Moni, owerenga a Habr! M'nkhani yapitayi, tinakambirana za njira yosavuta yopulumutsira masoka mu machitidwe osungiramo AERODISK ENGINE - kubwerezabwereza. M'nkhaniyi, tikhala pansi pamutu wovuta komanso wosangalatsa - metrocluster, ndiko kuti, njira yodzitetezera ku masoka apakati pazigawo ziwiri za data, zomwe zimalola kuti malo opangira deta azigwira ntchito molimbika. Tikuwuzani, kukuwonetsani, kuswa ndikukonza.
Monga mwachizolowezi, chiphunzitso choyamba
Metrocluster ndi gulu lomwe limafalikira malo angapo mkati mwa mzinda kapena dera. Mawu oti "cluster" akuwonetsa momveka bwino kuti zovutazo zimangochitika zokha, ndiye kuti, kusinthana ma cluster node kukalephera kumachitika zokha.
Apa ndipamene pali kusiyana kwakukulu pakati pa metrocluster ndi kubwereza pafupipafupi. Automation ya ntchito. Ndiko kuti, pakachitika zochitika zina (kulephera kwa data center, njira zowonongeka, ndi zina zotero), makina osungiramo zinthu adzadzichitira okha zofunikira kuti asunge deta. Mukamagwiritsa ntchito zofananira pafupipafupi, izi zimachitidwa kwathunthu kapena pang'ono pamanja ndi woyang'anira.
Kodi ndi chiyani?
Cholinga chachikulu chomwe makasitomala amatsata akamagwiritsa ntchito njira zina za metrocluster ndikuchepetsa RTO (Recovery Time Objective). Ndiko kuti, kuchepetsa nthawi yobwezeretsa ntchito za IT pambuyo polephera. Ngati mugwiritsa ntchito kubwereza pafupipafupi, nthawi yochira idzakhala yayitali kuposa nthawi yochira ndi metrocluster. Chifukwa chiyani? Zosavuta kwambiri. Woyang'anira ayenera kukhala pa desiki yake ndikusintha kubwereza pamanja, ndipo metrocluster imachita izi zokha.
Ngati mulibe woyang'anira wodzipereka pantchito yemwe samagona, samadya, samasuta kapena kudwala, ndikuyang'ana momwe malo osungiramo zinthu zilili maola 24 patsiku, ndiye kuti palibe njira yotsimikizira kuti woyang'anira kupezeka pakusintha pamanja pakalephera.
Chifukwa chake, RTO pakalibe metrocluster kapena woyang'anira wosafa wa 99th level of the administrator duty service idzakhala yofanana ndi kuchuluka kwa nthawi yosinthira machitidwe onse komanso nthawi yayitali yomwe woyang'anira amatsimikiziridwa kuti ayambe kugwira ntchito. ndi machitidwe osungira ndi machitidwe okhudzana nawo.
Chifukwa chake, timafika pozindikira kuti metrocluster iyenera kugwiritsidwa ntchito ngati chofunikira kwa RTO ndi mphindi, osati maola kapena masiku.Ndiko kuti, pakagwa vuto lalikulu la data center, dipatimenti ya IT iyenera kupereka bizinesiyo nthawi. kubwezeretsa mwayi wa IT -services mkati mwa mphindi, kapena masekondi.
Kodi ntchito?
Pam'munsi, metrocluster imagwiritsa ntchito njira yolumikizirananso deta, yomwe tidafotokozera m'nkhani yapitayo (onani. ). Popeza kubwereza ndikofanana, zofunikira zake zimagwirizana, kapena m'malo mwake:
- kuwala CHIKWANGWANI monga physics, 10 gigabit Efaneti (kapena apamwamba);
- mtunda pakati pa malo opangira deta siposa makilomita 40;
- kuchedwa kwa njira pakati pa malo opangira data (pakati pa makina osungira) mpaka ma milliseconds 5 (mokwanira 2).
