Chonde musathamangire kuganiza chifukwa chamutu! Tili ndi zifukwa zomveka zoikira kumbuyo, ndipo tazinyamula mophatikizika momwe tingathere. Tikukudziwitsani zonena za lingaliro ndi mfundo zamagwiritsidwe ntchito ka makina athu atsopano osungira, omwe adatulutsidwa mu Januware 2020.
M'malingaliro athu, mwayi waukulu wampikisano wa banja la Dorado V6 yosungirako umaperekedwa ndi magwiridwe antchito ndi kudalirika komwe kumatchulidwa pamutuwu. Inde, inde, ndi zophweka, koma ndi zisankho ziti zachinyengo komanso zopanda chinyengo zomwe tinakwanitsa kukwaniritsa "zosavuta" izi, tidzakambirana lero.
Kuti tithe kutulutsa bwino kuthekera kwa machitidwe a mibadwo yatsopano, tidzakambirana za oimira akale amitundu yamitundu (zitsanzo 8000, 18000). Pokhapokha atanenedwa mwanjira ina, iwo amayenera kukhala.
Mawu ochepa okhudza msika
Kuti timvetsetse bwino momwe mayankho a Huawei pamsika, tiyeni titembenukire ku njira yotsimikiziridwa - "Β»Gartner. Zaka ziwiri zapitazo, mu gawo la magawo a disk array, kampani yathu idalowa gulu la atsogoleri molimba mtima, lachiwiri kwa NetApp ndi Hewlett Packard Enterprise. Udindo wa Huawei pamsika wosungirako SSD mu 2018 umadziwika ndi "wotsutsa", koma china chake chinali kusowa kuti akwaniritse utsogoleri.
Mu 2019, Gartner, mu kafukufuku wake, adaphatikiza magawo awiriwa kukhala amodzi - "Main Storage". Zotsatira zake, Huawei adakhalanso m'gulu la atsogoleri, pafupi ndi ogulitsa monga IBM, Hitachi Vantara ndi Infinidat.
Kuti titsirize chithunzichi, tikuwona kuti Gartner amasonkhanitsa 80% ya deta kuti afufuze pamsika wa US, ndipo izi zimabweretsa kukondera kwakukulu mokomera makampani omwe amaimiridwa bwino ku US. Pakadali pano, ogulitsa omwe amayang'ana kumisika yaku Europe ndi Asia akupeza kuti ali ndi mwayi wocheperako. Ngakhale izi, chaka chatha zinthu za Huawei zidatenga malo awo oyenerera kumtunda wakumanja ndipo, malinga ndi chigamulo cha Gartner, "atha kulangizidwa kuti agwiritse ntchito."
Zatsopano mu Dorado V6
Mzere wa mankhwala a Dorado V6, makamaka, umayimiridwa ndi machitidwe olowera-level 3000. Poyamba ali ndi olamulira awiri, akhoza kufalikira mozungulira kwa olamulira a 16, 1200 drives ndi 192 GB ya cache. Komanso, dongosololi lidzakhala ndi zida zakunja za Fiber Channel (8 / 16 / 32 Gb / s) ndi Ethernet (1 / 10 / 25 / 40 / 100 Gb / s) madoko.
Zindikirani kuti kugwiritsa ntchito ma protocol omwe alibe phindu lamalonda tsopano akutha, kotero pachiyambi tinaganiza zosiya kuthandizira Fiber Channel pa Ethernet (FCoE) ndi Infiniband (IB). Adzawonjezedwa mumitundu ina ya firmware. Thandizo la NVMe over Fabric (NVMe-oF) likupezeka m'bokosi pamwamba pa Fiber Channel. Firmware yotsatira, yomwe ikukonzekera kumasulidwa mu June, ikukonzekera kuthandizira NVMe pa Ethernet mode. M'malingaliro athu, zomwe zili pamwambapa sizikwaniritsa zosowa za makasitomala ambiri a Huawei.
Kufikira kwamafayilo sikukupezeka mu mtundu wamakono wa firmware ndipo iziwoneka muzosintha zina kumapeto kwa chaka. Kukhazikitsa kumaganiziridwa pamlingo wamba, ndi olamulira okha omwe ali ndi madoko a Ethernet, popanda kugwiritsa ntchito zida zowonjezera.
