HDD tuning
HDD is too slow...
vi /etc/sysconfig/harddisks
Modify this file is the simplest way to tune the hdd (RedHat).
/sbin/hdparm /dev/hda
Reports general HDD informations e.g. "using_dma".
/sbin/hdparm -i /dev/hda
Reports detailed HDD informations.
/sbin/hdparm -i /dev/hda ¦ grep ult
/sbin/hdparm -m?? /dev/hda
?? is the number of MaxMultiSect, which was reported with the previous command.
hdparm -i /dev/had ¦ grep dma
DMA must be supported by the kernel (ATA/IDE.. section in "make menuconfig") Check which dma-mode supports your hdd in HDD Info and look where the astrisk by dma is.
/sbin/hdparm -d1 /dev/hda
To enable DMA.
/sbin/hdparm -d1 -X34 /dev/hda
To enable multiword DMA mode 2.
/sbin/hdparm -d1 -X66 /dev/hda
To enable Ultra DMA mode 2.
33 multiword DMA mode1
68 UDMA4
69 UDMA5
/sbin/hdparm -c1 /dev/hda
To enable 32-Bit transfer over PCI.
/sbin/hdparm -k1 /dev/had
Keep settings across an IDE reset.
Enter this lines into /sbin/init.d/boot.local (SuSE) or /etc/rc.d/rc.local RedHat).
/sbin/hdparm -Tt /dev/hda
Measure the HDD throughput.
Dieser Eintrag wurde am 15.07.2004 erstellt und zuletzt am 09.11.2006 bearbeitet.
Direkter Link zu dieser Seite: http://www.gtkdb.de/index_7_38.html
[ Zur Startseite ] [ Zur Kategorie ]
© 2004-2021 by Georg Kainzbauer