Hi RaghuNath

Could you post relevant portion of /etc/rc.d/rc.local? There may be a problem of 
executing
commands in the file itself.

Check file permissions. Also try redirecting the output of hdparm to a file. Check 
whether
the file get generated with proper contents.

Bye
Shridhar

P.S. You hdd is enviable fast. That rate is above 55MB/s where as my 10.2GB quantum 
does not
go beyond 32MB/12MBps.. Anyway IBM drive of my company machine does give me 113MBps... 
It's
blazing...

RaghuNath L wrote:

> Shridhar,
>
> That's what i have done /sbin/hdparm
> but after the reboot the hdparm shows i/o as just 16 not 32 and rc.local is not 
>excuteing
> hdparm (does it require a sleep to be introduced ) or only after root login will it 
>get
> excuted?
> I enabled dma it gives cache read 128 mb in 2.2 sec (i use segate old harddrive) .
>


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