Re: UDMA Disk Errors Fixed

[Rick Macdonald <Rick_Macdonald@shaw.wave.ca>]

George - with all those things disabled, does the UDMA disk perform
faster than if you just don't use the UDMA in the first place? I'm
assuming that you can choose a UDMA driver or the regular IDE driver?

George Bonser wrote:
> 
> Pretty tired at this point but I got it fixed. It is a combination of BIOS
> and disk parameters.
> 
> Motherboard is Award BIOS with SiS chipset. The section under PCI and
> Onboard IO is set up thusly:
> 
> CPU-PCI Burst Mem Write - Enabled
> CPU-PCI Post Mem Write - Enabled
> Internal PCI/IDE - Both
> IDE Pri Master PIO - Auto
>         Secondary  - Auto
> IDE Sec Master PIO - Auto
>         Secondary  - Auto
> Primary IDE Prefetch - DISABLED
> Secondary IDE Prefetch - DISABLED
> IDE Burst Mode - Enabled
> IDE Post Write - Disabled
> IDE HDD BLock Mode - Enabled
> 
> Then I fiddled with hdparms. The important thing on the  UDMA drive
> appears to be disabling the internal prefetch with -A 0 and disaling
> multiseek with -m 0. My flags look like this:
> 
> hdparm -A 0 -m 0 -c 3 -u 1 -a 4 -k 1 /dev/hdc
> 
> End of errors.

-- 
...RickM...