Path: utzoo!mnetor!tmsoft!torsqnt!jarvis.csri.toronto.edu!rutgers!ucsd!ucbvax!EE.ECN.PURDUE.EDU!bevis
From: bevis@EE.ECN.PURDUE.EDU (Jeff Bevis)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Apple SCSI not compatible with standard SCSI?
Message-ID: <8911180041.AA15338@en.ecn.purdue.edu>
Date: 18 Nov 89 00:41:47 GMT
References: <8608@cbmvax.UUCP>
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: Purdue University Engineering Computer Network
Lines: 21

In article <8608@cbmvax.UUCP>, steveb@cbmvax.UUCP (Steve Beats) writes:
>In article <1410034@hpcvca.CV.HP.COM> charles@hpcvca.CV.HP.COM (Charles Brown) writes:
>up to a timeout limit.  However, SCSI drivers have to check 7 distinct	
					       ^^^^^^^^^^^^^^^^^^^^^^^^
>SCSI bus addresses to see if drives are hooked up (there is a way under
 ^^^^^^^^^^^^^^^^^^
>the new RDB scheme to shortcut this check, but that`s not important here).
>If the driver were to assume that all drives took at least 5 seconds to
>spin up, that would be 7*5 = 35 seconds of dead time on a cold boot.  Since
		        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
That must explain it.  I've got a supra 4x4 now, and I boot off a floppy.
But when it's mounting, supramount stops and vegetates, doing nothing, 
eating almost no cputime for about 28 seconds.  Then it boots quite rapidly.
Oh, this is so frustrating.  Does anybody out there know how I can inform
supramount to ONLY check for scsi device 0?  (I'd call Supra on Monday...)


+--------------------------------+--------------------------------------------+
| Jeff Bevis 		         | "But I don't like spam!"		      |
| bevis@en.ecn.purdue.edu	 | 	     Give me Amiga or nothing at all. |
+--------------------------------+--------------------------------------------+