[UCLA-LUG] scsi ids

[chris]

On Tue, 1 Feb 2000, chris wrote:

> On Tue, 1 Feb 2000, Justin Boseant wrote:
> 
> > how many scsi ids can you have on one computer (its got 3 scsi cards in it
>                                        ^^^^^^^^^^
> 
> either 7 or 15 per channelype of scsi the controller implements (not

       .... per channel depending on the type of scsi ...

> counting the lun assigned to the controller).  hmm.  that might be
> different for internal/external... i don't remember. 
> 
> get a copy of the scsi specs that describe cable length and stub spacing
> to figure out how many devices you should realistically put into a scsi
> chain (it will differ depending on what your controller implements and
> what type of devices you're attaching). 
> 
> plus, in terms of performance, it's probably better to spread the disks
> out across the controllers, so that you have the heavily accessed stuff
> all with a different data path.  anyway.  to answer your question,
> probably 15 (the scsi card is the 16th device).  or 7 (with the card as
> device 8). 
> 
> 
> -chris
> 
> > plus an internal...Ultra 30 if you needed to know).  I'm trying to
> > combine all the external disks and put them on this one, but I'm
> > thinking that you only get either 15 or 16.  Which one is it though? 
> > 
> > thanks
> > -justin
> > 
> > 
> > _______________________________________________
> > UCLALUG Linux mailing list - Linux@linux.ucla.edu
> > http://linux.ucla.edu/mailman/listinfo/linux
> > 
> 
> 
> _______________________________________________
> UCLALUG Linux mailing list - Linux@linux.ucla.edu
> http://linux.ucla.edu/mailman/listinfo/linux
>