Thanks Gaurav,
How to take diskgroup configuration backup,,,I want to restore the configuration backup,when the server OS got crashed and reinstalled os,,,,veritas diskgroup was created by SAN disks,Now all SAN disks are present,but Veritas software newly installed,is it will sense that disks are CDDISK or Sliced or hpdisk whatever.....we can directly import diskgroup from disks(if we know the disks details),,,to get data,,without restore data from backup....need to get old LV's as it is with data