== sanity-lfsck test 18b: Find out orphan OST-object and repair it (2) ========================================================== 06:13:10 (1713521590)
#####
The target MDT-object is lost. The LFSCK should re-create the
MDT-object under .lustre/lost+found/MDTxxxx. The admin should
can move it back to normal namespace manually.
#####
2+0 records in
2+0 records out
2097152 bytes (2.1 MB) copied, 0.0252639 s, 83.0 MB/s
[0x200000402:0x75:0x0]
/mnt/lustre/d18b.sanity-lfsck/a1/f1
lmm_stripe_count:  1
lmm_stripe_size:   4194304
lmm_pattern:       raid0
lmm_layout_gen:    0
lmm_stripe_offset: 0
	obdidx		 objid		 objid		 group
	     0	           110	         0x6e	   0x280000401

2+0 records in
2+0 records out
2097152 bytes (2.1 MB) copied, 0.0270149 s, 77.6 MB/s
[0x240000402:0x4:0x0]
/mnt/lustre/d18b.sanity-lfsck/a2/f2
lmm_stripe_count:  2
lmm_stripe_size:   1048576
lmm_pattern:       raid0
lmm_layout_gen:    0
lmm_stripe_offset: 1
	obdidx		 objid		 objid		 group
	     1	             3	          0x3	   0x2c0000400
	     0	             3	          0x3	   0x280000400

2+0 records in
2+0 records out
2097152 bytes (2.1 MB) copied, 0.0370265 s, 56.6 MB/s
[0x200000402:0x76:0x0]
/mnt/lustre/d18b.sanity-lfsck/f3
  lcm_layout_gen:    3
  lcm_mirror_count:  1
  lcm_entry_count:   2
    lcme_id:             1
    lcme_mirror_id:      0
    lcme_flags:          init
    lcme_extent.e_start: 0
    lcme_extent.e_end:   1048576
      lmm_stripe_count:  1
      lmm_stripe_size:   1048576
      lmm_pattern:       raid0
      lmm_layout_gen:    0
      lmm_stripe_offset: 0
      lmm_objects:
      -   0: { l_ost_idx:   0, l_fid: [0x280000401:0x6f:0x0] }

    lcme_id:             2
    lcme_mirror_id:      0
    lcme_flags:          init
    lcme_extent.e_start: 1048576
    lcme_extent.e_end:   EOF
      lmm_stripe_count:  1
      lmm_stripe_size:   1048576
      lmm_pattern:       raid0
      lmm_layout_gen:    0
      lmm_stripe_offset: 1
      lmm_objects:
      -   0: { l_ost_idx:   1, l_fid: [0x2c0000401:0x3:0x0] }

Inject failure, to simulate the case of missing the MDT-object
fail_loc=0x1616
fail_loc=0x1616
fail_loc=0
fail_loc=0
Trigger layout LFSCK --dryrun to find out orphan OST-object
Started LFSCK on the device lustre-MDT0000: scrub layout
Trigger layout LFSCK on all devices to find out orphan OST-object
Started LFSCK on the device lustre-MDT0000: scrub layout
Move the files from ./lustre/lost+found/MDTxxxx to namespace
[0x200000402:0x75:0x0]
/mnt/lustre/d18b.sanity-lfsck/a1/f1
lmm_stripe_count:  1
lmm_stripe_size:   4194304
lmm_pattern:       raid0
lmm_layout_gen:    1
lmm_stripe_offset: 0
	obdidx		 objid		 objid		 group
	     0	           110	         0x6e	   0x280000401

[0x240000402:0x4:0x0]
/mnt/lustre/d18b.sanity-lfsck/a2/f2
lmm_stripe_count:  2
lmm_stripe_size:   1048576
lmm_pattern:       raid0
lmm_layout_gen:    2
lmm_stripe_offset: 1
	obdidx		 objid		 objid		 group
	     1	             3	          0x3	   0x2c0000400
	     0	             3	          0x3	   0x280000400

[0x200000402:0x76:0x0]
/mnt/lustre/d18b.sanity-lfsck/f3
  lcm_layout_gen:    1
  lcm_mirror_count:  1
  lcm_entry_count:   2
    lcme_id:             1
    lcme_mirror_id:      0
    lcme_flags:          init
    lcme_extent.e_start: 0
    lcme_extent.e_end:   1048576
      lmm_stripe_count:  1
      lmm_stripe_size:   1048576
      lmm_pattern:       raid0
      lmm_layout_gen:    1
      lmm_stripe_offset: 0
      lmm_objects:
      -   0: { l_ost_idx:   0, l_fid: [0x280000401:0x6f:0x0] }

    lcme_id:             2
    lcme_mirror_id:      0
    lcme_flags:          init
    lcme_extent.e_start: 1048576
    lcme_extent.e_end:   EOF
      lmm_stripe_count:  1
      lmm_stripe_size:   1048576
      lmm_pattern:       raid0
      lmm_layout_gen:    1
      lmm_stripe_offset: 1
      lmm_objects:
      -   0: { l_ost_idx:   1, l_fid: [0x2c0000401:0x3:0x0] }

The file size should be correct after layout LFSCK scanning