{"id":74068,"date":"2020-03-14T02:42:21","date_gmt":"2020-03-13T23:42:21","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/avr-i-vse-vse-vse-avtomaticheskij-vvod-rezerva-v-data-czentre"},"modified":"2020-03-14T02:42:21","modified_gmt":"2020-03-13T23:42:21","slug":"avr-i-vse-vse-vse-avtomaticheskij-vvod-rezerva-v-data-czentre","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/avr-i-vse-vse-vse-avtomaticheskij-vvod-rezerva-v-data-czentre","title":{"rendered":"AVR ja k\u00f5ik, k\u00f5ik, k\u00f5ik: automaatne varuenergia sissel\u00fclitus andakeskuses","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Eelmisel postitusel r\u00e4\u00e4kisime <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/dataline\/blog\/471876\/\">PDU<\/a><\/noindex> sellest, et m\u00f5nedes rackides on paigaldatud AVR \u2014 automaatne varuenergia sissel\u00fclitus. Kuid tegelikult paigaldatakse andakeskustes AVR mitte ainult racki, vaid ka kogu elektri\u00fchenduse teele. Erinevates kohtades lahendatakse erinevaid \u00fclesandeid:<\/p>\n<ul>\n<li>peamistes jaotuskilbides (G\u0420\u0429) l\u00fclitab AVR koormuse linna k\u00fclge mineku ja diiselgeneratorite (D\u0413U) varuenergia vahel;\u00a0\n<\/li>\n<li>katkestusteta toiteallikates (\u0418\u0411\u041f) l\u00fclitab AVR koormuse p\u00f5hiv\u00f5rgust bypass'ile (sellest r\u00e4\u00e4gime veidi hiljem);\u00a0\n<\/li>\n<li>rackides l\u00fclitab AVR koormuse \u00fchelt sisendilt teisele, kui \u00fcks sisenditest ei toimi.\u00a0\n<\/li>\n<\/ul>\n<p>\n<img decoding=\"async\" alt=\"AVR ja k\u00f5ik, k\u00f5ik, k\u00f5ik: automaatne varuenergia sissel\u00fclitus andakeskuses\" src=\"\/wp-content\/uploads\/2020\/03\/a2466b2df6759cf0982df39b1b468e4c.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>AVR standardses andakeskuste energiatarnimise skeemis DataLine.<\/i><\/p>\n<p>T\u00e4na r\u00e4\u00e4gime, milliseid AVR-e ja kus kasutatakse.\u00a0<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nPeamisi AVR-t\u00fc\u00fcpe on kaks: <b>ATS (automaatne \u00fclekande l\u00fcliti) ja STS (staatiline \u00fclekande l\u00fcliti)<\/b>. Need erinevad oma t\u00f6\u00f6p\u00f5him\u00f5tete ja komponente, ning neid kasutatakse erinevate \u00fclesannete t\u00e4itmiseks. L\u00fchidalt, STS on \u201enutikam\u201c ATS. See l\u00fclitab koormuse kiiremini ja kasutatakse sagedamini suuremate koormuste\/tokkide jaoks. See on paindlikum seadistustes, kuid on v\u00f5rgu suhtes n\u00f5udlikum: v\u00f5ib keelduda t\u00f6\u00f6tamast, kui kaks sisendit tulevad erinevatest allikatest, n\u00e4iteks: trafo ja D\u0413U.\u00a0\u00a0<\/p>\n<h2>AVR G\u0420\u0429-s<\/h2>\n<p>\u00a0<br \/>\nKahek\u00fcmne aasta eest n\u00e4gi andakeskuse peamine AVR v\u00e4lja nagu keeruline kontaktide ja releede s\u00fcsteem.<\/p>\n<p><img decoding=\"async\" alt=\"AVR ja k\u00f5ik, k\u00f5ik, k\u00f5ik: automaatne varuenergia sissel\u00fclitus andakeskuses\" src=\"\/wp-content\/uploads\/2020\/03\/b481efb2947821f650b56e791f8622a9.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>2000. aastate alguse AVR.<\/i><\/p>\n<p>T\u00e4nap\u00e4eval on AVR kompaktne multifunktsionaalne seade.