HPFS Features and limits

• • FS-size upto 2 terabyte (2048 GiB) by design
  • OS/2 implementation limit of 64 GiB due to shared cache design (5 bits of 32 for cache use)
  • Allocation in single 512-byte sectors
  • Filename maximum length of 254 characters
  • Support for multiple codepages for filenames
  • B-trees used for allocation and directories
  • Multi-level cache: Paths, Directories and Data