Kusiyana kwakukulu pakati pa mtundu wa Dorado V6 3000 ndi okalamba ndikuti amathandizira protocol imodzi kumbuyo - SAS 3.0. Chifukwa chake, zoyendetsa kumeneko zitha kugwiritsidwa ntchito ndi mawonekedwe otchulidwa. Kuchokera kumalingaliro athu, magwiridwe antchito operekedwa ndi izi ndiwokwanira pa chipangizo chamtunduwu.
Dongosolo la Dorado V6 5000 ndi 6000 ndi mayankho apakatikati. Amapangidwanso mu mawonekedwe a 2U ndipo ali ndi owongolera awiri. Amasiyana wina ndi mzake pakuchita, kuchuluka kwa ma processor, kuchuluka kwa ma disks ndi kukula kwa cache. Komabe, m'mawu omanga ndi zomangamanga, Dorado V6 5000 ndi 6000 ndizofanana ndipo zimawoneka chimodzimodzi.
Kalasi ya hi-end imaphatikizapo machitidwe a mndandanda wa Dorado V6 8000 ndi 18000. Zopangidwa mu kukula kwa 4U, zimakhala ndi zomangamanga zosiyana, zomwe olamulira ndi oyendetsa amasiyanitsidwa. Atha kubweranso ndi owongolera awiri ochepa, ngakhale makasitomala nthawi zambiri amafunsa anayi kapena kupitilira apo.
Dorado V6 8000 sikelo mpaka 16 olamulira, ndipo Dorado V6 18000 sikelo mpaka 32. Makinawa ali ndi mapurosesa osiyanasiyana okhala ndi manambala osiyanasiyana a cores ndi cache size. Pa nthawi yomweyi, zidziwitso za mayankho a uinjiniya zimasungidwa, monga momwe zilili m'makalasi apakati.
Mashelefu osungira a 2U amalumikizidwa kudzera pa RDMA yokhala ndi bandwidth ya 100 Gb / s. Dorado V6 yakale kumbuyo imathandiziranso SAS 3.0, koma zambiri ngati ma SSD omwe ali ndi mawonekedwe awa atsika mtengo kwambiri. Ndiye padzakhala kuthekera kwachuma kwa ntchito yawo ngakhale poganizira zokolola zochepa. Pakalipano, kusiyana kwa mtengo pakati pa SSD ndi SAS ndi NVMe interfaces ndi kochepa kwambiri kotero kuti sitili okonzeka kulangiza yankho lotere.
Mkati mwa controller
Owongolera a Dorado V6 amapangidwa pazoyambira zathu. Palibe mapurosesa ochokera ku Intel, palibe ma ASIC ochokera ku Broadcom. Chifukwa chake, gawo lililonse la bolodi la mavabodi, komanso bolodi lokhalo, limachotsedwa kwathunthu ku chiwopsezo chokhudzana ndi kukakamizidwa kwa zilango kuchokera kumakampani aku America. Iwo omwe awona zida zathu zilizonse ndi maso awo mwina awona zishango zokhala ndi mzere wofiira pansi pa logo. Zikutanthauza kuti mankhwalawa alibe zigawo za America. Uwu ndiye maphunziro ovomerezeka a Huawei - kusintha kwa magawo ake, kapena, mulimonse, opangidwa m'maiko omwe satsatira mfundo za US.
Izi ndi zomwe mukuwona pa bolodi lowongolera palokha.
- Universal network interface (Hisilicon 1822 chip) yomwe imayang'anira kulumikizana ndi Fiber Channel kapena Ethernet.
- Kupereka kupezeka kwakutali kwa dongosolo la BMC chip, lomwe ndi Hisilicon 1710, kuti liziwongolera kutali komanso kuyang'anira dongosolo. Zofananazi zimagwiritsidwanso ntchito m'maseva athu komanso mumayankho ena.
- Chigawo chapakati chopangira, chomwe ndi chipangizo cha Kunpeng 920 chomangidwa pamapangidwe a ARM, opangidwa ndi Huawei. Ndi iye amene akuwonetsedwa mu chithunzi pamwambapa, ngakhale olamulira ena angakhale ndi zitsanzo zosiyana ndi chiwerengero chosiyana cha ma cores, liwiro la wotchi yosiyana, etc. Chiwerengero cha mapurosesa mu wolamulira mmodzi amasinthanso kuchokera ku chitsanzo kupita ku chitsanzo. Mwachitsanzo, mu mndandanda wakale wa Dorado V6, pali anayi pa bolodi limodzi.