<\/p>\n<p><img decoding=\"async\" alt=\"AVR ja k\u00f5ik, k\u00f5ik, k\u00f5ik: automaatne varuenergia sissel\u00fclitus andakeskuses\" src=\"\/wp-content\/uploads\/2020\/03\/34b839b2402c97916b8cb3681989a798.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nAVR s\u00fcsteem G\u0420\u0429-s juhib sissetulevaid automaatl\u00fclite ja annab k\u00e4ske D\u0413U k\u00e4ivitamiseks ja peatamiseks. Kui koormus \u00fcletab 2 MW, ei ole otstarbekas kiirusest kinni hoida. Isegi kui vahetus toimub kiiresti, kulub aega, enne kui D\u0413U k\u00e4ivitub. Selles s\u00fcsteemis kasutatakse aeglasemaid ATS-e ja seadistatakse viivitusi (seaded). See toimib nii: kui energiat andakeskuses muundajatelt ei ole, k\u00e4skib AVR seadmetele: \u201eMuundaja, l\u00fclitu v\u00e4lja. Ootame n\u00fc\u00fcd 10 sekundit (seade), D\u0413U, l\u00fclitu sisse, ootame veel 10 sekundit.\u00a0<\/p>\n<h2>AVR \u0418\u0411\u041f-s\u00a0\u00a0<\/h2>\n<p>\nvaatame teise AVR t\u00fc\u00fcbi, STS ehk staatilise \u00fclekande l\u00fcliti, t\u00f6\u00f6p\u00f5him\u00f5tet.<\/p>\n<p>UPS-is muutuva vooluhulga muundamisel alalispingeks, mis toimub sirgestajas. Seej\u00e4rel muundatakse see inverteris tagasi vahelduvvooluks, kuid n\u00fc\u00fcd stabiilsete parameetritega. See elimineerib h\u00e4ired ja t\u00f5stab energia kvaliteeti. Peamise toiteallika katkestamise korral <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/dataline\/blog\/310356\/\">UPS l\u00fclitub<\/a><\/noindex> aku betoonplokkide peale ja toidab andmekeskust, kuni generaator on t\u00f6\u00f6le pandud.\u00a0<\/p>\n<p>Aga mis juhtub, kui m\u00f5ni element, nagu sirgestaja, inverter v\u00f5i akutoitega, eba\u00f5nnestub? Sel juhul on igas UPS-is \u00fcmbers\u00f5idumehanism ehk bypass. Sellega seade j\u00e4tkab t\u00f6\u00f6d, m\u00f6\u00f6da minnes p\u00f5hielementidest, otse sissetulevast pingest. \u00dcmbers\u00f5idumehhanismi kasutatakse ka siis, kui UPS tuleb v\u00e4lja l\u00fclitada ja remonti viia.\u00a0<\/p>\n<p>STS-moodul UPS-is on vajalik, et ohutult \u00fcleminek \u00fcmbers\u00f5iduv\u00f5rrandisse. Lihtsalt \u00f6eldes, STS kontrollib v\u00f5rgu parameetreid sisendi ja v\u00e4ljundi juures, ootab, kuni need kattuvad, ja l\u00fclitab turvalistes tingimustes.\u00a0<\/p>\n<p><img decoding=\"async\" alt=\"AVR ja k\u00f5ik, k\u00f5ik, k\u00f5ik: automaatne varuenergia sissel\u00fclitus andakeskuses\" src=\"\/wp-content\/uploads\/2020\/03\/98c688d0f0e28a6ef697e096b03d87d1.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<\/p>\n<h2>AVR-iga kabinetis\u00a0<\/h2>\n<p>\nNii et kabinetis on kaks elektritoite sisendit. Kui teie seadmel on kaks toiteploksi, saate selle rahulikult \u00fchendama erinevate PDU-dega, ja \u00fche sisendi kadumine ei ole mure. Aga kui teie serveril on \u00fcks toiteplokk?\u00a0<br \/>\nKabinetis kasutatakse AVR-i, et kaks sisendit ei j\u00e4\u00e4ks kasutult. \u00dche sisendi probleemide korral l\u00fclitab AVR koormuse teisele sisendile.<\/p>\n<blockquote><p>Eriinformatsioon: Kui v\u00f5imalik, v\u00e4ltige seadmeid, millel on ainult \u00fcks toiteplokk, et mitte luua s\u00fcsteemis rikke punkti. Edasi n\u00e4itame, millised on sellise \u00fchendusskeemi puudused.