{"id":95643,"date":"2020-10-01T13:42:18","date_gmt":"2020-10-01T11:42:18","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/network-as-a-service-dlya-krupnogo-predpriyatiya-nestandartnyj-kejs"},"modified":"2020-10-01T13:42:18","modified_gmt":"2020-10-01T11:42:18","slug":"network-as-a-service-dlya-krupnogo-predpriyatiya-nestandartnyj-kejs","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/network-as-a-service-dlya-krupnogo-predpriyatiya-nestandartnyj-kejs","title":{"rendered":"Network-as-a-Service suurtele ettev\u00f5tetele: kohandatud juhtum","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"Network-as-a-Service suurtele ettev\u00f5tetele: kohandatud juhtum\" src=\"\/wp-content\/uploads\/2020\/10\/41a850152b71e5f63bd359ceb3af3f01.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Kuidas uuendada suurte ettev\u00f5tete v\u00f5rgu seadmeid tootmise katkestamata<\/i><i>? <\/i><i>Suurprojekti \"avatud s\u00fcdameoperatsiooni\" kohta r\u00e4\u00e4gib <\/i><i><strong>projekti juhtimise spetsialist Linxdatacenter Oleg Fedorov.\u00a0<\/strong><\/i><br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nViimastel aastatel oleme m\u00e4rganud suurenenud n\u00f5udlust klientide seas IT-infrastruktuuri v\u00f5rgu komponentidega seotud teenuste j\u00e4rele. IT-s\u00fcsteemide, teenuste ja rakenduste \u00fchenduvuse vajadus, samuti \u00e4ri j\u00e4lgimise ja operatiivse juhtimise \u00fclesanded sunnivad ettev\u00f5tteid t\u00e4nap\u00e4eval v\u00f5rguprobleemidele rohkem t\u00e4helepanu p\u00f6\u00f6rama.\u00a0\u00a0<\/p>\n<p>K\u00fcsimuste spekter ulatub v\u00f5rgu katkestusteta toimimise tagamisest kuni kliendi iseseisva s\u00fcsteemi loomise ja juhtimiseni, sealhulgas <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/lir\/ipv4\/\"   title=\"IP-aadresse\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"823\">IP-aadresse<\/a>, marsruutimisprotokollide seadistamise ja liikluse haldamise vastavalt organisatsioonide poliitikatele.<\/p>\n<p>Samuti kasvab n\u00f5udlus keerukate lahenduste j\u00e4rele v\u00f5rgu infrastruktuuri seadmiseks ja hooldamiseks, eelk\u00f5ige klientide seas, kelle v\u00f5rgu infrastruktuur on loodud nullist v\u00f5i on moraalselt vananenud, vajades t\u00f5sist moderniseerimist.\u00a0<\/p>\n<p>See trend lange, mis on koosk\u00f5las Linxdatacenteri v\u00f5rgu infrastruktuuri arengu ja keerukuse perioodiga. Oleme laiendanud oma kohaloleku geograafiat Euroopas, liitudes kaugete paikadega, mis omakorda n\u00f5udis v\u00f5rgu infrastruktuuri t\u00e4iustamist.\u00a0<\/p>\n<p>Ettev\u00f5te alustas uut teenust klientidele, Network-as-a-Service: v\u00f5tame enda peale k\u00f5ik v\u00f5rgu\u00fclesanded, v\u00f5imaldades neil keskenduda oma p\u00f5hibusinessile.<\/p>\n<p>Suvel 2020 l\u00f5ppes esimene suur projekt selles suunas, millest tahaksime r\u00e4\u00e4kida.\u00a0<\/p>\n<h2>Alustades\u00a0<\/h2>\n<p>\nSuur t\u00f6\u00f6stuskompleks p\u00f6\u00f6rdus meie poole v\u00f5rgu infrastruktuuri moderniseerimisega seoses \u00fche oma ettev\u00f5tte juures. Oli vaja vana varustuse asendamist uuega, sealhulgas v\u00f5rgu tuumaga.<\/p>\n<p>Viimane seadmete moderniseerimine ettev\u00f5ttes toimus umbes 10 aastat tagasi. Uus juhtkond otsustas parandada \u00fchenduvust, alustades infrastruktuuri uuendamisest k\u00f5ige alusel, f\u00fc\u00fcsilisel tasemel.