- SSD controller (Hisilicon 1812e chip) yomwe imathandizira ma drive onse a SAS ndi NVMe. Kuphatikiza apo, Huawei amadzipangira okha ma SSD, koma samadzipangira okha ma cell a NAND, amakonda kuwagula kuchokera kwa opanga anayi akuluakulu padziko lonse lapansi ngati ma silicon odulidwa osadulidwa. Kudula, kuyesa ndi kuyika mu tchipisi Huawei amadzipangira yekha, pambuyo pake amawamasula pansi pa mtundu wake.
- Chip chanzeru chochita kupanga ndi Ascend 310. Mwachikhazikitso, sichipezeka pa wolamulira ndipo chimayikidwa kudzera pa khadi losiyana, lomwe limakhala ndi imodzi mwa mipata yomwe imasungidwa kwa ma adapter network. Chipchi chimagwiritsidwa ntchito popereka machitidwe anzeru a cache, kasamalidwe ka magwiridwe antchito kapena kuchotsera ndi njira zopondereza. Ntchito zonsezi zitha kuthetsedwa mothandizidwa ndi purosesa yapakati, koma AI chip imakulolani kuchita izi bwino kwambiri.
Payokha za Kunpeng processors
Purosesa ya Kunpeng ndi kachitidwe pa chip (SoC) komwe, kuphatikiza pagawo la kompyuta, pali ma module a hardware omwe amafulumizitsa njira zosiyanasiyana, monga kuwerengera ma checksums kapena kupanga erasure coding. Imagwiritsanso ntchito chithandizo cha hardware kwa SAS, Ethernet, DDR4 (kuchokera kumayendedwe asanu ndi limodzi mpaka asanu ndi atatu), ndi zina zotero.
Kuphatikiza apo, mayankho okhudzana ndi kamangidwe ka ARM amathandizira Huawei kupanga mayankho athunthu a seva ndikuwapereka kwa makasitomala ake ngati njira ina ya x86.
Zomangamanga Zatsopano za Dorado V6β¦
Zomangamanga zamkati zamakina osungira Dorado V6 amndandanda akale akuimiridwa ndi magawo anayi akuluakulu (mafakitale).
Fakitale yoyamba ndi yodziwika bwino (malo ochezera a pa intaneti omwe ali ndi udindo wolumikizana ndi fakitale ya SAN kapena makamu).
Chachiwiri ndi gulu la olamulira, omwe aliyense angathe "kufikira" kudzera pa protocol ya RDMA ku khadi lililonse lakutsogolo lakutsogolo ndi "injini" yoyandikana nayo, yomwe ndi bokosi lokhala ndi olamulira anayi, komanso mphamvu ndi kuziziritsa. mayunitsi ofanana nawo. Tsopano zitsanzo zamtundu wa Dorado V6 zimatha kukhala ndi "injini" ziwiri zotere (motsatira, olamulira asanu ndi atatu).
Fakitale yachitatu imayang'anira kumbuyo ndipo imakhala ndi makhadi a netiweki a RDMA 100G.
Pomaliza, fakitale yachinayi "mu hardware" imayimiridwa ndi mashelufu osungira anzeru.
Dongosolo lofananirali limatulutsa kuthekera konse kwaukadaulo wa NVMe ndikutsimikizira magwiridwe antchito komanso kudalirika. Njira ya I / O imafanana kwambiri ndi mapurosesa ndi ma cores, kupereka kuwerenga ndi kulemba nthawi imodzi ku ulusi wambiri.
... ndi zomwe adatipatsa
Kuchita kwakukulu kwa mayankho a Dorado V6 ndi pafupifupi katatu kuposa kachitidwe ka mibadwo yam'mbuyo (ya gulu lomwelo) ndipo imatha kufika 20 miliyoni IOPS.
Izi ndichifukwa choti m'badwo wakale wa zida, chithandizo cha NVMe chimangowonjezera mashelufu okhala ndi ma drive. Tsopano ilipo pazigawo zonse, kuchokera kwa wolandirayo kupita ku SSD. Network backend yasinthanso: SAS/PCIe yapereka njira ku RoCEv2 yokhala ndi 100 Gb/s.
Fomu ya SSD yasinthanso. Ngati m'mbuyomu panali ma drive 2 pa shelufu ya 25U, tsopano yabweretsedwa mpaka ma disks 36 amtundu wa kanjedza. Kuonjezera apo, mashelufu "anzeru." Aliyense wa iwo tsopano ali ndi dongosolo lololera zolakwika la olamulira awiri kutengera tchipisi ta ARM, zofanana ndi zomwe zimayikidwa pakati pa olamulira.
