Your main options for a backup method are as follows:
Back up to a single tape device Tape libraries with removable cartridges provide the most complete, comprehensive, and effective means to protect enterprise-wide data.
Use stripe tape devices (redundant array of independent tape [RAIT]) RAIT-5 provides the optimum balance between speed and safety because it writes to a set of tapes as an array and uses a parity stripe to provide checksum information. This technique permits file restoration even when there has been some data loss on a single tape in the array.
Back up to local disk devices Backing up locally keeps backup traffic off the LAN and the server, reducing network bottlenecks.
Back up across the network Centralized backup management enables users to share tape devices and libraries.
