We use this filesystem for project and code storage without any backup. Users need to write these files manually to the tape if they need it a backup uptime 10:32:41 up 13 days, 14 min, 1 user, load average: 0.29, 0.46, 0.46 lctl get_param mds.*.stats | egrep "open|close|rename|link|attr|sync" open 25405022 samples [reqs] close 9065872 samples [reqs] unlink 93666 samples [reqs] rename 12657 samples [reqs] getattr 178749678 samples [reqs] setattr 109256 samples [reqs] sync 121422 samples [reqs] lfs df output: UUID 1K-blocks Used Available Use% Mounted on lustre-MDT0000_UUID 110092260 3352428 106739832 3% /lustre[MDT:0] lustre-OST0000_UUID 2884114628 2501561636 382552892 86% /lustre[OST:0] lustre-OST0001_UUID 2884114628 2527433380 356681044 87% /lustre[OST:1] lustre-OST0002_UUID 2884114628 2498952164 385162388 86% /lustre[OST:2] lustre-OST0003_UUID 2884114628 2490509464 393605056 86% /lustre[OST:3] lustre-OST0004_UUID 2884114628 2504063232 380051304 86% /lustre[OST:4] lustre-OST0005_UUID 2884114628 2489176372 394938176 86% /lustre[OST:5] lustre-OST0006_UUID 2884114628 2530726436 353386688 87% /lustre[OST:6] lustre-OST0007_UUID 2884114628 2486248244 397866316 86% /lustre[OST:7] lustre-OST0008_UUID 2884114628 2580039988 304073528 89% /lustre[OST:8] lustre-OST0009_UUID 2884085444 2409236584 474848852 83% /lustre[OST:9] lustre-OST000a_UUID 2884110020 2524712320 359397596 87% /lustre[OST:10] lustre-OST000b_UUID 2884110020 2471606976 412502964 85% /lustre[OST:11] lustre-OST000c_UUID 2884114628 2506496588 377617960 86% /lustre[OST:12] lustre-OST000d_UUID 2884114628 2386694152 497420256 82% /lustre[OST:13] lustre-OST000e_UUID 2884114628 2512284264 371808772 87% /lustre[OST:14] lustre-OST000f_UUID 2884114628 2508435980 375678576 86% /lustre[OST:15] lustre-OST0010_UUID 2884114628 2528948392 355138500 87% /lustre[OST:16] lustre-OST0011_UUID 2884114628 2475264400 408850124 85% /lustre[OST:17] lustre-OST0012_UUID 2884114628 2477997436 406117108 85% /lustre[OST:18] lustre-OST0013_UUID 2884114628 2411330600 472783940 83% /lustre[OST:19] lustre-OST0014_UUID 2884114628 2452501392 431613096 85% /lustre[OST:20] lustre-OST0015_UUID 2884110020 2425470236 458632292 84% /lustre[OST:21] lustre-OST0016_UUID 2884110020 2506874060 377235872 86% /lustre[OST:22] lustre-OST0017_UUID 2884110020 2526339148 357770776 87% /lustre[OST:23] lustre-OST0018_UUID 2884114628 2494217480 389897076 86% /lustre[OST:24] lustre-OST0019_UUID 2884114628 2550866328 333230572 88% /lustre[OST:25] lustre-OST001a_UUID 2884114628 2392512412 491602136 82% /lustre[OST:26] lustre-OST001b_UUID 2884114628 2546456908 337631132 88% /lustre[OST:27] lustre-OST001c_UUID 2884114628 2433956940 450157616 84% /lustre[OST:28] lustre-OST001d_UUID 2884114628 2518257840 365856700 87% /lustre[OST:29] lustre-OST001e_UUID 2884114628 2386002076 498112548 82% /lustre[OST:30] lustre-OST001f_UUID 2884114628 2551645032 332464392 88% /lustre[OST:31] lustre-OST0020_UUID 2884110020 2508140676 375969260 86% /lustre[OST:32] lustre-OST0021_UUID 2884110020 2480057388 404052560 85% /lustre[OST:33] lustre-OST0022_UUID 2884110020 2523920168 360189768 87% /lustre[OST:34] lustre-OST0023_UUID 2884114628 2483034600 401079940 86% /lustre[OST:35] lustre-OST0024_UUID 2883950796 2447210584 436740112 84% /lustre[OST:36] lustre-OST0025_UUID 2883950796 2516207332 367743360 87% /lustre[OST:37] lustre-OST0026_UUID 2883950796 2437923532 446027176 84% /lustre[OST:38] lustre-OST0027_UUID 2883950796 2476331728 407618984 85% /lustre[OST:39] lustre-OST0028_UUID 2883950796 2432972916 450977800 84% /lustre[OST:40] lustre-OST0029_UUID 2883950796 2460940916 423009752 85% /lustre[OST:41] lustre-OST002a_UUID 2883950796 2468612140 415338568 85% /lustre[OST:42] lustre-OST002b_UUID 