HP Cisco MDS 9020 Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Rele - Page 31
To SAN-OS Release, Nondisruptive Downgrade Path, To SAN-OS Release with FICON Enabled, Downgrade Path
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Downgrading Your Cisco MDS SAN-OS Software Image Send documentation comments to mdsfeedback-doc.com. Table 12 Nondisruptive Downgrade Path from NX-OS Release 4.1(3a) (continued) To SAN-OS Release Nondisruptive Downgrade Path SAN-OS 2.0(1b) Downgrade to SAN-OS Release 3.3(x) first, then to Release 2.1(2x), and then downgrade to Release 2.0(1b). SAN-OS 1.x Downgrade to SAN-OS Release 3.3(x) first, then downgrade to SAN-OS to Release 2.1(2b), then to Release 1.3(4a), and then downgrade to your SAN-OS 1.x release. Use Table 13 to determine your nondisruptive downgrade path, if you have FICON enabled, from Cisco NX-OS Release 4.1(1b) Find the image release number you are currently using in the Current Release with FICON Enabled column of the table and use the path recommended. Table 13 FICON Downgrade Path from NX-OS Release 4.1(3a) To SAN-OS Release with FICON Enabled NX-OS 4.1(1c) SAN-OS 3.3(1c) SAN-OS 3.2(2c) SAN-OS 3.0(3b) SAN-OS 3.0(2) SAN-OS 2.0(2b) SAN-OS 1.3(4a) Downgrade Path You can nondisruptively downgrade directly from NX-OS Release 4.1(3a). You can nondisruptively downgrade directly from NX-OS Release 4.1(3a). First downgrade to SAN-OS Release 3.3(1c) and then downgrade to Release 3.2(2c). First downgrade to SAN-OS Release 3.3(1c) and then downgrade to Release 3.0(3b). First downgrade to SAN-OS Release 3.3(1c) and then downgrade to Release 3.0(2). Use the interface shutdown command to administratively shut any Fibre Channel ports on Generation 1 modules that are in an operationally down state before nondisruptively downgrading from NX-OS Release 4.1 to SAN-OS Release 3.3(1c) then to SAN-OS Release 3.0(3b) or SAN-OS Release 3.0(2), and then to SAN-OS Release 2.0(2b). An operationally down state includes Link failure or not-connected, SFP not present, or Error Disabled status in the output of a show interface command. When an interface is administratively shut it will then show as Administratively down. Interfaces that are currently up or trunking do not need to be shut down. Downgrade to SAN-OS Release 3.3(1c) and then to Release 3.0(2). Use the shutdown command to shut all the ports operationally down and administratively up on all the Generation 1 modules before nondisruptively downgrading to Release 2.0(2b) and then downgrade to 1.3(4a). OL-17675-05 Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Release 4.1(3a) 31