Zofunikira zonsezi ndi ulaliki wachilengedwe, ndiye kuti, zoopsazi zidzagwira ntchito ngakhale izi sizikukwaniritsidwa, koma tiyenera kumvetsetsa kuti zomwe sizigwirizana ndi zomwe sizigwirizana ndi zomwe zimasungidwa metrocluster.
Chifukwa chake, chofananira chofananira chimagwiritsidwa ntchito kusamutsa deta pakati pa makina osungira, ndipo zofananira zimangosintha bwanji ndipo, chofunikira kwambiri, momwe mungapewere kugawanika kwa ubongo? Kuti muchite izi, pamlingo wapamwamba, chinthu chowonjezera chimagwiritsidwa ntchito - arbiter.
Kodi woweruza amagwira ntchito bwanji ndipo ntchito yake ndi yotani?
The arbiter ndi makina ang'onoang'ono enieni kapena gulu la hardware lomwe liyenera kukhazikitsidwa pa malo achitatu (mwachitsanzo, mu ofesi) ndikupereka mwayi wosungirako kudzera pa ICMP ndi SSH. Pambuyo poyambitsa, wotsutsa ayenera kukhazikitsa IP, ndiyeno kuchokera kumbali yosungiramo kusonyeza adiresi yake, kuphatikizapo ma adilesi a olamulira akutali omwe amatenga nawo mbali mu metrocluster. Zitatha izi, woweruzayo ali wokonzeka kugwira ntchito.
The arbiter nthawi zonse amayang'anira machitidwe onse osungira mu metrocluster ndipo ngati njira yosungiramo zinthu sizikupezeka, atatsimikizira kusapezeka kwa membala wina wa gululo (imodzi mwa "moyo" yosungirako machitidwe), amasankha kukhazikitsa njira yosinthira malamulo obwerezabwereza. ndi mapu.
Mfundo yofunika kwambiri. Wotsutsana ayenera kukhala pamalo osiyana ndi omwe amasungirako makina osungiramo zinthu, ndiye kuti, osati pa data center 1, kumene kusungirako 1 kumayikidwa, kapena ku data center 2, kumene kusungirako 2 kumayikidwa.
Chifukwa chiyani? Chifukwa iyi ndiyo njira yokhayo yomwe wotsutsana naye, mothandizidwa ndi imodzi mwa njira zosungiramo zosungirako zotsalira, angathe kudziwa momveka bwino komanso molondola kugwa kwa malo aliwonse awiri omwe makina osungira amaikidwa. Njira zina zilizonse zoyika arbiter zingapangitse ubongo wogawanika.
Tsopano tiyeni tilowe mu tsatanetsatane wa ntchito ya arbitrator.
The arbiter imayendetsa mautumiki angapo omwe nthawi zonse amafufuza olamulira onse osungira. Ngati zotsatira za voti zikusiyana ndi zam'mbuyo (zopezeka / zosapezeka), ndiye kuti zimalembedwa mumndandanda waung'ono, womwe umagwiranso ntchito pa arbiter.
Tiyeni tiwone tsatanetsatane wa ntchito ya arbitrator mwatsatanetsatane.
Gawo 1: Dziwani kuti palibe. Chochitika cholephera kusungirako ndikusowa kwa ping kuchokera kwa olamulira onse a makina osungira omwewo mkati mwa masekondi 5.
Gawo 2. Yambani njira yosinthira. Pambuyo pa arbiter azindikira kuti imodzi mwazosungirako sizikupezeka, amatumiza pempho ku "moyo" wosungirako kuti atsimikizire kuti "wakufa" wosungirako wakufadi.
Pambuyo polandira lamulo loterolo kuchokera kwa arbiter, njira yachiwiri (yamoyo) yosungirako imayang'ananso kupezeka kwa makina osungira omwe akugwa ndipo, ngati palibe, amatumiza chitsimikiziro kwa woweruzayo. Zosungirako sizikupezeka.