2883950796 2458854996 425095716 85% /lustre[OST:43] lustre-OST002c_UUID 2883950796 2513629572 370321132 87% /lustre[OST:44] lustre-OST002d_UUID 2883950796 2363972180 519978512 81% /lustre[OST:45] lustre-OST002e_UUID 2883950796 2565237744 318712004 88% /lustre[OST:46] lustre-OST002f_UUID 2883950796 2459814044 424136640 85% /lustre[OST:47] filesystem summary: 138435470112 119203678976 19231677532 86% /lustre 'lfs df -i' output: UUID Inodes IUsed IFree IUse% Mounted on lustre-MDT0000_UUID 31457280 21307244 10150036 67% /lustre[MDT:0] lustre-OST0000_UUID 96011367 373119 95638248 0% /lustre[OST:0] lustre-OST0001_UUID 89519754 349443 89170311 0% /lustre[OST:1] lustre-OST0002_UUID 96636795 346179 96290616 0% /lustre[OST:2] lustre-OST0003_UUID 98732018 330727 98401291 0% /lustre[OST:3] lustre-OST0004_UUID 95343096 330247 95012849 0% /lustre[OST:4] lustre-OST0005_UUID 99061693 327130 98734563 0% /lustre[OST:5] lustre-OST0006_UUID 88716029 368981 88347048 0% /lustre[OST:6] lustre-OST0007_UUID 99842063 375467 99466596 0% /lustre[OST:7] lustre-OST0008_UUID 76312606 293948 76018658 0% /lustre[OST:8] lustre-OST0009_UUID 119025859 313645 118712214 0% /lustre[OST:9] lustre-OST000a_UUID 90165802 316377 89849425 0% /lustre[OST:10] lustre-OST000b_UUID 103444857 319102 103125755 0% /lustre[OST:11] lustre-OST000c_UUID 94650672 246165 94404507 0% /lustre[OST:12] lustre-OST000d_UUID 124683131 328012 124355119 0% /lustre[OST:13] lustre-OST000e_UUID 93312935 355345 92957590 0% /lustre[OST:14] lustre-OST000f_UUID 94242336 322674 93919662 0% /lustre[OST:15] lustre-OST0010_UUID 89125796 334243 88791553 0% /lustre[OST:16] lustre-OST0011_UUID 102566152 353598 102212554 0% /lustre[OST:17] lustre-OST0012_UUID 101814880 285582 101529298 0% /lustre[OST:18] lustre-OST0013_UUID 118530077 334070 118196007 0% /lustre[OST:19] lustre-OST0014_UUID 108236231 332922 107903309 0% /lustre[OST:20] lustre-OST0015_UUID 114429201 330920 114098281 0% /lustre[OST:21] lustre-OST0016_UUID 94649031 340041 94308990 0% /lustre[OST:22] lustre-OST0017_UUID 89793722 351004 89442718 0% /lustre[OST:23] lustre-OST0018_UUID 97915782 441495 97474287 0% /lustre[OST:24] lustre-OST0019_UUID 83744982 432907 83312075 0% /lustre[OST:25] lustre-OST001a_UUID 123338441 437889 122900552 0% /lustre[OST:26] lustre-OST001b_UUID 84867995 453565 84414430 0% /lustre[OST:27] lustre-OST001c_UUID 112988355 448933 112539422 0% /lustre[OST:28] lustre-OST001d_UUID 91907484 443287 91464197 0% /lustre[OST:29] lustre-OST001e_UUID 124982574 454436 124528138 0% /lustre[OST:30] lustre-OST001f_UUID 83550431 433032 83117399 0% /lustre[OST:31] lustre-OST0020_UUID 94407277 414941 93992336 0% /lustre[OST:32] lustre-OST0021_UUID 101467596 454438 101013158 0% /lustre[OST:33] lustre-OST0022_UUID 90505148 457685 90047463 0% /lustre[OST:34] lustre-OST0023_UUID 100697142 427135 100270007 0% /lustre[OST:35] lustre-OST0024_UUID 109852270 667217 109185053 0% /lustre[OST:36] lustre-OST0025_UUID 92594348 658482 91935866 0% /lustre[OST:37] lustre-OST0026_UUID 112144143 637327 111506816 0% /lustre[OST:38] lustre-OST0027_UUID 102548080 643313 101904767 0% /lustre[OST:39] lustre-OST0028_UUID 113378346 633876 112744470 0% /lustre[OST:40] lustre-OST0029_UUID 106409522 657053 105752469 0% /lustre[OST:41] lustre-OST002a_UUID 104465812 631148 103834664 0% /lustre[OST:42] lustre-OST002b_UUID 106921742 647792 106273950 0% /lustre[OST:43] lustre-OST002c_UUID 93233739 653433 92580306 0% /lustre[OST:44] lustre-OST002d_UUID 130641098 646444 129994654 0% /lustre[OST:45] lustre-OST002e_UUID 80262443 584180 79678263 0% /lustre[OST:46] lustre-OST002f_UUID 106696994 662808 106034186 0% /lustre[OST:47] filesystem summary: 31457280 21307244 10150036 67% /lustre