🚀 go-pugleaf

It's 16 Feb 96  02:02,
We'll return to kevin@tplex.com.au and All's
discussion of Juke boxes (CD)

 > su> - about how quickly does it move from one
 > su> CD to the next

 >I'd have to time it (which I can do from the DOS machine.  Hang on. :-)

 >Seems to be about 4-5 seconds to change CDs

 ke> After mount the cdroms a cd to the directory will switch the crom in
 ke> the drive.

That's right. :-)

 >I've got the CD7 to run well here under Linux.  Seems to be quite good.
 >However, some drives like the CD7 need to have the boot parameter
 >max_scsi_luns=7, since each CD uses a separate lun.  Without this
 >parameter (either in /etc/lilo.conf or at the boot: prompt), you'll only
 >be able to access CD no 1, regardless of which CD you attempt to access.
 ke> See above

Well, since the system is still in "early development" here, I'm not
quite ready to recompile the kernal, but I do intend to eventually.  :-)

 >According to literature I have, there may be problems when 2 users
 >attempt to access a CD at the same time, but I haven't investigated this
 >as yet...
 ke> I havn't tried to do this but as linux supports more than one person
 ke> it should work ok.. first in best dressed

Where there might be a problem is:  user a and user b decide (as per
Murphy's Law!) to access files from different CD's at the same time
(quite possible, especially where shareware archive CD's are mounted for
public access).

Depending on the design, two scenarios are possible.

1.  a gets in first, reads his file, then b gets the drive.  This is
faster and more efficient.

2.  the CD is shared between a and b, so that the drive reads a few
blocks from a's file, then reads a few from b's, then back to a, etc,
etc.  This would take forever, and probably leave you in the market for
a new CD drive pretty soon! :-)

... REAL programmers write self-modifying code.
--
| Fidonet:  Tony Langdon 3:632/367.2
| Internet: tlang@freeway.DIALix.oz.au