Cisco Systems SN 5428-2 manual Uninstalling an Upgrade, Command, Description

Step 6 At Select next boot version, select the new software version. If you have made configuration changes to the storage router that have not been saved, click the Save unsaved changes? checkbox to save any configuration changes that have been made but not saved to the storage router’s bootable configuration

Step 7 Click Reset System.

Step 8 After the storage router has rebooted, verify that it is running the new software. (See the “Determining the SN 5428-2 Software Version” section on page 7 .)

If the storage router is deployed for transparent SCSI routing, the upgrade to version 3.5.1 from any version prior to 3.3.1 places the storage router in dynamic mode. Dynamic mode resets iSCSI client-to-FC WWPN bindings upon reboots or iSCSI logouts, and requires an intelligent storage array that supports an extended iSCSI FC PLOGI frame. To change the mode of an existing transparent SCSI routing deployment, you must completely clear the storage router configuration. When the storage router reboots, follow the prompts from the initial configuration script to complete the new system configuration and select the desired mode for transparent SCSI routing.

For more information about clearing the storage router configuration, see the section “Resetting the System” in Chapter 11, “Maintaining and Managing the SN 5428-2 Storage Router,” of the Cisco SN 5428-2 Storage Router Software Configuration Guide, Release 3.5.

For more information about static and dynamic modes for transparent SCSI routing, see the section “Summary of Configuration Process” in Chapter 7, “Configuring Transparent SCSI Routing,” of the Cisco SN 5428-2 Storage Router Software Configuration Guide, Release.3.5.

Uninstalling an Upgrade

Note Software versions prior to 3.3.1 do not support the static mode for transparent SCSI routing.

To return to a previous SN 5428-2 software release, and remove the updated SN 5428-2 software using the CLI, follow these instructions:

		Command	Description
	Step 1
		enable	Enter Administrator mode
	Step 2
		show software version all	Verify that the previous version of SN 5428-2 software is still
			available. If it is not, see the section “Installing Updated Software”
			in Chapter 11, “Maintaining and Managing the SN 5428-2 Storage
			Router,” of the Cisco SN 5428-2 Storage Router Software
			Configuration Guide, Release 3.5.
	Step 3
		software version 3.4.1	Select the software to be booted when the system next starts — for
			example, boot version 3.4.1 — when the system restarts. This may
			take several minutes.
	Step 4
		reboot	Reboot the SN 5428-2 Storage Router.
			Caution Do not use the reboot fast command. Downgrading
				software requires a reboot with diagnostics.
	Step 5
		enable	Enter Administrator mode after the SN 5428-2 reboots.
	Release Notes for Cisco SN 5428-2 Storage Router, Release 3.5.1
8				OL-5241-02