Is the migration being configured appropriately?

From the Advanced tab on the Vault Store Partition Properties dialog box, you can configure a partition for migration. Make sure that you enter the value of NBU Policy and NBU Server correctly.

To verify that you configured the migration properly, click Test.

If the test fails, and the NBU Policy and NBU Server configurations are correct, the issue could be due to one of the following reasons:

See About Log Collection.