[LBo] SATA support on Linux

[Emen Zhao]

Hello Group,

I have a box installed with Redhat Ent 4. The kernel is 2.6.9-42.7.ELsmp. It
has a SATA drive (ST3160812AS), and I/O performance is very low. Following
is the output of hdparm testing.

[root at hostname grub]# hdparm -tT /dev/hda

/dev/hda:
 Timing cached reads:   5256 MB in  2.00 seconds = 2627.09 MB/sec
 Timing buffered disk reads:   12 MB in  3.34 seconds =   3.59 MB/sec

I searched on internet and didn't have much helpful info. All I get is that
the kernel supports SATA poorly, but not sure how to improve the
performance.

Anyone can shed some light on this? Any input appreciated.


Thanks,
Emen