Ngicela ungagxumi ufinyelele eziphethweni ngenxa yesihloko! Sinezimpikiswano ezinzima zokuyisekela, futhi sizipakishe ngokuhlangene ngangokunokwenzeka. Sikulethela okuthunyelwe mayelana nomqondo nezimiso zokusebenza kwesistimu yethu entsha yokugcina izinto, ekhishwe ngoJanuwari 2020.
Ngokombono wethu, inzuzo eyinhloko yokuncintisana yomndeni wesitoreji se-Dorado V6 inikezwa ukusebenza nokuthembeka okukhulunywe ngakho esihlokweni. Yebo, yebo, kulula kakhulu, kodwa yiziphi izinqumo ezikhohlisayo nezingezona eziyinkimbinkimbi esakwazi ukufeza lokhu "okulula", sizokhuluma namuhla.
Ukuze sikwazi ukukhulula kangcono amandla ezinhlelo zesizukulwane esisha, sizokhuluma ngabameleli abadala bebanga lamamodeli (amamodeli 8000, 18000). Ngaphandle kwalapho kushiwo ngenye indlela, kuhloswe ukuba kube njalo.
Amagama ambalwa mayelana nemakethe
Ukuze uqonde kangcono indawo yezixazululo zeHuawei emakethe, ake siphendukele ku-yardstick efakazelwe - "» Gartner. Eminyakeni emibili edlule, emkhakheni we-disk array yezinhloso ezijwayelekile, inkampani yethu yangena ngokuzethemba eqenjini labaholi, ilandela i-NetApp kanye ne-Hewlett Packard Enterprise. Isikhundla sikaHuawei emakethe yesitoreji se-SSD ngo-2018 sabonakala ngesimo "somngenisi", kodwa kukhona okwakushoda ukufeza isikhundla sobuholi.
Ngo-2019, uGartner, ocwaningweni lwakhe, wahlanganisa yomibili le mikhakha engenhla yaba yinto eyodwa - "Isitoreji Esiyinhloko". Ngenxa yalokhu, uHuawei uphinde waba sesikhundleni somholi, eduze nabathengisi abanjengo-IBM, uHitachi Vantara no-Infinidat.
Ukuze siqedele lesi sithombe, siyaqaphela ukuthi u-Gartner uqoqa u-80% wedatha ukuze ihlaziywe emakethe yase-US, futhi lokhu kuholela ekuchemani okubalulekile okuvuna lezo zinkampani ezimelwe kahle e-US. Ngaleso sikhathi, abahlinzeki abagxile ezimakethe zase-Europe nase-Asia bazithola besesimweni esingesizo kangako. Naphezu kwalokhu, ngonyaka odlule imikhiqizo ye-Huawei yathatha indawo efanelekile ku-quadrant ephezulu kwesokudla futhi, ngokusho kwesinqumo sikaGartner, "inganconywa ukuthi isetshenziswe."
Yini entsha ku-Dorado V6
Umugqa womkhiqizo we-Dorado V6, ikakhulukazi, umelelwe izinhlelo zochungechunge lwezinga lokungena 3000. Ekuqaleni zifakwe izilawuli ezimbili, zinganwetshwa ngokuvundlile zibe izilawuli eziyi-16, amadrayivu angu-1200 kanye ne-192 GB ye-cache. Futhi, uhlelo luzohlonyiswa ngamachweba wangaphandle we-Fiber (8 / 16 / 32 Gb / s) kanye ne-Ethernet (1 / 10 / 25 / 40 / 100 Gb / s).
Qaphela ukuthi ukusetshenziswa kwezivumelwano ezingenayo impumelelo yezentengiselwano manje kuyayekwa, ngakho ekuqaleni sinqume ukukuyeka ukusekelwa kwe-Fiber Channel phezu kwe-Ethernet (FCoE) ne-Infiniband (IB). Zizokwengezwa ezinguqulweni zakamuva ze-firmware. Ukusekelwa kwe-NVMe phezu kwendwangu (NVMe-oF) kuyatholakala ngaphandle kwebhokisi phezulu kwe-Fiber Channel. I-firmware elandelayo, ehlelelwe ukukhishwa ngoJuni, ihlelelwe ukusekela i-NVMe ngemodi ye-Ethernet. Ngokombono wethu, isethi engenhla izodlula izidingo zamakhasimende amaningi weHuawei.
Ukufinyelela ifayela akutholakali enguqulweni yamanje ye-firmware futhi kuzovela kwesinye sezibuyekezo ezilandelayo ngasekupheleni konyaka. Ukuqaliswa kucatshangwa ezingeni lendabuko, ngabalawuli ngokwabo abanezimbobo ze-Ethernet, ngaphandle kokusetshenziswa kwezisetshenziswa ezengeziwe.
