Dell Brocade G620 Brocade 8.0.1 Fabric OS Message Reference Guide - Page 46

1 Responding to a system message • Assess impact and urgency: - Is the switch down? - Is it a standalone switch? - How large is the fabric? - Is the fabric redundant? • Use the errDump command on each logical switch. • Use the supportFtp command (as needed) to set up automatic FTP transfers, and then run the supportSave command. • Document the sequence of events by answering the following questions: - What happened just prior to the problem? - Is the problem repeatable? - If so, what are the steps to produce the problem? - What configuration was in place when the problem occurred? • Did a failover occur? • Was security enabled? • Was POST enabled? • Are serial port (console) logs available? • Which CP was master? • What and when were the last actions or changes made to the system? Common steps to be followed when troubleshooting a system message are as follows: • Use the errDump command on each logical switch. • Use the supportFtp command (as needed) to set up automatic FTP transfers, and then run the supportSave command. Support Fabric OS creates a number of files that can help support personnel troubleshoot and diagnose a problem. This section describes those files and how to access or save the information for support personnel. Panic dump and core dump files Fabric OS creates panic dump files and core files when there are problems in the Fabric OS kernel. You can view panic dump files using the pdShow command. These files can build up in the kernel partition (typically because of failovers) and might need to be periodically deleted or downloaded using the supportSave command. The software watchdog process (SWD) is responsible for monitoring daemons critical to the function of a healthy switch. The SWD holds a list of critical daemons that ping the SWD periodically at a predetermined interval defined for each daemon. The ping interval is set at 133 seconds, with the exception of the Fabric Watch daemon and the IP storage demon, which ping the SWD every 333 seconds. (For a complete listing of daemons, refer to the KSWD entry in Table 6.) 26 Brocade Fabric OS Message Reference 53-1004119-01