Since we keep 180 snapshots over 1000+ accounts, the disk usage is becoming insane, and the IO on the hosting server before / during the backup is also unacceptable.
So - can the index DB be moved to another server in order to increase performance?
We recommend that you update your installation to JetBackup v5.3 BETA. The WiredTiger-jetindexd is deprecated in v5.3, and we have replaced it with remote SQLite databases that are stored on the remote destination which are cached locally only wherever necessary. As a result, reindexing a destination will be much faster than before.
In addition to this, the JetBackup Export/Import CLI tool is also available in v5.3. This feature will allow you to export your JB config on demand and import it onto another JetBackup installation and all of your server settings (backup jobs, destinations, etc.) will be transferred. Please refer to our documentation for more information: