ref: 2a5ba3cfc8748cd08bea89d93080948132f5aefe dir: /tests/test.9/blocks/1/
Tdata 2 size 67108864 nblocks 131072 backup config 1 to 131071 65544 backup super 2 to 131070 65543 backup root 3 to 131069 65542 service mafs_test.9