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From: guineau@star.enet.dec.com (W. John Guineau)
Newsgroups: comp.periphs.scsi
Subject: WARM SWAP
Message-ID: <22249@shlump.nac.dec.com>
Date: 22 Apr 91 15:08:49 GMT
Sender: newsdaemon@shlump.nac.dec.com
Organization: Digital Equipment Corporation
Lines: 23



Open question with no personal opinions:

Is anyone using SCSI devices in a WARM SWAP mode? 

By swap, I mean physically removing a device from the bus and 
replacing it with another.

Some definitions for reference:

COLD SWAP: everything powed off, peripherals swapped, everything powered up.
WARM SWAP: everything powered on, NO activity on bus, peripherals swapped.
HOT  SWAP: everything powered on, activity on bus, peripherals swapped

What are the risks associated with this?

Electrical experts? SCSI experts? ANSI?

--                			
W. John Guineau                         grep meaning life | more
VMS Development
Digital Equipment Corporation		guineau@star.enet.dec.com