HP Cisco MDS 9120 Cisco MDS 9000 Family Release Notes for Cisco MDS SAN-OS Rel - Page 11

Upgrading Your Cisco MDS SAN-OS Software Image Send documentation comments to [email protected] General Upgrading Guidelines Use the following guidelines when upgrading to Cisco MDS SAN-OS Release 3.1(2a): • Install and configure dual supervisor modules. • Issue the show install all impact upgrade-image CLI command to determine if your upgrade will be nondisruptive. • Follow the recommended guidelines for upgrading a Cisco MDS 9124 Switch as described in "Upgrading a Cisco MDS 9124 Switch" section on page 17. • Be aware that some features impact whether an upgrade is disruptive or nondisruptive: - Fibre Channel Ports: Traffic on Fibre Channel ports can be nondisruptively upgraded. See Table 4 for the nondisruptive upgrade path for all SAN-OS releases. - SSM: Intelligent services traffic on the SSM, such as SANTap, NASB, and FC write acceleration, is disrupted during an upgrade. SSM Fibre Channel traffic is not. - Gigabit Ethernet Ports: Traffic on Gigabit Ethernet ports is disrupted during an upgrade or downgrade. This includes IPS modules and the Gigabit Ethernet ports on the MPS-14/2 module. Those nodes that are members of VSANs traversing an FCIP ISL are impacted, and a fabric reconfiguration occurs. iSCSI initiators connected to the Gigabit Ethernet ports lose connectivity to iSCSI targets while the upgrade is in progress. - IVR: With IVR enabled, you must follow additional steps if you are upgrading from Cisco SAN-OS Release 2.1.(1a), 2.1(1b), or 2.1.(2a). See the "Upgrading with IVR Enabled" section on page 13 for these instructions. - FICON: If you have FICON enabled, the upgrade path is different. See Table 5. Use Table 4 to determine your nondisruptive upgrade path to Cisco SAN-OS Release 3.1(2a). Find the image release number you are currently using in the Current column of the table and use the path recommended. Note The software upgrade information in Table 4 applies only to Fibre Channel switching traffic. Upgrading system software disrupts IP traffic and SSM intelligent services traffic. Table 4 Nondisruptive Upgrade Path to SAN-OS Release 3.1(2a) Current Nondisruptive Upgrade Path SAN-OS 3.1(2) You can nondisruptively upgrade directly to SAN-OS Release 3.1(2a). SAN-OS 3.1(1) You can nondisruptively upgrade directly to SAN-OS Release 3.1(2a). SAN-OS 3.0(3a) You can nondisruptively upgrade directly to SAN-OS Release 3.1(2a). SAN-OS 3.0(3) You can nondisruptively upgrade directly to SAN-OS Release 3.1(2a). SAN-OS 3.0(2a) You can nondisruptively upgrade directly to SAN-OS Release 3.1(2a). SAN-OS 3.0(2) You can nondisruptively upgrade directly to SAN-OS Release 3.1(2a). SAN-OS 3.0(1) You can nondisruptively upgrade directly to SAN-OS Release 3.1(2a). SAN-OS 2.1(3) You can nondisruptively upgrade directly to SAN-OS Release 3.1(2a). SAN-OS 2.1(2e) You can nondisruptively upgrade directly to SAN-OS Release 3.1(2a). SAN-OS 2.1(2d) You can nondisruptively upgrade directly to SAN-OS Release 3.1(2a). OL-12208-03 Cisco MDS 9000 Family Release Notes for Cisco MDS SAN-OS Release 3.1(2a) 11