Brocade Communications Systems 53-1002373-02 manual Static and dynamic buffers

7 Managing the device

Static and dynamic buffers

The software provides a static buffer and a dynamic buffer:

•Static – logs power supply failures, fan failures, and temperature warning or shutdown messages

•Dynamic – logs all other message types. In previous releases, power supply messages were displayed in static logs only, with only the last event logged. Beginning with release 03.8.00, power supply messages are displayed in both static and dynamic logs.

In the static log, new messages replace older ones, so only the most recent message is displayed. For example, only the most recent temperature warning message will be present in the log. If multiple temperature warning messages are sent to the log, the latest one replaces the previous one. The static buffer is not configurable.

The message types that appear in the static buffer do not appear in the dynamic buffer. The dynamic buffer contains up to the maximum number of messages configured for the buffer (50 by default), then begins removing the oldest messages (at the bottom of the log) to make room for new ones.

The static and dynamic buffers are both displayed when you enter the show logging command.

Brocade(config)# show logging

...

Static	Log Buffer:		6, 1st right, failed
Aug 27	12:42:42:A:Power Supply
Dynamic Log Buffer (50 lines):
Aug 27	12:19:04:I:Interface	ethernet3/4, state up
Aug 27	12:19:04:I:Interface	ethernet6/3, state up
Aug 27	12:19:04:I:Interface	ethernet3/2, state up
Aug 27	12:19:04:I:Interface	ethernet6/1, state up
Aug 27	12:19:00:N:Module up	in	slot 6
Aug 27	12:19:00:N:Module up	in	slot 3
Aug 27	12:18:43:I:Warm start

When you clear log entries, you can selectively clear the either buffer, or you can clear both. For example, to clear only the dynamic buffer, enter the clear logging command at the Privileged EXEC level.

Brocade# clear logging dynamic-buffer

Syntax: clear logging [dynamic-buffer static-buffer]

Specify the dynamic-bufferkeyword to clear the dynamic buffer, or the static-bufferkeyword to clear the static buffer. If you do not specify a buffer, both buffers are cleared.

328	Brocade MLX Series and Brocade NetIron XMR Hardware Installation Guide
	53-1002373-02