What is deduping?

Answer 1

Deduping is another way of saying "data deduplication."

Data deduplication is also known as "single instancing." Both terms describe the process of eliminating redundant data from a system or network. In this process, duplicative data is expunged from shared files or systems, so that there is only one copy (hence the term, "single instance") of the data stored. Thus, a document which may need to be accessed by hundreds or even thousands of individuals only has to be saved once, but remains available in its canonical form to all machines on the system. (Source 1)

The process of data deduplication can save enterprise businesses and large organizations up to 96 percent of their bandwidth -- allowing systems to run more quickly and smoothly. Deduplication at this level of efficiency is rare, but has been accomplished by some elite backup and file-sharing services. (Source 2)

Deduplication is particularly important for enterprise businesses that depend on the constant flow of large volumes of data -- banks and other financial institutions, health care institutions, universities, government and law enforcement institutions and most industries that involve hundreds or thousands of individual workstations connected to large databases of secure, proprietary data.