Free Storage is the total capacity of all empty stacked volumes in the library

calculated by using a compression ratio as described for Maximum Active Data

above. Partially ®lled stacked volumes are not included in this calculation. Free

Storage gives an indication of how much data from the Tape Volume Cache can be

added to stacked volumes currently in the VTS.

Free Storage Alarm Level is a threshold to warn you when to add more stacked

volumes to the VTS library. If the number of empty stacked volumes available is

less than the number of stacked volumes required to store the amount of Tape

Volume Cache data speci®ed by the Free Storage Threshold (GB), the Library

Manager signals an intervention required condition to notify the operator to add

more stacked volumes. You can modify the alarm threshold on the Library

Manager's VTS Management Policies window. See ªSet VTS Management Policiesº

on page 167 for more information.

 

The VTS Active Data window has the following pull-downs available from its action

 

bar:

 

Refresh

 

Refreshes or updates the contents of the window immediately. You can also

 

click the pointing device on the client area of the window.

 

Help Provides help about the VTS Active Data window.

 

To close the window, select Close from the system menu icon (upper-left corner of

 

the window).

124Magstar 3494 Tape Library Operator Guide

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