Atalandira chitsimikiziro chotero, arbiter akuyambitsa njira yakutali yosinthira kubwereza ndi kukweza mapu pazithunzi zomwe zinali zogwira ntchito (zoyambirira) pa dongosolo losungirako lakugwa, ndikutumiza lamulo ku dongosolo losungirako lachiwiri kuti lisinthe zobwerezazi kuchokera ku sekondale kupita ku pulayimale ndi kwezani mapu. Chabwino, dongosolo lachiwiri losungirako, motero, limachita izi, kenako limapereka mwayi wopeza ma LUN otayika okha.
Chifukwa chiyani kutsimikizira kwina kuli kofunika? Za quorum. Ndiko kuti, ambiri mwa chiwerengero chosamvetseka (3) cha mamembala amagulu ayenera kutsimikizira kugwa kwa imodzi mwamagulu amagulu. Pokhapokha pamene chisankho ichi chidzakhala cholondola. Izi ndizofunikira kuti mupewe kusintha kolakwika komanso, motero, kugawanika-ubongo.
Gawo lachiwiri la nthawi limatenga pafupifupi 2 - 5 masekondi, motero, poganizira nthawi yofunikira kuti mudziwe kusapezeka (masekondi 10), mkati mwa masekondi 5 - 10 ngozi itachitika, ma LUNs kuchokera kumalo osungira omwe akugwa adzapezeka kuti azigwira ntchito ndi omwe akukhala. dongosolo yosungirako.
Zikuwonekeratu kuti kuti mupewe kutayika kwa maubwenzi ndi makamu, muyeneranso kusamala kuti mukonze bwino nthawi yopuma pa omwe akukhala nawo. Nthawi yomalizira yovomerezeka ndi masekondi 30. Izi zidzalepheretsa wolandirayo kuti asawononge kugwirizana kwa malo osungiramo katundu panthawi yosintha katundu pakagwa tsoka ndipo akhoza kuonetsetsa kuti palibe zosokoneza za I / O.
Dikirani kamphindi, zimakhala kuti ngati zonse zili bwino ndi metrocluster, chifukwa chiyani timafunikira kubwereza pafupipafupi?
Kunena zoona, zonse si zophweka.
Tiyeni tilingalire zabwino ndi zoyipa za metrocluster
Chifukwa chake, tidazindikira kuti zabwino zowoneka bwino za metrocluster poyerekeza ndi kubwereza wamba ndi:
- Zodzichitira zonse, kuonetsetsa kuti nthawi yochepa yochira ikachitika tsoka;
- Ndizomwezo :-).
Ndipo tsopano, chidwi, kuipa:
- Mtengo wothetsera. Ngakhale metrocluster mu machitidwe a Aerodisk safuna chilolezo chowonjezera (chilolezo chomwechi chimagwiritsidwa ntchito ngati chofananira), mtengo wa yankho udzakhala wokwera kuposa kugwiritsa ntchito kubwereza kofanana. Mudzafunika kukhazikitsa zonse zofunika pa chithunzi chofananira, kuphatikiza zofunika pa metrocluster yolumikizidwa ndi kusintha kwina ndi malo owonjezera (onani mapulani a metrocluster);
- Kuvuta kwa yankho. Ma metrocluster ndi ovuta kwambiri kuposa mawonekedwe anthawi zonse, ndipo amafunikira chidwi komanso kuyesetsa kwambiri pokonzekera, kukonza ndi kulemba.
Potsirizira pake. Metrocluster ndi njira yabwino kwambiri yaukadaulo komanso yabwino mukafuna kupereka RTO mumasekondi kapena mphindi. Koma ngati palibe ntchito yotereyi, ndipo RTO mu maola ndi yabwino kwa bizinesi, ndiye kuti palibe chifukwa chowombera mpheta kuchokera ku cannon. Kubwereza kwanthawi zonse kwa anthu ogwira ntchito ndikokwanira, chifukwa gulu la metro lidzabweretsa ndalama zowonjezera komanso zovuta za zomangamanga za IT.
