Remote server need to be added?

Hi,

One of the remote server which needs to be added in to the cell manager. 

We have 6.21 cell manager in one of the site. And only one server in a remote site. But the bandwdith with low between this 2 sites. 

I have pused the HPDP client from the cell manager server and tried to run the backup. But it is very slow.

Is there any idea, to take this server backup in a faster way.

Thanks,

Abdul.