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All issuesVolume 316, Issue 2IT NewsStorage

SSD TRIM

SearchStorage, Thursday, July 11th, 2024

SSD TRIM is a command for the Advanced Technology Attachment (ATA) interface that enables an operating system (OS) to inform a NAND flash solid-state drive (SSD) which data blocks it can erase because they are no longer in use.

The use of this command can improve the performance of writing data to SSDs and contribute to longer life for the SSD.

The T13 Technical Committee of the International Committee for Information Technology Standards (INCITS) has incorporated the TRIM command into the ATA standard. For the ATA interface, TRIM provides a way for the system OS to tell the SSD that some areas containing data are no longer in use, thus allowing the writing of new information to those areas. Simply put, the command tells the drive that the data can be removed from some areas.

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