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This is equivalent to the ATA TRIM command and the SCSI UNMAP command.īesides the above specificationcompliant features, the Samsung NVMe driver also provides support for disk end of life, wherein the user data in the NVM disk can still be read even when the disk exhausts the P/E cycles and becomes read oonly. Exercise the SSD TRIM feature using Dataset Management - De-allocate command.Read the command from the medium and compare the data read to a comparison data buffer transferred as part of the command using the Compare command.Set a range of logical blocks to zero using the Write Zeros command.Mark a logical block as invalid using the Write Uncorrectable command.Erase all user contents present in the NVM subsystem by deleting the encryption key with which the user data was previously encrypted using the Format NVM command.Erase all user content present in the NVM subsystem so that the data is not recoverable using the Format NVM command.Change the logical block addressing (LBA) data size and/or metadata size using the Format NVM command.Upgrade the device firmware using Firmware Activate and Firmware Image Download commands.In addition, the Samsung NVMe driver supports optional commands, which support the following features: "Samsung NVMe drivers are Microsoft Windows Hardware Quality Labs (WHQL) tested and in compliance with all the mandatory features and commands of NVMev1.1 specification and NVMe: SCSI Translation Reference v1.4.