Phase is term used when you have VTL setup in your system. The phase1 is from client to VTL(which is can be a server with higher disk capacity or dedicated VTL hardware) , phase2 is from VTL to tape-drive.
Phase is term used when you have VTL setup in your system. The phase1 is from client to VTL(which is can be a server with higher disk capacity or dedicated VTL hardware) , phase2 is from VTL to tape-drive.