VMware ESXi expanding Datastore size after the RAID group expand

Remark: Please make sure all data/VM datastore being backup before expanding.

Step 1: Go to "Configuration" -> "Storage Adapters" -> select RAID controller and click "Rescan"

Step 2: Select the LUN (RAID group) which is being expanded

Step 3: Select the datastore which is need to expand

Step 4: Right click and select "Properties..."

Step 5: Click "Increase"

Step 6 - 8:

Step 9 : Click "Finish"

Done