We have been having several issues, especially with cluster volumes, after
installing Networker client 7.2.1. The latest is that it frequently will
back up a whole volume and then fail to write the index file and report an
RPC error. This seems to happen mostly on larger volumes (over 200 GB -
and only cluster volumes so far). Planning to install NWLIB6G this
weekend. Don't know if that will help, but hopefully it will.

Anyone else had a similar problem with Networker?