Pakalipano, akungogwira ntchito yokonzanso deta, koma ndi kutulutsidwa kwa firmware yatsopano, kupanikizika ndi kufufuta coding zidzawonjezedwa kwa izo, zomwe zidzachepetsa katundu pa olamulira akuluakulu kuchokera ku 15 mpaka 5%. Kusamutsa ntchito zina ku alumali nthawi yomweyo kumamasula bandwidth ya netiweki yamkati. Ndipo zonsezi zimakulitsa kwambiri kuthekera kwa scalability kwa dongosolo.
Kuponderezana ndi kuchotsera mumbadwo wam'mbuyo wosungirako kunkachitika ndi midadada yokhazikika. Tsopano, njira yogwirira ntchito yokhala ndi midadada ya kutalika kosiyanasiyana yawonjezeredwa, yomwe mpaka pano ikufunika kuyatsidwa mokakamiza. Zosintha zotsatila zitha kusintha izi.
Komanso mwachidule za kulolerana zolephera. Dorado V3 idakhalabe ikugwira ntchito ngati m'modzi mwa owongolera awiriwa adalephera. Dorado V6 adzaonetsetsa kupezeka kwa deta ngakhale asanu olamulira asanu ndi atatu akulephera motsatizana kapena anayi mwa injini imodzi kulephera imodzi.
Kudalirika pankhani zachuma
Posachedwapa, kafukufuku adachitika pakati pa makasitomala a Huawei pa kuchuluka kwa nthawi yocheperako yazinthu zamtundu wa IT zomwe kampaniyo imawona kuti ndiyovomerezeka. Kwa mbali zambiri, omwe anafunsidwa anali olekerera zochitika zongopeka zomwe ntchitoyo siyiyankha mkati mwa masekondi mazana angapo. Kwa opareshoni kapena adaputala ya mabasi, masekondi makumi (nthawi yoyambiranso) inali nthawi yovuta kwambiri. Makasitomala amayika zofunikira kwambiri pamaneti: bandwidth yake siyenera kutha kwa masekondi opitilira 10-20. Monga momwe mungaganizire, omwe adafunsidwa kwambiri adawona kulephera kwa makina osungira. Kuchokera kwa oimira bizinesi, kusungirako kosavuta sikuyenera kupitirira ... masekondi angapo pachaka!
Mwanjira ina, ngati kasitomala wa banki sayankha kwa masekondi 100, izi sizingabweretse zotsatira zoyipa. Koma ngati zosungirako sizigwira ntchito mofananamo, kuyimitsidwa kwa bizinesi ndi kutayika kwakukulu kwachuma ndizotheka.
Tchati pamwambapa chikuwonetsa mtengo wa ola la ntchito kwa mabanki khumi akulu (Forbes data ya 2017). Gwirizanani, ngati kampani yanu ikuyandikira kukula kwa mabanki aku China, sizingakhale zovuta kufotokoza kufunika kogula makina osungiramo madola mamiliyoni angapo. Mawu otsutsana nawonso ndi olondola: ngati bizinesi sichitha kuwonongeka kwakukulu panthawi yopuma, ndiye kuti sizingatheke kugula makina osungiramo zinthu zakale. Mulimonsemo, ndikofunikira kukhala ndi lingaliro la kukula kwa dzenje lomwe likuwopseza kupanga chikwama chanu pomwe woyang'anira dongosolo amayang'anira zosungira zomwe zakana kugwira ntchito.
Wachiwiri pa olephera
Mu Solution A mu chithunzi pamwambapa, mutha kuzindikira dongosolo lathu lakale la Dorado V3. Olamulira ake anayi amagwira ntchito awiriawiri, ndipo olamulira awiri okha ali ndi makope a cache. Olamulira mkati mwa awiriwa akhoza kugawanso katunduyo. Panthawi imodzimodziyo, monga momwe mukuonera, palibe "mafakitole" apatsogolo ndi kumbuyo, kotero kuti mashelufu aliwonse osungira amagwirizanitsidwa ndi olamulira enieni.
Chithunzi cha Solution B chikuwonetsa yankho lomwe lili pamsika kuchokera kwa wogulitsa wina (odziwika?). Pali kale mafakitale akutsogolo ndi kumbuyo kuno, ndipo ma drive amalumikizidwa ndi owongolera anayi nthawi imodzi. Zowona, pali ma nuances omwe sakuwonekera pakuyerekeza koyamba mu ntchito ya ma aligorivimu amkati mwadongosolo.
