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Article #2196Re: Apple SCSI not compatible with standard SCSI?
From: Jeff Bevis
Date: Sat, 18 Nov 1989 00:41
Date: Sat, 18 Nov 1989 00:41
21 lines
1779 bytes
1779 bytes
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. | +--------------------------------+--------------------------------------------+
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arc1-ca.pugleaf.net!utzoo!mnetor!tmsoft!torsqnt!jarvis.csri.toronto.edu!rutgers!ucsd!ucbvax!EE.ECN.PURDUE.EDU!bevisReferences:
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Path: arc1-ca.pugleaf.net!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