\u00a0<\/p>\n<p>Projekt jagunes kaheks osaks: serverite ja v\u00f5rgu varustuse uuendamine. Me vastutasime teise osa eest.\u00a0<\/p>\n<p>Baasp\u00f5him\u00f5tted h\u00f5lmasid tootmisliinide seiskamise minimiseerimist t\u00f6\u00f6de teostamise ajal (teatud kohtades isegi t\u00e4ielikku seiskamise v\u00e4listamist). Iga peatumine t\u00e4hendab otseseid rahakaotusi kliendile, mida ei tohtinud mingil juhul juhtuda. Objekt t\u00f6\u00f6tab re\u017eiimis 24\/7\/365 ja arvestades planeeritud seiskamisperioodide t\u00e4ielikku puudumist ettev\u00f5tte praktikas, seisis meie ees \u00fclesanne, mis sisuliselt t\u00e4hendas avatud s\u00fcdame operatsiooni teostamist. See sai projekti peamiseks eristavaks omaduseks.<\/p>\n<h2>L\u00e4heme<\/h2>\n<p>\nT\u00f6\u00f6d plaaniti s\u00fcsteemi kaugetelt s\u00f5lmedelt liikuda l\u00e4hemale, samuti v\u00e4hem m\u00f5jutavatelt tootmisliinidelt neile, mis m\u00f5jutasid t\u00f6\u00f6d otseselt.\u00a0<\/p>\n<p>N\u00e4iteks, kui v\u00f5tta m\u00fc\u00fcgiosakonna s\u00f5lm, siis t\u00f6\u00f6de t\u00f5ttu esinev kommunikatsioonikatkestus ei m\u00f5juta tootmist. Sellega samas aitab selline juhtum meid, kui allt\u00f6\u00f6v\u00f5tjat, kontrollida valitud l\u00e4henemise \u00f5igsust nende s\u00f5lmede juures ning kohandada tegevusi, et t\u00f6\u00f6tada j\u00e4rgmistes projektietappides.\u00a0<\/p>\n<p>Vajadus ei seisne ainult v\u00f5rkude ja juhtmete vahetamises, vaid ka k\u00f5igi komponentide \u00f5iges seadistamises, et lahendus toimiks korrektselt. Just seadistusi kontrolliti j\u00e4rgmiselt: alustades tuumast eemal t\u00f6\u00f6tamist, andsime endale omamoodi \"\u00f5iguse eksida\", mitte seades ohtu ettev\u00f5tte kriitiliselt olulised alad.\u00a0<\/p>\n<p>Me m\u00e4\u00e4ratlesime alad, mis ei m\u00f5juta tootmisprotsessi, samuti kriitilised punktid \u2013 t\u00f6\u00f6kojad, laadimis- ja mahalaadimisblokk, laod jne. Klientidega kokku leppides m\u00e4\u00e4rasime iga v\u00f5rgu s\u00f5lme jaoks lubatud seisakuaja, mis oli vahemikus 1 kuni 15 minutit. Erakordselt ei olnud v\u00f5imalik v\u00e4ltida teatud v\u00f5rgu s\u00f5lmede v\u00e4ljal\u00fclitamist, kuna kaabel tuleb f\u00fc\u00fcsiliselt vanast seadmetest uutesse \u00fcmber l\u00fclitada, ja selle protsessi k\u00e4igus tuleb lahti harutada ka juhtmete \"saba\", mis on tekkinud mitme aasta jooksul ilma n\u00f5uetekohase hoolduseta (\u00fcks outsourcingu t\u00f6\u00f6st tulenevaid tagaj\u00e4rgi kaabeldusprojektide osas).<\/p>\n<p>T\u00f6\u00f6d jagati mitmeks etapiks.<\/p>\n<p><b>Etapp 1<\/b> \u2013 Audit. T\u00f6\u00f6de kavandamise l\u00e4henemise ettevalmistamine ja koosk\u00f5lastamine ning kliendi, paigaldusettev\u00f5tte ja meie meeskonna valmiduse hindamine.<\/p>\n<p><b>Etapp 2<\/b> \u2013 T\u00f6\u00f6de teostamise formaadi arendamine p\u00f5hjaliku anal\u00fc\u00fcsi ja planeerimisega. Valiti kontrollnimekiri, mis n\u00e4itab t\u00e4pselt tegevuste j\u00e4rjekorda ja j\u00e4rjestust, kaasa arvatud vahe\u00fchenduste vahetamine portide vahel.<\/p>\n<p><b>Etapp 3<\/b> \u2013 T\u00f6\u00f6de teostamine kappides, mis ei m\u00f5juta tootmist. Seisakuaja hindamine ja korrigeerimine j\u00e4rgnevate t\u00f6\u00f6de etappide jaoks.