Messages in this thread | ![/](/images/icornerl.gif) | | From | Andreas Peter <> | Subject | Re: SW-RAID0 Performance problems | Date | Sat, 14 Apr 2001 11:38:06 +0200 |
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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) keepsettings = 0 (off) nowerr = 0 (off) readonly = 0 (off) readahead = 8 (on) geometry = 59556/16/63, sectors = 60032448, start = 0
the same on /dev/hdc
I played with different hdparm-settings, but it's not possible to speed up the HDs
Andreas -- Andreas Peter *** ujq7@rz.uni-karlsruhe.de
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