Enabling Science

PADS is a petabyte (10ˆ15-byte)-scale online storage server capable of sustained multi-gigabyte/s I/O performance, tightly integrated with a 9 teraflop/s computing resource and multi-gigabit/s local and wide area networks. Its hardware and associated software enables the reliable storage of, access to, and analysis of massive datasets by both local users and the national scientific community.











Disk Usage by Discipline in Terabytes
August 2009 September 2009 October 2009 November 2009 December 2009 January 2010
Mathematical and Physical Sciences 26.778100252151 26.778100252151 26.778100252151 26.778100252151 26.778100252151 26.778100252151 26.778100252151 26.778100252151 26.778100252151 26.778100252151 26.778100252151 26.778100252151 26.778100252151 26.778100252151 26.778100252151 26.778100252151 26.784718692303 26.784718692303 26.784718692303 26.784718692303 26.784718692303 26.784718692303 26.784718692303 26.784659385681 26.784659385681 26.784659385681 26.784659385681 26.784659385681 26.784659385681 26.784659385681 26.784659385681 26.784659385681 26.784659385681 26.784659385681 26.784659385681 26.784659385681 26.784659385681 26.784659385681 26.784659385681 26.78466039896 26.78466039896 26.78466039896 26.78466039896 26.78466039896 27.043416649103 27.043416649103 27.043416649103 27.043416649103 27.043416649103 27.043416649103 27.043415695429 27.043415695429 27.043415695429 27.043415695429 27.043415695429 27.044226020575 27.044226020575 27.044226020575 27.044226020575 27.044226020575 27.044226020575 27.044226020575 27.70122307539 27.860782772303 27.861247807741 27.861459642649 27.872825652361 27.872825652361 27.872825652361 27.872818976641 27.872813552618 27.872813552618 27.872813552618 27.872813552618 27.872814506292 27.872814506292 27.872847110033 27.873786658049 27.873786658049 27.873786658049 27.873786658049 27.873786658049 27.873792737722 27.873792737722 27.873792737722 27.873792737722 27.873792737722 27.873792737722 27.873792737722 27.873792737722 27.873792737722 27.873792737722 27.88594430685 27.88594430685 27.885944336653 28.014780014753 28.014780014753 28.015319913626 28.016043543816 28.016153424978 28.016153424978 28.022035866976 28.022035866976 28.022035866976 28.022035866976 28.022035866976 28.02195957303 28.021959602833 28.021951973438 28.021951973438 28.021951973438 28.021970152855 28.02198112011 28.151431471109 28.170345932245 28.198264956474 28.207008481026 28.207004666328 28.207060933113 28.207061886787 28.207061976194 28.207061976194 28.207061976194 28.207061976194 28.207061976194 28.227371156216 28.255699038506 28.263803362846 28.263803362846 28.263803362846 28.263803362846 28.263803362846 28.264832735062 28.264833688736 28.266029775143 28.266030788422 28.266030788422 28.303060740232 28.506911158562 28.517861187458 28.517861187458 28.517861187458 28.517861187458 28.517861187458 28.522964864969 28.522964864969 28.639924407005 28.94261020422 29.403556168079 29.711162120104 29.824104547501 29.824104547501 29.824104547501 29.824104547501 29.824104547501 29.824104547501 29.824104547501 29.82811242342 29.839462608099 29.867575019598 29.880626499653 30.032812416553 30.034924775362 30.034924775362 30.034924775362 30.034953027964 30.072760105133 30.072760105133 30.294630408287 30.429829150438 30.652540653944 30.730777412653 30.83132609725
Computer and Information Science and Engineering 27.984351336956 28.001198709011 28.001288563013 28.001288563013 28.001288563013 28.001239746809 28.001262307167 28.001239746809 27.958620727062 27.958623230457 27.958617448807 27.958619356155 27.962431520224 27.962431520224 27.962186425924 27.962186425924 27.968804866076 27.968804866076 27.968804866076 27.968804866076 27.968804866076 27.968804895878 27.968804895878 27.968745589256 27.983730018139 27.983730018139 27.996265530586 27.996265530586 27.996265530586 27.996266484261 27.996266484261 27.996266484261 27.996266484261 27.996266484261 27.996266484261 27.996266484261 27.996266484261 27.996266484261 