Umehluko omkhulu phakathi kwemodeli yochungechunge lwe-Dorado V6 3000 kanye nezindala ukuthi isekela iphrothokholi eyodwa ku-backend - SAS 3.0. Ngakho-ke, amadrayivu lapho angasetshenziswa kuphela ngesixhumi esibonakalayo esiqanjwe igama. Ngokombono wethu, ukusebenza okunikezwa yilokhu kwanele ngokwanele kudivayisi yalolu hlobo.
Amasistimu we-Dorado V6 5000 kanye ne-6000 ayizixazululo zebanga eliphakathi. Zenziwe futhi ngefomu le-2U futhi zifakwe izilawuli ezimbili. Zihluke komunye nomunye ekusebenzeni, inani lamaphrosesa, inani eliphakeme lamadiski nosayizi wenqolobane. Nokho, ngokwemibandela yezakhiwo nobunjiniyela, i-Dorado V6 5000 ne-6000 ziyafana futhi zibukeka zifana.
Isigaba se-hi-end sihlanganisa i-Dorado V6 8000 kanye nezinhlelo zochungechunge ezingu-18000. Zenziwe ngosayizi we-4U, zinezakhiwo ezihlukile ngokuzenzakalelayo, lapho izilawuli namadrayivu ahlukaniswa ngokuhlukana. Bangakwazi futhi ukuza nezilawuli ezimbalwa njengezibili njengenani eliphansi, nakuba amakhasimende ngokuvamile acela ezine noma ngaphezulu.
I-Dorado V6 8000 ikala izilawuli eziyi-16, futhi i-Dorado V6 18000 isikali sifika ku-32. Lawa masistimu anamaphrosesa ahlukene anezinombolo ezihlukene zama-cores kanye nosayizi benqolobane. Ngesikhathi esifanayo, ubunikazi bezixazululo zobunjiniyela buyagcinwa, njengamamodeli wesigaba esimaphakathi.
Amashalofu esitoreji angu-2U axhunywe nge-RDMA nge-bandwidth engu-100 Gb / s. I-backend endala ye-Dorado V6 iphinde isekele i-SAS 3.0, kodwa ngaphezulu uma kwenzeka ama-SSD analesi sikhombimsebenzisi ehla ngentengo kakhulu. Khona-ke kuyoba nokwenzeka kwezomnotho ukusetshenziswa kwazo ngisho kucatshangelwa umkhiqizo ophansi. Okwamanje, umehluko ezindlekweni phakathi kwama-SSD ane-SAS ne-NVMe interfaces mncane kangangokuthi asikakakulungeli ukuncoma isisombululo esinjalo.
Ngaphakathi kwesilawuli
Izilawuli ze-Dorado V6 zenziwe ngesisekelo sethu se-elementi. Awekho amaphrosesa avela ku-Intel, awekho ama-ASIC avela ku-Broadcom. Ngakho-ke, yonke ingxenye eyodwa yebhodi le-motherboard, kanye ne-motherboard ngokwayo, isuswe ngokuphelele ethonyeni lezingozi ezihambisana nokucindezela kwezigwegwe ezivela ezinkampanini zaseMelika. Labo ababone noma yimiphi imishini yethu ngamehlo abo cishe baye baqaphela izihlangu ezinomugqa obomvu ngaphansi kwelogo. Kusho ukuthi umkhiqizo awunazo izingxenye zaseMelika. Lena inkambo esemthethweni ye-Huawei - ukushintshela ezingxenyeni zokukhiqiza kwayo, noma, noma kunjalo, ekhiqizwa emazweni angalandeli inqubomgomo yase-US.
Nakhu ongakubona ebhodini lesilawuli ngokwalo.
- I-interface yenethiwekhi yendawo yonke (i-Hisilicon 1822 chip) enesibopho sokuxhuma ku-Fiber Channel noma i-Ethernet.
- Inikeza ukufinyeleleka okukude kwe-chip ye-BMC yesistimu, okuyi-Hisilicon 1710, yokulawula okukude okunesici esigcwele nokuqapha uhlelo. Okufanayo kuyasetshenziswa futhi kumaseva ethu nakwezinye izixazululo.
- Iyunithi yokucubungula emaphakathi, okuyi-chip ye-Kunpeng 920 eyakhelwe ekwakhiweni kwe-ARM, ekhiqizwe ngabakwaHuawei. Nguye oboniswa kumdwebo ongenhla, nakuba abanye abalawuli bangase babe namamodeli ahlukene anenani elihlukile lama-cores, ijubane elihlukile lewashi, njll. Isibonelo, ochungechungeni oludala lwe-Dorado V6, kunezine zazo ebhodini elilodwa.
- Isilawuli se-SSD (i-Hisilicon 1812e chip) esisekela zombili izishayeli ze-SAS ne-NVMe. Ngaphezu kwalokho, i-Huawei ikhiqiza ngokuzimela ama-SSD, kodwa ayiwakhiqizi amaseli e-NAND ngokwawo, ikhetha ukuwathenga kubakhiqizi abane abakhulu emhlabeni ngendlela yamawafa angama-silicon angasikiwe. Ukusika, ukuhlola nokupakisha kuma-chips i-Huawei ikhiqiza ngokuzimela, ngemuva kwalokho ibakhulula ngaphansi komkhiqizo wayo.
