1HDAPSD(8) hdapsd HDAPSD(8)
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6 hdapsd - park the drive in case of an emergency
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9 hdapsd [-f|-d <device>|-s <sensitivity>|-a|-v|-b|-p|-t|-y|-l|-V|-h]
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12 -d --device=<device>
13 <device> is likely to be hda or sda. Can be given multiple times
14 to protect multiple devices.
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16 -f --force
17 Force unloading heads, even if kernel thinks different (on pre
18 ATA7 drives). This only works when adding devices by hand (-d).
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20 -s --sensitivity=<sensitivity>
21 How sensitive hdapsd should be to movements. Defaults to 15,
22 higher values mean less sensitive.
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24 -a --adaptive
25 Adaptive threshold (automatic increase when the built-in key‐
26 board/mouse are used).
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28 -v --verbose
29 Get verbose statistics.
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31 -b --background
32 Run the process in the background.
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34 -p --pidfile[=<pidfile>]
35 Create a pid file when running in background. If <pidfile> is
36 not specified, it's set to /var/run/hdapsd.pid.
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38 -t --dry-run
39 Don't actually park the drive.
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41 -y --poll-sysfs
42 Force use of sysfs interface to accelerometer.
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44 -l --syslog
45 Log to syslog instead of stdout/stderr.
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47 -V --version
48 Display version information and exit.
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50 -h --help
51 Display help and exit.
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54 You can send SIGUSR1 to deactivate hdapsd for 8 seconds.
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58hdapsd 20090401 2009-04-01 HDAPSD(8)