HP Matrix Operating Environment Software - Manual (Page 47)

You must specify the target type preferred for all sites on the CMS at each site:
•
If you specify Virtual as the target type preferred for a site, all cross-technology logical servers
whose Recovery Groups prefer that site are activated on VM hosts during an Activate operation
at that site. A physical server is chosen only if no VM hosts are available.
•
If you specify Physical as the target type preferred for a site, all cross-technology logical servers
whose Recovery Groups prefer that site are activated on physical servers during an Activate
operation at that site. A VM host is chosen only if no physical servers are available.
By specifying appropriate target preferences for sites, you can set up a configuration where DR
Protected cross-technology logical servers run on physical servers at one site and on VM hosts at
the other site. For example, you might choose to have DR Protected cross-technology logical servers
run on physical servers at the preferred site, but run on VM hosts when they failover to the secondary
site.
Managing DR Protected cross-technology logical servers in a Matrix recovery management configuration 47