- I-chip yobuhlakani bokwenziwa ithi Ascend 310. Ngokuzenzakalelayo, ayikho kusilawuli futhi ifakwa ngekhadi elihlukile, elithatha enye yezikhala ezibekelwe ama-adaptha enethiwekhi. I-chip isetshenziselwa ukuhlinzeka ngokuziphatha kwenqolobane ehlakaniphile, ukuphathwa kokusebenza noma ukuphindaphinda kanye nezinqubo zokuminyanisa. Yonke le misebenzi ingaxazululwa ngosizo lweprosesa emaphakathi, kodwa i-AI chip ikuvumela ukuthi wenze lokhu ngempumelelo kakhulu.
Ngokwehlukana mayelana nama-Kunpeng processors
Iphrosesa ye-Kunpeng iwuhlelo ku-chip (SoC) lapho, ngaphezu kweyunithi yekhompuyutha, kunamamojula wehadiwe asheshisa izinqubo ezihlukahlukene, ezifana nokubala amasheke noma ukwenza ikhodi yokusula. Iphinde isebenzise ukusekelwa kwezingxenyekazi zekhompuyutha ze-SAS, i-Ethernet, i-DDR4 (kusukela eziteshini eziyisithupha kuya kweziyisishiyagalombili), njll. Konke lokhu kuvumela i-Huawei ukuthi idale izilawuli zesitoreji ezingekho ngaphansi ekusebenzeni kuzixazululo ze-Intel zakudala.
Ngaphezu kwalokho, izixazululo zobunikazi ezisekelwe ekwakhiweni kwe-ARM zivumela i-Huawei ukuthi idale izixazululo eziphelele zeseva futhi izinikeze amakhasimende ayo njengenye indlela ye-x86.
Isakhiwo esisha se-Dorado V6...
Isakhiwo sangaphakathi sesistimu yokugcina i-Dorado V6 yochungechunge oludala imelelwa izizinda ezine eziyinhloko (izimboni).
Imboni yokuqala iyindawo yangaphambili evamile (izixhumanisi zenethiwekhi ezinomthwalo wemfanelo wokuxhumana nefekthri ye-SAN noma abasingathi).
Eyesibili isethi yabalawuli, ngayinye engakwazi "ukufinyelela" nge-protocol ye-RDMA kokubili kunoma yiliphi ikhadi lenethiwekhi elingaphambili kanye "nenjini" engumakhelwane, okuyibhokisi elinabalawuli abane, kanye namandla nokupholisa. amayunithi ajwayelekile kubo. Manje i-hi-end class Dorado V6 onobuhle ingafakwa "izinjini" ezimbili ezinjalo (ngokulandelana, abalawuli abayisishiyagalombili).
Imboni yesithathu inesibopho se-backend futhi iqukethe amakhadi enethiwekhi e-RDMA 100G.
Ekugcineni, ifektri yesine "ku-hardware" imelelwa amashalofu okugcina ahlakaniphile e-plug-in.
Lesi sakhiwo esinokulinganisa sikhulula amandla aphelele obuchwepheshe be-NVMe futhi siqinisekisa ukusebenza okuphezulu nokuthembeka. Inqubo ye-I / O ifaniswa kakhulu kuwo wonke amaphrosesa nama-cores, ihlinzeka ngokufunda nokubhala kanyekanye emicu eminingi.
... kanye nalokho asinika kona
Ukusebenza okuphezulu kwezixazululo ze-Dorado V6 cishe kuphakeme ngokuphindwe kathathu kunezinhlelo zesizukulwane sangaphambilini (yesigaba esifanayo) futhi kungafinyelela kuma-IOPS ayizigidi ezingu-20.
Lokhu kungenxa yeqiniso lokuthi esizukulwaneni esidlule samadivayisi, ukusekelwa kwe-NVMe kwanwetshwa kuphela emashalofini okudonsa anokushayela. Manje isikhona kuzo zonke izigaba, kusukela kumsingathi kuya ku-SSD. Inethiwekhi ye-backend nayo ibe nezinguquko: I-SAS/PCIe inikeze indlela ku-RoCEv2 ngokuphuma kwe-100 Gb/s.
I-SSD form factor nayo isishintshile. Uma ngaphambili bekunamadrayivu angama-2 eshalofini ngalinye le-25U, manje selikhuliswe lafika kumadiski angama-36 angangentende. Ngaphezu kwalokho, amashalofu "ahlakaniphile." Ngayinye yazo manje inesistimu yokubekezelela amaphutha yezilawuli ezimbili ezisuselwe kuma-chips e-ARM, afana nalawo afakwe kuzilawuli ezimaphakathi.
