{"id":39054,"date":"2019-10-31T22:27:36","date_gmt":"2019-10-31T19:27:36","guid":{"rendered":"https:\/\/prohoster.info\/blog\/pdu-i-vse-vse-vse-raspredelenie-pitaniya-v-stojke\/"},"modified":"2019-10-31T22:27:36","modified_gmt":"2019-10-31T19:27:36","slug":"pdu-i-vse-vse-vse-raspredelenie-pitaniya-v-stojke","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/pdu-i-vse-vse-vse-raspredelenie-pitaniya-v-stojke","title":{"rendered":"PDU \u00e9s minden, ami csak l\u00e9tezik: az energiaeloszt\u00e1s a szerverrackben","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"PDU \u00e9s minden, ami csak l\u00e9tezik: az energiaeloszt\u00e1s a szerverrackben\" src=\"\/wp-content\/uploads\/2019\/10\/f9bef79a08830d148713955665b987e6.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Egy a bels\u0151 virtualiz\u00e1ci\u00f3s \u00e1llv\u00e1nyok k\u00f6z\u00fcl. A k\u00e1belek sz\u00ednk\u00f3dol\u00e1s\u00e1n\u00e1l \u00fcgyes megold\u00e1st alkalmaztak: a narancss\u00e1rga a p\u00e1ratlan t\u00e1pell\u00e1t\u00e1st jel\u00f6li, a z\u00f6ld pedig a p\u00e1rosat. <\/i><\/p>\n<p>Itt legt\u00f6bbsz\u00f6r a \"nagy dolgokr\u00f3l\" mes\u00e9l\u00fcnk \u2013 chiller, DG, eloszt\u00f3szekr\u00e9nyek. Ma a \"kicsinyekr\u0151l\" lesz sz\u00f3 \u2013 a rackben tal\u00e1lhat\u00f3 aljzatokr\u00f3l, amelyek Power Distribution Unit (PDU) n\u00e9ven is ismertek. Adatk\u00f6zpontjainkban t\u00f6bb mint 4000 rack tal\u00e1lhat\u00f3 tele IT-eszk\u00f6z\u00f6kkel, ez\u00e9rt sokf\u00e9le eszk\u00f6zt l\u00e1ttam: klasszikus PDU-kat, \"okos\" eszk\u00f6z\u00f6ket, amelyek nyomon k\u00f6vet\u00e9st \u00e9s vez\u00e9rl\u00e9st biztos\u00edtanak, valamint standard eloszt\u00f3blokkokat. Ma bemutatom, milyen t\u00edpus\u00fa PDU-k l\u00e9teznek \u00e9s mit \u00e9rdemes v\u00e1lasztani egy adott helyzetben. <noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<h3>Milyen PDU-k l\u00e9teznek<\/h3>\n<p>\n<b>Egyszer\u0171 aljzatblokk.<\/b> Igen, az, amelyik minden h\u00e1zban vagy irod\u00e1ban megtal\u00e1lhat\u00f3. <br \/>\nForm\u00e1lisan nem eg\u00e9szen PDU az IT-eszk\u00f6z\u00f6kkel ell\u00e1tott rackek ipari felhaszn\u00e1l\u00e1s\u00e1nak szempontj\u00e1b\u00f3l, de ezeknek a k\u00e9sz\u00fcl\u00e9keknek is vannak h\u00edvei. Az egyetlen el\u0151nye ennek a megold\u00e1snak az olcs\u00f3s\u00e1g (az \u00e1r 2000 rubeln\u00e9l kezd\u0151dik). Ezenk\u00edv\u00fcl seg\u00edthet, ha nyitott racket haszn\u00e1lsz, ahov\u00e1 a standard PDU-t nem lehet beilleszteni, \u00e9s nem szeretn\u00e9l helyet vesz\u00edteni a v\u00edzszintes PDU miatt. Ez ism\u00e9t az megtakar\u00edt\u00e1s k\u00e9rd\u00e9s\u00e9re vonatkozik.<\/p>\n<p>Sokkal t\u00f6bb h\u00e1tr\u00e1ny van: ezeknek az eszk\u00f6z\u00f6knek nem mindig van bels\u0151 v\u00e9delm\u00fck a r\u00f6vidz\u00e1rlatok \u00e9s t\u00falterhel\u00e9sek ellen, nem lehet nyomon k\u00f6vetni a mutat\u00f3kat, \u00e9s k\u00fcl\u00f6n\u00f6sen nem lehet vez\u00e9relni az aljzatokat. Legt\u00f6bbsz\u00f6r az \u00e1llv\u00e1ny alj\u00e1n helyezkednek el. Ez nem a legk\u00e9nyelmesebb hely az aljzatoknak az eszk\u00f6z\u00f6k csatlakoztat\u00e1s\u00e1hoz. <\/p>\n<p>\u00d6sszess\u00e9g\u00e9ben a \"pilot\" aljzatokat akkor c\u00e9lszer\u0171 haszn\u00e1lni, ha:<\/p>\n<ul>\n<li>t\u00edzezer