As you already stated. You can specify minimum free space available on PCMCIA, maximum file size and percentage amount of memory for logs on PCMCIA. These criteria trigger file transfer to the remote server. After the log file is succesfully transfered to a remote host the switch deletes the log on PCMCIA and starts logging to a new file which file name is incremented by 1.
You can setup up to 10 remote servers.
logging transferFile <1-10> address