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Vault locations are defined using the Online facility and stored in a special member in the definitions library. A vault definition contains the vault name, vault attributes (either local or remote), some documentary data, and details about the capacity and organization of the vault.
During the Initialization process, vault definitions are loaded into memory and become part of the Real-Time environment. These definitions can be changed and reloaded without shutting down Control-M/Tape.
When the Vault Management facility is run, volumes are moved to and from vaults. Each volume is assigned an empty slot in its new vault and its old slot becomes free. Data about the current capacity of a vault is kept and updated in special records (vault records) within the Media Database.
If vault capacity is not specified when defining a vault, Control-M/Tape does not manage slots in that location.
When a vault definition is modified (for example, by screen TV), the modification is stored in the Vault Definition member (for example, $$VAULT) but does not affect the vaulting of volumes until after the next run of utility CTTVTM.
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