
Volume of information should be considered too, as this might suggest a
tape library. Short term archive may suggest an optical device. These
decisions are covered in 2.1, “Selecting the Hardware Components” on
page 17.
•
Performance
It is important to consider the length of time that a backup will require, and
this is a function of the volume of data and the speed with which the device
can write it. If backups need to be taken every evening, then a device
capable of completing the process in the time available should be chosen.
•
Capacity
This is a question of cost, storage space, and ease of use. The more
information that can be packed onto the media, ...