: To extract a single file from the middle of a large backup.7z solid archive, the software must decode all preceding data in that solid block, making partial restores slower.
: If a portion of a solid block is damaged, it can potentially affect all files within that same block. 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). : To extract a single file from the middle of a large backup
-ms=2g : Limits solid blocks to 2GB to balance compression and access speed. 7z(1) — p7zip-full — Debian stretch backup.7z
When creating a backup, this feature provides several benefits and trade-offs: