Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!dali.cs.montana.edu!caen!sol.ctr.columbia.edu!emory!utkcs2!ornl.gov!de5 From: de5@ornl.gov (Dave Sill) Newsgroups: comp.unix.admin Subject: Re: Unhooking scsi devices while machine is running Message-ID: <1991May24.162851.11662@cs.utk.edu> Date: 24 May 91 16:28:51 GMT References: <1991May24.143831.10687@csl.dl.nec.com> Sender: usenet@cs.utk.edu (USENET News Poster) Reply-To: Dave Sill Organization: Oak Ridge National Laboratory Lines: 29 In article <1991May24.143831.10687@csl.dl.nec.com>, harrison@csl.dl.nec.com (Mark Harrison) writes: > >1. Is there *any* significance to the order of daisy chaining? No. >2. Is it safe to plug and unplug the tape drive while the system > is up? No. >3. (this is the point of the whole posting) Will I screw things > up if I simply plug and unplug the tape drive into the disk > drive while the system is running? Maybe, maybe not. You certainly *could* mess things up. >4. What FM should I be reading to know about this stuff? I don't know, but I wish I'd read a copy of it before I took the course on SCSI fiddling from the School of Hard Knocks. In my experience, the only safe way to reconfigure SCSI devices is with the power off on *all* devices, including the system. -- Dave Sill (de5@ornl.gov) It will be a great day when our schools have Martin Marietta Energy Systems all the money they need and the Air Force Workstation Support has to hold a bake sale to buy a new bomber.