Kukonzekera kwa Metrocluster
Gawoli silikunena kuti ndi chiwongolero chokwanira cha mapangidwe a metrocluster, koma amangowonetsa mayendedwe akulu omwe akuyenera kutsatiridwa ngati mwaganiza zopanga dongosolo lotere. Chifukwa chake, mukakhazikitsa metrocluster, onetsetsani kuti mwaphatikiza opanga makina osungira (ndiye kuti, ife) ndi machitidwe ena okhudzana ndi zokambirana.
Malo
Monga tafotokozera pamwambapa, metrocluster imafuna malo osachepera atatu. Malo awiri a data komwe machitidwe osungiramo ndi machitidwe okhudzana nawo adzagwira ntchito, komanso malo achitatu omwe arbitrator adzagwira ntchito.
Mtunda wovomerezeka pakati pa malo opangira data ndi osapitilira makilomita 40. Mtunda wokulirapo ukhoza kuyambitsa kuchedwetsa kwina, komwe ngati kuli metrocluster kumakhala kosayenera. Tikukumbutseni kuti kuchedwa kuyenera kukhala mpaka ma milliseconds 5, ngakhale ndikofunikira kuwasunga mkati mwa 2.
Ndibwino kuti muwone kuchedwa komanso panthawi yokonzekera. Wothandizira okhwima kapena wocheperako yemwe amapereka fiber fiber pakati pa malo opangira data amatha kukonza cheke mwachangu.
Ponena za kuchedwa pamaso pa woweruzayo (ndiko kuti, pakati pa malo achitatu ndi awiri oyambirira), njira yochepetsera yomwe ikulimbikitsidwa ndi 200 milliseconds, ndiko kuti, kugwirizanitsa kwa VPN nthawi zonse pa intaneti ndikoyenera.
Kusintha ndi Networking
Mosiyana ndi ndondomeko yobwerezabwereza, komwe kuli kokwanira kugwirizanitsa machitidwe osungiramo malo osiyanasiyana, ndondomeko ya metrocluster imafuna kugwirizanitsa makamu ndi machitidwe onse osungira kumalo osiyanasiyana. Kuti zimveke bwino kusiyana kwake kuli, ziwembu zonse ziwiri zikuwonetsedwa pansipa.
Monga momwe tikuonera pa chithunzichi, makamu athu a malo a 1 amayang'ana njira zonse zosungiramo 1 ndi zosungirako 2. Komanso, mosiyana, makamu a malo a 2 amayang'ana zonse zosungirako 2 ndi 1 yosungirako. Ndiko kuti, wolandira aliyense amawona machitidwe onse osungira. Izi ndizofunikira pakugwira ntchito kwa metrocluster.
Zoonadi, palibe chifukwa chogwirizanitsa wolandira aliyense ndi chingwe cha kuwala kumalo ena a data; palibe madoko kapena zingwe zomwe zingakhale zokwanira. Malumikizidwe onsewa ayenera kupangidwa kudzera mu Ethernet 10G + kapena FibreChannel 8G + masiwichi (FC ndi yolumikizira makamu ndi makina osungira a IO, njira yobwereza ikupezeka kudzera pa IP (Ethernet 10G + +).
Tsopano mawu ochepa okhudza network topology. Mfundo yofunika ndikukonza kolondola kwa ma subnets. Ndikofunikira kufotokozera mwachangu ma subnet angapo amitundu iyi yamagalimoto:
- Subnet yobwereza yomwe deta idzalumikizidwa pakati pa makina osungira. Pakhoza kukhala angapo a iwo, mu nkhani iyi zilibe kanthu, izo zonse zimadalira panopa (akhazikitsidwa kale) maukonde topology. Ngati pali awiri a iwo, ndiye mwachiwonekere njira iyenera kukhazikitsidwa pakati pawo;
- Ma subnets osungira omwe makamu amapeza zosungirako (ngati ndi iSCSI). Payenera kukhala subnet imodzi yotere mu data center iliyonse;
- Kuwongolera ma subnets, ndiko kuti, ma subnets atatu osinthika pamasamba atatu omwe machitidwe osungira amayendetsedwa, ndipo arbiter imapezekanso pamenepo.