\u00a0<\/p><\/blockquote>\n<p><img decoding=\"async\" alt=\"AVR ja k\u00f5ik, k\u00f5ik, k\u00f5ik: automaatne varuenergia sissel\u00fclitus andakeskuses\" src=\"\/wp-content\/uploads\/2020\/03\/3a2e45499d687ffcd983f88add5958cb.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nAVR-i \u00fclesanne kabinetis on seadmete l\u00fclitamine t\u00f6\u00f6tavale sisendile nii kiiresti, et selle t\u00f6\u00f6s ei oleks katkestusi. Vajalik kiirus on leitud katsete k\u00e4igus: mitte rohkem kui 20 ms. Vaadake, kuidas seda avastati.<\/p>\n<p>Serveriseadmete rikkeid p\u00f5hjustavad pingel\u00f6\u00f6gid (n\u00e4iteks alajaamade t\u00f6\u00f6de, suurte koormuste \u00fchendamise v\u00f5i \u00f5nnetuste t\u00f5ttu). Et illustreerida, kuidas seadmed taluvad erinevat pinget ja kestvust, on v\u00e4lja t\u00f6\u00f6tatud elektriseadmete ohut\u00f6\u00f6 k\u00f5verad CBEMA (Computer and Business Equipment Manufacturers Association). Need on n\u00fc\u00fcd tuntud kui ITIC k\u00f5verad (Information Technology Industry Council), nende variandid on kaasatud IEEE 446 ANSI standarditesse (see on meie GOST-ide analoog).<\/p>\n<p>V\u00f5rdleme graafikuga. Meie \u00fclesanne on tagada, et seadmed t\u00f6\u00f6taksid \"rohelises tsoonis\". ITIC k\u00f5veralt n\u00e4eme, et seade suudab taluda maksimaalselt 20 ms latentsust. Seet\u00f5ttu suuname, et AVR kapis t\u00f6\u00f6taks 20 ms jooksul, parem veel kiiremini.\u00a0\u00a0\u00a0<\/p>\n<p><img decoding=\"async\" alt=\"AVR ja k\u00f5ik, k\u00f5ik, k\u00f5ik: automaatne varuenergia sissel\u00fclitus andakeskuses\" src=\"\/wp-content\/uploads\/2020\/03\/fe6c9e359801283c2868ae758421fb33.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Allikas: <noindex><a rel=\"nofollow\" href=\"https:\/\/www.meandr.ru\/itic\">meandr.ru<\/a><\/noindex>.<\/i><\/p>\n<p><b>AVR seade<\/b>. T\u00fc\u00fcpiline AVR (ATS) meie andmekeskuse kapis v\u00f5tab 1U ja talub koormust 16 A.\u00a0<\/p>\n<p>Ekraanilt n\u00e4eme, milliselt sisendilt AVR toidetakse ja kui palju \u00fchendatud seadmed amprites tarbivad. Eraldi nupuga valime, kas anda prioriteet esimesest v\u00f5i teisest sisendist. Paremal - portide \u00fchendamine AVR-iga:\u00a0<\/p>\n<ul>\n<li>Etherneti port - \u00fchendage j\u00e4lgimine;\n<\/li>\n<li>Seerianumber - siseneda s\u00fclearvuti kaudu ja vaadata logisid, mis toimub;\u00a0\n<\/li>\n<li>USB - sisestada USB m\u00e4lupulk ja uuendada tarkvara.\u00a0\n<\/li>\n<\/ul>\n<p>\nSadamad on omavahel asendatavad: k\u00f5iki neid toiminguid saab teha, kui on juurdep\u00e4\u00e4s v\u00e4hemalt \u00fchele neist.\u00a0<\/p>\n<p><img decoding=\"async\" alt=\"AVR ja k\u00f5ik, k\u00f5ik, k\u00f5ik: automaatne varuenergia sissel\u00fclitus andakeskuses\" src=\"\/wp-content\/uploads\/2020\/03\/db6b2698981c08e3cae0402a757dab09.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nTagak\u00fcljel - pistikud peamise ja varundus sisendi \u00fchendamiseks ning pistikupesas r\u00fchmad IT-seadmestiku jaoks.<\/p>\n<p><img decoding=\"async\" alt=\"AVR ja k\u00f5ik, k\u00f5ik, k\u00f5ik: automaatne varuenergia sissel\u00fclitus andakeskuses\" src=\"\/wp-content\/uploads\/2020\/03\/6e44f4fd995ba6e30a6f1c629c11b9db.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n\u00dcksikasjalikke AVR spetsifikatsioone vaatame veebiliidese kaudu. Seal seadistatakse l\u00fclituse tundlikkus ja logid on n\u00e4htavad.