bin/81692: [patch] atacontrol support for disk APM and acoustic management

Mon May 30 21:30:02 PDT 2005

>Number:         81692
>Category:       bin
>Synopsis:       [patch] atacontrol support for disk APM and acoustic management
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          change-request
>Submitter-Id:   current-users
>Arrival-Date:   Tue May 31 04:30:01 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator:     Gil Kloepfer
>Release:        FreeBSD 5.4-RELEASE i386
>Organization:
Self
>Environment:
System: FreeBSD limbic.kloepfer.org 5.4-RELEASE FreeBSD 5.4-RELEASE #0: Sun May 22 12:52:26 CDT 2005 root at build.int.kloepfer.org:/usr/src/sys/i386/compile/DELLDIM i386

>Description:
Attached is a patch to enhance atacontrol so that it may
control an ATA hard disk's advanced power management (APM) and
acoustic management features.  The former is typically important
with laptop/notebook hard disks where the drives are designed
to operate in low power mode by default.  For systems where
this is not important, it can lead to the drive constantly
spinning up-and-down, leading to reduced performance.  This
feature can also be used to enable power management where it
is not enabled by default.

Acoustic management functions similarly.

Note that /usr/include/sys/ata.h (in the source as
sys/sys/ata.h) is modified to include the appropriate
symbolic representation of the APM and acoustic feature
codes from the ATA specification.

>How-To-Repeat:
This is not a bug, so there's nothing to repeat.

>Fix:
The following patch is uuencoded in order to prevent modification
by e-mail servers.  It patches the following files:

(based in /usr/src)
sbin/atacontrol/atacontrol.c
sbin/atacontrol/atacontrol.8
sys/sys/ata.h

(yes, I really did include the additions to the manpage!!)

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end
>Release-Note:
>Audit-Trail:
>Unformatted: