[Lustre-devel] [Lustre-discuss] Research on filesystem metadata operation distribution

Mark Nelson mark at msi.umn.edu
Thu Apr 21 14:47:22 PDT 2011


Hi Andreas,

Here are the statistics for our current lustre storage as requested. 
This filesystem is used for scratch on a ~8700 core cluster.

> [root at mds ~]# lctl get_param mds.*.stats | egrep "open|close|rename|link|attr|sync"
> open                      52365106 samples [reqs]
> close                     26309366 samples [reqs]
> link                      164 samples [reqs]
> unlink                    4199061 samples [reqs]
> rename                    605499 samples [reqs]
> getattr                   204467294 samples [reqs]
> setattr                   6947314 samples [reqs]
> getxattr                  1211618173 samples [reqs]
> sync                      2399 samples [reqs]

> mark at node1083:~> lfs df
> UUID                 1K-blocks      Used Available  Use% Mounted on
> lustre-MDT0000_UUID  2446151592   7290552 2299069836    0% /scratch1[MDT:0]
> lustre-OST0000_UUID  2850686364 2260170480 445708680   79% /scratch1[OST:0]
> lustre-OST0001_UUID  2850686364 2360436928 345415236   82% /scratch1[OST:1]
> lustre-OST0002_UUID  2850686364 2301852200 404026800   80% /scratch1[OST:2]
> lustre-OST0003_UUID  2850686364 2297681284 408197928   80% /scratch1[OST:3]
> lustre-OST0004_UUID  2850686364 2268630672 437220700   79% /scratch1[OST:4]
> lustre-OST0005_UUID  2850686364 2352652832 353226340   82% /scratch1[OST:5]
> lustre-OST0006_UUID  2850686364 2256628780 449250944   79% /scratch1[OST:6]
> lustre-OST0007_UUID  2850686364 2239905176 465895280   78% /scratch1[OST:7]
> lustre-OST0008_UUID  2850686364 2256707044 449145120   79% /scratch1[OST:8]
> lustre-OST0009_UUID  2850686364 2318356564 387467160   81% /scratch1[OST:9]
> lustre-OST000a_UUID  2850686364 2246170292 459654224   78% /scratch1[OST:10]
> lustre-OST000b_UUID  2850686364 2289467904 416357844   80% /scratch1[OST:11]
> lustre-OST000c_UUID  2850686364 2267773568 438077736   79% /scratch1[OST:12]
> lustre-OST000d_UUID  2850686364 2370072892 335806104   83% /scratch1[OST:13]
> lustre-OST000e_UUID  2850686364 2373615788 332262332   83% /scratch1[OST:14]
> lustre-OST000f_UUID  2850686364 2268974064 436784684   79% /scratch1[OST:15]
> lustre-OST0010_UUID  2850686364 2254083524 451795496   79% /scratch1[OST:16]
> lustre-OST0011_UUID  2850686364 2305220652 400636828   80% /scratch1[OST:17]
> lustre-OST0012_UUID  2850686364 2289688148 416189404   80% /scratch1[OST:18]
> lustre-OST0013_UUID  2850686364 2248032400 457846596   78% /scratch1[OST:19]
> lustre-OST0014_UUID  2850686364 2348553416 357297956   82% /scratch1[OST:20]
> lustre-OST0015_UUID  2850686364 2336745344 369133676   81% /scratch1[OST:21]
> lustre-OST0016_UUID  2850686364 2286710092 419095976   80% /scratch1[OST:22]
> lustre-OST0017_UUID  2850686364 2258930636 446948364   79% /scratch1[OST:23]
> lustre-OST0018_UUID  2850686364 2394833760 311045260   84% /scratch1[OST:24]
> lustre-OST0019_UUID  2850686364 2315306792 390571460   81% /scratch1[OST:25]
> lustre-OST001a_UUID  2850686364 2300589812 405289220   80% /scratch1[OST:26]
> lustre-OST001b_UUID  2850686364 2296248192 409542792   80% /scratch1[OST:27]
> lustre-OST001c_UUID  2850686364 2306921556 398957656   80% /scratch1[OST:28]
> lustre-OST001d_UUID  2850686364 2277275716 428541804   79% /scratch1[OST:29]
> lustre-OST001e_UUID  2850686364 2290738376 415141384   80% /scratch1[OST:30]
> lustre-OST001f_UUID  2850686364 2358853432 347025588   82% /scratch1[OST:31]
> lustre-OST0020_UUID  2850686364 2164837628 541041392   75% /scratch1[OST:32]
> lustre-OST0021_UUID  2850686364 2250094264 455757108   78% /scratch1[OST:33]
> lustre-OST0022_UUID  2850686364 2318377076 387474296   81% /scratch1[OST:34]
> lustre-OST0023_UUID  2850686364 2287996640 417827084   80% /scratch1[OST:35]
> lustre-OST0024_UUID  2850686364 2266655604 439213268   79% /scratch1[OST:36]
> lustre-OST0025_UUID  2850686364 2196015760 509804940   77% /scratch1[OST:37]
> lustre-OST0026_UUID  2850686364 2326710900 379141252   81% /scratch1[OST:38]
> lustre-OST0027_UUID  2850686364 2263182244 442696788   79% /scratch1[OST:39]
> lustre-OST0028_UUID  2850686364 2281411520 424466108   80% /scratch1[OST:40]
> lustre-OST0029_UUID  2850686364 2253024788 452854156   79% /scratch1[OST:41]
> lustre-OST002a_UUID  2850686364 2265263264 440614844   79% /scratch1[OST:42]
> lustre-OST002b_UUID  2850686364 2358109672 347769300   82% /scratch1[OST:43]
> lustre-OST002c_UUID  2850686364 2246612120 459253300   78% /scratch1[OST:44]
> lustre-OST002d_UUID  2850686364 2315081464 390671376   81% /scratch1[OST:45]
> lustre-OST002e_UUID  2850686364 2151456488 554423308   75% /scratch1[OST:46]
> lustre-OST002f_UUID  2850686364 2276389044 429401272   79% /scratch1[OST:47]
>
> filesystem summary:  136832945472 109819046792 20061966364   80% /scratch1

