The main problem with unstructured data growth is rooted in the difficulty in managing the data lifecycle. Data begins life “hot” and frequently accessed, but as data ages, at some point it should be moved to a lower tier. But moving data to a lower tier breaks the links, as shown in Figure 23.1.
Figure 23.1 The Challenge of Migrating Unstructured NAS Data
In Figure 23.1, Vol-A (2) is filling up, and aging data needs to be moved to Vol-B (3). Physically copying the data is no big deal, but the problem is that every link breaks. When the servers (1) look for data, they look ...
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