On Wed, Dec 08, 2004 at 09:41:15PM +0900, Rob wrote: > > ad0: 43979MB <IBM-DTLA-307045/TX6OA50C> [89355/16/63] at ata0-master PIO4 > > acd0: CDROM <CRD-8520B/1.00> at ata1-master PIO4 > > > >The harddisk is very new and can do UDMA100. With a UDMA66 controller > >I expect the harddisk to operate at least at 66 MB/sec. Any ideas why > >the speed is only PIO4? > > I just realize that I have put in /boot/loader.conf: > > hw.ata.ata_dma="0" > > to prevent a WRITE_DMA panic at bootup. > That's probably the reason why the harddisk speed is forced > to PIO4, right?
Yes. Kris
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