Kuze kube manje, bahlanganyela kuphela ekuhleleni kabusha idatha, kodwa ngokukhululwa kwe-firmware entsha, ukucindezela nokusula ikhodi kuzokwengezwa kuyo, okuzonciphisa umthwalo kubalawuli abakhulu kusuka ku-15 kuya ku-5%. Ukudlulisa eminye imisebenzi eshalofini ngesikhathi esifanayo kukhulula umkhawulokudonsa wenethiwekhi yangaphakathi. Futhi konke lokhu kukhulisa kakhulu amandla okulinganisa wesistimu.
Ukucindezelwa nokukhishwa kwesibili ohlelweni lokugcina lwesizukulwane sangaphambilini kwenziwa ngamabhulokhi anobude obungaguquki. Manje, imodi yokusebenza ngamabhulokhi anobude obuguquguqukayo yengeziwe, okumele kuze kube manje ivulwe ngenkani. Izibuyekezo ezilandelayo zingasishintsha lesi simo.
Futhi kafushane mayelana nokubekezelela ukwehluleka. I-Dorado V3 isalokhu isebenza uma omunye wabalawuli ababili behluleka. I-Dorado V6 izoqinisekisa ukutholakala kwedatha ngisho noma izilawuli eziyisikhombisa kweziyisishiyagalombili zehluleka ngokulandelana noma ezine kweyodwa injini zihluleka kanyekanye.
Ukwethembeka ngokwezomnotho
Muva nje, kwenziwa inhlolovo phakathi kwamakhasimende akwaHuawei mayelana nokuthi singakanani isikhathi sokuphumula sezakhi ngazinye zengqalasizinda ye-IT inkampani ebona ukuthi samukelekile. Ngokwengxenye enkulu, abaphenduli bebebekezelela isimo sokucatshangelwa lapho isicelo singaphenduli phakathi kwamasekhondi ambalwa. Kusistimu yokusebenza noma i-adaptha yebhasi, amashumi amasekhondi (isikhathi sokuqalisa kabusha empeleni) abe yisikhathi sokuphumula esibalulekile. Amakhasimende abeka izidingo eziphakeme nakakhulu kunethiwekhi: umkhawulokudonsa wayo akufanele unyamalale ngaphezu kwamasekhondi angu-10-20. Njengoba ungase uqagele, abaphenduli ababaluleke kakhulu bacabangele ukwehluleka kwesistimu yesitoreji. Ngokombono wabamele ibhizinisi, isitoreji esilula akufanele sidlule ... imizuzwana embalwa ngonyaka!
Ngamanye amazwi, uma isicelo seklayenti lebhange lingaphenduli imizuzwana eyi-100, lokhu cishe ngeke kubangele imiphumela eyinhlekelele. Kodwa uma isistimu yokugcina ingasebenzi ngenani elifanayo, ukumiswa kwebhizinisi nokulahlekelwa okukhulu kwezimali kungenzeka.
Ishadi elingenhla libonisa izindleko zehora lomsebenzi wamabhange amakhulu ayishumi (idatha yeForbes yango-2017). Vumelana, uma inkampani yakho isondela kusayizi wamabhange aseShayina, ngeke kube nzima kangako ukuthethelela isidingo sokuthenga amasistimu okugcina amadola ayizigidi ezimbalwa. Isitatimende sokuxoxisana siphinde silungile: uma ibhizinisi lingalahlekelwa kakhulu ngesikhathi sokuphumula, cishe ngeke lithenge amasistimu okugcina aphezulu. Kunoma ikuphi, kubalulekile ukuba nombono wokuthi imbobo isongela ukwakheka kamuphi esikhwameni sakho ngenkathi umlawuli wesistimu esebenzelana nesistimu yokugcina enqabile ukusebenza.
Okwesibili ngokuhluleka
Kusixazululo A emfanekisweni ongenhla, ungakwazi ukubona uhlelo lwethu lwangaphambilini lwe-Dorado V3. Izilawuli zayo ezine zisebenza ngababili, futhi izilawuli ezimbili kuphela eziqukethe amakhophi enqolobane. Izilawuli ngaphakathi kokubili zingasabalalisa kabusha umthwalo. Ngesikhathi esifanayo, njengoba ubona, awekho "amafekthri" angaphambili nangemuva lapha, ngakho-ke amashalofu esitoreji ngasinye axhunywe kumbhangqwana othile wesilawuli.
Umdwebo we-Solution B ubonisa isixazululo okwamanje emakethe esivela komunye umthengisi (osaziwayo?). Sekuvele kunamafekthri angaphambili nangemuva lapha, futhi amadrayivu axhunywe kubalawuli abane ngesikhathi esisodwa. Yiqiniso, kukhona ama-nuances angabonakali ekulinganisweni kokuqala emsebenzini we-algorithms yangaphakathi yesistimu.
Ngakwesokudla yisakhiwo sethu samanje se-Dorado V6 esineqoqo eligcwele labangaphakathi. Cabanga ukuthi lezi zinhlelo zisinda kanjani esimweni esijwayelekile - ukwehluleka kwesilawuli esisodwa.