szervered van, \u00e9s meg kell sp\u00f3rolnod, <\/li>\n<li>vakon szeretn\u00e9d csatlakoztatni az eszk\u00f6z\u00f6ket, nem tudva, hogy val\u00f3j\u00e1ban mi t\u00f6rt\u00e9nik a fogyaszt\u00e1ssal,<\/li>\n<li>k\u00e9szen \u00e1llsz az eszk\u00f6z\u00f6k le\u00e1ll\u00e1s\u00e1ra. <\/li>\n<\/ul>\n<p>\nMi ezt nem haszn\u00e1ljuk, de vannak \u00fcgyfeleink, akik ezt sikeresen alkalmazz\u00e1k. Az igazs\u00e1g az, hogy az infrastrukt\u00far\u00e1jukat olyan m\u00f3don \u00e9p\u00edtik ki a szolg\u00e1ltat\u00e1saikhoz, hogy a t\u00f6bb tucat szerver le\u00e1ll\u00e1sa nem befoly\u00e1solja az \u00fcgyf\u00e9lalkalmaz\u00e1s m\u0171k\u00f6d\u00e9s\u00e9t. <\/p>\n<p><img decoding=\"async\" alt=\"PDU \u00e9s minden, ami csak l\u00e9tezik: az energiaeloszt\u00e1s a szerverrackben\" src=\"\/wp-content\/uploads\/2019\/10\/a065f555adffbdbfc9cf29fcdf4e628c.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Olcs\u00f3 \u00e9s hasznos.<\/i><\/p>\n<p><img decoding=\"async\" alt=\"PDU \u00e9s minden, ami csak l\u00e9tezik: az energiaeloszt\u00e1s a szerverrackben\" src=\"\/wp-content\/uploads\/2019\/10\/b0de3676bf2ec00134dfe95a276cb6b4.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>F\u00fcgg\u0151leges elhelyez\u00e9s.<\/i><\/p>\n<p><b>\"Buta\" PDU.<\/b> Ez val\u00f3j\u00e1ban egy klasszikus PDU, amely IT berendez\u00e9sekhez val\u00f3 szekr\u00e9nyekben val\u00f3 haszn\u00e1latra k\u00e9sz\u00fclt, ami m\u00e1r j\u00f3. Megfelel\u0151 form\u00e1tumban van a szekr\u00e9ny oldal\u00e1n t\u00f6rt\u00e9n\u0151 elhelyez\u00e9shez, \u00edgy k\u00e9nyelmes csatlakozni a berendez\u00e9sekhez. Van bels\u0151 v\u00e9delem is. Az ilyen PDU-knak nincs megfigyel\u00e9se, ez\u00e9rt nem tudjuk, hogy a berendez\u00e9sek mennyit fogyasztanak, \u00e9s ami egy\u00e1ltal\u00e1n t\u00f6rt\u00e9nik bel\u00fcl. Az ilyen PDU-kb\u0151l m\u00e1r szinte alig maradt, \u00e9s \u00f6sszess\u00e9g\u00e9ben fokozatosan elt\u0171nnek a t\u00f6meges haszn\u00e1latb\u00f3l.<\/p>\n<p>Az ilyen PDU-k \u00e1ra 25 ezer r\u00faglt\u00f3l kezd\u0151dik.<\/p>\n<p><img decoding=\"async\" alt=\"PDU \u00e9s minden, ami csak l\u00e9tezik: az energiaeloszt\u00e1s a szerverrackben\" src=\"\/wp-content\/uploads\/2019\/10\/fb16a6c0008306f4c6818a8a5a3675be.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n<b>\u201eOkos\u201d PDU-k megfigyel\u00e9ssel.<\/b> Ezeknek az eszk\u00f6z\u00f6knek vannak \u201eagyai\u201d, \u00e9s k\u00e9pesek nyomon k\u00f6vetni az energiafogyaszt\u00e1s param\u00e9tereit. Van egy kijelz\u0151, ahol a f\u0151 mutat\u00f3k jelennek meg: fesz\u00fclts\u00e9g, \u00e1ram \u00e9s teljes\u00edtm\u00e9ny. Ezeket k\u00fcl\u00f6nb\u00f6z\u0151 aljzatcsoportok szerint lehet nyomon k\u00f6vetni: szekci\u00f3k vagy bankok. Esetleg csatlakozhatunk egy ilyen PDU-hoz t\u00e1volr\u00f3l, \u00e9s be\u00e1ll\u00edthatjuk az adatok k\u00fcld\u00e9s\u00e9t egy megfigyel\u0151 rendszerbe. Napl\u00f3kat \u00edrnak, amelyek alapj\u00e1n megn\u00e9zhetj\u00fck, mi t\u00f6rt\u00e9nt vele, p\u00e9ld\u00e1ul mikor kapcsolt ki a PDU.