== sanity test 51b: exceed 64k subdirectory nlink limit on create, verify unlink ========================================================== 22:07:22 (1761962842)
UUID                   1K-blocks        Used   Available Use%  Mounted on
lustre-MDT0000_UUID      2210688        3200     2205440   1%  /mnt/lustre[MDT:0]
lustre-OST0000_UUID      3771392        3072     3766272   1%  /mnt/lustre[OST:0]
lustre-OST0001_UUID      3771392        3072     3766272   1%  /mnt/lustre[OST:1]

filesystem_summary:      7542784        6144     7532544   1%  /mnt/lustre

UUID                      Inodes       IUsed       IFree IUse%  Mounted on
lustre-MDT0000_UUID       499523         333      499190   1%  /mnt/lustre[MDT:0]
lustre-OST0000_UUID       118152         392      117760   1%  /mnt/lustre[OST:0]
lustre-OST0001_UUID       118152         392      117760   1%  /mnt/lustre[OST:1]

filesystem_summary:       235853         333      235520   1%  /mnt/lustre

 - mkdir 6284 (time 1761962853.98 total 10.00 last 628.34)
 - mkdir 10000 (time 1761962860.01 total 16.03 last 615.90)
 - mkdir 16003 (time 1761962870.01 total 26.04 last 600.23)
 - mkdir 20000 (time 1761962876.82 total 32.84 last 587.08)
 - mkdir 25745 (time 1761962886.82 total 42.84 last 574.47)
 - mkdir 30000 (time 1761962894.38 total 50.40 last 563.16)
 - mkdir 35814 (time 1761962904.38 total 60.40 last 581.36)
 - mkdir 40000 (time 1761962911.28 total 67.30 last 606.88)
 - mkdir 45835 (time 1761962921.28 total 77.30 last 583.49)
 - mkdir 50000 (time 1761962930.28 total 86.30 last 462.49)
 - mkdir 55439 (time 1761962940.28 total 96.30 last 543.89)
 - mkdir 60000 (time 1761962949.20 total 105.22 last 511.51)
 - mkdir 65617 (time 1761962959.24 total 115.26 last 559.43)
total: 65636 mkdir in 115.29 seconds: 569.33 ops/second
UUID                   1K-blocks        Used   Available Use%  Mounted on
lustre-MDT0000_UUID      2210304      752512     1455744  35%  /mnt/lustre[MDT:0]
lustre-OST0000_UUID      3771392        3072     3766272   1%  /mnt/lustre[OST:0]
lustre-OST0001_UUID      3771392        3072     3766272   1%  /mnt/lustre[OST:1]

filesystem_summary:      7542784        6144     7532544   1%  /mnt/lustre

UUID                      Inodes       IUsed       IFree IUse%  Mounted on
lustre-MDT0000_UUID       198703       65950      132753  34%  /mnt/lustre[MDT:0]
lustre-OST0000_UUID       118151         391      117760   1%  /mnt/lustre[OST:0]
lustre-OST0001_UUID       118152         392      117760   1%  /mnt/lustre[OST:1]

filesystem_summary:       198703       65950      132753  34%  /mnt/lustre

nlink before: 65638, created before: 65636
 - unlinked 0 (time 1761962961 ; total 0 ; last 0)
 - unlinked 10000 (time 1761962987 ; total 26 ; last 26)
 - unlinked 20000 (time 1761963014 ; total 53 ; last 27)
 - unlinked 30000 (time 1761963039 ; total 78 ; last 25)
 - unlinked 40000 (time 1761963064 ; total 103 ; last 25)
 - unlinked 50000 (time 1761963088 ; total 127 ; last 24)
 - unlinked 60000 (time 1761963113 ; total 152 ; last 25)
total: 65536 unlinks in 165 seconds: 397.187866 unlinks/second
nlink between: 102
 - unlinked 0 (time 1761963127 ; total 0 ; last 0)
total: 100 unlinks in 0 seconds: inf unlinks/second
nlink after: 2
UUID                   1K-blocks        Used   Available Use%  Mounted on
lustre-MDT0000_UUID      2209920        8064     2199808   1%  /mnt/lustre[MDT:0]
lustre-OST0000_UUID      3771392        3072     3766272   1%  /mnt/lustre[OST:0]
lustre-OST0001_UUID      3771392        3072     3766272   1%  /mnt/lustre[OST:1]

filesystem_summary:      7542784        6144     7532544   1%  /mnt/lustre

UUID                      Inodes       IUsed       IFree IUse%  Mounted on
lustre-MDT0000_UUID       408693         415      408278   1%  /mnt/lustre[MDT:0]
lustre-OST0000_UUID       118151         391      117760   1%  /mnt/lustre[OST:0]
lustre-OST0001_UUID       118152         392      117760   1%  /mnt/lustre[OST:1]

filesystem_summary:       235935         415      235520   1%  /mnt/lustre