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2 CentricStor - Virtual Tape Library
2.1 The CentricStor principle
Conventional host robot system
Figure 1: Conventional host robot system
In a conventional real host robot system, the host system requests certain data cartridges
to be mounted in a defined real tape drive. As soon as the storage peripherals (robots,
drives) report that this has been completed successfully, data transfer can begin. In this
case, the host has direct, exclusive access to the drive in the archive system. It is crucial
that a completely static association be defined between the application and the physical
drive.
Host
Drive
Data cartridges
Robots
Drive
Drive
Drive