3.2

Table Of Contents
Creating and Restoring Database Backups
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For example, if a sequence of backups looks like this: c(complete)1 -> i(incremental)1
-> i2 -> d(differential)1 -> i3 -> i4 -> d2 -> i5 -> i6, to restore i6 the backups you need
in the same folder are c1, d2, i5, and i6. You need these files because i6 contains the
changes since i5, which contains the changes since d2, which contains the changes since
c1.
A Fast Metadata Only backup contains only a _Database folder, and can only be run
manually. A Fast Metadata Only backup is limited in its usefulness. You can use it to restore
the database structure if it becomes corrupted, but it does not restore the contents of the
_PropertyStore folder. To restore the contents of the _PropertyStore folder, you need to
restore the most recent Complete backup, Incremental backup, or Differential backup, as
described above.
The InterplayRestore tool automatically identifies the type of backup that you select.
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Earlier versions of the Interplay Engine did not delete streamed properties from the
_PropertyStore folder until the next Complete backup was performed. Starting with Interplay
Engine v3.0, streamed properties are deleted immediately on deletion request unless there is an
active backup. In this case, the deletion takes place after the next Complete backup.
Distinguishing Between Types of Backups
To distinguish between a Fast Metadata Only backup and the other types of backups, open the
backup folder and check if a _PropertyStore folder exists. A Fast Metadata Only backup does not
contain a _PropertyStore folder.dd