A method is performed with an enterprise storage system comprising disk storage
and sequential storage media. Alternatively, systems, subsystems, and computer
media containing encoded portions are disclosed. The method serves the data storage
needs of a given client coupled to the enterprise storage system via a network.
A physical device level backup is performed, backing up data from the disk storage
to the sequential storage media, while minimizing demands on the client. The device
level backup comprises a complete image backup of data in a host device as defined
from a perspective of the given client. A logical restore of data is performed
on a file by file basis from physically backed data on the sequential storage media.
The logical restore involves locating files requested by the client on the sequential
storage media and recovering the files from the sequential storage media. The files
comprise files defined in accordance with a files system defined by the client.