Ihlobo laseMoscow kulo nyaka, ukunyaniseka, kwakungekho kuhle kakhulu. Kwaqala ngokukhawuleza kwaye ngokukhawuleza, kungekhona wonke umntu owayenexesha lokusabela kuyo, kwaye yaphela kakade ekupheleni kukaJuni. Ngoko ke, xa uHuawei wandimema ukuba ndiye eChina, kwisixeko saseChengdu, apho iziko labo le-RnD likhona, emva kokujonga imozulu ye-34 degrees emthunzini, ndavuma ngokukhawuleza. Emva koko, andisekho iminyaka kwaye kufuneka ndifudumale amathambo am kancinci. Kodwa ndingathanda ukuqaphela ukuba kwakunokwenzeka ukufudumala amathambo kuphela, kodwa kunye nangaphakathi, kuba iphondo laseSichuan, apho i-Chengdu ikhona khona, idume ngokuthanda ukutya okuneziqholo. Kodwa kunjalo, oku akusiyo iblogi malunga nokuhamba, ngoko masibuyele kwinjongo ephambili yohambo lwethu - umgca omtsha weenkqubo zokugcina - Huawei Dorado V6. Eli nqaku liza kukutshangatshangisa kancinci ukusuka kwixesha elidlulileyo, kuba... yabhalwa ngaphambi kwesibhengezo esisemthethweni, kodwa yapapashwa kuphela emva kokukhululwa. Kwaye ke, namhlanje siza kujonga ngakumbi kuyo yonke into enomdla kwaye enencasa esiyilungiselelwe nguHuawei.
Kuya kubakho iimodeli ezi-5 kumgca omtsha. Zonke iimodeli ngaphandle kwe-3000V6 zinokubakho kwiinguqulelo ezimbini - i-SAS kunye ne-NVMe. Ukhetho lumisela ujongano lweediski onokuzisebenzisa kule nkqubo, izibuko Ezingasemva-Ekupheleni kunye nenani leediski zokuqhuba onokuthi uzifake kwisixokelelwano. Kwi-NVMe, ii-SSD ezinobungakanani bePalm ziyasetyenziswa, ezibhityileyo kune-classic 2.5 β³ SAS SSDs kwaye inokufakwa kwiziqwenga ezingama-36. Umgca omtsha nguAll Flash kwaye akukho lungelelwaniso ngeediski.
Palm NVMe SSD
Ngokombono wam, i-Dorado 8000 kunye ne-18000 ibonakala njengeyona modeli inomdla kakhulu.I-Huawei ibeka njengeenkqubo eziphezulu ze-High-end, kwaye, ngenxa yomgaqo-nkqubo wexabiso le-Huawei, iyahlula le mizekelo ye-Mid-range kunye necandelo elikhuphisanayo. Zezi modeli endiza kugxila kuzo kuphononongo lwam namhlanje. Ndiza kuqaphela kwangoko ukuba ngenxa yeempawu zabo zoyilo, iinkqubo ezincinci zolawulo-ezimbini zinesakhiwo esahluke kancinane, esahlukileyo kwiDorado 8000 kunye ne-18000, ngoko akuyiyo yonke into endiya kuthetha ngayo namhlanje esebenzayo kwiimodeli ezincinci.
Enye yezinto eziphambili zeenkqubo ezintsha kukusetyenziswa kweechips ezininzi, eziphuhliswe ngaphakathi kwindlu, nganye ekuvumela ukuba usasaze umthwalo onengqiqo ukusuka kwiprosesa ephakathi yomlawuli kwaye ungeze ukusebenza kumacandelo ahlukeneyo.