\u00a0<\/p>\n<p><img decoding=\"async\" alt=\"AVR ja k\u00f5ik, k\u00f5ik, k\u00f5ik: automaatne varuenergia sissel\u00fclitus andakeskuses\" src=\"\/wp-content\/uploads\/2020\/03\/370a1d72c373d86738fa7676972b2cef.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>AVR veebiliides.<\/i><\/p>\n<p><b>AVR paigaldamine ja \u00fchendamine<\/b>. AVR installimist k\u00f5rguse j\u00e4rgi on parem teha kapis keskel. Kui me ei tea eelnevalt kapi koosseisu, suudab seade, millel on ainult \u00fcks toiteplokk, kaablitega ulatuda nii alumisse kui \u00fclemisse ossa.\u00a0\u00a0<\/p>\n<p>Kuid selles osas on n\u00fcanss: standardse kapi s\u00fcgavus on palju suurem kui AVR s\u00fcgavus. Soovitame seda paigaldada v\u00f5imalikult l\u00e4hedale k\u00fclmale koridorile kahel p\u00f5hjusel:<\/p>\n<ol>\n<li>Juurdep\u00e4\u00e4s esipaneelile. Kui paigaldada AVR l\u00e4hemale kuumale koridorile, n\u00e4eme indikaatoreid, kuid ei saa portide kaudu \u00fchendust v\u00f5tta. See t\u00e4hendab, et me ei saa vaadata logisid ega seadmed taask\u00e4ivitada.\n<p><img decoding=\"async\" alt=\"AVR ja k\u00f5ik, k\u00f5ik, k\u00f5ik: automaatne varuenergia sissel\u00fclitus andakeskuses\" src=\"\/wp-content\/uploads\/2020\/03\/77f79924003d1024e9bfb81072d483c1.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n<img decoding=\"async\" alt=\"AVR ja k\u00f5ik, k\u00f5ik, k\u00f5ik: automaatne varuenergia sissel\u00fclitus andakeskuses\" src=\"\/wp-content\/uploads\/2020\/03\/5f8c4092a0f8bff5802ec42abd79839c.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Kusagil seal, s\u00fcgaval, vilgub AVR - porti ei saa enam ulatuda.<\/i>\n<\/li>\n<li>K\u00fclma tarnimine. AVR-i soovitatakse kasutada temperatuuril kuni 45 \u00b0C. Sellel ei ole oma ventilaatorit jahutamiseks, see on lihtsalt metalliseade elektroonilise sisuga. Soovitud temperatuuri toetatakse kahel viisil:\u00a0\n<\/li>\n<\/ol>\n<p><\/p>\n<ul>\n<li>\u00f5huvoogudega, mis puhuvad sellele v\u00e4ljast;\u00a0\n<\/li>\n<li>kinnitusdetailidega, mis eemaldavad liigse soojust.\n<\/li>\n<\/ul>\n<p>\nKui paigaldada UPS kuuma koridori poolt ja lisaks suruda see serverite koogiga, saame ahju. Parimal juhul p\u00f5leb UPS'il \u00e4ra aju ja ta kaotab \u00fchenduse v\u00e4lismaailmaga, halvemal juhul hakkab ta kaootiliselt koormust vahetama v\u00f5i viskab selle lihtsalt \u00e4ra.<\/p>\n<p><img decoding=\"async\" alt=\"AVR ja k\u00f5ik, k\u00f5ik, k\u00f5ik: automaatne varuenergia sissel\u00fclitus andakeskuses\" src=\"\/wp-content\/uploads\/2020\/03\/2213c7861d72f2f97ea5f8035556e4b5.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>UPS muretseb kuuma koridori ees n\u00e4oga.<\/i><\/p>\n<blockquote><p>Oli juhtum. Insener kuuldis omap\u00e4raseid kl\u00f5pse ringreisil.<br \/>\nKuuma koridori sisemusest serverite kuhja alt leiti UPS, mis vahetas pidevalt p\u00f5hivoolu reservvoolu.\u00a0<\/p>\n<p>UPS vahetati v\u00e4lja. Logid n\u00e4itasid, et ta vahetas n\u00e4dal aega iga sekundi tagant - kokku \u00fcle poole miljoni \u00fcmberl\u00fclituse. Vaata kuidas see v\u00e4lja n\u00e4eb. <noindex><a rel=\"nofollow\" href=\"https:\/\/youtu.be\/BtXqXXvHcks\">oli<\/a><\/noindex>\n<\/p><\/blockquote>\n<p><\/p>\n<h3>Millised veel UPS'id v\u00f5ivad riiulis olla?