How to recreate a deduplication database

The new indexing algorithm requires the new deduplication database format. To apply this algorithm to an old vault, you must recreate the vault’s deduplication database.

Exporting data to a newly created vault is not recommended because it requires additional time to “assemble” the deduplicated data and additional space to temporarily store this data. Redirecting backups from an old vault to a new vault results in a full backup of the data and a worse deduplication ratio because the data is not deduplicated between the two vaults.

There are two methods of recreating the deduplication database:

Both methods use the same principle: if the storage node does not find the database, it creates the database from scratch. This process length depends on the datastore size and disk I/O speed. On average, 1 TB of the datastore requires 3 hours. The next section describes how to find the datastore file.

In this section

How to find the datastore file

Re-attaching the managed vault

Changing the deduplication database path