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Date:      Thu, 9 Feb 2006 18:03:33 +0100
From:      Ewald Jenisch <a@jenisch.at>
To:        freebsd-questions@freebsd.org
Subject:   Acoustic management for ATA Harddisks?
Message-ID:  <20060209170333.GA7415@aurora.oekb.co.at>

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Hi,

Is there a way to turn on acoustic management for ATA harddisks?

atactl tells me the disk is capable of "automatic acoustic management":

# atacontrol cap 0 0
ATA channel 0, Master, device ad0:

Protocol              ATA/ATAPI revision 6
device model          HDS722516VLAT80
.
.
.
Feature                      Support  Enable    Value   Vendor
write cache                    yes      yes
read ahead                     yes      yes
dma queued                     yes      yes     31/0x1F
SMART                          yes      yes
microcode download             no       no
security                       yes      no
power management               yes      yes
advanced power management      yes      no      0/0x00
automatic acoustic management  yes      no      254/0xFE        128/0x80
#


What's the proper way to turn acoustic management on under FreeBSD (5.4).

Thanks in advance for your help,
-ewald




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