Support for BitLocker Drive Encryption-BitLocker Drive Encryption provides additional security for critical system information and other data stored on NTFS volumes. For more information, see NTFS Health and Chkdsk.Īccess Control List (ACL)-based security for files and folders-NTFS allows you to set permissions on a file or folder, specify the groups and users whose access you want to restrict or allow, and then select the type of access. When NTFS is used with Cluster Shared Volumes, no downtime is required. For larger corruption issues, the Chkdsk utility, in Windows Server 2012 and later, scans and analyzes the drive while the volume is online, limiting time offline to the time required to restore data consistency on the volume. NTFS continuously monitors and corrects transient corruption issues in the background without taking the volume offline (this feature is known as self-healing NTFS, introduced in Windows Server 2008). For example, after a server crash, NTFS can recover data by replaying its log files. After a bad-sector error, NTFS dynamically remaps the cluster that contains the bad sector, allocates a new cluster for the data, marks the original cluster as bad, and no longer uses the old cluster. NTFS uses its log file and checkpoint information to restore the consistency of the file system when the computer is restarted after a system failure. (To find out about ReFS, see Resilient File System.) Practical applications For additional feature information, see the See also section of this topic. The newer Resilient File System (ReFS) offers some additional features, but we recommend that you use NTFS in production deployments of Windows Server 2012 R2 and earlier versions of Windows.įor information about new and changed functionality in NTFS in Windows Server 2012 R2, see What's New in NTFS. NTFS-the primary file system for recent versions of Windows and Windows Server-provides a full set of features including security descriptors, encryption, disk quotas, and rich metadata, and can be used with Cluster Shared Volumes (CSV) to provide continuously available volumes that can be accessed simultaneously from multiple nodes of a failover cluster. Applies To: Windows 10, Windows 7, Windows 8.1, Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2
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