dvc cache

$ dvc cache dir

/home/user/myproject/.dvc/cache

# Set cache to external drive for more storage space
dvc cache dir /mnt/external/dvc-cache

$ dvc cache dir
/mnt/external/dvc-cache

# Set a shared cache directory using global config
dvc cache dir --global /home/user/shared-dvc-cache

# Remove custom cache directory setting
dvc cache dir --unset

# See what would be migrated without making changes
dvc cache migrate --dry

Migrating cache from DVC 2.x to 3.0 format:
  - Moving: .dvc/cache/ab/cd1234... -> .dvc/cache/files/md5/ab/cd1234...
  - Moving: .dvc/cache/12/ef5678... -> .dvc/cache/files/md5/12/ef5678...
  
Total: 245 files, 15.3 GB

# Migrate cache structure
dvc cache migrate

# Migrate cache and update all .dvc files
dvc cache migrate --dvc-files

.dvc/cache/
└── files/
    └── md5/
        ├── ab/
        │   └── cd1234567890abcdef1234567890ab  # File content
        └── 12/
            └── ef5678901234abcdef5678901234ef

# Use hardlinks (default, fastest)
dvc config cache.type hardlink

# Use symlinks
dvc config cache.type symlink

# Use reflinks (copy-on-write, requires filesystem support)
dvc config cache.type reflink

# Use copies (slowest, most compatible)
dvc config cache.type copy

# Prevent accidental modification of cached files
dvc config cache.protected true

# Allow cache sharing between users (sets proper permissions)
dvc config cache.shared group

du -sh .dvc/cache

rm -rf .dvc/cache

dvc status