I edited rc.local and DMA is now turned off everytime I load linux
I would like to know if there is some file in which hdparm settings are stored so that DMA is turned off *permanently* In the boot process I still get the
hda: dma_intr: status=0x51 { DriveReady SeekComplete Error } hda: dma_intr: error=0x84 { DriveStatusError BadCRC }
errors. Is there some way that I can disable echoing of these errors? (It kinda gives me an uneasy feeling ;-)
Just for curiosity: When I checked out /var/log/demsg I found out this line
hda: 8452080 sectors (4327 MB) w/256KiB Cache, CHS=526/255/63, UDMA(33)
Also the BIOS gives the following info about my HDD: Pri Master : 6.01 ST34311A Ultra DMA Mode-2 , S.M.A.R.T. Capable and Status OK
It means that my HDD supports UDMA , then why I have to disable it to keep things normal? Does disabling it have effect on the performance?