OT 2nd posting pci ata card ??

Dave S ubuntu at pusspaws.net
Sun Apr 2 00:11:41 UTC 2006


On Sunday 02 April 2006 00:55, Patrick Siglin wrote:
> Dave S wrote:
> > 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
>
> It still sounds like both the dvd and one of the hd's are on the same
> ide interface.

Yep sure are hda HDD and hdb DVDRW are on one ide interface, hdc HDD is on the 
second.

Having read peoples input I am going to buy a ata/133 pci card and move my 
hda, hdc to the cards ide busses leaving my hdb DVDRW alone on the 
motherboard bus.

I have spent a lot of time setting up my system just as I want it, samba, 
apps, furry dice :) Has anyone any idea how easy / hard it would be to move a 
software raid from hda,hdc to hde,hdg (I assume that's where they will pop 
up?)

Cheers (In uncharted territory)

Dave




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