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*4)
Automatic Acoustic Management (AAM)
The host writes to the Sector Count filed with the requested acoustic management
level and executes this command with subcommand code 42h, and then Automatic
Acoustic Management is enabled. The AAM level setting is preserved by the
drive across power on and COMRESET.
Performance mode (Fast Seek)
Acoustic mode (Slow Seek)
Abort
Non Operate
High-speed seek to which gives priority to the performance operates as for
"Performance mode", and low-speed seek by which the seek sound is suppressed
operates as for "Acoustic mode".
Setting the seek mode by this command is applied to the seek operation in all
command processing.
*5)
Write-Read-Verify feature (optional)
Table 5.36 Write-Read-Verify feature sector counts
SC
00h (Mode 0)
01h (Mode 1)
02h (Mode 2)
03h (Mode 3)
04h-FFh
C141-E245
AAM Level
SN
-
Enabled Always
-
The first 65,536 logical sectors written by the host
after every spin-up (or reset) or after issuing this
set features shall be verified.
-
Device may determine, for itself, how many logical
sectors to do.
Verify count
The first (Verify Sector Count x 1024) logical
sectors written by the host after every spin-up or
after issuing this set features shall be verified.
-
Reserved (Abort)
5.3 Host Commands
Sector Count Filed
C0h-FEh
80h-BFh
01h-7Fh
00h, FFh
Description
5-125
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