Intliziyo yeenkqubo ezintsha yi-Kunpeng 920 processors, ephuhliswe kwiitekhnoloji ze-ARM kwaye zenziwe nguHuawei ngokuzimeleyo. Ngokuxhomekeke kwimodeli, inani lee-cores, i-frequency yabo kunye nenani leprosesa ezifakelwe kwisilawuli ngasinye ziyahluka:
Huawei Dorado V6 8000 - 2CPU, 64 core
Huawei Dorado V6 18000 - 4CPU, 48 core
UHuawei uphuhlise le prosesa kuyilo lwe-ARM, kwaye ngokokwazi kwam, ekuqaleni yayicebe ukuyifaka kuphela kwiimodeli ezindala ze-Dorado 8000 kunye ne-18000, njengoko kwakunjalo ngezinye iimodeli ze-V5, kodwa izigwebo zenza uhlengahlengiso kule ngcamango. Ewe kunjalo, i-ARM iphinde yathetha ngokwala ukusebenzisana neHuawei ngexesha lokubekwa kwezohlwayo, kodwa apha imeko yahlukile kune-Intel. IHuawei ivelisa ezi chips ngokuzimeleyo, kwaye akukho zohlwayo zinokumisa le nkqubo. Ukuphelisa ubudlelwane ne-ARM kusongela kuphela ukuphulukana nokufikelela kuphuhliso olutsha. Ngokuphathelele ukusebenza, kuya kwenzeka ukuba ugwebe kuphela emva kokuqhuba iimvavanyo ezizimeleyo. Nangona ndabona indlela i-18000M IOPS isuswe ngayo kwi-Dorado 1 inkqubo ngaphandle kweengxaki, de ndiyiphindaphinde ngezandla zam kwi-rack yam, andiyi kukholwa. Kodwa ngokwenene kukho amandla amaninzi kubalawuli. Iimodeli ezindala zixhotyiswe ngabalawuli be-4, nganye iprosesa ye-4, inika inani le-768 cores.
Kodwa ndiza kuthetha ngee-cores nangemva koko, xa sijonga ukwakhiwa kweenkqubo ezintsha, kodwa okwangoku makhe sibuyele kwenye i-chip efakwe kwinkqubo. I-chip ibonakala njengesisombululo esinomdla kakhulu (Ngokokuqonda kwam, umninawa omncinci we-Ascend 910, esandul' ukunikezelwa kuluntu). Umsebenzi wayo kukuhlalutya iibhloko zedatha ezingena kwinkqubo yokwandisa umlinganiselo we-Read hit. Kunzima ukutsho ukuba iyakusebenza njani emsebenzini, kuba... Namhlanje isebenza kuphela ngokwethemplate enikiweyo kwaye ayinayo ikhono lokufunda kwimodi ehlakaniphile. Ukubonakala kwemowudi ekrelekrele kuthenjiswe kwi-firmware yexesha elizayo, kunokwenzeka ekuqaleni konyaka olandelayo.
Masiqhubele phambili kwi-architecture. IHuawei iqhubekile nokuphuhlisa itekhnoloji yayo ye-Smart Matrix, esebenzisa indlela epheleleyo yemesh kumacandelo okudibanisa. Kodwa ukuba kwi-V5 le yayiyeyokufikelela kuphela ukusuka kubalawuli ukuya kwiidiski, ngoku bonke abalawuli banokufikelela kuzo zonke izibuko kwi-Back-End nakwi-Front-End.
Enkosi kuyilo olutsha lwe-microservice, oku kukwavumela ulungelelwaniso lomthwalo phakathi kwabo bonke abalawuli, nokuba kukho ilun enye kuphela. I-OS yalo mgca we-arrays yaphuhliswa ukusuka emhlabeni ukuya phezulu, kwaye ayilungiselelwanga ukusetyenziswa kwee-Flash drives. Ngenxa yokuba bonke abalawuli bethu banokufikelela kumachweba afanayo, xa kukho ukungaphumeleli komlawuli okanye ukuqalisa kwakhona, umninimzi akalahlekelwa yindlela enye kwinkqubo yokugcina, kwaye ukutshintshwa kwendlela kuqhutyelwa kwinqanaba lenkqubo yokugcina. Nangona kunjalo, ukusebenzisa i-UltraPath kumamkeli ayimfuneko ngokungqongqo. Olunye "ukugcina" xa ufaka inkqubo linani elincinci leekhonkco eziyimfuneko. Kwaye ukuba ngendlela "yeklasikhi" yabalawuli aba-4 siya kufuna iikhonkco ezi-8 ezivela kwiifektri ezi-2, ngoko kwimeko yeHuawei nokuba i-2 iya kuba yanele (andithethi ngoku malunga nokwanela kwekhonkco enye).
