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Configuration Buttons
Create New. Open a Storage Hierarchy window with default values.
Configure. Open the selected storage hierarchy configuration for editing. One hierarchy from the list
must be selected before this button is active.
Delete. Delete the selected storage hierarchy(s).
6.2.2. Storage Hierarchy Configuration Window
This window allows an administrator to manage a storage hierarchy.
A maximum of 5 storage classes can be configured into a hierarchy. A single storage class may appear in
multiple hierarchies. No hierarchy can reference the same storage class more than once.
Note that in addition to defining the hierarchy, the appropriate migration policies must be configured for
each storage class in the hierarchy. Without the proper migration policies, neither migration nor
duplicate tape copies will be maintained. See Section 6.4 Migration Policies on page 180.
Once a storage hierarchy has been created, it should not be deleted as long as there is a Class of Service
entry associated with it. A Class of Service entry should never be deleted unless all files in that Class of
Service have been deleted and no client is still attempting to use that Class of Service.
After changing any hierarchy information, all Core Servers and Migration Purge (MPS) servers must be
recycled to make the changes effective.
HPSS Management Guide
November 2009
Release 7.3 (Revision 1.0)
172
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