Kumanja kuli malo athu osungira a Dorado V6 omwe ali ndi gulu lonse lamkati. Ganizirani momwe machitidwewa amapulumutsira zochitika zenizeni - kulephera kwa wolamulira mmodzi.
Mu machitidwe akale, omwe akuphatikizapo Dorado V3, nthawi yofunikira kugawanso katunduyo ngati ikulephera kufika masekondi anayi. Panthawi imeneyi, I/O imasiya kwathunthu. Yankho B kuchokera kwa anzathu, ngakhale mamangidwe amakono, ali ndi nthawi yotsika kwambiri pakulephera kwa masekondi asanu ndi limodzi.
Kusungirako Dorado V6 kubwezeretsa ntchito yake mu sekondi imodzi yokha pambuyo kulephera. Izi zimatheka chifukwa cha malo osakanikirana a RDMA omwe amalola wowongolera kuti azitha kukumbukira "zachilendo". Chinthu chachiwiri chofunikira ndi kukhalapo kwa fakitale yakutsogolo, chifukwa chake njira ya wolandirayo sikusintha. Doko limakhalabe lomwelo, ndipo katunduyo amangotumizidwa kwa olamulira athanzi ndi madalaivala ambiri.
Kulephera kwa wolamulira wachiwiri ku Dorado V6 kumagwiritsidwa ntchito mu sekondi imodzi malinga ndi ndondomeko yomweyi. Dorado V3 imatenga pafupifupi masekondi asanu ndi limodzi, ndipo yankho la wogulitsa wina limatenga zisanu ndi zinayi. Kwa DBMS ambiri, nthawi zoterezi sizingaganizidwe kuti ndizovomerezeka, chifukwa panthawiyi dongosololi limasinthidwa kukhala standby mode ndikusiya kugwira ntchito. Izi poyamba zimakhudza DBMS yopangidwa ndi zigawo zambiri.
Kulephera kwa wolamulira wachitatu Yankho A silingathe kupulumuka. Mwachidule chifukwa chakuti mwayi wa gawo la ma disks a data watayika. Komanso, Solution B muzochitika zotere imabwezeretsa mphamvu yake yogwira ntchito, yomwe imatenga, monga momwe zinalili kale, masekondi asanu ndi anayi.
Kodi mu Dorado V6 ndi chiyani? Sekondi imodzi.
Zomwe zingatheke pakamphindi
Pafupifupi kanthu, koma sitikuzifuna. Apanso, mu Dorado V6 ya kalasi yomaliza, fakitale yakutsogolo imachotsedwa pafakitale yowongolera. Izi zikutanthauza kuti palibe madoko olimba amtundu wina. Kulephera sikuphatikiza kupeza njira zina kapena kuyambiranso kuchulukitsa. Dongosololi likupitilizabe kugwira ntchito monga kale.
Kangapo kulephera kulolerana
Mitundu yakale ya Dorado V6 imatha kupulumuka mosavuta kulephera kwanthawi imodzi kwa olamulira awiri (!) kuchokera ku "injini" iliyonse. Izi zimatheka chifukwa yankho tsopano likusunga makope atatu a cache. Choncho, ngakhale kulephera kawiri, padzakhala nthawi zonse kope lathunthu.
Kulephera kwa synchronous kwa olamulira onse anayi mu imodzi mwa "injini" sikudzabweretsa zotsatira zoopsa, chifukwa makope onse atatu a cache amagawidwa pakati pa "injini" nthawi iliyonse. Dongosolo lokhalo limayang'anira kutsatiridwa ndi malingaliro otere a ntchito.
Pomaliza, zomwe sizikuwoneka bwino ndi kulephera kotsatizana kwa owongolera asanu ndi awiri mwa asanu ndi atatu. Kuphatikiza apo, nthawi yocheperako yovomerezeka yosunga magwiridwe antchito pakati pa zolephera zapayekha ndi mphindi 15. Panthawiyi, makina osungira amakhala ndi nthawi yochita ntchito zofunika kuti cache isamuke.
Wotsiriza wotsalira adzayendetsa sitolo ya deta ndikusunga cache kwa masiku asanu (mtengo wokhazikika, womwe ungasinthidwe mosavuta pazikhazikiko). Pambuyo pake, cache idzayimitsidwa, koma makina osungira adzapitiriza kugwira ntchito.
Zosintha zosasokoneza
Dongosolo latsopano la OS Dorado V6 limakupatsani mwayi wosinthira firmware yosungira popanda kuyambitsanso owongolera.
