Ref: 17320003
Title: Fault Tolerant Disk Mirroring on 3S/400- and 3S/500-Series Servers
Date: 1/3/90

Copyright 3Com Corporation, 1991.  All rights reserved.

Due to a problem with the 3BIO.COM file, a 3S/400- or 3S/500-series
server may not complete the boot process when attempting to boot
with 3+ 1.5.1 and Disk Mirroring installed.

To work around the problem, replace the 3BIO.COM file (located in
the root directory of the server) with an earlier version of the
same file from a 3+ 1.3.1 or 1.5 System Software #1 diskette.

Note:  Versions of 3BIO.COM previous to 1.5.1 do not support the
AppleTalk port.