<\/p>\n<p><b>Etapp 4<\/b> \u2013 T\u00f6\u00f6de teostamine kappides, mis m\u00f5jutavad otseselt tootmist. Seisakuaja hindamine ja korrigeerimine l\u00f5pp-etapi jaoks.<\/p>\n<p><b>Etapp 5<\/b> \u2013 T\u00f6\u00f6de teostamine serveritoas \u00fclej\u00e4\u00e4nud seadmete vahetamiseks. Suunamine uuele tuumale.<\/p>\n<p><b>Etapp 6<\/b> \u2013 S\u00fcsteemi tuuma sujuv \u00fcleminek vanadelt v\u00f5rgu konfiguratsioonidelt uuteks, et kogu s\u00fcsteemi kompleks sujuvalt toimiks (VLAN, marsruutimine jne). Sellel etapil \u00fchendasime k\u00f5ik kasutajad ja \u00fcksteise j\u00e4rel viisime k\u00f5ik teenused uuele varustusele, kontrollisime \u00fchenduste korrektsust, veendusime, et \u00fckski ettev\u00f5tte teenustest ei peatu ning garantii, et v\u00f5imalike probleemide korral on need otseselt seotud tuumaga, mist\u00f5ttu oli lihtsam v\u00f5imalikke t\u00f5rkeid k\u00f5rvaldata ja l\u00f5ppseadistust teha.\u00a0<\/p>\n<h2>Juhtmoodulite hooldus<\/h2>\n<p>\nProjekt osutus keeruliseks ka keerukate l\u00e4hteolude t\u00f5ttu.\u00a0<\/p>\n<p>Esiteks, see on tohutult palju s\u00f5lmi ja v\u00f5rgupiirkondi, kus on keeruline topoloogia ja juhtmete klassifitseerimine nende m\u00e4\u00e4ramise j\u00e4rgi. Sellised 'juhtmed' tuli kapidest v\u00e4lja tuua ja hoolikalt 'hooldada', m\u00f5istmaks, kust juhtmed tulevad ja kuhu viivad.\u00a0<\/p>\n<p>See n\u00e4gi v\u00e4lja umbes nii:<\/p>\n<p><img decoding=\"async\" alt=\"Network-as-a-Service suurtele ettev\u00f5tetele: kohandatud juhtum\" src=\"\/wp-content\/uploads\/2020\/10\/250765ff4f34b562faabfa17419345fb.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nnii:<\/p>\n<p><img decoding=\"async\" alt=\"Network-as-a-Service suurtele ettev\u00f5tetele: kohandatud juhtum\" src=\"\/wp-content\/uploads\/2020\/10\/4b010a2c0679143230cb355d9eea5a17.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nv\u00f5i selline:\u00a0<\/p>\n<p><img decoding=\"async\" alt=\"Network-as-a-Service suurtele ettev\u00f5tetele: kohandatud juhtum\" src=\"\/wp-content\/uploads\/2020\/10\/c5c25358974e0ec219ac7a1ab97b84e9.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nTeiseks, iga sellise \u00fclesande puhul tuli ette valmistada fail, mis kirjeldab protsessi. \"V\u00f5tame kaabli X vanast seadmest pordist 1 ja \u00fchendame selle uue seadme pordiga 18.\" N\u00e4eb v\u00e4lja lihtne, kuid kui sul on algandmetes 48 t\u00e4ielikult t\u00e4idetud porti ning seisaku v\u00f5imalust pole (m\u00f5tleme 24\/7\/365), siis on ainus lahendus t\u00f6\u00f6tada plokkidena. Mida rohkem kaableid suudame vanast seadmest korraga eemaldada, seda kiiremini saame need korda teha ja uude v\u00f5rku paigaldada, v\u00e4ltides v\u00f5rgu t\u00f5rkeid ja seisakuid.\u00a0<\/p>\n<p>Seet\u00f5ttu viisime ettevalmistavas etapis v\u00f5rgu jaotuse plokkidesse \u2013 igal neist oli oma VLAN. Iga port (v\u00f5i nende alamhulk) vanas seadmes vastas m\u00f5nele VLAN-ile uues v\u00f5rgu topoloogias. Grupeerisime need nii: l\u00fcliti esimestes portides olid kasutajate v\u00f5rgud, keskel tootmisv\u00f5rgud ja viimastes juurdep\u00e4\u00e4supunktid ja \u00fcles\u00fchendused.\u00a0<\/p>\n<p>Selline l\u00e4henemine v\u00f5imaldas \u00fchel korral vanast seadmest v\u00e4lja t\u00f5sta ja korda teha mitte 1 kaabli, vaid 10-15. See kiirendas t\u00f6\u00f6protsessi mitmekordselt.