×
Create a new article
Write your page title here:
We currently have 3,185 articles on s23. Type your article name above or create one of the articles listed here!



    s23
    3,185Articles

    hdparm is used in Linux for setting harddisk options.

    To view current settings, simply run: hdparm /dev/hda (or /hdb, /hdc, etc.)

    -c1 enables 32-bit I/O

    -d1 enables DMA

    -X66 enables ATA/33

    PIO mode Switch Burst Rate
    0 -X08 3.3MB/sec
    1 -X09 5.2MB/sec
    2 -X10 8.3MB/sec
    3 -X11 11.1MB/sec
    4 -X12 16.7MB/sec


    MW DMA mode Switch Burst Rate
    0 -X32 4.2MB/sec
    1 -X33 13.3MB/sec
    2 -X34 16.6MB/sec
    UDMA mode Switch Burst Rate
    2 (ATA/33) -X66 33MB/sec
    4 (ATA/66) -X68 66MB/sec
    5 (ATA/100) -X69 100MB/sec

    Red Hat uses /etc/rc.sysinit to call scripts /etc/sysconfig/harddiskhda, /etc/sysconfig/harddiskhdb, etc. to run hdparm upon boot.

    File: /etc/sysconfig/harddiskhda:

    USE_DMA=1

    EIDE_32BIT=1

    To enable DMA during boot, add the following line to your lilo.conf file:

    append = "ide0=dma"


    Cookies help us deliver our services. By using our services, you agree to our use of cookies.