Kuzinhlelo zakudala, ezihlanganisa i-Dorado V3, isikhathi esidingekayo ukuze kwabiwe kabusha umthwalo uma kwenzeka ukwehluleka sifinyelela imizuzwana emine. Ngalesi sikhathi, i-I/O ima ngokuphelele. Isixazululo B esiphuma kozakwethu, naphezu kwezakhiwo zesimanjemanje, sinesikhathi sokuphumula esiphezulu nakakhulu sokungaphumeleli kwamasekhondi ayisithupha.
Isitoreji i-Dorado V6 sibuyisela umsebenzi waso ngomzuzwana owodwa nje ngemva kokwehluleka. Lo mphumela ufinyelelwa ngenxa yemvelo yangaphakathi ye-RDMA evumela ukuthi isilawuli sifinyelele inkumbulo "yangaphandle". Isimo sesibili esibalulekile siwukuba khona kwefekthri engaphambili, ngenxa yokuthi indlela yomsingathi ingashintshi. Ichweba lihlala linjalo, futhi umthwalo umane uthunyelwa kubalawuli abanempilo ngabashayeli abadlulayo.
Ukwehluleka kwesilawuli sesibili ku-Dorado V6 kwenziwa ngomzuzwana owodwa ngokuya ngohlelo olufanayo. I-Dorado V3 ithatha cishe imizuzwana eyisithupha, futhi isisombululo somunye umthengisi sithatha eyisishiyagalolunye. Kuma-DBMS amaningi, izikhathi ezinjalo azisakwazi ukubhekwa njengezamukelekayo, njengoba phakathi nalesi sikhathi isistimu ishintshelwa kumodi yokulinda futhi iyeke ukusebenza. Lokhu okokuqala kuthinta i-DBMS ehlanganisa izigaba eziningi.
Ukwehluleka kwesilawuli sesithathu Isixazululo A asikwazi ukusinda. Ngenxa nje yokuthi ukufinyelela engxenyeni yamadiski edatha kulahleka. Ngakolunye uhlangothi, Isixazululo B esimeni esinjalo sibuyisela amandla ayo okusebenza, okuthatha, njengasekuqaleni, imizuzwana eyisishiyagalolunye.
Yini eku-Dorado V6? Umzuzwana owodwa.
Yini engenziwa ngomzuzwana
Cishe lutho, kodwa asikudingi. Nakulokhu futhi, ku-Dorado V6 yesigaba se-hi-end, ifekthri engaphambili inqanyuliwe embonini yesilawuli. Lokhu kusho ukuthi azikho izimbobo ezinamakhodi aqinile ezesilawuli esithile. Ukwehluleka akubandakanyi ukuthola ezinye izindlela noma ukuqalisa kabusha ukudlula okuningi. Isistimu iyaqhubeka nokusebenza njengoba yayijwayele ukwenza.
Ukubekezelela ukwehluleka okuningi
Amamodeli amadala we-Dorado V6 angasinda kalula ekuhlulekeni ngesikhathi esisodwa kwanoma yiziphi izilawuli ezimbili (!) ezivela kunoma yiziphi "izinjini". Lokhu kwenziwa yiqiniso lokuthi isisombululo manje sigcina amakhophi amathathu enqolobane. Ngakho-ke, ngisho nokwehluleka okuphindwe kabili, kuyohlale kunekhophi eyodwa ephelele.
Ukwehluleka okuhambisanayo kwazo zonke izilawuli ezine kwenye "yezinjini" ngeke futhi kubangele imiphumela ebulalayo, ngoba wonke amakhophi amathathu wenqolobane asakazwa phakathi "kwezinjini" nganoma yisiphi isikhathi. Uhlelo ngokwalo luqapha ukuhambisana nalolo hlobo lomsebenzi.
Okokugcina, isimo esingalindelekile ukwehluleka ukulandelana kwezilawuli eziyisikhombisa kweziyisishiyagalombili. Ngaphezu kwalokho, isikhawu esincane esivumelekile phakathi kokwehluleka komuntu ngamunye ukugcina ukusebenza imizuzu eyi-15. Ngalesi sikhathi, isistimu yokugcina inesikhathi sokwenza imisebenzi edingekayo ukuze kuthuthwe inqolobane.
Isilawuli sokugcina esisele sizosebenzisa isitolo sedatha futhi sigcine inqolobane izinsuku ezinhlanu (inani elizenzakalelayo, elingashintshwa kalula kuzilungiselelo). Ngemuva kwalokho, i-cache izokhutshazwa, kodwa uhlelo lokugcina luzoqhubeka nokusebenza.
Izibuyekezo ezingaphazamisi
I-OS Dorado V6 entsha ikuvumela ukuthi ubuyekeze i-firmware yesitoreji ngaphandle kokuqalisa kabusha izilawuli.
