Backup.7z

: If a portion of a solid block is damaged, it can potentially affect all files within that same block.

The "solid" feature in a file refers to Solid Compression , a method where 7-Zip treats multiple files as a single continuous data block. backup.7z

: Modifying or deleting a file within a solid archive is more resource-intensive because the entire solid block must be rebuilt. How to use it : If a portion of a solid block

-ms=off : Disables solid mode for faster individual file access. backup.7z

When creating a backup, this feature provides several benefits and trade-offs:

-ms=2g : Limits solid blocks to 2GB to balance compression and access speed. 7z(1) — p7zip-full — Debian stretch