Historymode – Dell POWEREDGE M1000E User Manual

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Fabric OS Command Reference

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historyMode

Displays the mode of the field replaceable unit (FRU) history log.

SYNOPSIS

historymode

DESCRIPTION

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.

NOTES

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.

OPERANDS

None

EXAMPLES

To display the mode of the history log:

switch:admin> historymode

History Mode is: Rotating.