Backup.7z

In the 7-Zip GUI , you can enable this by checking in the Add to Archive dialog. In the command line, use the -ms switch: -ms=on : Enables solid mode (default for 7z).

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

The "solid" feature in a file refers to Solid Compression , a method where 7-Zip treats multiple files as a single continuous data block. In the 7-Zip GUI , you can enable

: 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 7z(1) — p7zip-full — Debian stretch The "solid"

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

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

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