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
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
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
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
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
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
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
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