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Introduction to Linux - A Hands on Guide
This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
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Turn on DMA for the first hard drive
hdparm -d1 /dev/hda
here is mean of DMA for first hard drive?
mean of d1?
Test cache read performance of the first hard drive
hdparm -T /dev/hda
here mean T?
Enable energy saving spindown after inactivity
hdparm -S 5 /dev/hda
hdparm -K 1 /dev/hda
here what are the mean of S, K, 5 and 1?
Please write clearly...your post is hard to understand. And if you want to know what the meaning of these options are, read the man page for the hdparm command. It explains everything, as would a quick Google search.
For the most part, you appear to be ignoring comments from me and others as to how best to interact with this site. In most of your threads, you have not posted any follow-up when people offered advice, suggested where you could look, or simply asked you for some clarification. You also have not responded to my e-mail on this.
This is now a formal warning: Please do not continue posting random questions without any follow-up---especially when you don't show evidence of having done the simple Google searches.