<\/h3>\n<p>\n<b>Sissejuhatav ATS riiulile<\/b>. Meie andmekeskuses on selline UPS ainus toitejaotuse allikas riiulis: t\u00f6\u00f6tab nagu UPS+PDU. See v\u00f5tab mitu ruumi, talub 32 A koormust, \u00fchendatakse t\u00f6\u00f6stuslike \u00fchendustega ja suudab toita kuni 6 kW seadmeid. Seda saab kasutada, kui ei ole v\u00f5imalik paigaldada tavalisi PDU-sid ja \u00fches t\u00fckis varustus riiulis ei toeta kriitilisi koormusi.\u00a0<\/p>\n<p><img decoding=\"async\" alt=\"AVR ja k\u00f5ik, k\u00f5ik, k\u00f5ik: automaatne varuenergia sissel\u00fclitus andakeskuses\" src=\"\/wp-content\/uploads\/2020\/03\/1b366a2a7b31d633266ec3e0df0495fe.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n<b>Riiulisse paigaldatav STS<\/b>. STS riiulis kasutatakse seadmete jaoks, mis on tundlikud pingelanguste suhtes. See UPS vahetab kiiremini kui ATS.\u00a0<br \/>\n\u00a0<br \/>\n<img decoding=\"async\" alt=\"AVR ja k\u00f5ik, k\u00f5ik, k\u00f5ik: automaatne varuenergia sissel\u00fclitus andakeskuses\" src=\"\/wp-content\/uploads\/2020\/03\/e45afa3bd64fdd094c2feb591eac45d8.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>See konkreetne STS v\u00f5tab 6 ruumi ja sellel on veidi \"vana kooli\" liides.<\/i><\/p>\n<p><b>Mini-UPS<\/b>. Sellised pisikesed v\u00f5ivad ka olemas olla, kuid meie andmekeskuses selliseid ei eksisteeri. See on mini-UPS \u00fche serveri jaoks.\u00a0<\/p>\n<p><img decoding=\"async\" alt=\"AVR ja k\u00f5ik, k\u00f5ik, k\u00f5ik: automaatne varuenergia sissel\u00fclitus andakeskuses\" src=\"\/wp-content\/uploads\/2020\/03\/ee1b9c7c144ade76b10ab6d1eb6267e1.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>See UPS \u00fchendatakse otse serveri toiteallikasse.<\/i><\/p>\n<h3>Kuidas me otsime ideaalset UPS'i<\/h3>\n<p>\nKatsume palju erinevaid UPS'e ja kontrollime, kuidas nad k\u00e4ituvad k\u00f5rgete temperatuuride tingimustes. <\/p>\n<p>Nii kiusame UPS'e, et seda testida:\u00a0<\/p>\n<ul>\n<li>\u00fchendame sellele v\u00f5rgu kvaliteedi registri, serveri ja veel m\u00f5ned seadmed koormuse jaoks;\n<\/li>\n<li>isoleerime riiuli korkide v\u00f5i kilega, et saavutada k\u00f5rge temperatuur;\n<\/li>\n<li>k\u00fctame kuni 50\u00b0C;\n<\/li>\n<li>l\u00fclitame sisendeid v\u00e4lja j\u00e4rjestikku 20 korda;\n<\/li>\n<li>vaatame, kas voolu katkemisi ei toimunud, kuidas serveril l\u00e4heb;\n<\/li>\n<li>kui UPS testist l\u00e4bi tuleb - kuumutame kuni 70\u00b0C.\n<\/li>\n<\/ul>\n<p>\n<img decoding=\"async\" alt=\"AVR ja k\u00f5ik, k\u00f5ik, k\u00f5ik: automaatne varuenergia sissel\u00fclitus andakeskuses\" src=\"\/wp-content\/uploads\/2020\/03\/d95341812bc80a0de04bda92cf9a93db.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Kujutis termokaameraga \u00fchest katsest.<\/i><\/p>\n<p><img decoding=\"async\" alt=\"AVR ja k\u00f5ik, k\u00f5ik, k\u00f5ik: automaatne varuenergia sissel\u00fclitus andakeskuses\" src=\"\/wp-content\/uploads\/2020\/03\/75d75c0727753e1184b95569322268dc.jpeg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>V\u00f5rguanal\u00fcsaator fikseerib pinget ajas. Salvestises n\u00e4eme, kui kaua kestis \u00fcmberl\u00fclitus: sel hetkel katkestati sinusoid.