RE: Defragmenting root drive in SBS 2003 specifically MFT
- From: v-stezhu@xxxxxxxxxxxxxxxxxxxx (Steven Zhu [MSFT])
- Date: Thu, 27 Apr 2006 09:27:31 GMT
Hi Sasha,
Thank for taking time to respond.
From your reply, I understand that you want to defrag MFT in Windows SBS2003. If I am off base, please let me know.
Based on my knowledge, the Disk Defragmenter tool has the following
limitations:
1. It can defragment only local volumes.
2. It can defragment only one volume at a time.
3. It cannot defragment one volume while scanning another.
4. It cannot be scheduled.
5. It can run only one Microsoft Management Console (MMC) snap-in at a
time.
6. It cannot defragment NTFS volumes with cluster sizes larger then 4
kilobytes (KB) in Windows 2000.This limitation has been removed for Disk
Defragmenter in Microsoft Windows XP and Microsoft Windows Server 2003.
7. Fine-grained movement of uncompressed NTFS file data is not possible in
Windows 2000. Moving a single file cluster also moves the 4-KB part of the
file that contains the cluster. This limitation has been removed for Disk
Defragmenter in Windows XP and later.
8. In Windows 2000, it does not defragment NTFS metadata files, such as the
Master File Table (MFT), or the metadata that describes a directory's
contents. This limitation has been removed in Windows XP and later. It
cannot defragment encrypted files in Windows 2000. This limitation has been
removed in Windows XP and later.
For more information about Disk Defragmenter Limitations in Windows XP,
please refer to the following article:
227463: Disk Defragmenter Limitations in Windows 2000, Windows XP, and
Windows Server 2003
http://support.microsoft.com/default.aspx?scid=kb;en-us;227463
As far as I know, some files you cannot Defragment. Some reasons that a
file might remain fragmented include:
1. The volume lacks adequate contiguous free space to defragment all files.
Disk Defragmenter requires at least 15 percent free disk space to
completely defragment a volume.
2. During defragmentation, a new file is created on the volume in disk
space that was previously free space. In this case, if Disk Defragmenter
tries to move a file to that space to defragment the file, the move fails
and the file remains fragmented.
3. The file is the master file table (MFT) on an NTFS volume. Because the
first fragment of the MFT cannot be moved, the MFT is typically contained
within two fragments when sufficient space is available on the volume. If
the MFT is contained within three or more fragments, Disk Defragmenter
looks for free space where the MFT might fit. If sufficient free space
exists, the MFT is moved as a whole (minus the first fragment). If space is
not available, the MFT is not defragmented.
4. The file is permanently excluded, in which case it might appear in the
defragmentation report as still being fragmented no matter how many times
you defragment the volume. The following files are permanently excluded
from being defragmented.
Bootsect.dos
Safeboot.fs
Safeboot.csv
Safeboot.rsv
Hiberfil.sys
Memory.dmp
Paging file
More information:
Disk Defragmenter
<http://www.microsoft.com/resources/documentation/Windows/XP/all/reskit/en-u
s/Default.asp?url=/resources/documentation/Windows/XP/all/reskit/en-us/prkd_
tro_asgk.asp>
Therefore, I am afraid there isn't any built-in tool to implement your
request. I spent several hours for further research regarding your request;
I can find the third-party tool to defrag the MFT, please refer to the
following web link:
http://www.majorgeeks.com/review.php?id=6
Warning: This response contains a reference to a third party World Wide Web
site. Microsoft is providing this information as a convenience to you.
Microsoft does not control these sites and has not tested any software or
information found on these sites; therefore, Microsoft cannot make any
representations regarding the quality, safety, or suitability of any
software or information found there. There are inherent dangers in the use
of any software found on the Internet, and Microsoft cautions you to make
sure that you completely understand the risk before retrieving any software
from the Internet.
=============================
Note: The third-party product discussed is manufactured by a vendor
independent of Microsoft; we make no warranty, implied or otherwise,
regarding this product's performance or reliability.
Thanks for your understanding and cooperating regarding this. If there is
anything unclear, feel free to let me know and I hope the above information
helps.
Have a good day.
Best Regards,
Steven Zhu
MCSE
Microsoft Online Partner Support
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