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Old 08-27-2008, 09:39 AM   #1
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Registered: May 2007
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Question How to setup write back cache on a USB Flash Drive during Disk spinning down?

Hi everybody,

I have seen somebody mentioning to use write back cache for extending idle time of hard drive in order to save energy. I would like to know more details to setup configure write back cache and to monitor disk state? Are there any websites/ documents where I can look for the configuration?

Somebody recommend to use hdparm -C /dev/hda, when i use it always show active.

Thanks a lot in advance for the helps.
Old 08-30-2008, 06:51 AM   #2
Registered: Aug 2007
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Perhaps you could have a look at the section "Disk Power Management" of this guide:


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