# Entities Excision doesn’t take effect **URL:** \ **Category:** Troubleshooting\ **Created:** [May 4, 2020, 12:24pm UTC](https://forum.datomic.com/t/entities-excision-doesn-t-take-effect/1440 "2020-05-04T12:24:35Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Devyn](https://avatars.discourse-cdn.com/v4/letter/d/a9adbd/32.png) [@Devyn](https://forum.datomic.com/u/Devyn)\ **Post date:** [May 4, 2020, 12:24pm UTC](https://forum.datomic.com/t/entities-excision-doesn-t-take-effect/1440/1 "2020-05-04T12:24:35Z")
Dear Datomic support, After I tried to excise some of specific entities and got the transact success result, found that the excision doesn’t take effect (space did not free up, can still touch the entities) even if i ran the d/request-index, d/sync-index, d/gc-storage. Could you please help to advice the way to excise entities(4k+) from datomic and make it take effect? Thanks. Datomic version: 0.9.6014 ---
**Author:** ![jaret](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.datomic.com/jaret/32/45_2.png) [@jaret](https://forum.datomic.com/u/jaret)\ **Post date:** [May 8, 2020, 2:12pm UTC](https://forum.datomic.com/t/entities-excision-doesn-t-take-effect/1440/2 "2020-05-08T14:12:31Z")
Cross posting my reply on the other thread: > [@Entities Excision doesn't take effect](https://forum.datomic.com/t/entities-excision-doesnt-take-effect/1434/2): > > @Devyn Datomic On-prem’s Excision is unsuitable for the error-correcting task, as it does not restore any prior view of the facts. It’s also not suitable as a disk size cleanup and should be used sparingly as excision will put a substantial burden on background indexing. [https://docs.datomic.com/on-prem/excision.html](https://docs.datomic.com/on-prem/excision.html) space did not free up Is your goal here to clear up space or to removing data for privacy reasons/removing data older than some domain-defined retention period? If your goal…