A. multiple AIT （Advanced Intelligent Tape） drives configured for each server
B. a standalone LTO （Linear Tape-Open） drive configured for all servers
C. standalone DAT （Digital Audio Tape） drives configured for each server
D. a tape library unit with more then one DAT （Digital Audio Tape） drive configured for all servers
E. a tape library unit with more the one SDLT （SuperDLT） drive configured for all servers

A. configuring a second network card with a different IP address
B. replacing the existing 100 Mbps NIC with a gigabit Ethernet NIC
C. using adapter teaming and configuring the second network card with the same IP address as the first network card
D. installing a dual-port network card that can handle the future growth and setting one NIC to 10 Mbps and one NIC to 100 Mbps