Isistimu yokusebenza, njengasesimweni sezixazululo zangaphambilini, isekelwe ku-Linux, noma kunjalo, izinqubo eziningi zokusebenza zidluliselwe kusuka ku-kernel kuya kumodi yomsebenzisi. Iningi lemisebenzi, njengaleyo enesibopho sokuphindaphinda nokuminyanisa, manje isingamadamoni avamile asebenza ngemuva. Ngenxa yalokho, akudingekile ukushintsha lonke uhlelo lokusebenza ukuze ubuyekeze amamojula ngamanye. Ake sithi, ukwengeza ukwesekwa kwephrothokholi entsha, kuyodingeka kuphela ukuvala imojuli yesofthiwe ehambisanayo bese uqala entsha.
Kuyacaca ukuthi izindaba zokubuyekeza uhlelo lulonke zisasele, ngoba kungase kube nezakhi ku-kernel ezidinga ukubuyekezwa. Kodwa lezo, ngokokubona kwethu, zingaphansi kuka-6% wengqikithi. Lokhu kukuvumela ukuthi uqalise kabusha izilawuli izikhathi eziyishumi kaningi kunangaphambili.
Izixazululo zokubekezelela izinhlekelele kanye Nokutholakala Okuphezulu (HA/DR).
I-Dorado V6 engaphandle kwebhokisi isilungele ukuhlanganiswa kuzixazululo ezisatshalaliswa nge-geo, amaqoqo ezinga ledolobha (metro) kanye nezikhungo zedatha "ezithathu".
Kwesokunxele emfanekisweni ongenhla kuneqoqo le-metro eselivele lijwayelekile kwabaningi. Amasistimu okugcina amabili asebenza kumodi esebenzayo / esebenzayo ebangeni elingafika ku-100 km ukusuka kwelinye. Ingqalasizinda enjalo eneseva yekhoramu eyodwa noma ngaphezulu ingasekelwa yizixazululo ezivela ezinkampanini ezihlukene, okuhlanganisa nohlelo lwethu lokusebenza lwamafu lwe-FusionSphere. Okubaluleke kakhulu kumaphrojekthi anjalo yizici zesiteshi phakathi kwamasayithi, yonke eminye imisebenzi esimweni sethu ithathwa umsebenzi we-HyperMetro, etholakalayo, futhi, ngaphandle kwebhokisi. Ukuhlanganiswa kungenzeka nge-Fiber Channel, kanye nangaphezulu kwe-iSCSI kumanethiwekhi we-IP, uma isidingo esinjalo sivela. Asisekho isidingo sokuba khona okuphoqelekile kwama-optics “amnyama” azinikezele, njengoba uhlelo lukwazi ukuxhumana ngamashaneli akhona.
Lapho wakha amasistimu anjalo, okuwukuphela kwesidingo sezingxenyekazi zekhompuyutha zokugcinwa ukunikezwa kwezimbobo zokuphindaphinda. Kwanele ukuthenga ilayisensi, ukusebenzisa amaseva ekhoramu - ngokomzimba noma okubonakalayo - futhi unikeze ukuxhumana kwe-IP kuzilawuli (10 Mbps, 50 ms).
Lesi sakhiwo singadluliselwa kalula kusistimu enezikhungo ezintathu zedatha (bona uhlangothi olungakwesokudla lomfanekiso). Isibonelo, lapho izikhungo zedatha ezimbili zisebenza kumodi yeqoqo le-metro, futhi indawo yesithathu, etholakala ebangeni elingaphezu kuka-100 km, isebenzisa ukuphindaphinda okungavumelaniyo.
Uhlelo lusekela ngobuchwepheshe izimo zebhizinisi ezihlukahlukene ezizosetshenziswa uma kwenzeka kunesilinganiso esikhulu eseqile.
Ukusinda kweqoqo le-metro elinokuhluleka okuningi
Okungenhla nangezansi nakho kubonisa iqoqo le-metro yakudala, elihlanganisa amasistimu okugcina amabili kanye neseva yekhoramu. Njengoba ubona, ezimweni eziyisithupha kweziyisishiyagalolunye okungenzeka kube khona ukwehluleka okuningi, ingqalasizinda yethu izohlala isebenza.
Isibonelo, esimweni sesibili, uma iseva yekhoramu ihluleka futhi ukuvumelanisa phakathi kwamasayithi kwehluleka, isistimu ihlala ikhiqiza ngoba isayithi lesibili liyayeka ukusebenza. Lokhu kuziphatha sekuvele kwakhelwe kuma-algorithms akhelwe ngaphakathi.
Ngisho nangemva kokuhluleka okuthathu, ukufinyelela olwazini kungagcinwa uma isikhawu phakathi kwabo okungenani siyimizuzwana eyi-15.
Ikhadi elivamile lecilongo elisuka kumkhono
Khumbula ukuthi uHuawei ukhiqiza hhayi kuphela izinhlelo zokugcina, kodwa futhi uhla oluphelele lwemishini yenethiwekhi. Noma yimuphi umhlinzeki wesitoreji omkhethayo, uma inethiwekhi ye-WDM isetshenziswa phakathi kwamasayithi, ku-90% yamacala izokwakhiwa phezu kwezixazululo zenkampani yethu. Kuphakama umbuzo ophusile: kungani kuhlanganisa i-zoo yezinhlelo lapho zonke i-hardware eqinisekisiwe ukuthi iyahambisana nomunye ingatholwa kumthengisi oyedwa?