Sitiganizira za ma subnets kuti tipeze zothandizira zopezera apa, chifukwa zimadalira kwambiri ntchitozo.
Kulekanitsa magalimoto osiyanasiyana kukhala ma subnets osiyanasiyana ndikofunikira kwambiri (ndikofunikira kwambiri kulekanitsa chofananacho ndi I/O), chifukwa ngati mutasakaniza kuchuluka kwa magalimoto onse mumsewu umodzi "wokhuthala", ndiye kuti magalimotowa sangathe kuwongolera, komanso zomwe zili m'malo awiri a data izi zitha kuyambitsa njira zosiyanasiyana zolumikizirana maukonde. Sitidzafufuza mozama nkhaniyi mkati mwa chimango cha nkhaniyi, popeza mukhoza kuwerenga za kukonzekera maukonde anatambasula pakati deta malo pa chuma cha opanga zida maukonde, kumene izi zikufotokozedwa mwatsatanetsatane.
Kukonzekera kwa Arbiter
The arbiter ayenera kupereka mwayi wopita ku njira zonse zoyendetsera zosungirako kudzera mu ndondomeko za ICMP ndi SSH. Muyenera kuganiziranso za failsafe ya arbiter. Pali nuance apa.
Arbiter failover ndiyofunika kwambiri, koma osafunikira. Kodi chingachitike ndi chiyani ngati woweruzayo agwa pa nthawi yolakwika?
- Kugwira ntchito kwa metrocluster mumayendedwe abwinobwino sikungasinthe, chifukwa arbtir ilibe mphamvu pakugwira ntchito kwa metrocluster mumayendedwe abwinobwino (ntchito yake ndikusintha katundu pakati pa malo opangira data munthawi yake)
- Komanso, ngati arbiter pazifukwa zina akugwa ndi "kugona" ngozi mu data center, ndiye kuti palibe kusintha komwe kudzachitika, chifukwa sipadzakhalanso wina wopereka malamulo oyenera osinthira ndikukonzekera quorum. Pachifukwa ichi, metrocluster idzasandulika chiwembu chokhazikika ndi kubwerezabwereza, chomwe chiyenera kusinthidwa pamanja pakagwa tsoka, zomwe zidzakhudza RTO.
Chotsatira pa izi? Ngati mukufunadi kuwonetsetsa kuti pali RTO yochepa, muyenera kuwonetsetsa kuti wotsutsayo ndi wololera zolakwika. Pali njira ziwiri za izi:
- Yambitsani makina enieni okhala ndi arbiter pa hypervisor yolekerera zolakwika, mwamwayi onse akuluakulu a hypervisors amathandizira kulekerera zolakwika;
- Ngati pa malo lachitatu (mu ofesi ochiritsira) ndinu waulesi kwambiri kukhazikitsa tsango yachibadwa ndipo palibe gulu hypervozor alipo, ndiye ife anapereka hardware Baibulo la arbiter, amene amapangidwa mu bokosi 2U mmene awiri wamba. Ma seva a x-86 amagwira ntchito ndipo amatha kupulumuka kulephera kwanuko.
Tikukulimbikitsani kuwonetsetsa kulolerana kolakwika kwa arbiter, ngakhale kuti metrocluster siyifunikira mwanjira yabwinobwino. Koma monga momwe malingaliro onse ndi machitidwe amasonyezera, ngati mumanga malo odalirika oteteza masoka, ndiye kuti ndibwino kuti muteteze. Ndibwino kuti mudziteteze nokha ndi bizinesi yanu ku "lamulo loipa," ndiko kuti, kuchokera ku kulephera kwa otsutsana ndi amodzi mwa malo omwe malo osungirako ali.
Zomangamanga zothetsera
Poganizira zofunikira pamwambapa, timapeza njira zomangira zotsatirazi.
