On Sat, 7 Aug 1999, Mark Hahn wrote:
> > i have here 4 * 25GB ibm disks
> > and an asus p2b-d board with 2* p2-450
> > now i read i should only use master devices
> huh? board has a piix4 controller, which is a busmaster device.
> or do you mean that for concurrent access, you should have just
> one defice active on each chain?
i mean master devices (and not use slave) like 1 disk on a channel
>
> > i can buy the promise ide/66 and Abit HotRod66(HPT366 chipset)
> udma66 is not useful over udma33. however, both are supported;
> I suspect the promise works better.
both are not really supported
i can't find patches for 2.3.x for raid
and they are both supported in 2.3.12 and/or 2.3.13pre
>
> > (I thought about buying 2 extra controllers so i could get the 4 disks all
> > on full speed)
>
> one extra dual channel controller.
>
> > now i have the 4 disks on the onboard controller and get real slow speed :
> > (hdparm -t on /dev/md0 gives 4.3mb/sec :( )
>
> hdparm -d1? udma enabled in bios? how do the disks perform without md?
without i get about 16mb/sec
