Samsung MZMPC128HBFU-00000 Manuale Utente

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        datasheet

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. Sector nubmer indicates the log 
sector to be returned as described in the following Table.

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.

This subcommand enables access to all S.M.A.R.T. capabilities within the device. Prior to receipt of a S.M.A.R.T. Enable Operations subcommand, Attri-
bute Values are neither monitored nor saved by the device. The state of S.M.A.R.T.—either enabled or disabled—will be preserved by the device across 
power cycles. Once enabled, the receipt of subsequent S.M.A.R.T. Enable Operations subcommands will not affect any of the Attribute Values. Upon 
receipt of the S.M.A.R.T. Enable Operations subcommand from the host, the device asserts BSY, enables S.M.A.R.T. capabilities and functions, clears 
BSY, and asserts INTRQ.

This subcommand disables all S.M.A.R.T. capabilities within the device including the device's attribute auto save feature. After receipt of this subcom-
mand the device disables all S.M.A.R.T. operations. Non self-preserved Attribute Values will no longer be monitored. The state of S.M.A.R.T.—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 S.M.A.R.T. Disable Operations subcommand from the host, the device asserts BSY, disables S.M.A.R.T. capabilities and functions, 
clears BSY, and asserts INTRQ.

After receipt of the device of the S.M.A.R.T. Disable Operations subcommand from the host, all other S.M.A.R.T. subcommands—with the exception of 
S.M.A.R.T. Enable Operations—are disabled, and invalid and will be aborted by the device—including the S.M.A.R.T. Disable Operations subcommand— 
returning the error code as specified in Table 7-9: “S.M.A.R.T. Error Codes” on page 30.

Any Attribute Values accumulated and saved to volatile memory prior to receipt of the S.M.A.R.T. 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 S.M.A.R.T. Read Attribute 
Values or a S.M.A.R.T. Save Attribute Values command.

00h

Log directory

RO

01h

SMART error log

RO

02h

Comprehensive SMART error log

RO

04h-05h

Reserved

RO

06h

SMART self-test log

RO

08h

Reserved

RO

09h

Selective self-test log

RW

0Ah-7Fh

Reserved

RO

80h-9Fh

Host vendor specific

R/W

A0h-FFh

Reserved

VS

RO - Log is read only by the host.
R/W - Log is read or written by the host.
VS - Log is vendor specific thus read/write ability is vendor specific.