If a disk group has been accidentally destroyed, you can recover it, provided that the disks that were in the disk group have not been modified or reused elsewhere.
To recover a destroyed disk group
dgid) of one of the disks that was in the disk group:
vxdisk -s list disk_access_name
The disk must be specified by its disk access name, such as
c0t12d0. Examine the output from the command for a line similar to the following that specifies the disk group ID.
vxdg import dgid