An Introduction to TRIM / White Space Reclamation

(Doc ID 2053431.1)

Last updated on JUNE 14, 2017

Applies to:

Solaris Operating System - Version 10 1/13 U11 to 11.3 [Release 10.0 to 11.0]
Information in this document applies to any platform.


The main purpose of the TRIM command is to reclaim unused space on thin-provisioned storage. It helps by actually deleting the free'd pages when a file is  deleted, thus ensuring  that when we come to perform a write there are  actually empty pages available.

This avoids the read, modify/erase, write cycle at the time when we need a low latency write to complete.


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