Leopard updating boot caches
NTFS v3.0 includes several new features over its predecessors: sparse file support, disk use quotas, reparse points, distributed link tracking, and file-level encryption called the Encrypting File System (EFS).
NTFS is optimized for 4 KB clusters, but supports a maximum cluster size of 64 KB.
Hard links are similar to directory junctions, but refer to files instead.
Hard links may link only to files in the same volume, because each volume has its own MFT.
Because partition tables on master boot record (MBR) disks support only partition sizes up to 2 TB, multiple GUID Partition Table (GPT or "dynamic") volumes must be combined to create a single NTFS volume larger than 2 TB.
Booting from a GPT volume to a Windows environment in a Microsoft supported way requires a system with Unified Extensible Firmware Interface (UEFI) and 64-bit support.
Algorithms identifying the file system in a partition type 07 must perform additional checks to distinguish between HPFS and NTFS.
Microsoft has released five versions of NTFS: Although subsequent versions of Windows added new file system-related features, they did not change NTFS itself.
NTFS symbolic links are a new feature in the file system; all the others are new operating system features that make use of NTFS features already in place.
Notably affected structures are the volume allocation bitmap, modifications to MFT records such as moves of some variable-length attributes stored in MFT records and attribute lists, and indices for directories and security descriptors.