TrimA feature of the Data Set management command available in the ATA8-ACS-2 specification. The command is used in the operating system used to wipe invalid data blocks on solid-state drives (SSD) which are no longer in use - including data blocks which have been left by deleted files.
Traditionally, flash media could not overwrite existing data as it first would need to first perform a 512KB block erase. Overwriting data on a SSD, required a longer read-modify-write operation which decreased the performance and speed of the SSD. The Trim command enables file system information to be collected by the OS and sends it to the SSD controller, which otherwise would not know it could delete those blocks.
The purpose of Trim is to improve the speed of SSD drives and ultimately boost the drives' overall read and write performance. Both the operating system and SSD firmware must support Trim. Trim may also be referred to as DisableDeleteNotify, or SSD Optimizer.
Stay up to date on the latest developments in Internet terminology with a free weekly newsletter from Webopedia. Join to subscribe now.
Webopedia's student apps roundup will help you to better organize your class schedule and stay on top of assignments and homework. Read More »20 Ways to Shorten a URL
If you need to shorten a long URL try this list of 20 free online redirection services. Read More »Top 10 Tech Terms of 2015
The most popular Webopedia definitions of 2015. Read More »
This Webopedia study guide describes the different parts of a computer system and their relations. Read More »Network Fundamentals Study Guide
Networking fundamentals teaches the building blocks of modern network design. Learn different types of networks, concepts, architecture and... Read More »The Five Generations of Computers
Learn about each of the five generations of computers and major technology developments that have led to the current devices that we use today. Read More »