27.996266484261 27.99626749754 27.99626749754 27.99626749754 27.99626749754 27.99626749754 28.255023747683 28.255023747683 28.255023747683 28.255023747683 28.255023747683 28.255023747683 28.255022794008 28.255224853754 28.264273196459 28.26840788126 28.27033418417 28.272951185703 28.272949278355 28.277228862047 28.277228862047 28.277228862047 28.277228862047 28.277228862047 28.934270441532 29.093768805265 29.095213890076 29.095454335213 29.106906563044 29.106948703527 29.106956332922 29.158181428909 29.184117048979 29.184116095304 29.184113234282 29.184135138988 29.184157073498 29.184081733227 29.184111475945 29.185273230076 29.185273230076 29.185273230076 29.185273230076 29.185273230076 29.18527930975 29.18527930975 29.185278356075 29.185278356075 29.185278356075 29.185277402401 29.185277402401 29.185277402401 29.185277402401 29.185277402401 29.197429209948 29.197429209948 29.19742923975 29.32626491785 29.32626491785 29.326805919409 29.327529549599 29.327638477087 29.327637523413 29.337546646595 29.348254472017 29.348257482052 29.348255574703 29.348241388798 29.343814492226 29.343810856342 29.343803226948 29.343803226948 29.343803226948 29.34382045269 29.34383046627 29.473279863596 29.492194324732 29.520108580589 29.528848290443 29.528844475746 29.528899788857 29.528901696205 29.528901785612 29.528901785612 29.528900831938 29.528900831938 29.528900831938 29.549212872982 29.577540755272 29.590016752481 29.590016752481 29.590016752481 29.590016752481 29.590016752481 29.591046124697 29.591047078371 29.592243164778 29.592244178057 29.592244178057 29.629274129868 29.833123594522 29.844073623419 29.844072669744 29.844072669744 29.844072669744 29.844072669744 29.849176347256 29.849176347256 29.966134935617 30.268817871809 30.72976192832 31.037367880344 31.150310307741 31.150308400393 31.15030553937 31.15030553937 31.15030553937 31.15030553937 31.15030553937 31.154313415289 31.165663599968 31.193776011467 31.206827491522 31.359011501074 31.361480474472 31.361480474472 31.361480474472 31.361505866051 31.39931294322 31.399311989546 31.644715040922 31.779913783073 42.358221948147 42.436456799507 42.704966962337
Biological Sciences 35.22405898571 35.240906357765 35.240996211767 35.240996211767 35.240996211767 36.176664918661 36.767448961735 37.142154842615 37.099535822868 37.099538326263 37.101624548435 37.101626455784 37.105438619852 37.110882729292 37.274240106344 38.334302097559 38.34092053771 38.34092053771 38.34172603488 38.34172603488 38.34172603488 38.341724157333 38.342547237873 38.342488884926 38.35756829381 38.358054667711 38.374742895365 38.39016315341 38.390169888735 38.391013592482 38.402860492468 38.041731327772 38.041731327772 38.041731327772 38.04185116291 38.04198205471 38.042046129704 38.042218863964 38.043977558613 38.054043203592 38.05407628417 38.058065265417 38.061002343893 38.061036974192 38.319404035807 38.325450539589 38.325777173042 38.326018542051 38.326289713383 38.331774264574 38.332224935293 38.369485735893 38.405404001474 38.409478604794 38.411404907703 38.416682362556 38.418003350496 38.474494218826 38.477573692799 38.517447113991 38.517444252968 38.517444252968 39.174475938082 39.333661019802 39.335337400436 39.335578083992 39.347407013178 39.347133487463 39.347141116858 39.398470789194 39.427985876799 39.428228527308 39.44235676527 39.444586068392 39.946217268705 40.656021296978 40.661540567875 40.689042448997 40.815630406141 40.817876338959 40.817876338959 40.817876338959 40.817882418633 40.845391362906 40.84625005722 40.87126994133 40.929302364588 40.932241111994 40.932241111994 40.932241111994 40.964609980583 41.008574217558 41.025962918997 41.03119251132 41.052116334438 41.180952012539 41.180952012539 41.27351424098 41.291125774384 41.302542835474 41.329362034798 41.454715162516 41.465422987938 41.465721607208 41.558059066534 41.577792257071 41.656135588884 41.661070585251 41.658745825291 41.708033919334 41.708034157753 41.708051383495 41.706139236689 41.852045476437 42.130474030972 42.267674654722 