You upgraded from Acronis Cyber Protect 12.5 to Acronis Cyber Protect 15.
When you try to edit an existing protection plan or create a new plan with Backup module enabled, the following error is displayed:
At least two drives must be specified in multistreaming options
Issue in the product: Tapes entry in the registry contains invalid value after the upgrade.
This issue will be fixed in future versions of the product.
As a workaround, rename the faulty registry key:
- Open Windows Registry: Start -> Search -> regedit.exe
- Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Acronis\AMS\Configuration\Protection\Backup\Tapes and rename this key, e.g. to Tapes111