Spinpoint M8-DVR OEM Product Manual REV 1.0
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A value of F1h written by t he host into the device’s Sector Count Register before issuing this command shall
cause this feature to be enabled. Any other meaning of this value or any other non-zero value written by the
host into this register before issuing this command may differ fro m device to device.
8.2.34.3 Smart enable operations (D8h)

This command enables all SMART capabilities within the device. Prior to receipt of this command SMART
data are neither monitored nor saved by th e device. The state of SMART (either enabled or disabled) shall be
preserved by the device across power cycles. Once enabled, the receipt of subsequent SMART ENABLE
OPERATIONS commands shall not affect any SMART data or functions.
8.2.34.4 Smart execute o ff-line immediate (D4h)

This command causes the device to immediately initiate the activities that collect SMART data in an off-line
mode and then save this data to the device’s non-volatile memory.
During execution of its off-line activities the device shall not set BSY nor clear DRDY.
If the device is in the process of performing its set of off-line data collection activities (as a result of
receiving a
SMART EXECUTE OFF-LINE IMMEDIATE command f rom the host), and is interrupted by any new
command from the host except a SMART DISABLE OPERATIONS, SMART EXECUTE OFF-LINE
IMMEDIATE, or STANDBY IMMEDIATE command, the device shall suspend or abort its off -line data
collection activities and service the host within two seconds after receipt of the new command. After
servicing the interrupting command from host the device may immediately re -initiate or resume its off-line
data collection activities without any additional commands f rom host
If the device is in the process of performing its off-line data collection activities and is interrupted by a
STANDBY IMMEDIATE co mmand from the host, the device shall suspen d or abort its off-line data
collection activities, and service the host within two seconds after receipt of the command. After receiving a
new command that causes the device to exit a power saving mode, the device shall initiate or resume off-line
data collection activities without any additional commands from the host unless the device aborted these
activities.
If the device is in the process of performing its off-line data collection activities and is interrupted by a
SMART DISAB LE OPERATIONS command from the host, the device shall suspend or abort its off-li ne
data collection activities and service the host within two seconds after receipt of the command. Upon receipt
of the next SMART ENABLE OPERATIONS command the device may, after the next vendor specified
event, either re-initiate its off-line data collection activities or resume those activities from where they had
been previously suspended.
If the device is in the process of performing its off-line data collection activities and is interrupted by a
SMART EXECU TE OFF-LINE IMMEDIATE command from the host, the device shall abort its off-line
data collection activities and service the host within two seconds after receipt of the command. The device
shall then re-initiate its off-line data collection activities in response to the new EXECUTE O FF-LINE
IMMEDIATE command.