<\/p>\n<p>Ezenk\u00edv\u00fcl k\u00e9pesek sz\u00e1molni a fogyaszt\u00e1st (kW*\u00f3ra) technikai elsz\u00e1mol\u00e1s c\u00e9lj\u00e1b\u00f3l, hogy meg\u00e9rts\u00fck, mennyit fogyaszt a szekr\u00e9ny egy adott id\u0151szak alatt. <\/p>\n<p>Ezek a szabv\u00e1nyos PDU-k, amelyeket b\u00e9rl\u00e9sre k\u00edn\u00e1lunk \u00fcgyfeleinknek, \u00e9s ezek a PDU-k a leggyakoribbak adatk\u00f6zpontjainkban.<\/p>\n<p>Ha v\u00e1s\u00e1rolni szeretne, k\u00e9sz\u00fclj\u00f6n fel, hogy darabonk\u00e9nt 75 ezer r\u00faglt\u00f3l kezd\u0151d\u0151 \u00f6sszeget kell kifizetnie.<\/p>\n<p><img decoding=\"async\" alt=\"PDU \u00e9s minden, ami csak l\u00e9tezik: az energiaeloszt\u00e1s a szerverrackben\" src=\"\/wp-content\/uploads\/2019\/10\/1525246e5893f9ff3c2b52621adbd467.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n<img decoding=\"async\" alt=\"PDU \u00e9s minden, ami csak l\u00e9tezik: az energiaeloszt\u00e1s a szerverrackben\" src=\"\/wp-content\/uploads\/2019\/10\/830cec7968a7e6f331d4b2841c276e9d.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n<img decoding=\"async\" alt=\"PDU \u00e9s minden, ami csak l\u00e9tezik: az energiaeloszt\u00e1s a szerverrackben\" src=\"\/wp-content\/uploads\/2019\/10\/5afaacf9bf9a4adb72eae7ec6889c072.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>A PDU bels\u0151 megfigyel\u00e9s\u00e9nek grafikonja.<\/i><\/p>\n<p><b>\u201eOkos\u201d PDU-k vez\u00e9rl\u00e9ssel.<\/b> A fent eml\u00edtett funkci\u00f3khoz ezek a PDU-k vez\u00e9rl\u00e9st is hozz\u00e1adnak. A legjobb PDU-k vez\u00e9rlik \u00e9s figyelik minden egyes aljzatot: be- \u00e9s kikapcsolhat\u00f3k, ami sz\u00fcks\u00e9ges lehet olyan helyzetekben, amikor t\u00e1volr\u00f3l kell \u00fajraind\u00edtani a szervert t\u00e1pl\u00e1l\u00e1s \u00fatj\u00e1n. Ez a csoda \u00e9s egyben a vesz\u00e9lye is ezeknek a PDU-knak: a h\u00e9tk\u00f6znapi felhaszn\u00e1l\u00f3 tudatlans\u00e1gb\u00f3l bel\u00e9phet a webes fel\u00fcletre, megnyomhat valamit, \u00e9s egy csap\u00e1sra \u00fajraind\u00edthatja\/kikapcsolhatja az eg\u00e9sz rendszert. Igen, rendszer k\u00e9tszer figyelmeztet a k\u00f6vetkezm\u00e9nyekre, de a gyakorlat azt mutatja, hogy m\u00e9g az \u00e9breszt\u0151k sem v\u00e9denek mindig a meggondolatlan felhaszn\u00e1l\u00f3i cselekedetekt\u0151l. <\/p>\n<p>A \u201eokos\u201d PDU-k egyik nagy probl\u00e9m\u00e1ja a t\u00falmeleged\u00e9s \u00e9s a vez\u00e9rl\u0151 \u00e9s kijelz\u0151 meghib\u00e1sod\u00e1sa. A PDU-kat \u00e1ltal\u00e1ban a szekr\u00e9ny h\u00e1ts\u00f3 r\u00e9sz\u00e9n telep\u00edtik, ahol a forr\u00f3 leveg\u0151 t\u00e1vozik. Ott meleg van, \u00e9s a vez\u00e9rl\u0151k nem b\u00edrj\u00e1k ki. Ugyanakkor a PDU-t nem sz\u00fcks\u00e9ges teljesen cser\u00e9lni, a vez\u00e9rl\u0151t lehet cser\u00e9lni m\u0171k\u00f6d\u00e9s k\u00f6zben. <\/p>\n<p>Az \u00e1r viszont el\u00e9gg\u00e9 borsos - 120 ezer forintt\u00f3l kezd\u0151dik.<\/p>\n<p><img decoding=\"async\" alt=\"PDU \u00e9s minden, ami csak l\u00e9tezik: az energiaeloszt\u00e1s a szerverrackben\" src=\"\/wp-content\/uploads\/2019\/10\/e60a0801cc84efecbce8a462648dd122.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>A PDU kezel\u00e9se a konnektorok alatt tal\u00e1lhat\u00f3 jelz\u00e9sek alapj\u00e1n tudhat\u00f3 meg.