Smart Read Log Sector (Subcommand D5H); Smart Write Log Sector (Subcommand D6H); Smart Enable Operations (Subcommand D8H); Smart Disable Operations (Subcommand D9H) - IBM DTLA-305040 - Deskstar 41.1 GB Hard Drive Specifications

Off-line mode: The device executes command completion before executing the specified routine.
During execution of the routine the device will not set BSY nor clear DRDY. If the device is in the process
of performing its routine and is interrupted by a new command from the host, the device will abort or
suspend its routine and service the host within two seconds after receipt of the new command. After
servicing the interrupting command, the device will resume its routine automatically or not start its routine
depending on the interrupting command.
Captive mode: When executing self-test in captive mode, the device sets BSY to one and executes the
specified self-test routine after receipt of the command. At the end of the routine the device sets the exe-
cution result in the Self-test execution status byte (Figure 129 on page 0) and ATA registers as below
and executes command completion.
Status
Error
Cyl Low
Cyl High

12.32.6 SMART Read Log Sector (Subcommand D5h)

This command returns the specified log sector contents to the host.
The 512 bytes data are returned at a command and the Sector Count value shall be set to one. The
Sector Number shall be set to specify the log sector address.
Log sector address
01h
06h
80h-9Fh

Figure 128. Log sector addresses

12.32.7 SMART Write Log Sector (Subcommand D6h)

This command writes 512 bytes data to the specified log sector.
The 512 bytes data are transferred at a command and the Sector Count value shall be set to 1. The
Sector Number shall be set to specify the log sector address as shown in the above figure. If Read Only
log sector is specified, the device returns ABRT error.

12.32.8 SMART Enable Operations (Subcommand D8h)

This subcommand enables access to all S.M.A.R.T. 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 S.M.A.R.T. (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 enables
S.M.A.R.T. capabilities and functions and then saves any updated Attribute Values to the Attribute Data
sector.

12.32.9 SMART Disable Operations (Subcommand D9h)

This subcommand disables all S.M.A.R.T. capabilities within the device including the attribute Autosave
feature of the device. After receipt of this subcommand the device disables all S.M.A.R.T. operations.
Set ERR to one when self-test has failed
Set ABRT to one when self-test has failed
Set to F4h when self-test has failed
Set to 2Ch when self-test has failed
Content
SMART Error Log
SMART Self-test log
Host vendor specific
Deskstar 40GV & 75GXP hard disk drive specifications
Read Only
Read Only
Read/Write
167
Type