Makina ogwiritsira ntchito, monga momwe adayankhira kale, amachokera ku Linux, komabe, njira zambiri zogwirira ntchito zasamutsidwa kuchokera ku kernel kupita kumalo ogwiritsira ntchito. Ntchito zambiri, monga zomwe zimathandizira kutsitsa ndi kuponderezana, tsopano ndi ma daemoni okhazikika kumbuyo. Chotsatira chake, sikoyenera kusintha machitidwe onse opangira ma modules. Tiyerekeze, kuti muwonjezere chithandizo cha protocol yatsopano, zidzangofunika kuzimitsa pulogalamu yofananira ndikuyamba ina.
Zikuwonekeratu kuti nkhani zosinthira dongosolo lonselo zikadalipobe, chifukwa pakhoza kukhala zinthu mu kernel zomwe ziyenera kusinthidwa. Koma iwo, malinga ndi zomwe tawona, ndi ochepera 6% ya chiwerengero chonse. Izi zimakupatsani mwayi woyambitsanso zowongolera nthawi khumi kuposa kale.
Njira zothetsera masoka komanso kupezeka kwakukulu (HA/DR).
Dorado V6 yatuluka m'bokosi ili yokonzeka kuphatikizidwa muzothetsera zogawidwa ndi geo, magulu amtundu wamizinda (metro) ndi malo "atatu" a data.
Kumanzere kwa chithunzi pamwambapa pali gulu la metro lomwe limadziwika kale kwa ambiri. Makina awiri osungira amagwira ntchito yogwira / yogwira pamtunda wa 100 km kuchokera wina ndi mnzake. Zomangamanga zotere zomwe zili ndi seva imodzi kapena zingapo za quorum zitha kuthandizidwa ndi mayankho ochokera kumakampani osiyanasiyana, kuphatikiza makina athu amtambo a FusionSphere. Chofunika kwambiri pamapulojekiti oterowo ndi mawonekedwe a njira pakati pa malo, ntchito zina zonse mwa ife zimatengedwa ndi ntchito ya HyperMetro, yomwe ilipo, kachiwiri, kunja kwa bokosi. Kuphatikiza ndikotheka pa Fiber Channel, komanso pa iSCSI mumanetiweki a IP, ngati pakufunika kutero. Sipafunikanso kukhalapo kovomerezeka kwa ma optics odzipatulira "akuda", popeza dongosololi limatha kulumikizana kudzera mumayendedwe omwe alipo.
Pomanga machitidwe oterowo, chofunikira chokha cha hardware chosungirako ndikugawa madoko kuti abwereze. Ndikokwanira kugula laisensi, kuyendetsa ma seva a quorum - akuthupi kapena enieni - ndikupereka kulumikizana kwa IP kwa owongolera (10 Mbps, 50 ms).
Zomangamangazi zitha kusamutsidwa mosavuta kudongosolo lomwe lili ndi malo atatu a data (onani kumanja kwa fanizo). Mwachitsanzo, pamene malo awiri a data akugwira ntchito mumagulu a metro, ndipo malo achitatu, omwe ali pamtunda wa makilomita oposa 100, amagwiritsa ntchito kubwereza kwa asynchronous.
Dongosololi mwaukadaulo limathandizira zochitika zosiyanasiyana zamabizinesi zomwe zidzakwaniritsidwe pakachitika kuchuluka kwakukulu.
Kupulumuka kwa gulu la metro lomwe lili ndi zolephera zingapo
Zomwe zili pamwambapa ndi pansipa zikuwonetsanso gulu lakale la metro, lomwe lili ndi makina awiri osungira ndi seva ya quorum. Monga mukuwonera, muzochitika zisanu ndi chimodzi mwa zisanu ndi zinayi zomwe zingalephereke kangapo, zomangamanga zathu zizikhala zikugwira ntchito.
Mwachitsanzo, muzochitika zachiwiri, ngati seva ya quorum ikulephera ndikugwirizanitsa pakati pa malo, dongosololi limakhalabe lopindulitsa, chifukwa malo achiwiri amasiya kugwira ntchito. Khalidweli lapangidwa kale mu ma aligorivimu omangidwa.
Ngakhale zitalephera katatu, mwayi wodziwa zambiri ukhoza kusungidwa ngati nthawi pakati pawo ndi masekondi osachepera 15.
