Disk Wiki
A practical wiki for disks and storage: what to do when space runs out, how to safely move heavyweights like WeChat onto an external drive, which format to pick, and how to rescue things when they break, real cases plus systematic knowledge, one topic per article.
Move WeChat Chat History to an External Drive on Mac: Free Up Tens of GB, No Data Loss
A 256GB MacBook running out of space, with WeChat holding tens of GB and still growing? This is a complete record of relocating WeChat chat data onto an external drive: locating WeChat's actual storage folder, picking the right drive format, copying and verifying, switching with symbolic links, re-signing and restoring permissions. Every step explains its purpose and how to roll back, freeing 30GB+ once confirmed.
Which Format Should Your External Drive Use? APFS vs NTFS vs exFAT Compared
Which file system should an external drive be formatted with? This guide compares only the three mainstream formats a Mac user actually meets: APFS, NTFS and exFAT. The comparison covers native macOS read-write, cross-platform compatibility, maximum file size, reliability mechanisms, and permission and symlink support, and explains why NTFS is read-only on macOS and how to get write access without reformatting.