hdparm -X69 -m16 -d1 -c1 -u1 /dev/hda /dev/hde /dev/hdf
Resulting in these custom settings for each drive (as shown here for hda):
/dev/hda:
multcount = 16 (on)
IO_support = 1 (32-bit)
unmaskirq = 1 (on)
using_dma = 1 (on)
keepsettings = 0 (off)
readonly = 0 (off)
readahead = 256 (on)
geometry = 38913/255/63, sectors = 625142448, start = 0
hdparm -Tt /dev/hda returns the following with both the default Ubuntu settings and with barely any noticeable difference with my custom settings for each of the three drives:
/dev/hda:
Timing cached reads: 252 MB in 2.01 seconds = 125.24 MB/sec
Timing buffered disk reads: 104 MB in 3.01 seconds = 34.57 MB/sec
Based on documents I have read I expected to see a substantial increase in performance over the default settings. I think I will find that it probably has more to do with the limitations of my GA-6VEML mainboard and the Promise Ultra100 TX2 card then the drives...
Tags: hdparm Ubuntu Server WD3200JB
1 comment:
hdparm to no avail
James
This really doesn't suprise me with Ubuntu. I have seen very little if any increases in performance. Ubuntu does a good job of selecting the best performance parameters for your hardware. This is a opposed to Suse which seems to take a bit more "tweaking" to bring it up to speed.
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