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
# vxdisk -s list disk_access_name
The disk must be specified by its disk access name, such as sdc. Examine the output from the command for a line similar to the following that specifies the disk group ID.
dgid: 963504895.1075.bass
# vxdg import dgid