if i do that i get this...<br><br>[root@Mitchell_mc myth]# /sbin/hdparm -d1 /dev/sda<br><br>/dev/sda:<br> setting using_dma to 1 (on)<br> HDIO_SET_DMA failed: Inappropriate ioctl for device<br><br><br><div><span class="gmail_quote">
On 3/23/07, <b class="gmail_sendername">Indulis Bernsteins</b> <<a href="mailto:indulis.b@au1.ibm.com">indulis.b@au1.ibm.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br><tt><font size="2">> Hi,<span class="q"><br>
><br>
> I am trying to enable DMA on my HD Myth box to increase performance.
It<br>
> works fine not but I have read so much about how DMA increases performance<br>
> so i figured I would give it a shot...<br>
><br>
> Here is my system config<br>
> Chipset - SiS<br>
> Western Digital HDD 500GB SATA<br>
><br></span><span class="q">
> Heres some term output...<br>
><br>
> [root@Mitchell_mc myth]# /sbin/hdparm /dev/sda<br>
><br>
> /dev/sda:<br>
> IO_support = 0 (default 16-bit)<br>
> readonly = 0 (off)<br>
> readahead = 256 (on)<br>
> geometry = 60801/255/63, sectors = 976773168,
start = 0<br>
> (I take it that DMA is not ON)<br>
><br>
> Trying to enable it....<br>
> [root@Mitchell_mc myth]# echo "/sbin/hdparm -d1 /dev/hda"
>><br>
> /etc/rc.d/rc.local</span></font></tt>
<br>
<br><font face="sans-serif" size="2">Yes you are right that when you did
the "echo..." command the way you did, you need to reboot. This
is 'cos you added a line to the end of the file /etc/rc.d/rc.local (that
is what >> does). The commands in this file are executed during
system boot. </font>
<br>
<br><font face="sans-serif" size="2">Now if you just type the command</font>
<span class="q"><br><tt><font size="2"> /sbin/hdparm
-d1 /dev/hda</font></tt>
<br></span><font face="sans-serif" size="2"> Then it will execute
right away</font>
<br>
<br><font face="sans-serif" size="2">See ya!</font>
<br><span class="sg">
<br><font face="sans-serif" size="2">Indulis</font></span><br>_______________________________________________<br>mythtv-users mailing list<br><a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:mythtv-users@mythtv.org">
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</a><br><br></blockquote></div><br>