Storage Distributed Resource Scheduler (DRS)
Storage Distributed Resource Scheduler (DRS) is a feature of VMware’s vSphere that enables
intelligent virtual machine (VM) initial
placement and load balancing based on storage I/O and capacity
within a cluster. Storage DRS is an extension of VMware’s Distributed Resource
Scheduler feature, which balances virtual machine workloads based on CPU and memory resource
utilization.
Storage DRS, which was introduced with VMware vSphere 5, makes the decision to move a VM from
one data store to another and tells Storage vMotion to make the move. It uses a new vCenter
Server object called a data store cluster, which is a collection of data stores made up of VMFS-5 volumes logically
presented as a cluster. Storage DRS can be enabled per data store cluster or per VM.
Also note: Storage DRS supports Network File System (NFS).
Contributor(s): Francesca Sales
This was last updated in November 2011
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