HP Cisco Nexus 5000 Cisco MDS 9000 Family Release Notes for Cisco MDS SAN-OS R - Page 20

Upgrading Your Cisco MDS SAN-OS Software Image Send documentation comments to [email protected] Step 4 Save the running configuration to the startup configuration before the upgrade procedure to ensure that the changes are preserved during and after the upgrade. To save the configuration, enter the following command: switch# copy running-config startup-config Upgrading the SSI Image on Your SSM Use the following guidelines to nondisruptively upgrade the SSI image on your SSM: • Install and configure dual supervisor modules. • SSM intelligent services traffic on SSM ports is disrupted during upgrades. Fibre Channel switching traffic is not disrupted under the following conditions: - Upgrade the SSI boot images on the SSMs on the switch to a release version supported by your Cisco SAN-OS release. Refer to the Cisco MDS NX-OS Release Compatibility Matrix for Storage Service Interface Images. - All SSM applications are disabled. Use the show ssm provisioning command to determine what applications are configured. Use the no ssm enable feature command to disable these applications. - No SSM ports are in auto mode. See the "Reconfiguring SSM Ports Before Upgrading to SAN-OS Release 3.3(3)" section on page 19. - The EPLD version on the SSM is at 0x07 or higher. Use the show version module slot epld command to determine your EPLD version. Refer to the Cisco MDS 9000 Family Release Notes for Cisco MDS 9000 EPLD Images to upgrade your EPLD image. - Refer to the Cisco Data Center Interoperability Support Matrix and the "Managing Modules" chapter in the Cisco MDS 9000 Family CLI Configuration Guide, Release 3.x, for information on upgrading your SSM. Caution Upgrading from Cisco MDS SAN-OS Release 2.1(1b) or earlier to Release 2.1.2 or later can disrupt traffic on any SSM installed on your MDS switch Upgrading a Switch with Insufficient Space for Two Images on the Bootflash To upgrade the SAN-OS image on a Cisco MDS 9000 Family switch requires enough space on the internal CompactFlash (also referred to as bootflash) to accommodate both the old software image and the new software image. As of Cisco MDS SAN-OS Release 3.1(1), on MDS switches with a 256-MB CompactFlash, it is possible in some scenarios that a user might be unable to fit two images on the bootflash. This lack of space on the bootflash might cause the upgrade process to fail because new images are always copied onto the bootflash during an upgrade. The following MDS switches are affected by this issue: • MDS 9216 and MDS 9216i • MDS 9120 and MDS 9140 • MDS 9500 Series switches with a Supervisor 1 module Cisco MDS 9000 Family Release Notes for Cisco MDS SAN-OS Release 3.3(3) 20 OL-14116-11