Increasing VMware VMFS Volume

With vSphere-4, you have option to increase the VMFS Volume similar to the way you expand the disk using Snap Drive/DiskPart on Window servers.

Here are the steps for doing this:

1. Increase the LUN (and Volume if applicable) size to new size on Neap Side.
2. Select a particular host that has access to this Shared VMFS Volume -> Configuration -> Storage -> Properties
3. Verify that the ‘Device Capacity’ and ‘Primary Partitions Capacity’ shows the difference in size that’s increased above.
4. Choose ‘Increase’ -> select the desired Volume to be expanded and ensure its showing that free space will be added to expand the disk.
5. Perform Storage Refresh on other hosts in the Cluster to get the new disk size reflected (can use Get-VMHostStorage –Refresh cmdlet to do this task)

These steps can only be done by directly connecting to any of the hosts in the cluster.