On Saturday 18 November 2000 10:13 pm, pablito wrote:
> Interesting.  "info hdparm" is a terminal command?

    yes.   (su to root) 'hdparm -i /dev/hd*' will read the information 
from your harddrive's (HDD) firmware (bios).  Much of this information 
is useful in guessing at which hdparm options will best optimize your 
HDD.
     Once you've determined the best options by running 'hdparm -tT 
/dev/hd*', that hdparm line can be added to the end of your 
/etc/rc.d/rc.local  file to optimize your HDD on every boot.
EG (I have this line at the tail of rc.local for my old ata/33 linux 
HDD),       hdparm -m16 -c1 -u1 -d1 -k1 -a128 /dev/hdb 

    In marginal hardware situations, choosing "hardrive optimization" 
during LM install can result in boot failure or data corruption, which 
is why that install option comes with a warning.  BUT, the same is true 
for optimizing your drives 'manually' with hdparm from the CL, so 
proceed with caution.  Most of the time if you have a decent 
motherboard and aren't (mis)using ata/66 there'll be no problem.
-- 
Tom Brinkman       [EMAIL PROTECTED]     Galveston Bay
>
>
> ----- Original Message -----
> From: "Tom Brinkman" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Saturday, November 18, 2000 6:10 PM
> Subject: Re: [newbie] Re: disk optimization option
>
> : On Saturday 18 November 2000 06:12 pm, pablito wrote:
> : > installation - disk optimization check box -- what does that do? 
> : > Is there something like a disk defragmenter for Linux,
> :
> :    NO.  ext2 and Reiser file systems don't require defraging like
> : DOS does.  The optimization check box you refer to is to set your
> : harddrive parameters.   If you're not sure you're HDD's are
> : capable, don't choose this during LM install.  After installation
> : refer to 'info hdparm' to see if you can increase HDD thru put.
> : --
> : Tom Brinkman       [EMAIL PROTECTED]     Galveston Bay


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