Here is another video for your consumption where once again we demonstrate how to perform various tasks within vSphere 5.1 using the vSphere Web Client.
In this video we discuss and demonstrate how to retain resource pools when disabling VMware DRS Clusters in vSphere 5.1 using the vSphere Web Client.
After disabling DRS, the cluster’s resource pool hierarchy and affinity rules are not retained when DRS is turned back on. If you disable DRS, the resource pools are removed from the cluster.
To avoid losing the resource pools when disabling DRS, you can save a snapshot of the resource pool tree on your local machine. You can then use the resource pool tree snapshot to restore the resource pool when you enable DRS.
For additional information, see VMware Knowledge Base article: Retaining resource pools when disabling VMware DRS clusters (2032893).