Brocade MLX Series and Brocade NetIron XMR Hardware ...

7Managing the deviceStatic and dynamic buffersThe software provides a static buffer and a dynamic buffer:• Static – logs power supply failures, fan failures, and temperature warning or shutdownmessages• Dynamic – logs all other message types. In previous releases, power supply messages weredisplayed 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. Ifmultiple temperature warning messages are sent to the log, the latest one replaces the previousone. The static buffer is not configurable.The message types that appear in the static buffer do not appear in the dynamic buffer. Thedynamic buffer contains up to the maximum number of messages configured for the buffer (50 bydefault), then begins removing the oldest messages (at the bottom of the log) to make room fornew ones.The static and dynamic buffers are both displayed when you enter the show logging command.Brocade(config)# show logging...Static Log Buffer:Aug 27 12:42:42:A:Power Supply 6, 1st right, failedDynamic Log Buffer (50 lines):Aug 27 12:19:04:I:Interface ethernet3/4, state upAug 27 12:19:04:I:Interface ethernet6/3, state upAug 27 12:19:04:I:Interface ethernet3/2, state upAug 27 12:19:04:I:Interface ethernet6/1, state upAug 27 12:19:00:N:Module up in slot 6Aug 27 12:19:00:N:Module up in slot 3Aug 27 12:18:43:I:Warm startWhen you clear log entries, you can selectively clear the either buffer, or you can clear both. Forexample, to clear only the dynamic buffer, enter the clear logging command at the Privileged EXEClevel.Brocade# clear logging dynamic-bufferSyntax: clear logging [dynamic-buffer | static-buffer]Specify the dynamic-buffer keyword to clear the dynamic buffer, or the static-buffer keyword toclear the static buffer. If you do not specify a buffer, both buffers are cleared.328 Brocade MLX Series and Brocade NetIron XMR Hardware Installation Guide53-1002373-02