Resignature a VMFS Datastore Copy

Use datastore resignaturing if you want to retain the data stored on the VMFS datastore copy.

Prerequisites

To resignature a mounted datastore copy, first unmount it.

Before you resignature a VMFS datastore, perform a storage rescan on your host so that the host updates its view of LUNs presented to it and discovers any LUN copies.

Procedure

1	Log in to the vSphere Client and select the server from the inventory panel.
2	Click the Configuration tab and click Storage in the Hardware panel.
3	Click Add Storage.
4	Select the Disk/LUN storage type and click Next.
5	From the list of LUNs, select the LUN that has a datastore name displayed in the VMFS Label column and click Next. The name present in the VMFS Label column indicates that the LUN is a copy that contains a copy of an existing VMFS datastore.
6	Under Mount Options, select Assign a New Signature and click Next.
7	In the Ready to Complete page, review the datastore configuration information and click Finish.

What to do next

After resignaturing, you might have to do the following:

■	If the resignatured datastore contains virtual machines, update references to the original VMFS datastore in the virtual machine files, including .vmx, .vmdk, .vmsd, and .vmsn.
■	To power on virtual machines, register them with vCenter Server.