<\/i><\/p>\n<p>\u00dcks asi veel, v\u00f5tame UPS'i testimiseks: kontrollime teie seadet tugevuse vastu ja anname teada, mis v\u00e4lja tuli \ud83d\ude09\u00a0<\/p>\n<h4>Rikke neist: peidetud oht<\/h4>\n<p>\nPeamine probleem rikke vahetuse automaatika (AVA) korral on see, et see suudab vaid koormust peamisest varuv\u00f5rgust \u00fcle l\u00fclitada, kuid ei kaitse l\u00fchise v\u00f5i koormuse \u00fclekoormuse eest. Kui toiteallikas l\u00e4heb l\u00fchisesse, toimib kaitse automaatne katkemine k\u00f5rgema taseme juures: PDU-s v\u00f5i jaotuskilbis. Tulemuseks on, et \u00fcks sisend l\u00fclitub v\u00e4lja, AVA m\u00f5istab seda ja l\u00fclitub teisele sisendile. Kui l\u00fchis p\u00fcsib, l\u00fclitub v\u00e4lja teise sisendi kaitseautomaat. L\u00f5ppkokkuv\u00f5ttes v\u00f5ib \u00fche seadme probleemi t\u00f5ttu kogu rack elektrita j\u00e4\u00e4da.<\/p>\n<p>Seega kordame veel kord: m\u00f5elge tuhande korda ette, enne kui paigaldada AVA racksisse ja kasutada seadmeid, millel on ainult \u00fcks toiteallikas.<br \/>\n<br \/>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/dataline\/blog\/492016\/\">habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u043f\u0440\u043e\u0448\u043b\u043e\u043c \u043f\u043e\u0441\u0442\u0435 \u043f\u0440\u043e PDU \u043c\u044b \u0433\u043e\u0432\u043e\u0440\u0438\u043b\u0438, \u0447\u0442\u043e \u0432 \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0441\u0442\u043e\u0439\u043a\u0430\u0445 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043b\u0435\u043d \u0410\u0412\u0420 \u2014\u00a0 \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0432\u0432\u043e\u0434 \u0440\u0435\u0437\u0435\u0440\u0432\u0430. \u041d\u043e \u043d\u0430 \u0441\u0430\u043c\u043e\u043c \u0434\u0435\u043b\u0435 \u0432 \u0426\u041e\u0414\u0435 \u0410\u0412\u0420 \u0441\u0442\u0430\u0432\u044f\u0442 \u043d\u0435 \u0442\u043e\u043b\u044c\u043a\u043e \u0432 \u0441\u0442\u043e\u0439\u043a\u0435, \u043d\u043e \u0438 \u043d\u0430 \u0432\u0441\u0435\u043c \u043f\u0443\u0442\u0438 \u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u0442\u0432\u0430. \u0412 \u0440\u0430\u0437\u043d\u044b\u0445 \u043c\u0435\u0441\u0442\u0430\u0445 \u043e\u043d\u0438 \u0440\u0435\u0448\u0430\u044e\u0442 \u0440\u0430\u0437\u043d\u044b\u0435 \u0437\u0430\u0434\u0430\u0447\u0438: \u0432 \u0433\u043b\u0430\u0432\u043d\u044b\u0445 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0445 \u0449\u0438\u0442\u0430\u0445 (\u0413\u0420\u0429) \u0410\u0412\u0420 \u043f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0430\u0435\u0442 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0443 \u043c\u0435\u0436\u0434\u0443 \u0432\u0432\u043e\u0434\u043e\u043c \u043e\u0442 \u0433\u043e\u0440\u043e\u0434\u0430 \u0438 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":74069,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-74068","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 \u043f\u0440\u043e\u0448\u043b\u043e\u043c \u043f\u043e\u0441\u0442\u0435 \u043f\u0440\u043e PDU \u043c\u044b \u0433\u043e\u0432\u043e\u0440\u0438\u043b\u0438, \u0447\u0442\u043e \u0432 \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u0445 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