EXT4 | How does it work?
History and schematics of one of the best file system!
Notes: https://maplecircuit.dev/videos/2025-...
0:00 Intro
1:54 History
3:05 Larger FS
5:45 Extents
12:20 Compatibility
13:51 Htrees
14:36 Fast FSCK
16:25 Allocation
21:09 Metadata Checksums
23:17 Better Times
24:10 Extended Attributes
25:45 Quotas
26:45 Barriers
28:27 Flexible Block Groups
30:33 Meta Block Groups
33:33 End!