Lipenga mwachizolowezi kuchokera m'manja
Kumbukirani kuti Huawei samapanga makina osungira okha, komanso zida zonse zapaintaneti. Mulimonse momwe mungasankhire wosungirako, ngati netiweki ya WDM ikugwiritsidwa ntchito pakati pamasamba, mu 90% yamilandu idzamangidwa pamayankho a kampani yathu. Funso lomveka likubuka: chifukwa chiyani kusonkhanitsa zoo ya machitidwe pamene zida zonse zomwe zimatsimikiziridwa kuti zimagwirizana wina ndi mzake zingapezeke kuchokera kwa wogulitsa mmodzi?
Ku funso la magwiridwe antchito
Mwinamwake, palibe amene akuyenera kutsimikiza kuti kusintha kwa All-Flash storage kungachepetse kwambiri ndalama zowonongeka, chifukwa ntchito zonse zachizoloΕ΅ezi zimachitika mofulumira kwambiri. Onse ogulitsa zida zotere amachitira umboni izi. Pakadali pano, ogulitsa ambiri akuyamba kukhala ochenjera pankhani yakuwonongeka kwa magwiridwe antchito pomwe mitundu yosiyanasiyana yosungira imayatsidwa.
M'makampani athu, amagwiritsidwa ntchito kwambiri kutulutsa njira zosungirako zoyeserera kwa tsiku limodzi kapena awiri. Wogulitsa amayesa kuyesa kwa mphindi 20 pa dongosolo lopanda kanthu, kupeza ziwerengero za cosmic performance. Ndipo pogwira ntchito, "ma rakes apansi pamadzi" amakwawa mwachangu. Pambuyo pa tsiku, mitengo yokongola ya IOPS idachepetsedwa ndi theka kapena katatu, ndipo ngati malo osungirako adzazidwa ndi 80%, amakhala ocheperako. Mukayatsa RAID 5 m'malo mwa RAID 10, 10-15% ina imatayika, ndipo mumayendedwe a metro-cluster, magwiridwe antchito amachepetsedwa ndi theka.
Chilichonse chomwe chatchulidwa pamwambapa sichikukhudza Dorado V6. Makasitomala athu ali ndi mwayi woyesa mayeso kumapeto kwa sabata kapena usiku umodzi. Kenako kusonkhanitsa zinyalala kumadziwonetsera, ndipo zimawonekeranso momwe kutsegula kwa zosankha zosiyanasiyana - monga zithunzithunzi ndi kubwereza - kumakhudza kuchuluka kwa IOPS komwe kumapezeka.
Mu Dorado V6, zithunzithunzi ndi RAID molingana zilibe kanthu pakuchita (3-5% m'malo mwa 10-15%). Kutolera zinyalala (kudzaza ma cell oyendetsa ndi ziro), kuponderezana, kutsitsa pamakina osungira omwe ali ndi 80% yodzaza nthawi zonse kumakhudza liwiro lonse la pempho. Koma ndi Dorado V6 kuti ndi chidwi kuti, ziribe kanthu kuphatikiza ntchito ndi njira zoteteza inu yambitsa, komaliza yosungirako ntchito si kugwa pansi 80% ya chiwerengero analandira popanda katundu.
Katundu kusanja
Kuchita kwapamwamba kwa Dorado V6 kumatheka ndi kusanja pagawo lililonse, lomwe ndi:
- kuchulukitsa;
- kugwiritsa ntchito maulumikizidwe angapo kuchokera ku gulu limodzi;
- kupezeka kwa fakitale yakutsogolo;
- kufanana kwa ntchito ya olamulira osungira;
- kugawa katundu pamagalimoto onse pamlingo wa RAID 2.0+.
Kwenikweni, izi ndizofala. Masiku ano, anthu ochepa amasunga zonse pa LUN imodzi: aliyense akuyesera kukhala ndi eyiti, ngakhale makumi anayi, kapena kupitilira apo. Iyi ndi njira yodziwikiratu komanso yolondola, yomwe timagawana. Koma ngati ntchito yanu ikufuna LUN imodzi yokha, yomwe ndiyosavuta kuyisamalira, mayankho athu omanga amalola kuti akwaniritse 80% ya magwiridwe antchito omwe amapezeka ndi ma LUN angapo.
Kukonzekera kwa Dynamic CPU
Kugawidwa kwa katundu pa mapurosesa pogwiritsa ntchito LUN imodzi kumayendetsedwa motere: ntchito pa mlingo wa LUN zimagawidwa m'magulu ang'onoang'ono ang'onoang'ono a "shards", omwe amaperekedwa mokhazikika kwa wolamulira wina mu "injini". Izi zachitika kuti dongosolo lisataye ntchito pomwe "likudumpha" ndi chidutswa cha data pa olamulira osiyanasiyana.
