zpool-reguid — generate new unique identifier for ZFS storage pool

       Generates a new unique identifier for the pool.  You must ensure that all devices in this pool are online
       and healthy before performing this action.

       -gguid
               Set  the  pool  GUID  to  the  provided  value.   The  GUID  can  be any 64-bit value accepted by
               strtoull(3) in base 10.  zpool-reguid will return an error if the provided  GUID  is  already  in
               use.

       zpool-reguid — generate new unique identifier for ZFS storage pool

zpool-export(8), zpool-import(8)

OpenZFS                                           June 21, 2023                                  ZPOOL-REGUID(8)

zpoolreguid [-gguid] pool