Hi there,

I have Dell Optipex GX280. Redhat enterprise 4 can recognize the SATA hard drive. However, the speed for the hard drive is abnormally slow.

hdparm -Tt /dev/sda1

Timing cached reads: 4316 MB in 2.00 seconds = 2158.33 MB/sec
HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate ioctl for device
Timing buffered disk reads: 26 MB in 3.33 seconds = 7.80 MB/sec
HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate ioctl for device

Also, I can't active the dma mode.

hdparm -d1 /dev/sda1

/dev/sda1:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Inappropriate ioctl for device

Does anyone know how to solve this problem?

Thanks,

chsue

I'm unable to determine the chipset of the GX280.
This might help:
http://linux.yyz.us/sata/sata-status.html

Hi uberNUT69

Thank you for your help.

The chipset is intel 915. The redhat enterprise 4 has that driver. I have also installed SUSE 9.3, which can recognize the SATA. But the speed for the hard drive is still very slow.

The only thing I can suggest at this point is to upgrade to the latest kernel.