On Sunday 30 January 2005 01:10, BandiPat wrote:
Sorry, I haven't been following this thread closely, but saw something that threw up a red flag. I thought I would at least suggest it to you at this point. I notice that you have IO_support = 1 (32-bit).
First question/suggestion is do you have an ATA100/133 cable connected to the drive? That's the one with 80 wires, but still 40 pins. Second, have you tried changing that bit to 0 (16-bit)? I think you might see a difference in your readings. Test with hdparm -T /dev/hdx & hdparm -t /dev/hdx, as that will give you both cache read & drive read speeds. I know you can set the IO_support setting with hdparm -c0 (16-bit) or -c1 (32-bit). Also, in checking my settings, I notice that unmaskirq is 0 (off) as well. Sorry, don't remember the option to change that, just do "hdparm --help" for all your options.
I've played around with those already (tried again just now though, just to make sure), but none of those appear to have much results on the speed. The unmaskirq 1 seems to help a little when there's a lot of internet traffic going on, but otherwise there's little to no effect. Also, all the drives have the same settings, yet it's only this one partition on this one drive that has these speed problems. There's no errors from filesystem check, badsectors, nor from smartctl. Thanx for the suggestions though, they could have held the answer. Regards, Pieter Hulshoff