Back إتش بي إف إس Arabic High Performance File System Czech High Performance File System German HPFS Spanish HPFS Estonian HPFS Finnish HPFS (structure de fichiers) French HPFS Galician HPFS ID HPFS Italian
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| Developer(s) | Microsoft, IBM |
|---|---|
| Full name | High Performance File System |
| Introduced | November 1989 with OS/2 1.2 |
| Partition IDs | 0x07 (MBR) |
| Structures | |
| Directory contents | B tree |
| File allocation | B+ tree |
| Bad blocks | List |
| Limits | |
| Max volume size | 64 GB (as implemented) 2 TB (theoretical) |
| Max file size | 2 GB |
| Max no. of files | Unlimited |
| Max filename length | 255 characters |
| Allowed filename characters | Single-byte from 0x20 to 0xFF |
| Features | |
| Dates recorded | Access, Creation, Modified |
| Forks | Yes |
| Attributes | Read-only, hidden, system, archive |
| File system permissions | Yes (only in HPFS386) |
| Transparent compression | No |
| Transparent encryption | No |
| Other | |
| Supported operating systems | OS/2, Windows NT, Linux, DragonFly BSD, eComStation, ArcaOS |
HPFS (High Performance File System) is a file system created specifically for the OS/2 operating system to improve upon the limitations of the FAT file system. It was written by Gordon Letwin and others at Microsoft and added to OS/2 version 1.2, at that time still a joint undertaking of Microsoft and IBM, and released in 1988.
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