New features include storage virtualization via VMFS 3, a new distributed file system that lets users bundle storage from different storage arrays and then pools them and makes them available to applications. With VMotion, the new Distributed Resource Scheduler (DRS) tool aggregates hardware resources into logical resource pools and allocates them to applications running in virtual machines. When a virtual machine feels the weight of an increased load, DRS allocates more resources by redistributing virtual machines among the physical servers. Another new tool, VMware High Availability (HA), eliminates single points of hardware failure by relocating and restarting virtual machines. VMware Consolidated Backup offloads backup jobs to one central server. This function reduces the load on ESX Server and allows it to run more virtual machines while backing up data during production hours.