mergerfs is a union filesystem geared towards simplifying storage and management of files across numerous commodity storage devices.
Best aufs Alternatives ranked by AI · updated May 2025
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Advanced multi-layered unification filesystem for Linux
Price: Free
Top 4 aufs alternatives
2
mhddfs
mhddfs contributors
mhddfs is a FUSE-based filesystem for presenting multiple directories or mount points as one unified tree on Linux. It distributes newly created...
Pros
- Pools existing directories without reformatting their filesystems
- Uses a simple FUSE mount and familiar POSIX directory layout
- Can keep data accessible on individual source drives
Cons
- Less actively maintained and feature-rich than mergerfs
- FUSE overhead can reduce performance compared with kernel filesystems
- Limited policies and filesystem-management features
Liquesce is a Windows drive-pooling utility that combines multiple physical disks into one virtual drive. It is aimed at home users and...
Pros
- Free compared with most commercial Windows drive-pooling tools
- Combines disks with different capacities into one drive letter
- Can preserve existing files on pooled disks
Cons
- Less actively maintained and supported than DrivePool or Drive Bender
- Windows-only with no native Linux or NAS implementation
- Lacks the mature duplication and monitoring ecosystem of leading commercial options
4
Union filesystem for Linux, FreeBSD and NetBSD
Pros
- Supports multiple branches
- Advanced caching options
Cons
- Complex setup
- Limited documentation
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