[aclug-L] Re: CD-ROM drive speeds

[Jonathan Hall <jonhall@xxxxxxxxxxxx>]

Both my 12x and 24x drives are on the same bus... and both run constantly
(no spinning down) and both are on SCSI.

Guess we gotta keep brainstorming... :-)


On Sun, Dec 19, 1999 at 01:45:10PM -0600, Jeff wrote:
> On Sun, 19 Dec 1999, Jonathan Hall wrote:
> 
> > it is not atypical for a "fast" CD drive to spin up and down
> > constantly when it's being randomly accessed or playing a 1x CD.  
> > But when I'm running something like cdparanoia (or cat /dev/scd1 >
> > /devnull), it pulls the data off the drive as fast as the drive is
> > capable at sustained rates.  There should never even be an
> > opporitunity for the drive to spin down.
> 
> Just a random idea since I don't have the hard data on IDE bus rates
> versus 24x output ... but maybe the CDROM is putting the data out
> faster than the BUS can take it, and so thus is spinning down in
> between?  Even if just long enough to "forget" what track it was on
> (but leave the light on) to where it has to re-seek.
> 
> Brainstorming,
> -jeff
> -- 
>  "Sendmail started out being a sledgehammer used to kill a fly, only to
>   discover that the fly was actually an elephant in the distance."
>                                                           - Eric Allman
> 

--
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