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Manual
9/11/2014
PSFEM1xxxGQxxx
Viking Technology
Revision B
Page 31 of 33
www.vikingtechnology.com
A: Number of free blocks when SSD changes to Write protect mode. (Plane)
B: Maximum Acceptable Number of Bad Blocks (Plane)
C: Number of Maximum Bad Blocks (Plane)
D: Number of free blocks when SSD changes to Write protect mode. (All Plane)
E: Acceptable Number of Bad Blocks (All Plane)
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
Value
Description
00h 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
02h
Execute S.M.A.R.T. Extended self-test routine immediately in off-line mode
04h
Execute S.M.A.R.T. Selective self-test routine immediately in off-line mode
7Fh
Abort off-line mode self-test routine
81h
Execute S.M.A.R.T. Short self-test routine immediately in captive mode
82h
Execute S.M.A.R.T. Extended self-test routine immediately in captive mode
84h
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.
5.2.1 Native Command Queuing (NCQ)
SSD’s support the Native Command Queuing (NCQ) command set, which
consists of
• READ FPDMA QUEUED
• WRITE FPDMA QUEUED
Note: With a maximum queue depth less than or equal to 32.