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6. Disk Drive Performance Hacks > 67. Linux’s Drive Performance Booster

Linux’s Drive Performance Booster

To be on the safe side, your new Linux installation starts up with the least common denominator of disk drive performance capabilities—typically DMA-33—robbing you of 50-150% of your potential performance. Once Linux is installed, you are free and encouraged to start tweaking the configuration of your disk drive and its interface to squeeze the most of them.

Warning

Setting HDPARM parameters too aggressively—that is, in excess of the disk controller or drive capabilities—can lead to data loss.

It is best to test HDPARM settings on a fresh installation of the operating system before committing any applications or programs to the drive and prepare to back down on the settings and reinstall the OS if the drive is unstable or the HDPARM tests show erratic results or fail.


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