OT 2nd posting pci ata card ??

Dave S ubuntu at pusspaws.net
Sat Apr 1 23:21:57 UTC 2006


On Saturday 01 April 2006 21:15, Dave S wrote:
> On Saturday 01 April 2006 20:55, Antony Gelberg wrote:
> > Dave S wrote:
> > > On Saturday 01 April 2006 20:28, Antony Gelberg wrote:
> > >>Dave S wrote:
> > >>>Hi all,
> > >>>
> > >>>This is a second posting because I could really do with some advice. I
> > >>>have a raid HDD on hda and hdc, works a treat.
> > >>>
> > >>>I have a DVDRW on hdb, it works but cripples my system when I use it.
> > >>> I need a workaround.
> > >>
> > >>Is DMA on for that drive?  If not, turn it on.  man hdparm.  It may
> > >> well make a difference.  There's so much conflicting information about
> > >> this, and most people who comment have no idea about how IDE or DMA
> > >> work (me included).
> > >
> > > Yep DMA is on, and the drives fly. i am happy with the RAID performance
> > > it is faster than a single drive (though not massively so)  but when i
> > > use hdb it all but locks up my machine.
> >
> > I meant for hdb.
>
> Opps sorry ... I enabled DMA on hdb and got some hda seek errors in syslog,
> some failing to boot due to unable to module problems and fsck failure
> (gulp!) so I turned off DMA for hdb and the system became stable again
>
> Dave

Yep I know its odd and should not happen, but there is obviously a conflict 
here. Another reason the separate hda & hdb

Dave




More information about the ubuntu-users mailing list