UFS
E427676
UFS (Unix File System) is a long-standing, robust file system widely used in Unix-like operating systems, particularly BSD variants, for organizing and managing data on disk.
All labels observed (3)
| Label | Occurrences |
|---|---|
| UFS canonical | 3 |
| SunOS/Solaris UFS | 1 |
| UFS 4.0 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4279144 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: UFS Context triple: [FreeBSD, supportsFileSystem, UFS]
-
A.
XFS
XFS is a high-performance 64-bit journaling file system originally developed by SGI, widely used on Linux for handling large files and parallel I/O workloads.
-
B.
UHS
UHS is the stock ticker symbol for Universal Health Services, a major U.S.-based hospital and healthcare services company.
-
C.
U3
U3 is one of the main lines of the Nuremberg U-Bahn rapid transit system in Nuremberg, Germany.
-
D.
UnionFS
UnionFS is a union file system that allows multiple directories or file systems to be transparently overlaid into a single coherent filesystem view, commonly used for layered container images.
-
E.
F2FS
F2FS (Flash-Friendly File System) is a Linux file system optimized for NAND flash-based storage devices, designed to improve performance and lifespan on solid-state media.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: UFS Target entity description: UFS (Unix File System) is a long-standing, robust file system widely used in Unix-like operating systems, particularly BSD variants, for organizing and managing data on disk.
-
A.
XFS
XFS is a high-performance 64-bit journaling file system originally developed by SGI, widely used on Linux for handling large files and parallel I/O workloads.
-
B.
UHS
UHS is the stock ticker symbol for Universal Health Services, a major U.S.-based hospital and healthcare services company.
-
C.
U3
U3 is one of the main lines of the Nuremberg U-Bahn rapid transit system in Nuremberg, Germany.
-
D.
UnionFS
UnionFS is a union file system that allows multiple directories or file systems to be transparently overlaid into a single coherent filesystem view, commonly used for layered container images.
-
E.
F2FS
F2FS (Flash-Friendly File System) is a Linux file system optimized for NAND flash-based storage devices, designed to improve performance and lifespan on solid-state media.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Unix file system
ⓘ
file system ⓘ |
| alternativeName |
FFS
ⓘ
Fast File System ⓘ
linked to:
Berkeley Fast File System
|
| commonlyUsedIn |
BSD operating systems
ⓘ
DragonFly BSD ⓘ FreeBSD ⓘ NetBSD ⓘ OpenBSD ⓘ |
| designedBy |
Marshall Kirk McKusick
ⓘ
University of California, Berkeley ⓘ |
| designedFor | Unix-like operating systems ⓘ |
| fullName | Unix File System ⓘ |
| hasVariant |
4.2BSD Fast File System
ⓘ
linked to:
Berkeley Fast File System
4.3BSD Fast File System ⓘ
linked to:
Berkeley Fast File System
FFSv1 ⓘ FFSv2 ⓘ SunOS/Solaris UFS ⓘ
linked to:
UFS
UFS1 ⓘ UFS2 ⓘ |
| historicallyUsedIn |
AIX
ⓘ
HP-UX ⓘ Solaris ⓘ
linked to:
Solaris operating system
SunOS ⓘ |
| influenced |
ext2 file system
ⓘ
linked to:
ext2
other Unix-like file systems ⓘ |
| introducedIn | 4.2BSD ⓘ |
| license | varies by implementation ⓘ |
| optimizedFor |
general-purpose workloads
ⓘ
large file systems (relative to earlier Unix file systems) ⓘ |
| replaced | original Unix file system ⓘ |
| supports |
background fsck (in some BSD implementations)
ⓘ
journaling via UFS logging (Solaris) ⓘ soft updates (BSD) ⓘ |
| supportsBlockSize | configurable block sizes ⓘ |
| supportsFeature |
access control lists (in some implementations)
ⓘ
hard links ⓘ hierarchical directory structure ⓘ journaling (in some implementations) ⓘ ownership ⓘ permissions ⓘ quotas ⓘ snapshots (in some implementations) ⓘ soft updates (in some implementations) ⓘ symbolic links ⓘ |
| supportsInodeStructure | fixed inodes ⓘ |
| supportsMetadata | per-file metadata in inodes ⓘ |
| usedAs | default root file system on many BSD systems ⓘ |
| usesAllocationStrategy | cylinder groups ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: UFS Description of subject: UFS (Unix File System) is a long-standing, robust file system widely used in Unix-like operating systems, particularly BSD variants, for organizing and managing data on disk.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.