[Search for users] [Overall Top Noters] [List of all Conferences] [Download this site]

Conference hydra::amiga_v1

Title:AMIGA NOTES
Notice:Join us in the *NEW* conference - HYDRA::AMIGA_V2
Moderator:HYDRA::MOORE
Created:Sat Apr 26 1986
Last Modified:Wed Feb 05 1992
Last Successful Update:Fri Jun 06 1997
Number of topics:5378
Total number of notes:38326

4635.0. "A3000 RZ23 spinup time" by TUNIX::JUERGEN () Wed Mar 27 1991 08:58

hi boys,

more and more 2nd Drive Problems on a A3000,
i've got an A3000 with a Quantoum lps52 and an additional added DEC Rz23.
everything is fine conifured. The first Drive is the Rz23 and the LPS52 the 
terminating Drive. When i now do a Cold-Boot the RZ23 isn't seen. After every
Warm-Boot the Drive is seen. The Drive is patched correctly for Spin-Up on
Power-Up. Reselection ist disabled. i guess the RZ23 Drive is not fast enough
for the Cold-Boot, so it is only seen after the following Warm-Boot. 

Do i feel right ????. If so, is there any solution outside.


					thanks in advance


					Juergen
T.RTitleUserPersonal
Name		DateLines
4635.1ELWOOD::PETERSWed Mar 27 1991 09:238
    
    	I'm having the same problem. What I did do was change the ID on the
    drives. The SCSI controller seems to pole from ID 6 down to ID 0.
    BY putting the Quantum at ID 6 and the RZ23 at ID 0 there seems to
    be enough time for the RZ23 to get going.
    
    		Steve Peters
4635.2genius in second natureTUNIX::JUERGENWed Mar 27 1991 10:159
    hi Steve,
    
    thanks for your fast response. i will try it this evening. 
    
    
    					    thanks
    
    
    						Juergen
4635.3MSDOS Partition on RZ23TUNIX::JUERGENWed Mar 27 1991 11:0413
    hi steve,
    
    
    do you think a change from SCSI ID 2 to ID 0 will give the Drive enough 
    time.  Do you now someone who has installed an A2886(AT-Board) and
    access Files from a MSDOS Partition on a SCSI Drive . 
    
    
    
    					         many thanks 
    
    
    						Juergen
4635.4BARD::mcafeeSteve McAfeeWed Mar 27 1991 16:104
Isn't there supposed to be support in 2.0 for a long wait?  Supposedly
you need to set one of the extra bits in the battery backed up memory...

-steve
4635.5scsiprefs.lzhGIDDAY::MORANI'm not bad-I'm just drawn that way!Thu Mar 28 1991 02:465
    From memory scsiprefs.lzh located on TAPE:: will change the long wait
    bit for you.
    
    Shaun
4635.6genius in second natureTUNIX::JUERGENThu Mar 28 1991 08:4511
    thanks for all the info,
    
    
    but i couldn't find scsiprefs.lzh on tape""::amiga:[000000...]. if
    anybody has it available !!! please copy it to 50840"":: (Decnet default)
    
    
    
    						thanks in advance
    
    						Juergen
4635.7Hardware v. SoftwareTLE::RMEYERSRandy MeyersThu Mar 28 1991 16:1010
Re: .4

>Isn't there supposed to be support in 2.0 for a long wait?

My understanding is that the support isn't in 2.0, it is in the Amiga 3000
hardware (that is why the reference to "battery backed up memory").

I believe that the Commodore 2091 disk controller has a jumper that can
put it into long wait mode.  Other manufactures may have similar hacks (I
mean that in a goood waay).
4635.8Software that is part of the hardwareTLE::RMEYERSRandy MeyersThu Mar 28 1991 16:179
Re: .7

To expand on .7, Kickstart itself doesn't do the probe to discover if
the disks are out there.  Instead, part of the autoconfig process is to
call code located in the disk controller's ROM.  That code does the check.
Thus, the behavior is determined by whatever program the manufacturer
of the controller put in the controller ROM.  In the 3000, the controller
ROM checks battery backed up memory for parameters.  On the 2091, it
checks to see if a jumper on the board is open or closed.
4635.9Couldn't resist...TLE::TLET8::ASHFORTHThe Lord is my lightFri Mar 29 1991 08:1412
Re .4:

>Isn't there supposed to be support in 2.0 for a long wait? 


Shouldn't that be:

"Isn't there supposed to be a long wait for support in 2.0?"



Bob
4635.10scsiprefs found at last!!GIDDAY::MORANThu Jun 06 1991 10:1410
    I could'nt find SCSIPREFS.LZH on tape myself so I've uploaded it to
    TAPE::AMIGA:[UPLOAD].
    
    Sorry if this is the second copy.
    
    Shaun.
    
    Does anyone out there have a spare RZ23 out there that there willing to
    trade????