Re: [CentOS] Extremely slow disk transfers with SATA disks

Vanja Hrustic wrote:

I have installed CentOS 4.2, recently, on new computer.

Everything seemed to work fine.

However, we've found out that disk transfers are incredibly slow, and I just can't figure out what to do in order to fix it.

Computer is now running CentOS 4.3 (updated it 1 hour ago), and same thing is still present. I hoped kernel upgrade might fix it, but it didn't.

I am having similar issues with an Intel 845 based board. It sounds like your disks are running in PIO rather than in UDMA mode.

Have you tried:

hdparm -d1 /dev/sdX

substituting the actual device names for each drive?

I was unable to remotely fix mine, but plan to visit the machine soon and fiddle with bios settings to see if I can get the drives out of PIO mode.

Cheers,