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MACH16
S
LIM
L
ITE
3Gbps
SATA
S
TANDARD
S
OLID
-S
TATE
D
RIVE
P
ART
N
UMBER
:
M16SD2S(3)-
XXX
U(T)(X)-XXX
D
OCUMENT
N
UMBER
:
61000-07132-311
R
EVISION
N
UMBER
:
3.11
R
EVISION
D
ATE
:
01/15/2013
87
SMART
WRITE
LOG
(D6h)
SMART WRITE LOG (D6h) will write 512 bytes to the specified log sector. The values set in the LBA Low
and Sector Count registers will specify the log sector and sector number to be written.
SMART
ENABLE
OPERATIONS
(D8h)
SMART ENABLE OPERATIONS (D8h) will enable access to all S.M.A.R.T. capabilities. Attribute Values
are neither monitored nor saved by the drive until the receipt of the D8h subcommand. The current state
of S.M.A.R.T., whether enabled or disabled, is preserved by the drive across power cycles. Once
enabled, the receipt of any subsequent D8h subcommands will not affect any of the Attribute Values.
SMART
DISABLE
OPERATIONS
(D9h)
SMART DISABLE OPERATIONS (D9h) will disable all S.M.A.R.T. capabilities, including any and all timer
and event count functions that are exclusive to this feature. The receipt of the D9h subcommand will
cause the drive to disable all SMART operations. The current state of S.M.A.R.T., whether enabled or
disabled, is preserved across power cycles.
Notes
:
1. Upon receipt of the subcommand from the host, the remaining SMART subcommands are
disabled with the exception of SMART ENABLE OPERATIONS (D8h).
2. The drive will abort the remaining SMART subcommands and return an error code.
SMART
RETURN
STATUS
(DAh)
SMART RETURN STATUS (DAh) is used to communicate the reliability status of the drive upon request
of the host. The SSD is in immediate danger of drive failure (SMART-tripped state) if the Normalized
Attribute Value of any of its Warranty Attributes has exceeded the threshold value of the attribute. If the
SSD has entered a SMART-tripped state, then SMART RETURN STATUS (DAh) shall set the values of
LBA High and LBA Mid registers to 0x2C and 0xF4; otherwise, the command shall set the values of LBA
High and LBA Mid registers to the usual SMART signature values of 0x2C and 0xF4.