The Service Processor Infrastructure (spi) web service is enabled by default to enable a web browser to access the log, core dump, and MIB files of a node in the cluster. The files remain accessible even when the node is down, provided that the node is taken over by its partner.
For more details on accessing a node's log, core dump, and MIB files by using a web browser refer below link,
but, how if I direct to the machine and using cli? can I using cp command and copy log from /mroot/etc/log/ to other location with output .txt extension file?