Dell Brocade 6520 Command Reference Supporting Fabric OS v7.1.0 - Page 471

historyMode 2 historyMode Displays the mode of the field replaceable unit (FRU) history log. SYNOPSIS historymode DESCRIPTION NOTES OPERANDS EXAMPLES SEE ALSO Use this command to display the mode of the history buffer, which records the insertion and removal of FRUs on a switch or chassis. This command supports two modes of handling new log entries once the history buffer has reached its maximum size: Rotating mode Any new entry exceeding the maximum buffer size overwrites the oldest entry in the log. This is the default mode. First-in mode Any new entry exceeding the maximum buffer size is discarded. The original entries in the buffer is preserved. The history mode is a factory setting that cannot be modified. The size of the history buffer depends on the hardware platform. The Brocade DCX backbone supports a maximum log size of 50 entries. Because the WWNs are completely separate FRUs in the DCX, they have redundant data in these units. All other platforms containing FRUs support 28 history log entries. The execution of this command is subject to Virtual Fabric or Admin Domain restrictions that may be in place. Refer to Chapter 1, "Using Fabric OS Commands" and Appendix A, "Command Availability" for details. None To display the mode of the history log: switch:admin> historymode History Mode is: Rotating. historyLastShow, historyShow Fabric OS Command Reference 443 53-1002746-01