Dell Brocade G620 Brocade 8.0.1 Fabric OS Command Reference - Page 1169

wwnRecover wwnRecover Utility to recover mismatch of data in WWN card. Errors may be due to corruption, defect, or other causes. Synopsis wwnrecover Description Notes Use this command to recover one or both WWN cards from errors detected by the audit routine. The audit routine is triggered upon first boot up of the system, periodically every 24 hours thereafter, and upon detection of insertion of either of the WWN card. The audit routine performs consistency checks on each of the following sections of data maintained in the WWN cards for use by the corresponding system component: • License ID data sections within the same WWN card • IP address data sections across the two WWN cards • DCE data sections across the two WWN cards • License ID data sections across the two WWN cards • Chassis configuration data sections across the two WWN cards • Chassis serial and part number sections across the two WWN cards Error resulting from a mismatch in data may be encountered on one or more sections. The recovery mechanism may vary depending on the nature of the error encountered and is also based on the data section. The wwnrecover operation presents a summary of all the errors detected and prompts you through the recovery process interactively for all data sections. For each data section, you will be prompted with an option to recover WWN1 card data from WWN2 card data or vice-versa or to exit without recovering the corresponding data section. For example, if WWN2 is replaced by a minimally programmed factory replacement card, WWN recovery recommends to recover most of the data sections on WWN2 from WWN1. However, in a rare case where a bit corruption occurs in one data section on one card and another bit corruption in a different data section on the other card, the recovery for each of the affected data sections will be different. WWN recovery is not possible if the license ID differs on both WWN cards. In the event of any of the following issues with WWN card operations, the system logs the corresponding RASlog message: • Mismatch between the two WWN cards detected by the audit routine (EM-1220 message). • Insertion of either of the two WWN cards detected by the system (EM-1221 message). • Access failure by the audit routine during read/write to either of the WWN cards (EM-1222 message). The execution of this command is subject to Virtual Fabric restrictions that may be in place. Refer to "Using Fabric OS Commands" and "Command Availability" for details. Operands None Examples To perform WWN recovery (the following example shows that no WWN errors were detected): switch:admin> wwnrecover No WWN Error is detected. Exiting. Brocade Fabric OS Command Reference 1145 53-1004112-02