created primary domain on T5240, need to create secondary for failover of guest domains

created primary domain on T5240, need to create secondary for failover of guest domains
,

is that possible.

this is my IO setup

root@solaris11:~# ldm list-io

NAME                                       TYPE   BUS      DOMAIN    STATUS

----                                       ----   ---      ------    ------

pci_0                                      BUS    pci_0    primary

pci_1                                      BUS    pci_1    primary

PCIE1                                      PCIE   pci_0    primary   EMP

PCIE2                                      PCIE   pci_0    primary   EMP

PCIE3                                      PCIE   pci_0    primary   EMP

MB/SASHBA                                  PCIE   pci_0    primary   OCC

PCIE0                                      PCIE   pci_1    primary   EMP

PCIE4                                      PCIE   pci_1    primary   EMP

PCIE5                                      PCIE   pci_1    primary   EMP

MB/NET0                                    PCIE   pci_1    primary   OCC

Please advise me to the commands to create the secondary as failover for the primary.