1. Background and Prerequisites Compared with Ext4, Btrfs is a younger file system with more features to play with — snapshots, subvolumes, checksum self-verification, software RAID, and even transparent compression. That said, if you do not have the operations capability behind you, it is best not to use Btrfs. This article records the process of pulling a Btrfs disk out of a Synology DSM system and reading its data.

To respond quickly to user needs and meet the requirements of marketing campaigns, internet products usually have a very high release frequency. Adopting agile development shortens the delivery cycle and speeds up product iteration, but it also brings challenges to a project’s file management. Frontend engineering faces users directly, bears