Sun Microsystems Virtual Tape Library Selecting physical disk resources for use as virtual tape

Managing virtual libraries

tries to calculate this value for you, it does so using the currently allocated size of the virtual tapes. If you are using the capacity on demand feature of the Sun VTL, the currently allocated size is the increment size (typically 5 GB), not the full capacity of the emulated media (for example, 40 GB for Sun StorageTek 9840C cartridges). As a result, the software will let you create as many increment‐sized tapes as will fit in the available disk space, up to the maximum number of slots defined for the library (658 for the Sun VTL library type). If you accept this number and create the tapes, the system will run out of disk space long before the tapes appear to be full.

The advanced method also adds a control to the tape‐creation interface that lets you assign prefixes to tape names. By assigning the same prefix to both the virtual library and each of its virtual tapes, you can greatly simplify subsequent library management.

Next task: “Selecting physical disk resources for use as virtual tape” on page 57.

▼Selecting physical disk resources for use as virtual tape

1.When the Select Physical Devices dialog appears, press Select All

(A below).

A

B

2. Press Next (B).

Next task: at this point, the behavior of the configuration wizard depends on the configuration of the virtual library:

■If the new virtual tapes will reside in a library that has the Auto Archive option enabled, the wizard displays two additional dialogs at this point, Select a Physical Tape Library and Select Physical Tapes. So go to “Setting Auto Archive parameters for virtual tape volumes” on page 58.

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