<\/i><\/p>\n<p>Szerintem a PDU kezel\u00e9s\u00e9nek funkci\u00f3ja \u00edzl\u00e9s k\u00e9rd\u00e9se, de a monitoroz\u00e1s elengedhetetlen. Ellenkez\u0151 esetben nem lehet nyomon k\u00f6vetni a fogyaszt\u00e1st \u00e9s a terhel\u00e9st. Hogy mi\u00e9rt fontos ez, arr\u00f3l k\u00e9s\u0151bb besz\u00e9lek. <\/p>\n<h3>Hogyan sz\u00e1m\u00edtsuk ki a sz\u00fcks\u00e9ges PDU teljes\u00edtm\u00e9nyt?<\/h3>\n<p>\nEls\u0151 r\u00e1n\u00e9z\u00e9sre itt minden el\u00e9g egyszer\u0171: a PDU teljes\u00edtm\u00e9ny\u00e9t a rack teljes\u00edtm\u00e9ny\u00e9hez kell igaz\u00edtani, de vannak \u00e1rnyalatok. Tegy\u00fck fel, hogy egy 10 kW teljes\u00edtm\u00e9ny\u0171 rack-re van sz\u00fcks\u00e9g. A PDU gy\u00e1rt\u00f3k 3, 7, 11, 22 kW-os modelleket k\u00edn\u00e1lnak. Kiv\u00e1lasztod a 11 kW-t, \u00e9s sajnos t\u00e9vedni fogsz. 22 kW-t kell v\u00e1lasztanod. Mi\u00e9rt is van sz\u00fcks\u00e9g ilyen magas tartal\u00e9kra? Most mindent elmagyar\u00e1zok.<\/p>\n<p>El\u0151sz\u00f6r is, a gy\u00e1rt\u00f3k gyakran kW-ban adj\u00e1k meg a PDU-teljes\u00edtm\u00e9nyt, nem kVA-ban, ami helyesebb, de nem nyilv\u00e1nval\u00f3 a laikus sz\u00e1m\u00e1ra.<br \/>\nN\u00e9ha a gy\u00e1rt\u00f3k saj\u00e1t maguk keverik \u00f6ssze a dolgokat:<\/p>\n<p>Itt el\u0151sz\u00f6r 11 kW-r\u00f3l besz\u00e9lnek,<\/p>\n<p><img decoding=\"async\" alt=\"PDU \u00e9s minden, ami csak l\u00e9tezik: az energiaeloszt\u00e1s a szerverrackben\" src=\"\/wp-content\/uploads\/2019\/10\/d9f76cadc92a2586358c6a011fc53db2.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nA r\u00e9szletes le\u00edr\u00e1sban viszont m\u00e1r 11000 VA szerepel:<\/p>\n<p><img decoding=\"async\" alt=\"PDU \u00e9s minden, ami csak l\u00e9tezik: az energiaeloszt\u00e1s a szerverrackben\" src=\"\/wp-content\/uploads\/2019\/10\/8c314e7b707d62d7b757787e0f66459f.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nHa forral\u00f3kkal \u00e9s hasonl\u00f3 fogyaszt\u00f3kkal van dolgunk, akkor nincs k\u00fcl\u00f6nbs\u00e9g a kW \u00e9s a kVA k\u00f6z\u00f6tt. A 10 kW-os rack forral\u00f3kkal 10 kVA-t fog fogyasztani. Ha viszont IT berendez\u00e9seink vannak, akkor itt megjelenik egy t\u00e9nyez\u0151 (cos \u03c6): min\u00e9l \u00fajabb az eszk\u00f6z, ann\u00e1l k\u00f6zelebb van ez a t\u00e9nyez\u0151 az egyhez. \u00c1tlagosan az IT berendez\u00e9sek eset\u00e9ben 0,93-0,95 k\u00f6z\u00f6tti \u00e9rt\u00e9ket vehet\u00fcnk. Ez\u00e9rt a 10 kW-os rack IT-vel 10,7 kVA-t fog fogyasztani. \u00cdme a k\u00e9plet, amivel megkaptuk a 10,7 kVA-t.<\/p>\n<p><i>P\u043f\u043e\u043b\u043d.= P\u0430\u043a\u0442. \/ Cos(\u03c6)<br \/>\n10 \/ 0.93 = 10.7 kVA<\/i><\/p>\n<p>Nyilv\u00e1nval\u00f3, hogy jogosan k\u00e9rdezed, 10,7 - ez kevesebb, mint 11. Mi\u00e9rt is kell nek\u00fcnk a 22 kW-os PDU? Van egy m\u00e1sik szempont: az eszk\u00f6z\u00f6k elektromos fogyaszt\u00e1sa az id\u0151t\u0151l \u00e9s a h\u00e9t napj\u00e1t\u00f3l f\u00fcgg\u0151en v\u00e1ltozik. Az \u00e1ramell\u00e1t\u00e1s eloszt\u00e1sakor figyelembe kell venni ezt a szempontot, \u00e9s k\u00f6r\u00fclbel\u00fcl 10%-ot sz\u00fcks\u00e9ges tartal\u00e9kolni a ingadoz\u00e1sokra \u00e9s cs\u00facsokra, hogy a fogyaszt\u00e1s n\u00f6veked\u00e9sekor a PDU ne terhel\u0151dj\u00f6n t\u00fal, \u00e9s ne hagyja \u00e1ram n\u00e9lk\u00fcl az eszk\u00f6z\u00f6ket.<\/p>\n<p><img decoding=\"async\" alt=\"PDU \u00e9s minden, ami csak l\u00e9tezik: az energiaeloszt\u00e1s a szerverrackben\" src=\"\/wp-content\/uploads\/2019\/10\/e45b43aeb146aaabfd5915e35a959731.