Ability to Move Replicas within the same Broker on other Disks when DISK_FAILURE occurs

[imans777]

Hi,
Currently when DISK_FAILURE occurs and triggers self healing, those dead replicas are moved outside of that broker. But when we have multiple disks on the same broker, it should be able to relocate those replicas on other disks on the same broker (if possible, complying to goals in a smart way of course); In fact, some of them may be needed to move to other disks, while others should be moved out from broker, according to how goals are set.
Thanks.