[Info-vax] HPVM, OpenVMS Clustering and Volume Shadowing

[JF Mezei]

Jeremy Begg wrote:

> The main limitation of HPVM for OpenVMS is that the guest cannot access 
> shared storage, i.e. any storage hardware presented to the guest by HPVM 
> must be for the guest's exclusive use.

Is this at the hardware interface level ?

aka: if you have a remote disk array, the cable between the disk array
and the HP mainframe can only connect to one OS instance running on that
mainframe ?  So if you had 2 VMS instances, only one could get direct
access to the disk array ?

But if the disk array had 2 interfaces to the mainframes (as it they
were 2 different machines), is it then OK to have on interface assigned
to each OS instance, at which point they each get a direct path to the
disk array ?