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ADLINK ASD8P-MT1 Series User Manual

Page 36

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Page 36 of 43

ASD8P-MT1 Specification

SMART READ LOG SECTOR (Code D5h)

This command returns the indicated log sector contents to the host. Sector count sepcifies the

number of sectors to be read from the specified log. The log transfferred by the drive shall start at

the first sector in the speicified log, regardless of the sector count requested.

SMART READ LOG SECTOR (Code D6h)

This command writes 512 bytes of data to the specified log sector. The 512 bytes of data are

transferred at a command and the LBA Low value shall be set to one. The LBA Low shall be set

to specify the log sector address. If a Rea Only log sector is specified, the device returns ABRT

error.

SMART READ LOG SECTOR (Code D8h)

This subcommand enables access to all SMART capabilities within the device. Prior to receipt of

a SMART Enable Operations subcommand, Attribute Values are neither monitored nor saved by

the device. The state of SMART—either enabled or disabled—will be preserved by the device

across

power cycles. Once enabled, the receipt of subsequent SMART Enable Operations

subcommands will not affect any of the Attribute Values. Upon receipt of the SMART Enable

Operations subcommand from the host, the device asserts BSY, enables SMART capabilities and

functions, clears BSY, and asserts INTRQ.

SMART READ LOG SECTOR (Code D9h)

This subcommand disables all SMART capabilities within the device including the device's

attribute auto save feature. After receipt of this subcommand the device disables all SMART

operations. Non self-preserved Attribute Values will no longer be monitored. The state of

SMART—either enabled or disabled—is preserved by the device across power cycles. Note that

this subcommand does not preclude the device's power mode attribute auto saving.

Upon receipt of the SMART Disable Operations subcommand from the host, the device asserts

BSY, disables SMART capabilities and functions,clears BSY, and asserts INTRQ. After receipt of

the device of the SMART Disable Operations subcommand from the host, all other SMART

subcommands—with the exception of SMART Enable Operations—are disabled, and invalid and

will be aborted by the device—including the SMART

Any Attribute Values accumulated and saved to volatile memory prior to receipt of the SMART

Disable Operations command will be preserved in the device's Attribute Data Sectors. If the

device is re-enabled, these Attribute Values will be updated, as needed, upon receipt of a SMART

Read Attribute Values or a SMART Save Attribute Values command.