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ID Flag
Flag Value Worse DATA
Threshold
02h 00h 64h 64h CRC write Count 0 00h
MABN: Maximum acceptable bad block number
Note 1 Formula:
CBBN: Current bad block number
Value = ((MABN – CBBN)/ (MABN )) x 100
This formula calculates percentage of spare blocks. Value will be from 100 to 1
Note 2:
Average erase count / MAX erase count (SLC 100000, MLC 5000) * 100 (percentage)
5.1.2.2 Off-line Mode
SSD’s support the optional 28-bit S.M.A.R.T. EXECUTION OFF-LINE
IMMEDIATE (B0h/D4h) command per the ATA-8 specification. This command
causes the SSD to initiate the collection of S.M.A.R.T. data in an off-line mode
and then preserves this data across power and reset events. Supported
subcommands include those shown in the table below. Reference the ATA-8
specification for subcommand detail.
Table 5-7: Supported S.M.A.R.T. EXECUTE OFF-LINE IMMEDIATE
Subcommands
Execute S.M.A.R.T. off-line routine immediately in off-line mode
01h Execute S.M.A.R.T. Short self-test routine immediately in off-line mode
Execute S.M.A.R.T. Extended self-test routine immediately in off-line mode
Execute S.M.A.R.T. Selective self-test routine immediately in off-line mode
Abort off-line mode self-test routine
Execute S.M.A.R.T. Short self-test routine immediately in captive mode
Execute S.M.A.R.T. Extended self-test routine immediately in captive mode
Execute S.M.A.R.T. Selective self-test routine immediately in captive mode
5.2 SATA Commands
The SATA 2.6 specification is a super set of the ATA/ATAPI-7 specification with
regard to supported commands. SSD’s support the following features that are
unique to the SATA specification.