Ma LUN ayenera kugawidwa mofanana pamasamba awiri kuti asachuluke kwambiri. Panthawi imodzimodziyo, mukamayesa m'malo onse a deta, musaphatikizepo voliyumu iwiri yokha (yomwe ili yofunikira kusunga deta nthawi imodzi pamakina awiri osungiramo), komanso kuwirikiza kawiri mu IOPS ndi MB/s kuti mupewe kuwonongeka kwa mapulogalamu mu chochitika cha kulephera kwa imodzi mwa malo opangira deta.
Payokha, tikuwona kuti ndi njira yoyenera yopangira kukula (ndiko kuti, ngati tapereka malire apamwamba a IOPS ndi MB / s, komanso zofunikira za CPU ndi RAM), ngati imodzi mwazinthu zosungirako metro cluster ikalephera, sipadzakhala kutsika kwakukulu kwa magwiridwe antchito pansi pamikhalidwe yakanthawi yogwira ntchito pakanthawi kosungirako.
Izi zikufotokozedwa ndi mfundo yakuti pamene malo awiri akugwira ntchito nthawi imodzi, kubwereza kwa synchronous "kudya" theka la ntchito yolemba, popeza ntchito iliyonse iyenera kulembedwa ku machitidwe awiri osungira (ofanana ndi RAID-1 / 10). Chifukwa chake, ngati imodzi mwazinthu zosungirako ikalephera, chikoka cha kubwereza kwakanthawi (mpaka makina osungira olephera achira) amatha, ndipo timapeza kuchulukitsa kawiri pakulemba. Pambuyo ma LUNs a makina osungira omwe alephera kuyambiranso kusungirako ntchito, kuwonjezeka kawiri uku kumasowa chifukwa chakuti katundu akuwonekera kuchokera ku LUNs ya dongosolo lina losungirako, ndipo timabwereranso ku mlingo womwewo wa ntchito zomwe tinali nazo kale. "kugwa", koma mkati mwa tsamba limodzi.
Mothandizidwa ndi kukula koyenera, mutha kuwonetsetsa kuti ogwiritsa ntchito sangamve kulephera kwa dongosolo lonse losungirako. Koma tikubwerezanso, izi zimafuna kusamala kwambiri, zomwe, mwa njira, mutha kulumikizana nafe kwaulere :-).
Kupanga metrocluster
Kukhazikitsa metrocluster ndikofanana ndi kukhazikitsa kubwereza pafupipafupi, komwe tidafotokozeramo . Choncho, tiyeni tione kusiyana kokha. Timakhazikitsa benchi mu labotale pogwiritsa ntchito zomangamanga pamwambapa, pokhapokha muzochepa: machitidwe awiri osungira omwe amagwirizanitsidwa kudzera pa 10G Ethernet, mawotchi awiri a 10G ndi gulu limodzi lomwe limayang'ana kupyolera muzitsulo zonse zosungirako zosungirako ndi madoko a 10G. Wothandizira amayenda pa makina enieni.
Mukakonza ma IP (VIPs) amtundu wina, muyenera kusankha mtundu wa VIP - wa metrocluster.
Tinapanga maulalo obwerezabwereza a ma LUN awiri ndikuwagawa pamakina awiri osungira: LUN TEST Primary pa system yosungirako 1 (METRO link), LUN TEST2 Primary for storage system 2 (METRO2 link).
Kwa iwo, tidakonza zolinga ziwiri zofanana (kwa ife iSCSI, koma FC imathandizidwanso, malingaliro okhazikitsira ndi ofanana).
Storage System1:
Storage System2:
Pamalumikizidwe obwerezabwereza, mapu adapangidwa pamtundu uliwonse wosungira.
Storage System1:
Storage System2:
Tinakhazikitsa multipath ndikuzipereka kwa wolandirayo.
