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The published specifications for 32-bit NWFS are:
  • Maximum file size: 4GB

  • Maximum volume size: 1TB

  • Maximum files per volume: ?

  • Maximum files per server: 16 million

  • Maximum directory entries: 16 million

  • Maximum volumes per server: 64

  • Maximum volumes per partition: 8

  • Maximum open files per server: 100,000

  • Maximum directory tree depth: 100 levels

  • Characters used: ASCII double-byte

  • Maximum Extended Attributes : 16

  • Maximum Data Streams : 10

  • Support for different name spaces: Microsoft Windows Long names, Unix , Apple Macintosh

  • Support for restoring deleted files (salvage)

  • Support for journaling (transaction tracking service)

  • Support for block suballocation


Transparent file compression was also supported, although this had a significant impact on the performance of file serving.

Every name space requires its own separate directory entry for each file. While the maximum number of directory entries is 16,000,000, two resident name spaces would reduce the usable maximum number of directory entries to 8,000,000, and three to 5,333,333.

16-bit NWFS could handle volumes of up to 256MB. However its only name space support was a dedicated API to handle Macintosh clients.


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