== sanity-lfsck test 18a: Find out orphan OST-object and repair it (1) ========================================================== 05:03:13 (1713344593) ##### The target MDT-object is there, but related stripe information is lost or partly lost. The LFSCK should regenerate the missing layout EA entries. ##### 2+0 records in 2+0 records out 2097152 bytes (2.1 MB) copied, 0.027095 s, 77.4 MB/s [0x200003ab1:0x80:0x0] /mnt/lustre/d18a.sanity-lfsck/a1/f1 lmm_stripe_count: 1 lmm_stripe_size: 1048576 lmm_pattern: raid0 lmm_layout_gen: 0 lmm_stripe_offset: 0 obdidx objid objid group 0 3763 0xeb3 0 2+0 records in 2+0 records out 2097152 bytes (2.1 MB) copied, 0.0310626 s, 67.5 MB/s [0x240002340:0x2:0x0] /mnt/lustre/d18a.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 1 194 0xc2 0x2c0000400 0 226 0xe2 0x280000400 2+0 records in 2+0 records out 2097152 bytes (2.1 MB) copied, 0.0394854 s, 53.1 MB/s [0x200003ab1:0x82:0x0] /mnt/lustre/d18a.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: [0x100000000:0xeb4:0x0] } 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: [0x100010000:0xd04:0x0] } Inject failure, to make the MDT-object lost its layout EA fail_loc=0x1615 fail_loc=0x1615 fail_loc=0 fail_loc=0 The file size should be incorrect since layout EA is lost Trigger layout LFSCK on all devices to find out orphan OST-object Started LFSCK on the device lustre-MDT0000: scrub layout [0x200003ab1:0x80:0x0] /mnt/lustre/d18a.sanity-lfsck/a1/f1 lmm_stripe_count: 1 lmm_stripe_size: 1048576 lmm_pattern: raid0 lmm_layout_gen: 1 lmm_stripe_offset: 0 obdidx objid objid group 0 3763 0xeb3 0 [0x240002340:0x2:0x0] /mnt/lustre/d18a.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 1 194 0xc2 0x2c0000400 0 226 0xe2 0x280000400 [0x200003ab1:0x82:0x0] /mnt/lustre/d18a.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: [0x100000000:0xeb4:0x0] } 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: [0x100010000:0xd04:0x0] } The file size should be correct after layout LFSCK scanning