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>A 10 kW-os rack fogyaszt\u00e1s\u00e1nak grafikonja n\u00e9gy nap alatt.<\/i><\/p>\n<p>Teh\u00e1t a megl\u00e9v\u0151 10,7 kW-hoz m\u00e9g 10%-ot kell hozz\u00e1adnunk, \u00e9s v\u00e9g\u00fcl a 11 kW-os PDU m\u00e1r nem felel meg.<\/p>\n<table>\n<tr>\n<td>PDU t\u00edpus\n<\/td>\n<td>F\u00e1zisok sz\u00e1ma\n<\/td>\n<td>Gy\u00e1rt\u00f3 teljes\u00edtm\u00e9nye, kVA\n<\/td>\n<td>DtLN teljes\u00edtm\u00e9ny, kW\n<\/td>\n<\/tr>\n<tr>\n<td><noindex><a rel=\"nofollow\" href=\"https:\/\/www.se.com\/ru\/ru\/product\/AP8858_APC\/%D1%81%D1%82%D0%BE%D0%B5%D1%87%D0%BD%D1%8B%D0%B9-%D0%B1%D1%80%D0%BF-2g%2C-%D1%81-%D0%BF%D1%80%D0%B8%D0%B1%D0%BE%D1%80%D0%B0%D0%BC%D0%B8-%D1%83%D1%87%D0%B5%D1%82%D0%B0%2C-0u%2C-20%C2%A0a-208%C2%A0%D0%B2%2C-16%C2%A0a-230%C2%A0%D0%B2%2C-%2818%29-c13-%D0%B8-%282%29-c19\/?range=61795-%25d0%25b8%25d0%25b7%25d0%25bc%25d0%25b5%25d1%2580%25d0%25b8%25d1%2582%25d0%25b5%25d0%25bb%25d1%258c%25d0%25bd%25d1%258b%25d0%25b5-%25d0%25b1%25d1%2580%25d0%25bf-%25d1%2581%25d1%2582%25d0%25be%25d0%25b5%25d1%2587%25d0%25bd%25d0%25be%25d0%25b3%25d0%25be-%25d0%25b8%25d1%2581%25d0%25bf%25d0%25be%25d0%25bb%25d0%25bd%25d0%25b5%25d0%25bd%25d0%25b8%25d1%258f&amp;filter=business-3-%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D1%8B-%D1%80%D0%B5%D0%B7%D0%B5%D1%80%D0%B2%D0%BD%D0%BE%D0%B3%D0%BE-%D0%BF%D0%B8%D1%82%D0%B0%D0%BD%D0%B8%D1%8F-%D0%B8-%D0%BE%D1%85%D0%BB%D0%B0%D0%B6%D0%B4%D0%B5%D0%BD%D0%B8%D1%8F&amp;parent-category-id=7400&amp;parent-subcategory-id=7410\">AP8858<\/a><\/noindex>\n<\/td>\n<td>1 f\u00e1zis\n<\/td>\n<td>3,7\n<\/td>\n<td>3\n<\/td>\n<\/tr>\n<tr>\n<td><noindex><a rel=\"nofollow\" href=\"https:\/\/www.se.com\/ru\/ru\/product\/AP8853_APC\/%D1%81%D1%82%D0%BE%D0%B5%D1%87%D0%BD%D1%8B%D0%B9-%D0%B1%D1%80%D0%BF-2g%2C-%D1%81-%D0%BF%D1%80%D0%B8%D0%B1%D0%BE%D1%80%D0%B0%D0%BC%D0%B8-%D1%83%D1%87%D0%B5%D1%82%D0%B0%2C-0u%2C-32%C2%A0a%2C-230%C2%A0%D0%B2%2C-%2836%29-c13-%D0%B8-%286%29-c19\/?range=61795-%25d0%25b8%25d0%25b7%25d0%25bc%25d0%25b5%25d1%2580%25d0%25b8%25d1%2582%25d0%25b5%25d0%25bb%25d1%258c%25d0%25bd%25d1%258b%25d0%25b5-%25d0%25b1%25d1%2580%25d0%25bf-%25d1%2581%25d1%2582%25d0%25be%25d0%25b5%25d1%2587%25d0%25bd%25d0%25be%25d0%25b3%25d0%25be-%25d0%25b8%25d1%2581%25d0%25bf%25d0%25be%25d0%25bb%25d0%25bd%25d0%25b5%25d0%25bd%25d0%25b8%25d1%258f&amp;filter=business-3-%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D1%8B-%D1%80%D0%B5%D0%B7%D0%B5%D1%80%D0%B2%D0%BD%D0%BE%D0%B3%D0%BE-%D0%BF%D0%B8%D1%82%D0%B0%D0%BD%D0%B8%D1%8F-%D0%B8-%D0%BE%D1%85%D0%BB%D0%B0%D0%B6%D0%B4%D0%B5%D0%BD%D0%B8%D1%8F&amp;parent-category-id=7400&amp;parent-subcategory-id=7410\">AP8853<\/a><\/noindex>\n<\/td>\n<td>1 f\u00e1zis\n<\/td>\n<td>7,4\n<\/td>\n<td>6\n<\/td>\n<\/tr>\n<tr>\n<td><noindex><a