Off topic help re: ZFS / ZSTD compression ratio

[diskdiddler]

Hi, sorry - this is obviously a low priority.

How does TrueNAS calculate the compression ratio against content for a disk.
Example setting ZSTD-11 on some of my highly compressible data which isn't needed with regularity, it'll show a 1.21 or so in the console.

Is there any way to surface this compression ratio, within an SSH session via CLI command?
Thank you.

 

[sretalla]

Is there any way to surface this compression ratio, within an SSH session via CLI command?

zfs get compressratio pool/dataset

 

[diskdiddler]

Thank you!