how does trim initiate ssd performance

[Bartolomeo]

The TRIM command is a procedure with the unwanted data blocks directly into the cells of a flash SSD to be marked as unused. To use this feature a solid state disk with the appropriate equipment and a supported operating system is necessary. Currently only Windows 7 and Linux from version 2.6.28 to deal with TRIM. If data is deleted from the operating system, whether through the trash. In the case of hard disks, this presents no particular obstacle, because the sectors are no longer used by the hard disk as free, and to be overwritten at the next opportunity with new data without having to be deleted.

[Udyan]

SSDs arises a problem in this process, which can lead to loss of power. The controller of an SSD without TRIM command to not get when data is deleted and the corresponding regions of the SSDs will be marked as "unused", since this operation is performed on the file system at operating system level. Since a SSD compared to the hard drive is simply not possible, however, flash-filled cells to override, it can lead to delays, since the affected flash cells can be deleted first and then not again described.

[Catawba]

The TRIM command solves this problem in which he the controller in the same moment the deletion notifies a file that the corresponding flash cell be marked as "unused" and in the course of the next deletion of the so-called erasable blocks can be made completey free . So no delay occurs at the next letter, because the affected cells are already empty and ready to be rewritten. SSDs are direct memory access, this means that the unit can transmit information directly.

[Bayougoula]

The SSD can act internally to facilitate the exchange of information takes place later. The unit will be prepared by clearing the blocks in this notice of it and that allows you to receive new blocks without having to spend extra time in the time to erase the old block. It is certainly a big plus for anyone with a MacBook Air, the new range that incorporates this type of unit.

[MACuser]

The first is that the flash memory that are built with the SSD has a limited life based on the number of writes. Which means that come a certain number of write operations, the memory cell will be useless and lose that small portion of storage. This also happens with hard drives but with many more write cycles. Allows you to write evenly across the flash memory in a way that minimizes wear. It allows an operating system to tell a SSD which blocks of data are not in us.