Njira inanso yopititsira patsogolo magwiridwe antchito ndikusintha kosinthika, momwe ma processor cores ena amatha kugawidwa m'magawo osiyanasiyana a ntchito. Mwachitsanzo, ngati dongosolo tsopano silikugwira ntchito pamlingo wa deduplication ndi compression, ndiye kuti ma cores ena atha kukhala nawo pantchito yotumizira I / O. Kapena mosemphanitsa. Zonsezi zimachitika zokha komanso zowonekera kwa wogwiritsa ntchito.
Deta pa katundu wapano wa aliyense wa Dorado V6 cores si kuwonetsedwa mu mawonekedwe azithunzi, koma kudzera pamzere wamalamulo mutha kulumikiza olamulira Os ndikugwiritsa ntchito lamulo la Linux mwachizolowezi. pamwamba.
NVMe ndi RoCE thandizo
Monga tanena kale, Dorado V6 pakadali pano imathandizira NVMe pa Fiber Channel kunja kwa bokosilo ndipo safuna zilolezo zilizonse. Pakatikati pa chaka, chithandizo cha NVMe pa Ethernet mode chidzawonekera. Kuti mugwiritse ntchito mokwanira, mudzafunika thandizo la Efaneti yokhala ndi mwayi wofikira molunjika (DMA) v2.0 kuchokera ku makina osungira okha komanso kuchokera ku masiwichi ndi ma adapter network. Mwachitsanzo, monga Mellanox ConnectX-4 kapena ConnectX-5. Mutha kugwiritsanso ntchito makhadi amtaneti opangidwa pamaziko a tchipisi tathu. Komanso, thandizo la RoCE liyenera kukhazikitsidwa pamakina ogwiritsira ntchito.
Ponseponse, timawona kuti Dorado V6 ndi dongosolo la NVMe-centric. Ngakhale kuthandizira komwe kulipo kwa Fiber Channel ndi iSCSI, mtsogolomo ikukonzekera kusintha ku Ethernet yothamanga kwambiri ndi RDMA.
Kutsatsa pang'ono
Chifukwa chakuti dongosolo la Dorado V6 ndilololera kwambiri zolakwika, mamba bwino, amathandiza matekinoloje osiyanasiyana osamukira, ndi zina zotero, zotsatira zachuma za kupeza kwake zimawonekera ndi kuyamba kwa kugwiritsa ntchito kwambiri machitidwe osungira. Tidzapitirizabe kuyesa kupanga umwini wa dongosolo kukhala wopindulitsa momwe tingathere, ngakhale ngati pa gawo loyamba sizikuwonekera.
Makamaka, tapanga pulogalamu ya FLASH EVER yokhudzana ndi kukulitsa moyo wamakina osungira ndikukonzekera kutsitsa makasitomala momwe tingathere pakukweza.
Pulogalamuyi ili ndi njira zingapo:
- Kutha kusintha pang'onopang'ono olamulira ndi mashelufu a disk ndi mitundu yatsopano popanda kusintha zida zonse (za Dorado V6 hi-end system);
- kuthekera kosungirako kophatikizana (kuphatikiza mitundu yosiyanasiyana ya Dorado ngati gawo la gulu limodzi losungirako zosakanizidwa);
- smartization (kutha kugwiritsa ntchito zida za chipani chachitatu monga gawo la yankho la Dorado).
Kuyenera kudziΕ΅ika kuti mkhalidwe wovuta mβdziko sunasonkhezere kwenikweni ziyembekezo zamalonda za dongosolo latsopano. Ngakhale kuti kutulutsidwa kwa boma kwa Dorado V6 kunachitika kokha mu Januwale, tikuwona kufunika kwakukulu kwa izo ku China, komanso chidwi chachikulu nacho kuchokera ku Russia ndi mayiko akunja kuchokera kumagulu azachuma ndi boma.
Mwa zina, zokhudzana ndi mliriwu, ngakhale atakhala nthawi yayitali bwanji, nkhani yopatsa antchito akutali ndi ma desktops enieni ndiyovuta kwambiri. Pochita izi, Dorado V6 imathanso kuchotsa mafunso ambiri. Kuti izi zitheke, tikuyesetsa kuchita zonse zofunika, kuphatikiza kuvomereza kuphatikizidwa kwa dongosolo latsopanoli pamndandanda wamtundu wa VMware.
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Source: www.habr.com