ID/It.   Attribute Name                  Description
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01/001   Raw Read Error Rate             Raw rate of media errors per megabyte of data over the SATA interface.
05/005   Reallocated Sector Count        New failing block count.
09/009   Power On Hours Count            Lifetime hours powered on.
                                                    Total number of operation hours from the time the device leaves the factory.
0C/012   Power Cycle Count               Count of power cycles.
                                                     True power cycles, excluding power mode commands.
AA/170   Grown Failing Block Count       This attribute tracks the number of blocks/pages utilized to replace bad blocks.
                                                   This is based on specified NAND part/die.
AB/171   Program Fail Count              This attribute is used to count the number of NAND program fails.
AC/172   Erase Fail Count                This attribute is used to count the number of NAND program erase failures.
AD/173   Wear Leveling Count             Average erase count of all good blocks.
AE/174   Unexpected Power Loss Count     This attribute is used to count the number of times unexpected power loss occurs.
B5/181   Non-4k Aligned Access           This attribute tracks the number of user data accesses (both reads and writes)
                                                      where LBAs are not 4KB aligned (LBA % 8 != 0)
                                                      or where size is not modulus 4KB (block count != 8),
                                                     assuming logical block size (LBS) = 512B)
B7/183   SATA Interface Downshift        This attribute is used to count the number of interface downshifts
                                                       encountered between the host and the device.
BB/187   Reported Uncorrectable Errors   This attribute tracks the number of uncorrectable (UNC) media errors {51h 10h, 51h 44h, 51h 01h}
                                                       reported back to the host for all data access commands.
                                                         Errors encountered by drive self test (DST) are NOT included.
BC/188   Command Timeout                 This attribute tracks the number of command time outs as defined by an active command
                                                   being interrupted by a HRESET, COMRESET, SRST, or other command.
BD/189   Factory Bad Block Count         OTP bad block count.
C4/196   Reallocated Event Count         New failing block count: each new failing block will be re-allocated with a free block.
C5/197   Current Pending Sector Count    Will always be 0 as error handling will be done at the field.
C6/198   Smart Off-line Scan
         Uncorrectable Error Count       Uncorrectable error count detected during SMART off-line scan.
C7/199   UDMA CRC Error Count            The rate of CRC errors occurring in Ultra ATA transfers to or from the host.
                                          See the Ultra ATA CRC specification for Normalized and Worst Ever definitions.
CA/202   Percentage Of
         The Rated Lifetime Used         Block erase counts are summed across one CE.
                                          The normalized total block erase count is between 0–100 using integer division.
                                          Divide by 50 for MLC NAND and 1000 for SLC NAND.
                                          The return value is the difference between the calculated number and 100.
CE/206   Write Error Rate                Raw error rate when writing.
                                          # of NAND program status fails per MB of SATA data written.