rel=\"nofollow\" href=\"https:\/\/www.se.com\/ru\/ru\/product\/AP8881_APC\/%D1%81%D1%82%D0%BE%D0%B5%D1%87%D0%BD%D1%8B%D0%B9-%D0%B1%D1%80%D0%BF-2g%2C-%D1%81-%D0%BF%D1%80%D0%B8%D0%B1%D0%BE%D1%80%D0%B0%D0%BC%D0%B8-%D1%83%D1%87%D0%B5%D1%82%D0%B0%2C-0u%2C-11%C2%A0%D0%BA%D0%B2%D1%82%2C-230%C2%A0%D0%B2%2C-%2836%29-c13-%D0%B8-%286%29-c19\/?range=61795-%25d0%25b8%25d0%25b7%25d0%25bc%25d0%25b5%25d1%2580%25d0%25b8%25d1%2582%25d0%25b5%25d0%25bb%25d1%258c%25d0%25bd%25d1%258b%25d0%25b5-%25d0%25b1%25d1%2580%25d0%25bf-%25d1%2581%25d1%2582%25d0%25be%25d0%25b5%25d1%2587%25d0%25bd%25d0%25be%25d0%25b3%25d0%25be-%25d0%25b8%25d1%2581%25d0%25bf%25d0%25be%25d0%25bb%25d0%25bd%25d0%25b5%25d0%25bd%25d0%25b8%25d1%258f&amp;filter=business-3-%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D1%8B-%D1%80%D0%B5%D0%B7%D0%B5%D1%80%D0%B2%D0%BD%D0%BE%D0%B3%D0%BE-%D0%BF%D0%B8%D1%82%D0%B0%D0%BD%D0%B8%D1%8F-%D0%B8-%D0%BE%D1%85%D0%BB%D0%B0%D0%B6%D0%B4%D0%B5%D0%BD%D0%B8%D1%8F&amp;parent-category-id=7400&amp;parent-subcategory-id=7410\">AP8881<\/a><\/noindex>\n<\/td>\n<td>3 f\u00e1zis\n<\/td>\n<td>11\n<\/td>\n<td>9\n<\/td>\n<\/tr>\n<tr>\n<td><noindex><a rel=\"nofollow\" href=\"https:\/\/www.se.com\/ru\/ru\/product\/AP8886_APC\/%D1%81%D1%82%D0%BE%D0%B5%D1%87%D0%BD%D1%8B%D0%B9-%D0%B1%D1%80%D0%BF-2g%2C-%D1%81-%D0%BF%D1%80%D0%B8%D0%B1%D0%BE%D1%80%D0%B0%D0%BC%D0%B8-%D1%83%D1%87%D0%B5%D1%82%D0%B0%2C-0u%2C-22%2C0%C2%A0%D0%BA%D0%B2%D1%82-%2832%C2%A0%D0%B0%29%2C-17%2C3%C2%A0%D0%BA%D0%B2%D1%82-%2824%C2%A0%D0%B0%29%2C-230%C2%A0%D0%B2%2C-%D1%80%D0%BE%D0%B7%D0%B5%D1%82%D0%BA%D0%B8%3A-%2830%29-c13-%D0%B8-%2812%29-c19\/?range=61795-%25d0%25b8%25d0%25b7%25d0%25bc%25d0%25b5%25d1%2580%25d0%25b8%25d1%2582%25d0%25b5%25d0%25bb%25d1%258c%25d0%25bd%25d1%258b%25d0%25b5-%25d0%25b1%25d1%2580%25d0%25bf-%25d1%2581%25d1%2582%25d0%25be%25d0%25b5%25d1%2587%25d0%25bd%25d0%25be%25d0%25b3%25d0%25be-%25d0%25b8%25d1%2581%25d0%25bf%25d0%25be%25d0%25bb%25d0%25bd%25d0%25b5%25d0%25bd%25d0%25b8%25d1%258f&amp;filter=business-3-%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC%D1%8B-%D1%80%D0%B5%D0%B7%D0%B5%D1%80%D0%B2%D0%BD%D0%BE%D0%B3%D0%BE-%D0%BF%D0%B8%D1%82%D0%B0%D0%BD%D0%B8%D1%8F-%D0%B8-%D0%BE%D1%85%D0%BB%D0%B0%D0%B6%D0%B4%D0%B5%D0%BD%D0%B8%D1%8F&amp;parent-category-id=7400&amp;parent-subcategory-id=7410\">AP8886<\/a><\/noindex>\n<\/td>\n<td>3 f\u00e1zis\n<\/td>\n<td>22\n<\/td>\n<td>18\n<\/td>\n<\/tr>\n<\/table>\n<p>\n<i>A DataLine verzi\u00f3 szerinti k\u00fcl\u00f6nb\u00f6z\u0151 PDU modellek teljes\u00edtm\u00e9ny\u00e9nek t\u00e1bl\u00e1zata. Figyelembe v\u00e9ve a kVA kW-ra t\u00f6rt\u00e9n\u0151 \u00e1tv\u00e1lt\u00e1st \u00e9s a napi ingadoz\u00e1sokat.<\/i><\/p>\n<h3>Telep\u00edt\u00e9si jellemz\u0151k<\/h3>\n<p>\nA PDU is easiest to work with when it is mounted vertically, on the left and right sides of the rack. In this case, it does not occupy useful space. Up to four PDUs can be installed in the rack \u2014 two on the left and two on the right. Most often, one PDU is placed on each side. Each PDU receives one power input. <\/p>\n<p><img decoding=\"async\" alt=\"PDU \u00e9s minden, ami csak l\u00e9tezik: az energiaeloszt\u00e1s a szerverrackben\" src=\"\/wp-content\/uploads\/2019\/10\/e180fb9d97ebecdb9abdeaf3cd4e3f36.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>The standard \"dressing\" of the rack consists of 2 PDUs and 1 UPS.<\/i><\/p>\n<p>Sometimes there isn't space in the rack for vertical PDUs, for example, if it is an open rack. In this case, horizontal PDUs come to the rescue. The only downside is that you'll have to deal with a loss of 2 to 4 units in the rack, depending on the PDU model. <\/p>\n<p><img decoding=\"async\" alt=\"PDU \u00e9s minden, ami csak l\u00e9tezik: az energiaeloszt\u00e1s a szerverrackben\" src=\"\/wp-content\/uploads\/2019\/10\/5078ae5ea5c3d66b58648b9ba7ed0ee6.