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Xbox Hard Disk Partitioning
written by Michael Steil, 8 May 2002
The Xbox uses a hard disk partitioning scheme that is hardwared in the kernel. The hard disk consists of a header, 3 game cache partitions, a system partition and a data partition:
| Offset | Size | Description |
| 0 MB | 5 MB | Disk Config Area This partition contains no filesystem. Various configuration data is stored on fixed offsets. |
| 0.5 MB | 750 MB | Game Cache A FATX volume containing temporary data of a game for faster access. |
| 750.5 MB | 750 MB | Game Cache B |
| 1500.5 MB | 750 MB | Game Cache C |
| 2250.5 MB | 500 MB | System Files FATX volume containing menu code, graphics, sound, DVD player, music import, ... |
| 2750.5 MB | 4895 MB | Data FATX volume containing saved games and imported CD audio tracks. |
| 7645.5 MB | 1896 MB | unused This space contains no data (filled with zeros). It is unused for compatibility with the first series which had only 8 GB hard disks. |
