

SYSTEMS AFFECTED

    WinNT 4.0

PROBLEM

    An amazing new hotfix was published by Microsoft:

        DOCUMENT: Q229607
        TITLE   : File Corruption on an NTFS Volume with More Than 4 Million Files

    Without hotfix below,  there are corruptions  when you create  and
    delete files  on an  NTFS volume  that holds  more than  4 million
    files.  Problems are due  to an error in calculations  in NTFS.SYS
    (overflow of a 32 bits counter ?).

SOLUTION

    One thing the  KB article doesn't  mention regarding this  problem
    is that you can check to  see if you're running into this  problem
    by checking the  size of the  MFT by typing:   dir /a $mft  at the
    root  of  a  volume.   Perhaps  the  reason the KB article doesn't
    mention this is that it's  not true; sometimes size *is*  the size
    of the MFT and sometimes, well, it just isn't.  It often tends  to
    be 16K.  There are  two more accurate tools for  determining this:
    ntfsstat from MS and ntfsinfo from Mark Russinovich.

    Patch:

        ftp://ftp.microsoft.com/bussys/winnt/winnt-public/fixes/usa/nt40/Hotfixes-PostSP5/NTFS-fix/