index
Include this parameter to enable index creation if your backup job has a resource type that supports backup indexes.
Resource types that support backup indexes include:
EBSfor Amazon Elastic Block StoreS3for Amazon Simple Storage Service (Amazon S3)
Index can have 1 of 2 possible values, either ENABLED or DISABLED.
To create a backup index for an eligible ACTIVE recovery point that does not yet have a backup index, set value to ENABLED.
To delete a backup index, set value to DISABLED.