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UserDoc:AmigaOS File Systems
From AmigaOS Documentation Wiki
Revision as of 23:39, 11 December 2017 by Daniel Jedlicka (Added information about NGFS.)
| FastFileSystem 2
| SmartFileSystem 2
|Bootable?||Yes||Yes||Yes||Yes||No||Yes, on AmigaOne X-1000 and later machines using amigaboot|
|DosType||DOS\03 0x444f5303||DOS\07 0x444f5307||SFS\00 0x53465300||SFS\02 0x53465302||JXF\04 0x4A584604||NGF\00 0x4E474600|
|Max. Filename Length||30 characters||107 characters||107 characters||107 characters||107 characters||255 characters (fewer if the filename is UTF-8 encoded)|
|Max. Partition Size||2 TB to 128 TB||2 TB to 128 TB||128 GB||1 TB||256 TB||100 EiB|
|Max. File Size||4 GB - 2 Bytes||4 GB - 2 Bytes||4 GB - 2 Bytes||1 TB||256 TB||2^64 - 1 Bytes|
|Supported Block Size||512 to 32768||512 to 32768||use 512||use 512||512||256 to 65536 (auto selected)|
|Comments||Legacy file system, not recommended for AmigaOS 4.x due to lack of long filename support. Can be used for bootloader partition in AmigaOS 4.x only setup.||Current file system, bootable, can be used with AmigaOS 4.x, recovery tools available, not as fast as SFS, requires validation if disk error.||Current file system, bootable, can be used with AmigaOS 4.x, some recovery tools available. Fast, does not require validation if disk error.||Current file system, bootable, can be used with AmigaOS 4.x. Fast, does not require validation if disk error. No recovery tools.||Fastest but not backwards compatible with some 68K legacy software. No recovery tools. Discontinued starting with 4.1 Final Edition.||Vector-port-based file system, full DOS compatibility. Journalling, full check/repair facility provided.|
- SFS\00 and SFS\02 support other block sizes but only 512 bytes should be used since it is slower with larger blocks. JXFS only supports 512 block size.
- Recovery tools are located in Media Toolbox in the SYS:System drawer. Always have a backup!