Return to BSD News archive
Newsgroups: comp.os.386bsd.questions Path: sserve!newshost.anu.edu.au!munnari.oz.au!spool.mu.edu!howland.reston.ans.net!ux1.cso.uiuc.edu!sdd.hp.com!saimiri.primate.wisc.edu!usenet.coe.montana.edu!nate From: nate@cs.montana.edu (Nate Williams) Subject: Re: Elusive SCSI problems (Adaptec 1542C) <snarl!> Message-ID: <1993May12.224257.21010@coe.montana.edu> Keywords: Adaptec 1542C, Quantum, SCSI, 386bsd Sender: usenet@coe.montana.edu (USENET News System) Organization: CS References: <1993May12.023959.20121@sophia.smith.edu> <1993May12.205857.8857@fcom.cc.utah.edu> Date: Wed, 12 May 1993 22:42:57 GMT Lines: 32 In article <1993May12.205857.8857@fcom.cc.utah.edu> terry@cs.weber.edu (A Wizard of Earth C) writes: >In article <1993May12.023959.20121@sophia.smith.edu> jfieber@sophia.smith.edu (J Fieber) writes: >> It does not always fail. For example, several hours last night every >> thing worked without a single error. However, the *only* pattern >> I have been able to detect is that it works consistantly good or >> bad in any one session (i.e. it will work okay but if I reboot, >> then it will not work at all until I reboot again at which point >> who knows what it will do?!). It seems as though something that >> happens at boot time determines the reliability of the SCSI system. >[ ... ] >[ BUS ON TIMES ] >> Would some kernel hacker tell me how to adjust this properly?) >[ ... ] >>ADAPTEC CONFIG: > >This is where you diddle tyhe bus-on times. Unless you have recompiled >the kernel, you will have a hard time reducing bus-on time. I believe >that someone else had this problem (Nate?) and it's now working for him >with about a 50% reduction in on time. Actually, it's much better than that. I reduced my bus-on time via a hardware jumper, and I have never seen a problem with it since, but Rod did once. This means I have seen one problem in over 6 months. Nate -- osynw@terra.oscs.montana.edu | Still trying to find a good reason for nate@cs.montana.edu | these 'computer' things. Personally, work #: (406) 994-4836 | I don't think they'll catch on - home #: (406) 586-0579 | Don Hammerstrom