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The partition size is extended, but the file system remains the original size when you extend an NTFS volume

Article ID: 832316 - View products that this article applies to.

SYMPTOMS

In Microsoft Windows XP and in Windows Server 2003, after you use the Disk Management snap-in or the Diskpart.exe command-line utility to extend a basic or dynamic NTFS file system volume, the partition size is extended, but the file system remains its original size. You do not receive an error message, but when you view the disk information in the Disk Management snap-in, the volume appears as the extended partition size, but the value in the Capacity column still shows the original size. If you view the properties of the volume in My Computer, or if you run the Chkdsk.exe tool against the NTFS volume, both items report the file system size as it was before the extension.

Note You may still experience this problem on a computer even with Windows Server 2003 Service Pack 1 (SP1) or Windows Server 2003 Service Pack 2 (SP2) installed. However, the Diskpart.exe hotfix that is described in this article is included in Windows Server 2003 SP1 and in later versions contains a new command to resolve the problem if it is encountered. For more information, see the “More Information” section.

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CAUSE

This problem occurs because the NTFS driver exhausts its resources when it tries to extend the volume.

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RESOLUTION

Windows XP

Hotfix information

To resolve this problem, obtain the latest service pack for Microsoft Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

322389

(http://support.microsoft.com/kb/322389/EN-US/ )

How to obtain the latest Windows XP service pack

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

(http://support.microsoft.com/contactus/?ws=support)

Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must have Windows XP Service Pack 1 (SP1) installed.

Restart requirement

After you apply this hotfix, you do not have to restart the computer.

Hotfix replacement information

This hotfix does not replace any other previously released hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows XP, Itanium-based versions

Collapse this tableExpand this table

File name	File version	File size	Date	Time	Platform
Diskpart.exe	5.1.3564.0	420,864	04-Dec-2003	09:26	IA-64

Windows XP, x86-based versions

Collapse this tableExpand this table

File name	File version	File size	Date	Time	Platform
Diskpart.exe	5.1.3564.0	153,088	05-Dec-2003	01:26	x86

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STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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MORE INFORMATION

This hotfix includes a new Diskpart.exe utility command (extend filesystem) that you can use to extend the file system only. After you install the hotfix, to extend the file system only, type the following commands at the Diskpart prompt:

DISKPART> select volume #

Where # is the NTFS volume number of the volume where you want to extend the file system.

DISKPART> extend filesystem

Note The extend filesystem command is not currently documented in the Diskpart.exe Help file.

For example, the following Chkdsk utility output shows that the volume size for drive E: is 1 gigabyte (GB), but the Diskpart.exe utility shows the partition size as 2 GB:

C:\>chkdsk e:
The type of the file system is NTFS.
Volume label is DATA_VOL.

WARNING!  F parameter not specified.
Running CHKDSK in read-only mode.

CHKDSK is verifying files (stage 1 of 3)...
File verification completed.
CHKDSK is verifying indexes (stage 2 of 3)...
Index verification completed.
CHKDSK is verifying security descriptors (stage 3 of 3)...
Security descriptor verification completed.
Windows has checked the file system and found no problem. 1020095 KB total disk space.
        20 KB in 1 files.
         4 KB in 9 indexes.
         0 KB in bad sectors.
      7710 KB in use by the system.
      7152 KB occupied by the log file.
   1012361 KB available on disk.

      1024 bytes in each allocation unit.
   1020095 total allocation units on disk.
   1012361 allocation units available on disk.


Microsoft DiskPart version 5.1.3564

Copyright (C) 1999-2003 Microsoft Corporation.
On computer: MYSERVER

DISKPART> list volume

  Volume ###  Ltr  Label        Fs     Type        Size     Status     Info
  ----------  ---  -----------  -----  ----------  -------  ---------  --------
  Volume 0     D                      Removable     27 PB
  Volume 1     E   DATA_VOL    NTFS   Partition   2000 MB  Healthy
  Volume 2     C   Windows     NTFS   Partition   4001 MB  Healthy    System

The Diskpart utility's extend filesystem command extends the file system on the volume.

DISKPART> select volume 1 

DISKPART> extend filesystem

DiskPart successfully extended the file system on the volume.

DISKPART> exit

Leaving DiskPart...

After the extend filesystem command is used to extend the file system, the Chkdsk utility now shows the corrected new volume size of 2 GB:

C:\>chkdsk e:
The type of the file system is NTFS.
Volume label is DATA_VOL.

WARNING!  F parameter not specified.
Running CHKDSK in read-only mode.

CHKDSK is verifying files (stage 1 of 3)...
File verification completed.
CHKDSK is verifying indexes (stage 2 of 3)...
Index verification completed.
CHKDSK is verifying security descriptors (stage 3 of 3)...
Security descriptor verification completed.
Windows has checked the file system and found no problem.

   2047999 KB total disk space.
        20 KB in 1 files.
         4 KB in 9 indexes.
         0 KB in bad sectors.
      7835 KB in use by the system.
      7152 KB occupied by the log file.
   2040140 KB available on disk.

      1024 bytes in each allocation unit.
   2047999 total allocation units on disk.
   2040140 allocation units available on disk.

Note The extended volume size also appears correctly if you view the properties of the volume in My Computer and in the Disk Management snap-in.

For additional information about how to prevent this issue in Windows 2000, click the following article number to view the article in the Microsoft Knowledge Base:

329826

(http://support.microsoft.com/kb/329826/ )

Extending NTFS Volume Fails but Appears to Be Successful

For additional information about the Diskpart.exe utility, click the following article numbers to view the articles in the Microsoft Knowledge Base:

300415

(http://support.microsoft.com/kb/300415/ )

A Description of the Diskpart Command-Line Utility

325590

(http://support.microsoft.com/kb/325590/ )

How to Use Diskpart.exe to Extend a Data Volume

For additional information about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base:

816915

(http://support.microsoft.com/kb/816915/ )

New File Naming Schema for Microsoft Windows Software Update Packages

For additional information about the standard terminology that is used to describe Microsoft software updates, click the following article number to view the article in the Microsoft Knowledge Base:

824684

(http://support.microsoft.com/kb/824684/ )

Description of the Standard Terminology That Is Used to Describe Microsoft Software Updates

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