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Event ID: 50 Source: Ntfs

Source
Level
Description
{Delayed Write Failed} Windows was unable to save all the data for the file. The data has been lost. This error may be caused by a failure of your computer hardware or network connection. Please try to save this file elsewhere.
Comments
 
See M330174 for information related to "Delayed Write Failed" error messages.
As per ME969880, you may get this message when you try to restore a large sparse file. See the article on how you can prevent the SQL database file from having a sparse attribute.
As per Microsoft: "This problem occurs because of changes that were made to the Classpnp.sys file in Windows Server 2003 SP1. These changes were also incorporated into the x64 editions of Windows. These changes caused a compatibility issue with the Raiddisk.sys driver in HP SecurePath". See ME912593 for a hotfix applicable to Microsoft Windows Server 2003.

This event may occur when you start your Microsoft Windows Server 2003-based computer that is running Windows Clustering, because of a conflict between the NTFS file system and the cluster services driver component (Clusdisk) filter. See ME885688 for details on this issue.

This event occurs when you have a very large file on an NTFS file system volume and you try to compress the file by using NTFS File Compression, or you try to copy the file to an NTFS compressed folder. See ME927912 for details.
As per Microsoft: "Windows could not save data from memory to a disk because of problems with network connections or with hardware. The data has been lost. If the data is still in memory, try to save it again. To determine the root cause of the problem, look in Event Viewer for messages that indicate problems with your disk or network connection". See MSW2KDB for more details.

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