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From: rbp@investor.UUCP (Bob Peirce)
Newsgroups: net.micro.68k
Subject: Altos 68000 - Random errors on HD1 - Fix
Message-ID: <235@investor.UUCP>
Date: Wed, 4-Sep-85 19:02:13 EDT
Article-I.D.: investor.235
Posted: Wed Sep  4 19:02:13 1985
Date-Received: Sat, 7-Sep-85 07:02:56 EDT
Distribution: net
Organization: Cookson, Peirce & Co., Pittsburgh, PA
Lines: 17
Keywords: Altos 68000 Quantum


     Lately, as my add on hard disk began to fill up, I  found  I  was
     getting random errors.  It turns out, when I installed the disk a
     bit over  a  year  ago,  the  instructions  said  to  remove  the
     termination resistor on drive 0 and said nothing about a resistor
     on drive 1.  None was installed at the factory.

     These are Quantum 8 in. 40 Mb. drives.  Current thinking is  that
     there  must be a 220 ohm terminating resistor on drive 0 and a 1k
     ohm resistor on drive 1.

     This problem is random and unpredictable, but it seems to have  a
     greater  chance  to  appear  as  the  disk  fills.  My drives are
     running close to 90% of capacity.  Beside the  obvious  HD  error
     messages  to the console, other signs of the problem are messages
     from tar that a file has changed size and  lseek  error  messages
     from the ps command.