![]() ![]() Issuing a Secure Erase command requires a disk utility program and cannot be done if the disk is in use, so they are normally used with bootable USB or CD images. To get around this limitation, SSDs can accept a "Secure Erase" command which will wipe all data from the drive and return it to its initial state from the factory. Because of this, the operating system has little control over the physical placement of data on the drive, so writing multiple times to the drive will only server to wear it faster and may not overwrite the entire drive. SSDs emulate traditional HDD sectors with software in order to make them plug in replacements for HDDs. Solid State Drives store data on flash memory chips, which can be rewritten a relatively limited number (in the 10,000 to 100,000 range) of times. This overwriting can be repeated multiple times for additional assurance that the original data is not recoverable. Erasing the disk is a matter of overwriting all of the sectors on the disk, usually with all zeros or else random data. The disk is divided into physical sectors and the operating system stores data in these sectors. ![]() Traditional disk drives store data on magnetic material on the surface of one or more disk platters, which can be read and rewritten millions of times. Storage Hardware Types Traditional Hard Disk Drives (HDDs) ![]()
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