[H-GEN] What's wrong with this command?

[Ewan Edwards]

Clearly there is some small thing I don't quite understand about 
redirecting or piping the output of one command to the input of 
another. :-(

I was trying to 'tar up' a whole directory on one host and send it to 
a tgz file on another host.  What I actually did with this command 
was 'tar up' the directory and send it to a file on the same host.  

Not sure whether or not the data stream was being piped through the 
network to the remote host and back to the local file. :-/

tar -czf - Jira/ | ssh root at diamond cat - > /misc/Jira.tgz

Shell is bash, OS is RHEL4.