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Here, the PDU takes up 4 units. This type of PDU is also used when it is necessary to separate two clients in one rack. In this case, each client will have a separate pair of PDUs.<\/i><\/p>\n<p>Sometimes, a rack may be chosen that is not deep enough, causing the server to stick out and block the PDU. The saddest part here is not that some outlets will be unused, but that if such a PDU breaks, it will have to be buried right in the rack, or disconnect and remove all the interfering equipment. <\/p>\n<p><img decoding=\"async\" alt=\"PDU \u00e9s minden, ami csak l\u00e9tezik: az energiaeloszt\u00e1s a szerverrackben\" src=\"\/wp-content\/uploads\/2019\/10\/5883f751e1fcbfae7e6f6991b7fc1272.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Don't do this \u2014 1.<\/i><\/p>\n<p><img decoding=\"async\" alt=\"PDU \u00e9s minden, ami csak l\u00e9tezik: az energiaeloszt\u00e1s a szerverrackben\" src=\"\/wp-content\/uploads\/2019\/10\/2cebf71685e3bd9be3a8805bc482047a.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Don't do this \u2014 2.<\/i><\/p>\n<h3>Connecting equipment<\/h3>\n<p>\nEven the most sophisticated PDU won't help if the equipment is connected improperly and there is no possibility to monitor consumption. <\/p>\n<p>What could go wrong? A little <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/dataline\/blog\/310356\/\">technical details<\/a><\/noindex>. Each rack requires two power inputs, and in a standard rack, there are two PDUs. This means that each PDU has its own input. If something happens to one of the inputs (read PDU), the rack continues to operate on the second one. To ensure this scheme works, certain rules need to be followed. Here are the main ones (find the complete list <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/dataline\/blog\/193914\/\">itt<\/a><\/noindex>):<\/p>\n<p><b>Equipment must be connected to different PDUs. <\/b>If the equipment has one power supply and one plug, it is connected to the PDU through an AVR (Automatic Voltage Regulator) or ATS (Automatic Transfer Switch). In case of a failure with one of the inputs or the PDU itself, the AVR switches the equipment to the healthy PDU\/input. The equipment will not notice anything.<\/p>\n<p><b>Load balancing between two inputs \/ PDUs.<\/b> A tartal\u00e9k bemenet csak akkor seg\u00edt, ha elb\u00edrja a lecsatlakozott bemenet terhel\u00e9s\u00e9t. Ehhez sz\u00fcks\u00e9ges tartal\u00e9kot hagyni: minden bemenet terhel\u00e9se legyen kevesebb, mint a n\u00e9vleges teljes\u00edtm\u00e9ny fele, \u00e9s a k\u00e9t bemenet \u00f6sszes terhel\u00e9se legyen kevesebb, mint 100% a n\u00e9vleges teljes\u00edtm\u00e9nyb\u0151l. Csak ebben az esetben tud a megmarad\u00f3 bemenet dupla terhel\u00e9st elviselni. Ha ez nem \u00edgy van, akkor a tartal\u00e9kra val\u00f3 \u00e1tkapcsol\u00e1s tr\u00fckkje nem fog m\u0171k\u00f6dni \u2014 a berendez\u00e9s \u00e1ram n\u00e9lk\u00fcl marad. A legrosszabb elker\u00fcl\u00e9se \u00e9rdek\u00e9ben mi <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/dataline\/blog\/324610\/\">figyelj\u00fck<\/a><\/noindex> ezt a param\u00e9tert. <\/p>\n<p><b>A terhel\u00e9s eloszt\u00e1sa a PDU szekci\u00f3k k\u00f6z\u00f6tt.