When you make changes in your ESX/ESXi host or SAN configuration, you might need to rescan your storage adapters. You can rescan all adapters on your host. If the changes you make are isolated to a specific adapter, rescan only this adapter.

Use this procedure if you want to limit the rescan to a particular host or an adapter on the host. If you want to rescan adapters on all hosts managed by your vCenter Server system, you can do so by right-clicking a datacenter, cluster, or folder that contains the hosts and selecting Rescan for Datastores.

1

In the vSphere Client, select a host and click the Configuration tab.

2

In the Hardware panel, select Storage Adapters, and click Rescan above the Storage Adapters panel.

You can also right-click an individual adapter and click Rescan to rescan just that adapter.

Important

On ESXi, it is not possible to rescan a single storage adapter. If you rescan a single adapter, all adapters are rescanned.

3

To discover new disks or LUNs, select Scan for New Storage Devices.

If new LUNs are discovered, they appear in the device list.

4

To discover new datastores or update a datastore after its configuration has been changed, select Scan for New VMFS Volumes.

If new datastores or VMFS volumes are discovered, they appear in the datastore list.