\u00a0\u00a0<\/p>\n<p>\u00dcksikasjalikult, nii n\u00e4evad juhtmed kapis v\u00e4lja p\u00e4rast korrastamist:\u00a0<\/p>\n<p><img decoding=\"async\" alt=\"Network-as-a-Service suurtele ettev\u00f5tetele: kohandatud juhtum\" src=\"\/wp-content\/uploads\/2020\/10\/18ae2427926aaa85bf7c730bcd3c7ea3.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nv\u00f5i n\u00e4iteks nii:\u00a0<\/p>\n<p><img decoding=\"async\" alt=\"Network-as-a-Service suurtele ettev\u00f5tetele: kohandatud juhtum\" src=\"\/wp-content\/uploads\/2020\/10\/42b661d166bf5c8f67ea084045e7f04f.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nP\u00e4rast teise etapi l\u00f5ppu tegime pausi vigade ja projekti d\u00fcnaamika anal\u00fc\u00fcsimiseks. N\u00e4iteks ilmnesid kohe v\u00e4ikesed puuduj\u00e4\u00e4gid, kuna esitatud v\u00f5rgu skeemides olid ebat\u00e4psused (vale konnektor skeemil \u2013 vale ostetud patch-kord ja vajadus selle vahetamiseks).\u00a0<\/p>\n<p>Paus oli vajalik, kuna serveriga t\u00f6\u00f6tades oli isegi v\u00e4ike rike protsessis vastuv\u00f5etamatu. Kui eesm\u00e4rk on tagada, et v\u00f5rgu l\u00f5igus ei oleks seisakut \u00fcle 5 minuti, siis seda \u00fcletada ei tohtinud. K\u00f5ik v\u00f5imalikud ajakava k\u00f5rvalekalded pidid olema koosk\u00f5lastatud kliendiga.\u00a0<\/p>\n<p>Siiski v\u00f5imaldas eelnev planeerimine ja projekti jaotamine plokkideks j\u00e4\u00e4da k\u00f5ikides l\u00f5ikudes kavandatud seisaku aega ning enamikul juhtudel isegi ilma selleta hakkama saada.\u00a0<\/p>\n<h2>Aja v\u00e4ljakutse \u2013 projekt COVID-i ajal\u00a0<\/h2>\n<p>\nIlma lisaprobleemideta siiski ei saanud. Loomulikult oli koroonaviirus \u00fcks takistustest.\u00a0<\/p>\n<p>T\u00f6\u00f6d muutusid keeruliseks seoses pandeemia algusega, mist\u00f5ttu ei saanud k\u00f5ik projekti elluviimisega seotud spetsialistid kohal olla. Kohale lubati ainult paigaldusettev\u00f5tte t\u00f6\u00f6tajad, samas kui kontroll toimus Zoomi ruumis \u2013 seal viibis Linxdatacenteri v\u00f5rguinsener, mina projektijuht, kliendi poolt m\u00e4\u00e4ratud v\u00f5rguinsener, kes vastutas t\u00f6\u00f6 teostamise eest, ja paigaldust\u00f6id teostav meeskond.<\/p>\n<p>T\u00f6\u00f6 k\u00e4igus tekkisid arvestamata probleemid, mille t\u00f5ttu tuli jooksvalt kohandusi teha. Nii suudeti kiiresti inimfaktorist tulenevaid m\u00f5jusid (skeemist tingitud vead, vead liidese aktiivsuse m\u00e4\u00e4ramisel jne) v\u00e4ltida.<\/p>\n<p>Kuigi kaugt\u00f6\u00f6 formaat tundus projekti alguses ebaharilik, suudame me kiiresti uutele tingimustele kohanduda ja oleme j\u00f5udnud t\u00f6\u00f6 l\u00f5ppfaasi.\u00a0<\/p>\n<p>K\u00e4ivitame ajutise v\u00f5rgu konfigureerimise kahe v\u00f5rgu tuuma \u2013 vana ja uue \u2013 paralleelseks t\u00f6\u00f6ks sujuva \u00fclemineku tagamiseks. T\u00f5desime siiski, et uut tuuma konfiguratsioonifailist ei olnud eemaldatud \u00fcks \u00fcleliigne rida, mist\u00f5ttu \u00fcleminek ei toimunud. See sundis meid p\u00fchendama aega probleemi otsimisele.\u00a0<\/p>\n<p>Selgus, et peamine andmevoog edastati korrektselt, kuid juhtimisandmed ei j\u00f5udnud s\u00f5lmeni uue tuuma kaudu. T\u00e4nu projekti selgele jaotusele etappideks suudeti suhteliselt kiiresti tuvastada probleemi piirkond v\u00f5rgus, avastada probleem ja see k\u00f5rvaldada.