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Conference ssag::ask_ssag

Title:Ask the Storage Architecture Group
Notice:Check out our web page at http://www-starch.shr.dec.com
Moderator:SSAG::TERZAN
Created:Wed Oct 15 1986
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:6756
Total number of notes:25276

6514.0. "pointer for RZ28C pin out listing (both J4 and J2)?" by SMURF::SEAGRAVES (Jim, Digital UNIX Tech. Partners. Eng. Grp.,381-6199) Tue Mar 25 1997 14:41

I've been through this conference and a walk through the
other sources via AltaVista.  What I have not been able
to find is the correct pin out listing for a RZ28C  in the
common brick enclosure.  I want to use the disk without
the plastic enclosure.

All of the RZ28C listings that I have found put the SCSI ID 
pins at one end of the jumper set (J4).  For this disk 
(Seagate Barracuda), that's incorrect.  The SCSI id pins are 
in the middle.
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6514.1HOUNDD::BASSETTBillTue Mar 25 1997 16:1316
    That's because the RZ29B also uses J4 for ID - and in the case of the
    RZ29B the pins are at the end.  J4 is on the "mud flap" near the power
    connector.  [This is our (from an SBB perspective) only narrow drive 
    with this position for the ID connector.]
    
    The RZ28C is equivalent to the RZ28D, which is Seagate's ST32550N (for
    narrow) disk drive.  J4 is at the opposite end of the drive from the 
    power and the SCSI connector.  Pins 7 and 8 are for the 0-1 bit, pins 
    9 and 10 are for 0-2, and pins 11 and 12 are for the 0-4 bit.
    [How do I know this?  I've a copy of the booklet that Seagate ships with 
    the drive.]
    
    I suspect that if you look under RZ28D, you may find an official jumper
    note!
    
    				Bill
6514.2or..SUBSYS::VIDIOT::PATENAUDEAsk your boss for ARRAY's...Wed Mar 26 1997 08:106
Look at my page at http://whatsa.shr.dec.com and follow through to the disk
section. There I have a link to Seagate's install guides in PDF format. Pull the
ST32550N and you have what Bill has in his hand.

roger.
6514.3ok - will doSMURF::SEAGRAVESJim, Digital UNIX Tech. Partners. Eng. Grp.,381-6199Wed Mar 26 1997 08:453

and thanks !