Messages in this thread | | | Date | Sat, 14 Apr 2001 14:28:39 +0200 | From | Kurt Roeckx <> | Subject | Re: SW-RAID0 Performance problems |
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On Sat, Apr 14, 2001 at 11:38:06AM +0200, Andreas Peter wrote: > Am Samstag, 14. April 2001 09:04 schrieb David Rees: > > > OK, so it's not the RAID setup. There's two things that can cause this. > > One is that DMA is turned off (what does hdparm /dev/hda and hdparm > > /dev/hdc show?), the second was that the drives are on the same channel > > (which obviously isn't the case here). Can you verify that the drives are > > in DMA mode? > > hdparm /dev/hda > > /dev/hda: > multcount = 16 (on) > I/O support = 0 (default 16-bit) > unmaskirq = 0 (off) > using_dma = 1 (on)
Does turning unmaskirq on help?
Kurt
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