--- William Warren <hescominsoon at emmanuelcomputerconsulting.com> wrote: > I hve a PE sc430 running sata drives. transfer rates are jsut fine > and > it show no DMA either. I think the DMA transfers run just fine in > sata > and do not need to be enabled by default. Also some disk tools in > linux > have not caught up to the sata revolution yet. If your tests show > low > transfers then you have an issue. I have the type of transfers > during > tests i expect so i think the tools are erroneously reporting dms off > > because they don't understand sata drives yet. > I get terrible data transfers and lots of errors while writing to the disk. Well, it seems that I will have to wait until CentOS 5 beta :) Thanks Gabriel > first last wrote: > > --- James Pearson <james-p at moving-picture.com> wrote: > > > >> On 23/10/06, first last <prelude_2_murder at yahoo.co.uk> wrote: > >>> I am trying to use CentOS 4 on this machine and it does not allow > >> me to > >>> set DMA to 1, it just says that it is not possible. I have tried > >>> updating to the latest release and it still won't work. > >>> > >>> I have searched for it on Google and there is a thread mentioning > >> the > >>> same machine and CentOS, but none of the solutions (-p, -X 12) > seem > >> to > >>> work at all and there is no "it works!!!!!" message. > >>> > >>> Is there anyway I can get DMA working or will I have to wait for > >> CentOS > >>> 5? Will any of the "unsupported" kernels work? (I would try > >> Ubuntu's > >>> kernel on CentOS, as I am successfuly using that distribution, > but > >> it > >>> is a bit stupid not to use SELinux and it probably wouldn't work > >>> either). > >> I don't think you can use hdparm on SATA disks? > >> > >> I know some BIOS's allow SATA disks to look like IDE 'legacy' > drives > >> (/dev/hdX) - if this is the case, then the OS may be using the > >> generic > >> IDE driver and it might not support DMA. > >> > >> If this is what you are seeing, then you might want to turn off > the > >> legacy or compatible mode in the BIOS and use the drives via > /dev/sdX > >> ... > > > > I think this is the case, but there's no way to change the settings > in > > the BIOS (that's dell for you). Any way to force the system to use > SATA > > instead of P-ATA? > > > > Thanks > > > > Gabriel > > > >> James Pearson > >> _______________________________________________ > >> CentOS mailing list > >> CentOS at centos.org > >> http://lists.centos.org/mailman/listinfo/centos > >> > > > > > > Send instant messages to your online friends > http://uk.messenger.yahoo.com > > _______________________________________________ > > CentOS mailing list > > CentOS at centos.org > > http://lists.centos.org/mailman/listinfo/centos > > > > > > -- > My "Foundation" verse: > Isa 54:17 No weapon that is formed against thee shall prosper; and > every tongue that shall rise against thee in judgment thou shalt > condemn. This is the heritage of the servants of the LORD, and their > righteousness is of me, saith the LORD. > > -- carpe ductum -- "Grab the tape" > CDTT (Certified Duct Tape Technician) > > Linux user #322099 > Machines: > 206822 > 256638 > 276825 > http://counter.li.org/ > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > Send instant messages to your online friends http://uk.messenger.yahoo.com