S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
Refer to the Cisco MDS SAN-OS Release Notes to verify if the EPLD has changed for the Cisco SAN-OS
image version being used.
EPLDs can be upgraded or downgraded using CLI commands. When EPLDs are being upgraded or
downgraded, the following guidelines and observations apply:
Do not insert or remove any modules while an EPLD upgrade or downgrade is in progress.
Upgrading EPLD Images
Log into the switch through the console port, an SSH session, or a Telnet session.
Issue the show version command to verify the Cisco MDS SAN-OS release running on the MDS switch.
switch# show version
Cisco Storage Area Networking Operating System (SAN-OS) Software
TAC support: http://www.cisco.com/tac
Copyright (c) 2002-2006, Cisco Systems, Inc. All rights reserved.
The copyrights to certain works contained herein are owned by
other third parties and are used and distributed under license.
Some parts of this software may be covered under the GNU Public
License or the GNU Lesser General Public License. A copy of
each such license is available at
kickstart: version 2.1(2) [build 2.1(2.47)] [gdb]
If necessary, upgrade the Cisco MDS SAN-OS software running on your switch (see the
Upgrade Methods" section on page
Issue the dir bootflash: or dir slot0: command to verify that the EPLD software image file
corresponding to your Cisco MDS SAN-OS release is present on the active supervisor module. For
example, if your switch is running Cisco MDS SAN-OS Release 2.1(2), you must have
m9000-epld-2.1.2.img in bootflash: or slot0: on the active supervisor module.
switch# dir bootflash:
12288 Jan 01 00:01:07 1980 lost+found/
OL-16184-01, Cisco MDS SAN-OS Release 3.x
You can individually update each module that is online. The EPLD update is only disruptive to the
module being upgraded.
If you interrupt an upgrade, the module must be upgraded again.
The upgrade or downgrade can only be executed from the active supervisor module. While the active
supervisor module cannot be updated, you can update the other modules individually.
In Cisco MDS 9100 Series fabric switches, be sure to specify one (1) as the module number.
Cisco MDS 9200 Series switches do not support EPLD upgrades.
The upgrade and downgrade processes disrupt traffic.
version unavailable [last: 1.0(0.267c)]
version 2.1(2) [build 2.1(2.47)] [gdb]
Cisco MDS 9000 Family CLI Configuration Guide