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Legacy Forums => Experienced User Forum => Topic started by: Damien Ryan on August 09, 2003, 08:26:34 AM

Title: DMA not on by default ? maybe use this command
Post by: Damien Ryan on August 09, 2003, 08:26:34 AM
Hi All,

I set up an sme 5.5 box on a p2 400 with software raid 40 gigabyte harddrives
recently. It was very slow until I told it to use DMA with the following command

/sbin/e-smith/config setprop hdparm status enabled

Has anyone else had this experience ?
Should I be adding this command to my todo list when setting up
servers ? Harddrives where fujitsu.

Damien
Title: Re: DMA not on by default ? maybe use this command
Post by: Stan Coleman on August 09, 2003, 08:36:25 AM
YUP.
Title: look for hdparm article at....
Post by: Hardijs on August 13, 2003, 11:59:08 PM
try google on hdparm
there was quite good article at O.Reily's (also search here)

hdparm -tT /dev/hd[a/b] to see animprovements
hdparm /dev/hd

usually hdparm needs just a bit more tweaking for it to work reliably....