<\/b> A PDU aljzatok csoportokba \u2014 szekci\u00f3kba vannak \u00f6sszefogva. \u00c1ltal\u00e1ban 2 vagy 3 darabb\u00f3l \u00e1llnak. Minden szekci\u00f3nak van egy meghat\u00e1rozott teljes\u00edtm\u00e9nykorl\u00e1tja. Fontos, hogy ne l\u00e9pj\u00fck t\u00fal ezt, \u00e9s a terhel\u00e9st egyenletesen osszuk el az \u00f6sszes szekci\u00f3 k\u00f6z\u00f6tt. Itt is m\u0171k\u00f6dik a p\u00e1rba \u00e1ll\u00edtott terhel\u00e9sek elve, amelyr\u0151l kor\u00e1bban besz\u00e9lt\u00fcnk.<\/p>\n<p><b>\u00d6sszefoglalva<\/b><\/p>\n<ol>\n<li>Lehet\u0151s\u00e9g szerint v\u00e1lasszon PDU-t monitoroz\u00e1si funkci\u00f3val.<\/li>\n<li>A PDU kiv\u00e1laszt\u00e1sakor hagyjon tartal\u00e9kot az teljes\u00edtm\u00e9nyre.<\/li>\n<li>Szerelje fel a PDU-t \u00fagy, hogy lehet\u0151s\u00e9ge legyen cser\u00e9lni an\u00e9lk\u00fcl, hogy zavarja az IT berendez\u00e9seket.<\/li>\n<li>K\u00f6sse be helyesen: csatlakoztassa a berendez\u00e9st k\u00e9t PDU-hoz, ne terhelje t\u00fal a szekci\u00f3kat, \u00e9s legyen tudat\u00e1ban a p\u00e1rhuzamos terhel\u00e9seknek. <\/li>\n<\/ol>\n<p>Forr\u00e1s: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/dataline\/blog\/471876\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u0434\u043d\u0430 \u0438\u0437 \u0441\u0442\u043e\u0435\u043a \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0435\u0439 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438. \u0417\u0430\u043c\u043e\u0440\u043e\u0447\u0438\u043b\u0438\u0441\u044c \u0441 \u0446\u0432\u0435\u0442\u043e\u0432\u043e\u0439 \u0438\u043d\u0434\u0438\u043a\u0430\u0446\u0438\u0435\u0439 \u043a\u0430\u0431\u0435\u043b\u0435\u0439: \u043e\u0440\u0430\u043d\u0436\u0435\u0432\u044b\u0439 \u043e\u0431\u043e\u0437\u043d\u0430\u0447\u0430\u0435\u0442 \u043d\u0435\u0447\u0435\u0442\u043d\u044b\u0439 \u0432\u0432\u043e\u0434 \u043f\u043e \u043f\u0438\u0442\u0430\u043d\u0438\u044e, \u0437\u0435\u043b\u0435\u043d\u044b\u0439 \u2013 \u0447\u0435\u0442\u043d\u044b\u0439. \u041c\u044b \u0442\u0443\u0442 \u0447\u0430\u0449\u0435 \u0432\u0441\u0435\u0433\u043e \u0440\u0430\u0441\u0441\u043a\u0430\u0437\u044b\u0432\u0430\u0435\u043c \u043f\u0440\u043e \u201c\u043a\u0440\u0443\u043f\u043d\u044f\u043a\u201d \u2013 \u0447\u0438\u043b\u043b\u0435\u0440\u044b, \u0414\u0413\u0423, \u0413\u0420\u0429. \u0421\u0435\u0433\u043e\u0434\u043d\u044f \u0440\u0435\u0447\u044c \u043f\u043e\u0439\u0434\u0435\u0442 \u043e \u201c\u043c\u0435\u043b\u043e\u0447\u0430\u0445\u201d \u2013 \u0440\u043e\u0437\u0435\u0442\u043a\u0438 \u0432 \u0441\u0442\u043e\u0439\u043a\u0430\u0445, \u043e\u043d\u0438 \u0436\u0435 Power Distribution Unit (PDU). \u0412 \u043d\u0430\u0448\u0438\u0445 \u0434\u0430\u0442\u0430-\u0446\u0435\u043d\u0442\u0440\u0430\u0445 \u0431\u043e\u043b\u0435\u0435 4 \u0442\u044b\u0441\u044f\u0447 \u0441\u0442\u043e\u0435\u043a, \u0437\u0430\u0431\u0438\u0442\u044b\u0445 \u0418\u0422-\u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0435\u043c, \u043f\u043e\u044d\u0442\u043e\u043c\u0443 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