When you make changes in your SAN configuration, you might need to rescan storage. You can rescan all storage available to your ESXi host, cluster, or data center. If the changes you make are isolated to storage accessed through a specific host, perform the rescan for only this host.
- In the vSphere Client object navigator, browse to a host, a cluster, a data center, or a folder that contains hosts.
- From the right-click menu, select .
- Specify extent of rescan.
Option Description Scan for New Storage Devices Rescan all adapters to discover new storage devices. If new devices are discovered, they appear in the device list. Scan for New VMFS Volumes Rescan all storage devices to discover new datastores that have been added since the last scan. Any new datastores appear in the datastore list.