Kupanga arbitrator
Simufunikanso kuchita chilichonse chapadera ndi arbiter yokha; muyenera kungoyambitsa patsamba lachitatu, perekani IP ndikusintha mwayi wopezeka nawo kudzera pa ICMP ndi SSH. Kukonzekera kokha kumachitidwa kuchokera ku machitidwe osungira okha. Pankhaniyi, ndikwanira kukonza arbiter kamodzi pa olamulira aliwonse osungira mu metrocluster; zosinthazi zidzagawidwa kwa olamulira onse basi.
Mugawo Kubwereza kwakutali >> Metrocluster (pa wowongolera aliyense) >> batani la "Sinthani".
Timalowetsa IP ya arbiter, komanso mawonekedwe olamulira a olamulira awiri akutali.
Pambuyo pake, muyenera kutsegula mautumiki onse (batani "Yambitsaninso Chilichonse"). Ngati zikonzedwanso m'tsogolomu, ntchito ziyenera kuyambidwanso kuti zokonda ziyambe kugwira ntchito.
Timayang'ana kuti mautumiki onse akuyenda.
Izi zimamaliza kukhazikitsidwa kwa metrocluster.
Mayeso owonongeka
Kuyesa kwangozi kwa ife kudzakhala kosavuta komanso kwachangu, popeza magwiridwe antchito (kusintha, kusasinthika, ndi zina) adakambidwa mu . Choncho, kuti tiyese kudalirika kwa metrocluster, ndikwanira kuti tiyang'ane zodziwikiratu za kulephera kuzindikira, kusinthana komanso kusakhalapo kwa kutayika kwa kujambula (I / O imayima).
Kuti tichite izi, timatsanzira kulephera kwathunthu kwa imodzi mwazosungirako mwa kuzimitsa olamulira ake onse, titayamba kukopera fayilo yaikulu ku LUN, yomwe iyenera kutsegulidwa pa njira ina yosungirako.
Zimitsani njira imodzi yosungirako. Pa dongosolo lachiwiri losungiramo timawona machenjezo ndi mauthenga mu zipika kuti kugwirizana ndi dongosolo loyandikana nalo latayika. Ngati zidziwitso kudzera pa SMTP kapena SNMP monitoring zakonzedwa, woyang'anira adzalandira zidziwitso zofananira.
Masekondi 10 ndendende pambuyo pake (zowoneka pazithunzi zonse ziwiri), kulumikizana kobwerezabwereza kwa METRO (kumene kunali Pulayimale pamakina osungira olephera) kunakhala Pulayimale pamakina osungira ogwirira ntchito. Pogwiritsa ntchito mapu omwe alipo, LUN TEST idakhalabe yopezeka kwa wolandirayo, zojambulirazo zidatsika pang'ono (mkati mwa 10 peresenti yolonjezedwa), koma sizinasokonezedwe.
Mayeso anamaliza bwino.
Mwachidule
Kukhazikitsidwa kwatsopano kwa metrocluster mu AERODISK Engine N-series yosungirako machitidwe amalola mokwanira kuthetsa mavuto pamene kuli kofunikira kuthetsa kapena kuchepetsa nthawi yochepetsera ntchito za IT ndikuwonetsetsa kuti ntchito yawo 24/7/365 ndi ndalama zochepa zogwirira ntchito.
Tikhoza kunena, ndithudi, kuti zonsezi ndi chiphunzitso, mikhalidwe yabwino ya labotale, ndi zina zotero ... KOMA tili ndi mapulojekiti angapo omwe tagwiritsidwa ntchito momwe tagwiritsira ntchito zowononga masoka, ndipo machitidwe amagwira ntchito bwino. Mmodzi mwa makasitomala athu odziwika bwino, omwe amagwiritsa ntchito njira ziwiri zosungirako zosungirako zowonongeka, adavomereza kale kufalitsa zambiri za polojekitiyi, kotero mu gawo lotsatira tidzakambirana za kukhazikitsa nkhondo.
Zikomo, tikuyembekezera kukambirana kopindulitsa.
Source: www.habr.com