For example, 1TB SSD (SP010TSSD301RW0) or pSLC 512GB SSD (SP512GISSD501RW0) can be triggered by a 5-pin Feature Connector to execute a 4-way Interleave Multiple Block Erase function to complete whole-drive sanitization in around 10 seconds.ġ.2 Repeatedly writing over the drive The second sanitization method is to use normal IO commands to overwrite each logical block address on the drive. ![]() SP Industrial SSDs support ACS-2/ACS-3 specifications to provide a 4-way interleave multiple block erase function to sanitize a whole drive effectively. It instructs a drive to perform a block erase on all memory blocks containing user data, even if they are not user accessible. The ACS-2/ACS-3 specification specifies a “BLOCK ERASE” command that is part of its SANITIZE feature set. There is also an enhanced “ERASE UNIT ENH” command that writes a vendor-defined pattern, such as a 1MB binary file with a 0x55 content. ![]() Traditionally, the ATA security command set specifies an “ERASE UNIT” command that erases all user-accessible areas on the drive by writing all binary zeros or ones.
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