Embuzweni wokusebenza
Mhlawumbe, akekho odinga ukuqiniseka ukuthi ukushintshela kwisitoreji se-All-Flash kunganciphisa kakhulu izindleko zokulungisa ingqalasizinda, njengoba yonke imisebenzi eyenziwa njalo yenziwa ngokushesha izikhathi eziningi. Bonke abahlinzeki bemishini enjalo bayakufakazela lokhu. Ngaleso sikhathi, abathengisi abaningi sebeqala ukuba nobuqili uma kukhulunywa ngokucekelwa phansi kokusebenza lapho izindlela ezahlukahlukene zokugcina zisebenza.
Embonini yethu, kusetshenziswa kabanzi ukukhipha amasistimu okugcina ukuze ahlolwe usuku olulodwa noma ezimbili. Umthengisi uqhuba ukuhlolwa kwemizuzu engu-20 kusistimu engenalutho, ethola izibalo zokusebenza kwe-cosmic. Futhi ekusebenzeni kwangempela, "ama-rakes angaphansi kwamanzi" aphuma ngokushesha. Ngemuva kosuku, amanani amahle e-IOPS ancishiswa ngesigamu noma kathathu, futhi uma isistimu yesitoreji igcwaliswe ngo-80%, iba ngaphansi nakakhulu. Uma i-RAID 5 inikwe amandla esikhundleni se-RAID 10, enye i-10-15% iyalahleka, futhi kumodi yeqoqo le-metro, ukusebenza kuphinda kuhliswe ngohhafu.
Konke okubalwe ngenhla akuphathelene ne-Dorado V6. Amakhasimende ethu anethuba lokuhlola ukusebenza ngempelasonto noma okungenani ubusuku bonke. Khona-ke ukuqoqwa kukadoti kubonakala, futhi kubuye kucace ukuthi ukwenziwa kusebenze kwezinketho ezihlukahlukene - njengezifinyezo nokuphindaphinda - kuthinta inani le-IOPS elizuziwe.
Ku-Dorado V6, izifinyezo kanye ne-RAID ngokulingana cishe azinawo umthelela ekusebenzeni (3-5% esikhundleni sika-10-15%). Ukuqoqwa kukadoti (ukugcwalisa amaseli okushayela ngo-zero), ukucindezelwa, ukuphindaphinda ohlelweni lwesitoreji olugcwele ngo-80% kuzohlale kuthinta isivinini esiphelele sokucubungula isicelo. Kodwa i-Dorado V6 iyathakazelisa ngokuthi, kungakhathaliseki ukuthi iyiphi inhlanganisela yemisebenzi nezindlela zokuzivikela ozisebenzisayo, ukusebenza kokugcina kwesitoreji ngeke kuwele ngaphansi kwama-80% wesibalo esitholwe ngaphandle komthwalo.
Ukulayisha ukulinganisa
Ukusebenza okuphezulu kwe-Dorado V6 kufinyelelwa ngokulinganisa kuzo zonke izigaba, okungukuthi:
- ukuphindaphinda;
- usebenzisa ukuxhumana okuningi kusuka kumsingathi oyedwa;
- ukutholakala kwemboni engaphambili;
- ukuhambisana nokusebenza kwezilawuli zokugcina;
- ukusatshalaliswa komthwalo kuwo wonke amadrayivu ezingeni le-RAID 2.0+.
Ngokuyisisekelo, lokhu kuwumkhuba ovamile. Kulezi zinsuku, abantu abambalwa abagcina yonke idatha ku-LUN eyodwa: wonke umuntu uzama ukuba nesishiyagalombili, ngisho namashumi amane, noma ngaphezulu. Lena indlela esobala nelungile, esiyihlanganyelayo. Kodwa uma umsebenzi wakho udinga i-LUN eyodwa kuphela, okulula ukuyinakekela, izixazululo zethu zezakhiwo zikuvumela ukuthi uzuze u-80% wokusebenza okutholakala ngama-LUN amaningi.
Ukushejula kwe-CPU enamandla
Ukusatshalaliswa komthwalo kumaphrosesa uma usebenzisa i-LUN eyodwa kwenziwa ngale ndlela elandelayo: imisebenzi esezingeni le-LUN ihlukaniswe yaba "amashadi" amancane ahlukene, ngalinye elinikezwe ngokuqinile isilawuli esithile "enjini". Lokhu kwenziwa ukuze isistimu ingalahlekelwa ukusebenza ngenkathi “igxuma” nalolu cezu lwedatha kuzo zonke izilawuli ezihlukene.
