BackBox H4.00 User Manual

Product Description
30 BackBox H4.00 User Manual
To use pre-load with multi-volume backup set:
• Be sure there are two virtual devices available for each NonStop
restore tape process.
• Enable Pre-load in the Volume Group configuration.
BackBox detects and registers the multi-volumes backup sets (BACKUP, BRCOM or
TMF dumps)).
When a load for input is executed and the volume is part of a multi-volume set:
1. The restore script for the first volume is run.
2. As soon as the first volume has been mounted and used by the tape
application, the restore script for the second volume is started.
3. When the restore script ends, the volume is loaded and recognized by the
NonStop tape system as an "Un-requested load".
4. When the tape application requests the next volume, it will already be
mounted.
Note: when the next volume has less than one MB of data, the pre-load is not
executed.
Restricted Data Stores
A Restricted Data Store is an alternate view of a regular Data Store owned by
another domain. It provides read access to virtual volumes owned by another
BackPak Domain most often running on different NSK nodes.
Restricted Data Stores are also a last resort way to repopulate manually the BackPak
catalog of virtual volumes, when this catalog (VOLUME* NonStop files) has been lost,
and:
- no backup is available to restore VOLUME*
- no DSM/TC or TMF Catalogue can be used as source of re-registration in the
BackPak domain (‘Import from tape catalogue”)
- but actual volume images are still available in the Data Stores.
In such scenario, the Data Store is created RESTRICTED to manually register the
volumes in the domain; once volumes are registered, the “Domain access” of the
Data Store is changed to the regular value PRIMARY to allow not only restore but
also backups.