recover gpt partion

[Zyumbilev, Peter]

Hi,

I have hardware raid LSI - 20 TB, one GPT partion /dev/mfid0p1.

System is boatable from the system disk, however  GPT partion on raid
seem corrupted.

When I try to do fsck -y -t ufs I get

Cannot find file system superblock ioctl (GCINFO): Inappropriate ioctl
for device

cant't read bsd label.


What is the correct procedure to try recovery ?

Thanks,

Peter