> mark at node1083:~> lfs df -i
> UUID                    Inodes     IUsed     IFree IUse% Mounted on
> lustre-MDT0000_UUID  623065492  13350254 609715238    2% /scratch1[MDT:0]
> lustre-OST0000_UUID  147951373    356246 147595127    0% /scratch1[OST:0]
> lustre-OST0001_UUID  122874520    348299 122526221    0% /scratch1[OST:1]
> lustre-OST0002_UUID  137525462    310049 137215413    0% /scratch1[OST:2]
> lustre-OST0003_UUID  138550809    340738 138210071    0% /scratch1[OST:3]
> lustre-OST0004_UUID  145867558    363872 145503686    0% /scratch1[OST:4]
> lustre-OST0005_UUID  124846336    353476 124492860    0% /scratch1[OST:5]
> lustre-OST0006_UUID  148769303    334806 148434497    0% /scratch1[OST:6]
> lustre-OST0007_UUID  153043111    338572 152704539    0% /scratch1[OST:7]
> lustre-OST0008_UUID  148836688    343526 148493162    0% /scratch1[OST:8]
> lustre-OST0009_UUID  133406354    332875 133073479    0% /scratch1[OST:9]
> lustre-OST000a_UUID  151428889    318410 151110479    0% /scratch1[OST:10]
> lustre-OST000b_UUID  140643612    370513 140273099    0% /scratch1[OST:11]
> lustre-OST000c_UUID  146024187    317395 145706792    0% /scratch1[OST:12]
> lustre-OST000d_UUID  120508125    334975 120173150    0% /scratch1[OST:13]
> lustre-OST000e_UUID  119591403    335426 119255977    0% /scratch1[OST:14]
> lustre-OST000f_UUID  145755615    354062 145401553    0% /scratch1[OST:15]
> lustre-OST0010_UUID  149476374    334318 149142056    0% /scratch1[OST:16]
> lustre-OST0011_UUID  136596942    304167 136292775    0% /scratch1[OST:17]
> lustre-OST0012_UUID  140548883    326959 140221924    0% /scratch1[OST:18]
> lustre-OST0013_UUID  150984278    329164 150655114    0% /scratch1[OST:19]
> lustre-OST0014_UUID  125850214    335954 125514260    0% /scratch1[OST:20]
> lustre-OST0015_UUID  128803314    340503 128462811    0% /scratch1[OST:21]
> lustre-OST0016_UUID  141332100    356012 140976088    0% /scratch1[OST:22]
> lustre-OST0017_UUID  148282098    332665 147949433    0% /scratch1[OST:23]
> lustre-OST0018_UUID  114305646    341206 113964440    0% /scratch1[OST:24]
> lustre-OST0019_UUID  134162367    320108 133842259    0% /scratch1[OST:25]
> lustre-OST001a_UUID  137846405    346482 137499923    0% /scratch1[OST:26]
> lustre-OST001b_UUID  138954376    354556 138599820    0% /scratch1[OST:27]
> lustre-OST001c_UUID  136261269    314506 135946763    0% /scratch1[OST:28]
> lustre-OST001d_UUID  143665519    346163 143319356    0% /scratch1[OST:29]
> lustre-OST001e_UUID  140292861    310260 139982601    0% /scratch1[OST:30]
> lustre-OST001f_UUID  123343915    374877 122969038    0% /scratch1[OST:31]
> lustre-OST0020_UUID  171817157    349887 171467270    0% /scratch1[OST:32]
> lustre-OST0021_UUID  150499898    352977 150146921    0% /scratch1[OST:33]
> lustre-OST0022_UUID  133410450    335784 133074666    0% /scratch1[OST:34]
> lustre-OST0023_UUID  140965613    325669 140639944    0% /scratch1[OST:35]
> lustre-OST0024_UUID  146302421    339776 145962645    0% /scratch1[OST:36]
> lustre-OST0025_UUID  163987206    343710 163643496    0% /scratch1[OST:37]
> lustre-OST0026_UUID  131322985    361117 130961868    0% /scratch1[OST:38]
> lustre-OST0027_UUID  147155706    296609 146859097    0% /scratch1[OST:39]
> lustre-OST0028_UUID  142674349    344009 142330340    0% /scratch1[OST:40]
> lustre-OST0029_UUID  149723181    332111 149391070    0% /scratch1[OST:41]
> lustre-OST002a_UUID  146671256    320469 146350787    0% /scratch1[OST:42]
> lustre-OST002b_UUID  123435148    350587 123084561    0% /scratch1[OST:43]
> lustre-OST002c_UUID  151317772    343224 150974548    0% /scratch1[OST:44]
> lustre-OST002d_UUID  134212577    353558 133859019    0% /scratch1[OST:45]
> lustre-OST002e_UUID  175115293    326239 174789054    0% /scratch1[OST:46]
> lustre-OST002f_UUID  143864174    326506 143537668    0% /scratch1[OST:47]
>
> filesystem summary:  623065492  13350254 609715238    2% /scratch1

-- 
Mark Nelson, HPC Systems Administrator
Minnesota Supercomputing Institute
Phone: (612)626-4479
Email: mark at msi.umn.edu



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