Health check script

There are 3 servers . I want to fire commands df -kh and mpstat -P ALL on those individual servers and retrieve particular values to genrate reports. This part is almost done. But i am facing issue when i need to compile the reports from all three servers on to one server in order to generate a final report . How can i send a particular report generated on different servers to a single server and append them ?

scp to one server
use "cat file1 >> main" to append