hdparm --user-master u --security-set-pass Eins /dev/sda

time hdparm --user-master u --security-erase Eins /dev/sda

/dev/sda:
Issuing SECURITY_ERASE command, password="Eins", user=user
ERASE_PREPARE: Input/output error

/dev/sda:

ATA device, with non-removable media
   Model Number:       KINGSTON SV300S37A120G                 
   Serial Number:      50026B774608D51F   
   Firmware Revision:  527ABBF0
   Transport:          Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6, SATA Rev 3.0
Standards:
   Used: unknown (minor revision code 0x0110)
   Supported: 8 7 6 5
   Likely used: 8
Configuration:
   Logical      max   current
   cylinders   16383   16383
   heads      16   16
   sectors/track   63   63
   --
   CHS current addressable sectors:   16514064
   LBA    user addressable sectors:  234441648
   LBA48  user addressable sectors:  234441648
   Logical  Sector size:                   512 bytes
   Physical Sector size:                   512 bytes
   Logical Sector-0 offset:                  0 bytes
   device size with M = 1024*1024:      114473 MBytes
   device size with M = 1000*1000:      120034 MBytes (120 GB)
   cache/buffer size  = unknown
   Nominal Media Rotation Rate: Solid State Device
Capabilities:
   LBA, IORDY(can be disabled)
   Queue depth: 32
   Standby timer values: spec'd by Standard, with device specific minimum
   R/W multiple sector transfer: Max = 16   Current = 1
   Advanced power management level: 254
   DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6
        Cycle time: min=120ns recommended=120ns
   PIO: pio0 pio1 pio2 pio3 pio4
        Cycle time: no flow control=120ns  IORDY flow control=120ns
Commands/features:
   Enabled   Supported:
      *   SMART feature set
      *   Security Mode feature set
      *   Power Management feature set
      *   Write cache
          Look-ahead
      *   Host Protected Area feature set
      *   WRITE_BUFFER command
      *   READ_BUFFER command
      *   NOP cmd
      *   DOWNLOAD_MICROCODE
      *   Advanced Power Management feature set
          Power-Up In Standby feature set
      *   SET_FEATURES required to spinup after power up
          SET_MAX security extension
      *   48-bit Address feature set
      *   Mandatory FLUSH_CACHE
      *   FLUSH_CACHE_EXT
      *   SMART error logging
      *   SMART self-test
      *   General Purpose Logging feature set
      *   WRITE_{DMA|MULTIPLE}_FUA_EXT
      *   64-bit World wide name
      *   IDLE_IMMEDIATE with UNLOAD
          Write-Read-Verify feature set
      *   {READ,WRITE}_DMA_EXT_GPL commands
      *   Segmented DOWNLOAD_MICROCODE
          unknown 119[6]
      *   Gen1 signaling speed (1.5Gb/s)
      *   Gen2 signaling speed (3.0Gb/s)
      *   Gen3 signaling speed (6.0Gb/s)
      *   Native Command Queueing (NCQ)
      *   Phy event counters
      *   NCQ priority information
      *   READ_LOG_DMA_EXT equivalent to READ_LOG_EXT
      *   DMA Setup Auto-Activate optimization
          Device-initiated interface power management
      *   Software settings preservation
      *   SMART Command Transport (SCT) feature set
      *   SCT Write Same (AC2)
      *   SCT Data Tables (AC5)
      *   reserved 69[3]
      *   DOWNLOAD MICROCODE DMA command
      *   SET MAX SETPASSWORD/UNLOCK DMA commands
      *   WRITE BUFFER DMA command
      *   READ BUFFER DMA command
      *   Data Set Management TRIM supported (limit 1 block)
Security:
   Master password revision code = 65534
      supported
      enabled
      locked
   not   frozen
      expired: security count
      supported: enhanced erase
   Security level high
   2min for SECURITY ERASE UNIT. 2min for ENHANCED SECURITY ERASE UNIT.
Logical Unit WWN Device Identifier: 50026b774608d51f
   NAA      : 5
   IEEE OUI   : 0026b7
   Unique ID   : 74608d51f
Checksum: correct