A volume may show up as "raw" in disk management after you extend the partition, but chkdsk shows the file system as NTFS

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Article ID: 2261358 - View products that this article applies to.
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SYMPTOMS

When you extend a volume by using FSExtend, the volume may show as "raw" in disk management. However, when you run chkdsk, the file system is shown as NTFS.

Additionally, you see the following error message in the System log:

Log Name: System
Source: Ntfs
Event ID: 55
Level: Error
Description:
The file system structure on the disk is corrupt and unusable. Please run the chkdsk utility on the volume <driveletter>:

CAUSE

The issue occurs because of one of the following reasons:
  • The file system structure on the disk is corrupted.
  • There is not enough disk space for the file system extend.

RESOLUTION

To resolve this issue, use one of the following methods.

Method 1

If there is too little disk space to mount the volume, shrink the NTFS transaction log to 4 MB. Then, the disk will have enough space to mount the volume.

To do this, follow these steps.
  1. To shrink the NTFS transaction log to 4 MB, run the following command:

    chkdsk d: /l:4096 /f
  2. Determine whether you can access the disk. If you can access the disk, you should free up some free space and then return the NTFS transaction log to the default value of about 65 MB. To do this, run the following command:

    chkdsk d: /l: 65536 /f

Method 2

Run the following command on the disk to fix any errors on the disk:

chkdsk /f <drive>

After chkdsk is completed successfully, restart the server. Then, run FSExtend on the drive to extend the file system. To do this, run the following command:

FSExtend <drive>

This should extend the file system on the drive, and the disk should be accessible.

Properties

Article ID: 2261358 - Last Review: August 30, 2010 - Revision: 2.0
APPLIES TO
  • Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
  • Microsoft Windows Server 2003, Datacenter x64 Edition
  • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
  • Microsoft Windows Server 2003, Enterprise x64 Edition
  • Microsoft Windows Server 2003, Standard Edition (32-bit x86)
  • Microsoft Windows Server 2003, Standard x64 Edition
Keywords: 
KB2261358

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