>>> can find no problem with either drive. I disable dma as a temporary
>>> solution, but I think it is not a drive fault in my case. Do back
>>>up :)
>>>
>> How did you go about disabling dma?
>You only want to do that as a last resort, it makes your disk IO very
>slow.
>You would change it using hdparm ... the option would be:
>hdparm -d0
>
>You can make it happen every reboot by editing the file:
>
>/etc/sysconfig/harddisks
>
>set:
>
>USE_DMA=0
>
>and remove the # in front of it.
>
>AGAIN ... only if absolutely necessary, because it greatly slows down
>disk
>I/O.
I used ide=nodma as a kernel option in grub
I don't generally do much at the moment that requires high I/O, though I
would like to fix this. I will try changing cables.
Without dma:
# hdparm -Tt /dev/hda
/dev/hda:
Timing cached reads: 700 MB in 2.01 seconds = 348.48 MB/sec
Timing buffered disk reads: 12 MB in 3.69 seconds = 3.25 MB/sec
With dma:
# hdparm -Tt /dev/hda
/dev/hda:
Timing cached reads: 688 MB in 2.01 seconds = 342.34 MB/sec
Timing buffered disk reads: 28 MB in 3.09 seconds = 9.05 MB/sec
