Trying to re-signature and mount a datastore

Hi all,

I'm stuck trying to develop a workflow and hoping you can help. We need to make a daily DR copy of a production database and mount that copy on another VM. The database lives on a .vmdk with its own LUN and is heavily utilized, so we can only suspend writes for a couple of minutes.

Here's the high level workflow:

1. Suspend writes to the database
2. Create a virtual copy (snapshot) of the LUN on our 3PAR
3. Resume database writes
4. Export (present) the virtual copy from the 3PAR to the ESXi cluster
5. Re-scan storage on all hosts in the cluster
6. Add the LUN and re-signature the datastore
7. Mount the VMDK from the new LUN to the test VM

I'm struggling a bit to make the ESXi portion work. I can successfully re-scan the storage on my hosts, but I'm not able to mount and re-signature the newly discovered datastore. Onyx is telling me to use resignatureUnresolvedVmfsVolume_Task but the action fails with “TypeError: Cannot find function resignatureUnresolvedVmfsVolume_Task in object DynamicWrapper (Instance) : [VcHostSystem]-[class com.vmware.vmo.plugin.vi4.model.VimHostSystem]" I'm running vRO/vCO 5.5.2 and don't have the vi4 library installed nor do I have any actions that will re-signature a volume.

So I'm wondering, has ResignatureUnresolvedVmfsVolume_Task been deprecated and replaced by something else? Or does anyone know of a library/plugin I can add to vRO that will give me the ability to re-signature a datastore?

Thank you in advance for any assistance.

Cheers!