----- Original Message ----- From: Michael Schwendt <[EMAIL PROTECTED]> Date: Tue, 11 Mar 2003 10:10:15 +0100 To: [EMAIL PROTECTED] Subject: Re: hdparm settings > So, when you remove /etc/sysconfig/harddisks and reboot, running > "hdparm /dev/hdb" states that DMA and other settins are _off_? In my case, DMA is enabled, but the rest is not: /dev/hda: multcount = 16 (on) IO_support = 0 (default 16-bit) unmaskirq = 0 (off) using_dma = 1 (on) keepsettings = 0 (off) readonly = 0 (off) readahead = 256 (on) geometry = 38760/16/63, sectors = 39070080, start = 0 > My experience with recent kernels is that I don't need to use > /etc/sysconfig/harddiskhd* any longer. On the contrary, with early > 2.4.x kernels and possibly an older rc.sysinit script I had to > enable DMA and a few other settings myself in order to improve the > device/cache read timings by factor of 4-5. Additionally, I enabled > keepsettings. But with recent kernels, the default settings after > reboot look like this: > > # hdparm /dev/hda > > /dev/hda: > multcount = 32 (on) > I/O support = 1 (32-bit) > unmaskirq = 1 (on) > using_dma = 1 (on) > keepsettings = 0 (off) > nowerr = 0 (off) > readonly = 0 (off) > readahead = 8 (on) > geometry = 2490/255/63, sectors = 40011300, start = 0 > busstate = 1 (on) Lucky you :-) In my case, I have to enable 32-bit IDE interface and IRQ unmasking. I have been working with them enabled for months with no problems. This is on a pretty new i845 motherboard and IBM disks which should support almost anything. Felipe -- ______________________________________________ http://www.linuxmail.org/ Now with e-mail forwarding for only US$5.95/yr
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