42.497323215008 42.825920701027 42.819834530354 42.82046598196 42.823845118284 42.824562847614 42.828435629606 42.853491574526 42.853515267372 42.906493484974 42.934821367264 42.947297900915 42.951304972172 42.947421967983 42.995673060417 43.024737209082 43.038128018379 43.113412350416 43.155131816864 43.210793703794 43.210798740387 43.249152630568 43.495571017265 43.51658308506 43.509259849787 43.514421164989 43.514421164989 43.514635026455 43.520788252354 43.508458733559 43.625199019909 44.214154243469 44.675062060356 44.982640355825 45.095582783222 45.960609287024 46.05904519558 46.282634079456 46.283896118402 46.283896118402 46.283896118402 46.287904977798 46.394264310598 46.425329118967 46.438501983881 46.642893522978 46.654725342989 46.65472638607 46.621448338032 46.740130156279 46.796933740377 46.843167066574 48.037304133177 48.181598454714 58.788624048233 58.889512449503 59.361452549696
Social, Behavioral and Economic Sciences 44.137938469648 44.15478682518 44.154876679182 44.154755562544 44.154574364424 45.09035089612 45.681123644114 46.055829972029 46.105745375156 46.10574889183 46.332171112299 46.358941555023 46.362751841545 46.367889821529 46.533000022173 47.623161375523 47.629779815674 47.629782259464 47.630709826946 47.630709826946 47.635863035917 47.80715996027 47.807982087135 47.808369636536 47.823450088501 47.824703216553 47.841391444206 47.856811702251 47.856818437576 47.857666909695 47.875752806664 47.514619827271 47.514619827271 47.534279793501 47.534399628639 47.534530520439 47.534594595432 47.536500930786 47.53844371438 47.54850935936 47.548545300961 47.552523881197 47.556805968285 47.557075232267 48.043694227934 48.049724519253 48.050051152706 48.050431340933 48.050702512264 48.056060224771 48.058578073978 48.095837920904 48.131754279137 48.132102578878 48.134028881788 48.139306545258 48.140555053949 48.197051644325 48.200343489647 48.240215957165 48.240194022655 48.240191161633 48.897011131048 49.056160926819 49.05781441927 49.058055102825 49.067368239164 49.064833551645 49.06484118104 49.116227000952 49.226624429226 49.226867079735 49.240988641977 49.244353830814 49.745869636536 50.454808682203 50.457204669714 50.487921744585 50.614503026009 50.616817593575 50.616817593575 50.616818547249 50.616824626923 50.644333571196 50.645198643208 50.670216619968 50.73279696703 50.735735714436 50.735735714436 50.735735714436 50.768101722002 50.812052547932 50.829441308975 50.834670007229 50.855593830347 50.984428554773 50.984428554773 51.073897123337 51.09150865674 51.102925717831 51.129736334085 51.255089461803 51.266644567251 51.266942232847 51.359261572361 51.378966152668 51.457308530807 51.4622425735 51.462030172348 51.511319220066 51.511309921741 51.511285185814 51.509390205145 51.655269742012 51.935508519411 52.072658598423 52.301986724138 52.630582302809 52.624495178461 52.625126630068 52.628538668156 52.629256397486 52.633129179478 52.658185124397 52.658208817244 52.711184173822 52.739512056112 52.751988589764 52.755986124277 52.752112656832 52.800358980894 52.829423129559 52.842812031507 52.918092548847 52.959808200598 53.015410959721 53.015415996313 53.053768932819 53.300180643797 53.321134537458 53.313795089722 53.318956404924 53.318956404924 53.31917026639 53.325323492289 53.313115358353 53.429855644703 54.018276810646 54.478844165802 54.786119192839 54.899061620235 55.763745754957 55.862181663513 56.085720956326 56.086961060762 56.086961060762 56.086961060762 56.090969920158 56.197430342436 56.28794297576 56.301123768091 56.532131522894 56.570615679026 56.570615768433 56.537340581417 56.65601837635 56.82372123003 56.869953602552 58.289786756039 58.435695588589 69.073837399483 69.175787866116 69.6495885849
