OS Manuals

zpool-ddtprune(8)

zpool-ddtprune — Prunes the oldest entries from the single reference dedup table(s)

ZPOOL-DDTPRUNE(8) System Manager's Manual ZPOOL-DDTPRUNE(8)

zpool-ddtprune — Prunes the oldest entries from the single reference dedup table(s)

zpool ddtprune -d days | -p percentage pool

This command prunes older unique entries from the dedup table. As a complement to the dedup quota feature, allows removal of older non-duplicate entries to make room for newer duplicate entries.

The amount to prune can be based on a target percentage of the unique entries or based on the age (i.e., every unique entry older than N days).

zdb(8), zpool-status(8)

June 17, 2024 OpenZFS

zfs 2.4.4-r3 · os · ingested 2026-09-30