Disaster Recovery Planning for Large Archives

“Disaster recovery (DR) is often discussed in broad terms
throughout the storage industry, but in this article I will explore
a specific segment of the overall market: DR planning for large
archives.

“This is the first article in a two-part series on archives. The
next article will cover architectural planning for large
archives.

“First, what are my definitions of an archive, and what is a
large archive? An archive is a repository of information that is
saved, but most of the information is infrequently accessed.

“The definitions of archives have changed recently. Just three
or four years ago, archives were always on tape, with only a small
disk cache (usually less than 5% of the total capacity). The
software to manage data on tape and/or disk is called hierarchical
storage management (HSM) and was developed for mainframes more than
35 years ago.”

Complete Story