Geosciences 44.281646817923 44.298495173454 44.298585027456 44.298463910818 44.298282712698 45.234059244394 45.824831992388 46.199538320303 46.249453723431 46.249457240105 46.475879460573 46.502649903297 46.506460189819 46.511598169804 46.676708370447 47.766869723797 47.773488163948 47.773490607738 47.77441817522 47.77441817522 47.779571384192 47.950868308544 47.95169043541 47.95207798481 47.967158436775 47.968411564827 47.98509979248 48.000520050526 48.000526785851 48.001375257969 48.019461154938 47.658328175545 47.658328175545 47.677988141775 47.678107976913 47.678238868713 47.678302943707 47.68020927906 47.682152062654 47.692217707634 47.692253649235 47.696232229471 47.700514316559 47.700783580542 48.187402576208 48.193432867527 48.19375950098 48.194139689207 48.194410860538 48.199768573046 48.202286422253 48.239546269178 48.275462627411 48.275810927153 48.277737230062 48.283014893532 48.284263402224 48.340759992599 48.344051837921 48.383924305439 48.38390237093 48.383899509907 49.040719479322 49.199869275093 49.201522767544 49.201763451099 49.211076587439 49.20854189992 49.208549529314 49.259934395552 49.370331823826 49.370574474335 49.384696036577 49.388061225414 49.889577031136 50.598516076803 50.600912064314 50.631629139185 50.758210420609 50.760524988174 50.760524988174 50.760525941849 50.760532021523 50.788040965796 50.788906037807 50.813924014568 50.876504361629 50.879443109035 50.879443109035 50.879443109035 50.911809116602 50.955759942532 50.973148703575 50.978377401829 50.999301224947 51.128135949373 51.128135949373 51.217604517937 51.23521605134 51.246633112431 51.273443728685 51.398797035217 51.410352140665 51.410649806261 51.502969145775 51.522673726082 51.601016104221 51.605950146914 51.605737745762 51.65502679348 51.655017495155 51.654992759228 51.653097778559 51.798977315426 52.079216092825 52.216366171837 52.445694297552 52.774289876223 52.768202751875 52.768834203482 52.77224624157 52.7729639709 52.776836752892 52.801892697811 52.801916390657 52.854891747236 52.883219629526 52.895696163177 52.899693697691 52.895820230246 52.944066554308 52.973130702972 52.986519604921 53.061800122261 53.103515774012 53.159118533134 53.159123569727 53.197476506233 53.443888217211 53.464842110872 53.457502663136 53.462663978338 53.462663978338 53.462877839804 53.469031065702 53.456822931767 53.573563218117 54.16198438406 54.622551739216 54.929826766253 55.042769193649 55.907453328371 56.005889236927 56.229428529739 56.230668634176 56.230668634176 56.230668634176 56.234677493572 56.34113791585 56.431650549173 56.444831341505 56.675839096308 56.714323252439 56.714323341846 56.681048154831 56.799725949764 56.967428803444 57.013661175966 58.433959066868 58.579867899418 69.218009710312 69.319960176945 69.793760895729
Education, Outreach and Training 44.960094839334 44.976943194866 44.977033048868 44.97691193223 44.97673073411 45.912507265806 46.5032800138 46.877986341715 46.927901744843 46.927905261517 47.154327481985 47.181097924709 47.184908211231 47.190046191216 47.355156391859 48.445317745209 48.45193618536 48.45193862915 48.452866196632 48.452866196632 48.458019405603 48.629316329956 48.630138456821 48.630526006222 48.645606458187 48.646859586239 48.663547813892 48.678968071938 48.678974807262 48.679823279381 48.69790917635 48.336776196957 48.336776196957 48.356436163187 48.356555998325 48.356686890125 48.356750965118 48.358657300472 48.360600084066 48.370665729046 48.370701670647 48.374680250883 48.378962337971 48.379231601954 48.86585059762 48.871880888939 48.872207522392 48.872587710619 48.87285888195 48.878216594458 48.880734443665 48.91799429059 48.953910648823 48.954258948565 48.956185251474 48.961462914944 48.962711423635 49.019208014011 49.022499859333 49.062372326851 49.062350392342 49.062347531319 49.719167500734 49.878269612789 49.879922151566 49.880162835121 49.88947597146 49.886941283941 49.886948913336 49.938333779573 50.048731207848 50.048973858356 50.063095420599 50.066460609436 50.567976415157 51.276915460825 51.279311448336 51.310028523207 51.43660980463 51.438924372196 51.438924372196 51.438925325871 51.438931405544 51.466440349817 51.467305421829 51.49232339859 51.554903745651 51.557842493057 51.557842493057 51.557842493057 51.590208500624 51.634159326553 51.651548087597 51.656776785851 51.677700608969 