HP Cisco MDS 9222i Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Rel - Page 33
Downgrading the SSI Image on Your SSM
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Downgrading Your Cisco MDS SAN-OS Software Image Send documentation comments to [email protected] Although the switch indicates that the bootflash check takes 30 minutes, it typically completes in just a few seconds. Once the bootflash check is complete on both the active and the standby supervisors, proceed with the downgrade process. Note The system health check bootflash command is available starting in NX-OS 4.1(1b). Downgrading the SSI Image on Your SSM Use the following guidelines when downgrading your SSI image on your SSM: • On a system with at least one SSM installed, the install all command might fail on an SSM when you downgrade from Cisco NX-OS Release 4.1 to any SAN-OS 2.x release earlier than SAN-OS Release 2.1(2e). Power down the SSM and perform the downgrade. Bring up the SSM with the new bootvar set to the 2.x SSI image. • Downgrade 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 SAN-OS Release Compatibility Matrix for Storage Service Interface Images. • SSM intelligent services traffic switching on SSM ports is disrupted on upgrades or downgrades. • Fibre Channel switching traffic on SSM ports is not disrupted under the following conditions: - All SSM applications are disabled. Use the show ssm provisioning command to determine if any applications are provisioned on the SSM. Use the no ssm enable feature configuration mode command to disable these features. - 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 MDS 9000 Family Interoperability Support Matrix and the "Managing Modules" chapter in the Cisco MDS 9000 Family CLI Configuration Guide, Release 3.x, for information on downgrading your SSM. OL-17675-02 Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Release 4.1(1b) 33