\u00a0<\/p>\n<h2>Ja tulemuseks<\/h2>\n<p>\n<i>Projekti tehnilised tulemused\u00a0<\/i><\/p>\n<p>Esiteks loodi uue ettev\u00f5tte v\u00f5rgu tuum, mille jaoks ehitasime f\u00fc\u00fcsilised\/loogilised r\u00f5ngad. See on tehtud nii, et igal v\u00f5rgu l\u00fclitil oleks \u201eteine \u00f5lg\u201c. Vanas v\u00f5rgus \u00fchinesid paljusid l\u00fcliteid tuumaga \u00fche teega, \u00fche \u00f5laga (uplink). Kui see katkestas, muutus l\u00fcliti t\u00e4ielikult saavutamatuks. Ja kui \u00fche uplinkiga oli \u00fchendatud mitu l\u00fclitit, siis rike viis p\u00f5him\u00f5tteliselt terve osakonna v\u00f5i tootmisliini ettev\u00f5ttes t\u00f6\u00f6v\u00f5imetuks.\u00a0<\/p>\n<p>Uues v\u00f5rgus ei suuda isegi t\u00f5sine v\u00f5rgu\u00f5nnetus \u00fchelgi juhul \u201emaandada\u201c kogu v\u00f5rku v\u00f5i olulist selle osa.\u00a0<\/p>\n<p>90% kogu v\u00f5rgu seadmetest on uuendatud, v\u00e4lja on viidud mediakonverterid (signaali levitamise muundurid) ja ka \u00e4ra on kaotatud vajadus eraldi toitejuhtmete j\u00e4rele seadmete toiteks, \u00fchendades PoE-l\u00fclititega, kus elektritoide edastatakse Etherneti kaablite kaudu.\u00a0<\/p>\n<p>K\u00f5ik optilised \u00fchendused serveris ja kapides on m\u00e4rgistatud \u2013 k\u00f5ikidel v\u00f5tme\u00fchenduse s\u00f5lmedel. See on v\u00f5imaldanud koostada topoloogilise skeemi varustuse ja \u00fchenduste kohta, mis kajastab selle tegelikku seisundit t\u00e4nasel p\u00e4eval.\u00a0<\/p>\n<p><i>V\u00f5rgu skeem<\/i><br \/>\n<img decoding=\"async\" alt=\"Network-as-a-Service suurtele ettev\u00f5tetele: kohandatud juhtum\" src=\"\/wp-content\/uploads\/2020\/10\/03227daadfdd7e86146f76c5755b1fc2.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nPeamine tehniline j\u00e4reldus: ulatuslikud infrastruktuuri t\u00f6\u00f6d viidi l\u00e4bi kiiresti, h\u00e4irimata ettev\u00f5tte t\u00f6\u00f6d ja peaaegu m\u00e4rkamatult selle personalile.\u00a0<\/p>\n<p><i>Projekti \u00e4rilised kokkuv\u00f5tted<\/i><\/p>\n<p>Minu arvates on see projekt huvitav eesk\u00e4tt mitte tehnilisest, vaid organisatoorsest vaatepunktist. Peamine keerukus seisnes projektit\u00f6\u00f6de elluviimise planeerimises ja l\u00e4bim\u00f5tlemises.\u00a0<\/p>\n<p>Projekti edukus lubab r\u00e4\u00e4kida sellest, et meie algatus arendada v\u00f5rguteenuseid Linxdatacenteri teenuste portfelli raames on \u00f5ige valik ettev\u00f5tte arengusuuna osas. Vastutustundlik projektijuhtimine, p\u00e4dev strateegia ja selge planeerimine v\u00f5imaldasid meil t\u00f6\u00f6 kvaliteetselt l\u00f5pule viia.\u00a0<\/p>\n<p>T\u00f6\u00f6 kvaliteedi kinnitamine \u2013 kliendi taotlus j\u00e4tkata teenuste osutamist oma muudele objektidele Venemaal v\u00f5rgu moderniseerimiseks.<br \/>\n<br \/>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/linxdatacenter\/blog\/521352\/\">habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u0430\u043a \u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c \u0441\u0435\u0442\u0435\u0432\u043e\u0435 \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0435 \u043d\u0430 \u043a\u0440\u0443\u043f\u043d\u043e\u043c \u043f\u0440\u0435\u0434\u043f\u0440\u0438\u044f\u0442\u0438\u0438 \u0431\u0435\u0437 \u043e\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u0430? 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