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Apple Computing Products:
macOS - Desktop Hardware
Hard Disk Spins Down By Itself...
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<blockquote data-quote="mac57" data-source="post: 230673" data-attributes="member: 17052"><p>I have a Power Mac G5, 2.3 GHz dual core, 2.5 GB memory, 250 GB hard disk. I notice that when I don't use my machine for some reasonably short period of time (half hour or so), the disk spins down autonomously. The computer isn't entering sleep, just the disk is spinning down. I know this is happening because I can hear it - a very recognizable sound!</p><p></p><p>This means that I sometimes have to wait while it spins back up when I go to use the machine again. More worrying though is that the constant spinning up and down is going to prematurely wear the drive. It is much less stressful to these mechanisms to just run continuously than to spin up and down multiple times a day. </p><p></p><p>Is there a place where I can disable this behaviour? I have checked my System Preferences, but have not found anything that would seem to be related to disk behaviour. Perhaps some magic Terminal command?</p><p></p><p>I have the system preferences Energy panel set to put the machine to sleep after 3 hours of inactivity, so I know that this is not the cause. It happens much faster than three hours and anyway, the machine is not going to sleep, just spinning down the drive. </p><p></p><p>Any and all pointers much appreciated. I am running OS X Tiger 10.4.6.</p></blockquote><p></p>
[QUOTE="mac57, post: 230673, member: 17052"] I have a Power Mac G5, 2.3 GHz dual core, 2.5 GB memory, 250 GB hard disk. I notice that when I don't use my machine for some reasonably short period of time (half hour or so), the disk spins down autonomously. The computer isn't entering sleep, just the disk is spinning down. I know this is happening because I can hear it - a very recognizable sound! This means that I sometimes have to wait while it spins back up when I go to use the machine again. More worrying though is that the constant spinning up and down is going to prematurely wear the drive. It is much less stressful to these mechanisms to just run continuously than to spin up and down multiple times a day. Is there a place where I can disable this behaviour? I have checked my System Preferences, but have not found anything that would seem to be related to disk behaviour. Perhaps some magic Terminal command? I have the system preferences Energy panel set to put the machine to sleep after 3 hours of inactivity, so I know that this is not the cause. It happens much faster than three hours and anyway, the machine is not going to sleep, just spinning down the drive. Any and all pointers much appreciated. I am running OS X Tiger 10.4.6. [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
Hard Disk Spins Down By Itself...
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