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Event ID 6 — Quota Minifilter Driver Integrity

Updated: January 27, 2011

Applies To: Windows Server 2008

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For quota enforcement to work, the quota minifilter driver must be working properly, and it must be correctly attached to the volume. If the quota minifilter driver is experiencing problems, quota scans might fail, and updated quota usage information of volumes and folders will not be available. If the driver cannot attach to the volume, quotas cannot be enforced on that volume.

Event Details

Product: Windows Operating System
ID: 6
Source: quota
Version: 6.0
Symbolic Name: QUOTA_MSG_ATTACH_FAILED
Message: The quota minifilter driver failed to attach to volume "%2 (%4)" because of an unexpected error. Error status: 0x%3 While the minifilter is detached quota enforcement, and management will be unavailable on the volume. Attempt to reattach the minifilter by using the filter manager command line tool or by dismounting and remounting the volume as soon as possible. If the operation fails, try restarting the system.

Resolve

Reattach the quota minifilter driver

You have to manually reattach the quota minifilter driver to the volume.

To perform this procedure, you must have membership in Administrators, or you must have been delegated the appropriate authority.

To reattach the quota minifilter driver to the volume:

  1. Open an elevated command prompt. Click Start, point to All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator.
  2. Type fltmc attach quota volume:, where volume is the drive letter of the volume, and then press ENTER. For example:

    fltmc attach quota c:

Verify

To verify that the quota minifilter driver is working properly, you must verify that it is attached to the volume.

To perform this procedure, you must have membership in Administrators, or you must have been delegated the appropriate authority.

To verify that the quota minifilter driver is attached to the volume:

  1. Open an elevated Command Prompt. Click Start, point to All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator.
  2. Type fltmc instances and press ENTER. The quota minifilter driver is attached to the volume if there is a Quota instance listed for the volume.

Related Management Information

Quota Minifilter Driver Integrity

File Services

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