Local storage and multiple ESXi hosts

Hi, I was wondering how vWorkspace manages local storage in a environment with a single Vcenter server and two ESXi, with a local datastore each.

If I store a 'master' (I mean the golden image) vm  on a ESXi's local storage, can vWorkspace replicate this vm to the other ESXi's local storage like Citrix VIAB?

If not, how can I use both of my ESXi servers with local storage and maybe provide some kind of HA?

Am I forced to use shared storage if I want to be able to deploy linked clones on both of my ESXI?

Thanks in advance.