3.2

Table Of Contents
Creating and Restoring Database Backups
43
How the Restore Tool Renames Folders
When the tool begins the restore, it locks the database and then renames the existing folder
_Database to _Database.1. If you are performing a restore from a Complete backup, the tool also
renames _PropertyStore to _PropertyStore.1.
If a folder _Database.1 already exists, the tool creates _Database.2, and so on up to _Database.9.
The tool uses the first free number between 1 and 9 when it renames the _Database and
_PropertyStore folders. If no number is free, you need to delete some of the previously renamed
folders so that the tool can run.
If the backup restore is not completed (if you kill the process, if the system crashes, if you get an
error message, and so on), you can restore the system to its previous state by deleting the
_Database folder (and possibly the _PropertyStore folder) that the tool created and renaming
_Database.1 to _Database (and _PropertyStore.1 to _PropertyStore).
After you verify that the backup ran successfully and your database is working correctly, you can
save storage space by deleting the numbered backup folders ( _Database.x and _PropertyStore.x)
created during the restore process.
Restoring a Complete Backup or a Fast Backup
To restore a database, you need to restore a Complete backup, a Fast backup, or both, depending
on the type of backups available. (see
“Types of Interplay Administrator Backups” on page 30
for a description of each type of backup).
A Complete backup contains a _Database folder and a _PropertyStore folder. A Complete
backup is needed if the complete database needs to be restored, for example, if a hard disk
crashes.
A Fast Incremental Backup and a Fast Differential Backup also contain a _Database folder
and a _PropertyStore folder. If you restore a Differential or Incremental backup, all backups
it depends on must be in the same backup location.
The following backups must be in the same folder:
- For a Differential backup, the last Complete backup before the backup you are restoring.
- For an Incremental backup, the last Complete backup and the necessary Incremental or
Differential backups between the last Complete backup and the backup you are
restoring.
You do not need all backups between the last Complete backup and the backup you are
restoring. You need the most recent Complete backup, the most recent Differential
backup (if any), and any Incremental backups since the last Complete or Differential
backup.