Cool Kernel and Filesystems

3 - drive/filesystem tuning

The Linux kernel seems particularly bad at setting sensible defaults for your drives.

hdparm /dev/hda -d 1 -c 1

this enables DMA and 32-bit file access.
If you ask it nicely, Linux will enable DMA by default (on your primary drive) but rarely seems to set DMA on any others, or 32-bit access.



If too infatuated with your boot time message

tunefs -c (a large number)

will increase the number of reboots before your drives get fscked.


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