51.806535333395 51.806535333395 51.896003901958 51.913615435362 51.925032496452 51.951843112707 52.077196419239 52.088751524687 52.089049190283 52.181368529797 52.201073110104 52.279415488243 52.284349530935 52.284137129784 52.333426177502 52.333416879177 52.33339214325 52.33149716258 52.477376699448 52.757615476847 52.894765555859 53.124093681574 53.452689260244 53.446602135897 53.447233587503 53.450645625591 53.451363354921 53.455236136913 53.480292081833 53.480315774679 53.533291131258 53.561619013548 53.574095547199 53.578093081713 53.574219614267 53.62246593833 53.651530086994 53.664918988943 53.740199506283 53.781915158033 53.837517917156 53.837522953749 53.875875890255 54.122287601233 54.143241494894 54.135902047157 54.14106336236 54.14106336236 54.141277223825 54.147430449724 54.135222315788 54.251962602139 54.840383768082 55.300951123238 55.608226150274 55.721168577671 56.585852712393 56.684288620949 56.907827913761 56.909068018198 56.909068018198 56.909068018198 56.913076877594 57.019537329674 57.110049962997 57.123230755329 57.354238510132 57.392723619938 57.392723709345 57.359448522329 57.478126317263 57.645829170942 57.692061543465 59.114872694016 59.260781526566 69.89892333746 70.000873804092 70.474674522877
Other 45.089781492949 45.10662984848 45.188542544842 46.334676980972 46.334495782852 47.270272314548 47.861045062542 48.139495879412 48.189411282539 48.189414799213 48.415837019682 48.442607462406 48.446417748928 48.451555728912 48.616665929556 49.706827282906 49.713445723057 49.713448166847 49.714375734329 49.714375734329 49.7195289433 49.890825867653 49.891647994518 49.892035543919 49.907115995884 49.908370107412 49.925059348345 49.94047960639 50.188921779394 50.189771234989 50.207856208086 49.846723228693 49.846723228693 49.866383194923 49.866503030062 49.866633921862 49.866697996855 49.868604332209 49.870547115803 49.880612760782 49.880648702383 49.884627282619 49.888909369707 49.88917863369 50.375797629356 50.381827920675 50.382154554129 50.382534742355 50.382805913687 50.388163626194 50.390681475401 50.427941322327 50.463857680559 50.464205980301 50.466132283211 50.47140994668 50.472656548023 50.529153138399 50.532444983721 50.572317451239 50.572295516729 50.572292655706 51.229112625122 51.388215690851 51.390683859587 51.392001539469 51.403007090092 51.400472402573 51.400480031967 51.451864898205 51.562262326479 51.562504976988 51.57662653923 51.579991728067 52.081508487463 52.790447533131 52.792843520641 52.823560595512 52.950141876936 52.952456444502 52.952456444502 52.952457398176 52.95246347785 52.979972422123 52.980837494135 53.005855470896 53.068435817957 53.071374565363 53.071374565363 53.071374565363 53.103740572929 53.147691398859 53.165080159903 53.170308858156 53.191232681274 53.320067405701 53.320067405701 53.409535974264 53.427147507668 53.438564568758 53.465375185013 53.590728491545 53.602283596992 53.602581262589 53.694900602102 53.714605182409 53.792947560549 53.797881603241 53.797669202089 53.846958249807 53.846948951483 53.846924215555 53.845029234886 53.990908771753 54.271147549152 54.408297628164 54.63762575388 54.96622133255 54.960134208202 54.960765659809 54.964177697897 54.964895427227 54.968768209219 54.993824154139 54.993847846985 55.046823203564 55.075151085854 55.087627619505 55.091625154018 55.087751686573 55.135998010635 55.1650621593 55.178451061249 55.253731578588 55.295447230339 55.351049989462 55.351055026054 55.389407962561 55.635819673538 55.6567735672 55.649434119463 55.654595434666 55.654595434666 55.654809296131 55.66096252203 55.648754388094 55.765494674444 56.353915840387 56.814482241869 57.121757268906 57.234699696302 58.099383831024 58.19781973958 58.421359032393 58.422599136829 58.422599136829 58.422599136829 58.426607996225 58.533068448305 58.623581081629 58.63676187396 58.867769628763 58.906254738569 58.906254827976 58.872979640961 58.991657435894 59.159360289574 59.205592662096 60.628621131182 60.774529963732 71.412671774626 71.514622241259 71.988422960043