NAND flash memory example by Dmitry Nosachev If the blocks are not empty, then the Solid-State Drive must delete the data inside them before information can be written again, which can add significant delay affecting performance.Īs you continue to store data and storage fills up, the drive will begin to run out of blocks, and because Solid-State Drives can only write data in pages of 4KB or 8KB inside of a 256KB block, you end with blocks that are not completely filled. TRIM is a feature used by an operating system to command the drive to find and delete any data on blocks that make up a deleted file, so later on, the drive can quickly fill them up again with new data. The process of filling an empty block with information is the fastest way to write to the storage, which is the main reason operating systems, such as Windows 10 or Windows 11, include support for TRIM. When you’re working with a file and ready to save it, the Solid-State Drive finds the necessary empty blocks and writes your data for long-term storage. Although they accomplish the same thing, they both store data. Solid-state drives work differently than traditional hard drives.
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