Novell Storage Services

Novell Storage Services (NSS) is a file system used by the Novell NetWare operating system. Support for NSS was introduced in 2004 to SUSE Linux via low-level network NCPFS protocol. It has some unique features that make it especially useful for setting up shared volumes on a file server in a local area network.

Full nameNovell Storage Services
Introduced1998 with NetWare 5
Partition identifier0x69
Directory contentsB+ tree
File allocation?
Bad blocks?
Max. volume size8 TiB
Max. file size8 TiB
Max. number of files8 trillion
Max. filename length256 16-bit Unicode characters
Allowed characters in filenamesVariable; depends on namespace being used
Dates recordedAccess, Creation, Modified, Archived, Metadata Modified
Date rangeUnknown
ForksYes (available through the AFP namespace, which is always loaded)
AttributesReadonly, Hidden, System, Archive, Sharable, Transaction, Immediate Purge, Rename Inhibit, Delete Inhibit, Copy Inhibit, Link, Remote Data Access, Remote Data Inhibit, Compress Immediate, Data Stream Compress, Do Not Compress, No Stream Compress, Attr Archive, Volatile, Execute
File system permissionsNetware ACLs: Supervisor, Read, Write, Create, Erase, Modify, File Scan, Access Control; POSIX (RWX per owner, group and all) when NFS namespace is loaded
Transparent compressionYes
Transparent encryptionYes
Supported operating systemsNovell NetWare, SUSE Linux

NSS is a 64-bit journaling file system with a balanced tree algorithm for the directory structure. Its published specifications (as of NetWare 6.5) are:

  • Maximum file size: 8 TiB
  • Maximum partition size: 2 TiB
  • Maximum device size (Physical or Logical): 2 TiB
  • Maximum pool size: 8 TiB
  • Maximum volume size: 8 TiB
  • Maximum files per volume: 8 trillion
  • Maximum mounted volumes per server: unlimited if all are NSS
  • Maximum open files per server: 1 million
  • Maximum directory tree depth: limited only by client
  • Maximum volumes per partition: unlimited
  • Maximum extended attributes: no limit on number of attributes.
  • Maximum data streams: no limit on number of data streams.
  • Unicode characters supported by default
  • Support for different name spaces: DOS, Microsoft Windows Long names (loaded by default), Unix, Apple Macintosh
  • Support for restoring deleted files (salvage)
  • Support for transparent compression
  • Support for encrypted volumes
  • Support for data shredding

See also

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