Enye indlela yokugcina ukusebenza okuphezulu ukuhlela okuguquguqukayo, lapho ama-processor cores athile angabelwa amachibi ahlukene emisebenzi. Isibonelo, uma isistimu manje ingenzi lutho ezingeni lokuphindaphinda nokucindezelwa, khona-ke amanye ama-cores angase abambe iqhaza ohlelweni lokusevisa i-I / O. Noma ngokuphambene. Konke lokhu kwenziwa ngokuzenzakalelayo futhi ngokusobala kumsebenzisi.
Idatha ekumthwalo wamanje we-Dorado V6 cores ngayinye ayiboniswa ku-interface yesithombe, kodwa ngomugqa womyalo ungakwazi ukufinyelela isilawuli se-OS futhi usebenzise umyalo we-Linux ovamile. top.
Ukusekelwa kwe-NVMe ne-RoCE
Njengoba sekushiwo, i-Dorado V6 okwamanje isekela ngokugcwele i-NVMe phezu kwe-Fiber Channel ngaphandle kwebhokisi futhi ayidingi noma yimaphi amalayisensi. Maphakathi nonyaka, kuzovela usekelo lwe-NVMe phezu kwemodi ye-Ethernet. Ukuze isetshenziswe ngokugcwele, uzodinga ukusekelwa kwe-Ethernet enokufinyelela okuqondile kwememori (i-DMA) inguqulo engu-v2.0 kokubili kusukela kusistimu yesitoreji ngokwayo kanye nokusuka kumaswishi nama-adaptha enethiwekhi. Isibonelo, njenge-Mellanox ConnectX-4 noma i-ConnectX-5. Ungasebenzisa futhi amakhadi enethiwekhi enziwe ngesisekelo sama-chips ethu. Futhi, ukwesekwa kwe-RoCE kufanele kusetshenziswe ezingeni lesistimu yokusebenza.
Sekukonke, sibheka i-Dorado V6 njengohlelo lwe-NVMe-centric. Naphezu kokusekelwa okukhona kwe-Fiber Channel ne-iSCSI, esikhathini esizayo kuhlelwe ukushintshela ku-Ethernet yesivinini esikhulu nge-RDMA.
Ingcosana yokuthengisa
Ngenxa yokuthi uhlelo lwe-Dorado V6 lubekezelela kakhulu amaphutha, lulinganisa kahle, lusekela ubuchwepheshe obuhlukahlukene bokufuduka, njll., umphumela wezomnotho wokutholwa kwawo ubonakala ngokuqala kokusetshenziswa kakhulu kwezinhlelo zokugcina. Sizoqhubeka nokuzama ukwenza ubunikazi besistimu bube nenzuzo ngangokunokwenzeka, ngisho noma esigabeni sokuqala kungabonakali.
Ikakhulukazi, sakhe uhlelo lwe-FLASH EVER oluhlotshaniswa nokwelula umjikelezo wempilo wezinhlelo zokulondoloza futhi oluklanyelwe ukukhulula ikhasimende ngangokunokwenzeka phakathi nokuthuthukiswa.
Lolu hlelo lubandakanya izinyathelo ezimbalwa:
- ikhono lokushintsha kancane kancane izilawuli namashalofu ediski ngezinguqulo ezintsha ngaphandle kokushintsha yonke imishini (yezinhlelo ze-Dorado V6 hi-end);
- ithuba lokugcinwa okuhlanganisiwe (ukuhlanganisa izinguqulo ezihlukene ze-Dorado njengengxenye yeqoqo elilodwa lokugcina eliyingxube);
- i-smart virtualization (ikhono lokusebenzisa ihadiwe yenkampani yangaphandle njengengxenye yesixazululo se-Dorado).
Kufanele kuqashelwe ukuthi isimo esinzima emhlabeni asizange sibe nethonya elincane emathembeni ezentengiselwano alesi simiso esisha. Naphezu kweqiniso lokuthi ukukhululwa okusemthethweni kwe-Dorado V6 kwenzeka kuphela ngoJanuwari, sibona isidingo esikhulu sayo e-China, kanye nesithakazelo esikhulu kuso esivela kubalingani baseRussia nabamazwe ngamazwe abavela emikhakheni yezezimali nekahulumeni.
Phakathi kwezinye izinto, mayelana nalolu bhubhane, noma ngabe luhlala isikhathi eside kangakanani, udaba lokuhlinzeka abasebenzi abakude ngamadeskithophu abonakalayo lubucayi kakhulu. Kule nqubo, i-Dorado V6 ingase futhi isuse imibuzo eminingi. Kuze kube manje, senza yonke imizamo edingekayo, okuhlanganisa nokuvumelana ngokweqiniso ngokufakwa kwesistimu entsha ohlwini oluhambisanayo lwe-VMware.
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Ngendlela, ungakhohlwa ngama-webinars ethu amaningi aphethwe hhayi kuphela engxenyeni ekhuluma isiRashiya, kodwa futhi nasezingeni lomhlaba. Uhlu lwama-webinars ka-Ephreli luyatholakala ku- .
Source: www.habr.com