Njengakwinguqulelo yangaphambili, i-cache yehlabathi ene-mirroring isetyenziswa. Oku kukuvumela ukuba ulahlekelwe ukuya kuthi ga kubalawuli ababini ngaxeshanye okanye abathathu ngokulandelelana ngaphandle kokuchaphazela ukufumaneka. Kodwa kuyafaneleka ukuba siqaphele ukuba asizange sibone ukulinganisa okupheleleyo komthwalo phakathi kwabalawuli be-3 abaseleyo kwimeko yokungaphumeleli okunye kwidemo yokuma. Umthwalo womlawuli ongaphumelelanga uthathwe ngokupheleleyo ngomnye wabaseleyo. Kuyenzeka ukuba oku kuyimfuneko ukuvumela inkqubo isebenze ixesha elide kolu qwalaselo. Kuyo nayiphi na imeko, ndiza kujonga oku ngakumbi ngokusebenzisa iimvavanyo zam.
I-Huawei ibeka iinkqubo ezintsha njenge-End-to-End NVMe iinkqubo, kodwa namhlanje i-NVMeOF ayikaxhaswanga ngaphambili, kuphela i-FC, iSCSI okanye i-NFS. Ekupheleni koku okanye ekuqaleni kokulandelayo, njengezinye iimpawu, sithenjiswa ngenkxaso ye-RoCE.
Amashalofu aphinde aqhagamshelwe kubalawuli abasebenzisa i-RoCE, kwaye kukho enye i-drawback ehambelana nale nto - ukungabikho kwe-"loopback" yokudibanisa kwiishelufu, njengoko kwakunjalo kwi-SAS. Ngokombono wam, oku kuseyingxaki enkulu ukuba ucwangcisa inkqubo enkulu ngokufanelekileyo. Inyani kukuba zonke iishelufu zixhunyiwe kwichungechunge, kwaye ukungaphumeleli kwelinye lamashalofu kubangela ukungafikeleleki ngokupheleleyo kwabo bonke abanye abalandelayo. Kule meko, ukuqinisekisa ukunyamezela kwempazamo, kuya kufuneka sidibanise onke amashalofu kubalawuli, okubandakanya ukwanda kwenani elifunekayo le-backend ports kwinkqubo.
Kwaye enye into ekufuneka siyikhankanye luhlaziyo olungaphazamisi (NDU). Njengoko benditshilo ngasentla, uHuawei uphumeze indlela yesikhongozeli sokusebenzisa i-OS kumgca omtsha weDorado, oku kukuvumela ukuba uhlaziye kwaye uqalise kwakhona iinkonzo ngaphandle kwesidingo sokuphinda uqalise ngokupheleleyo umlawuli. Kuyafaneleka ukukhankanya kwangoko ukuba uhlaziyo oluthile luya kuqulatha uhlaziyo lwe-kernel, kwaye kulo mzekelo, ukuqalisa ngokutsha kwabalawuli ngamanye amaxesha kusafuneka ngexesha lohlaziyo, kodwa hayi rhoqo. Oku kuya kunciphisa impembelelo yalo msebenzi kwinkqubo yokuvelisa.
Kwi-arsenal yethu, uninzi lwezixhobo zivela kwi-NetApp. Ke ngoko, ndicinga ukuba kuya kuba sengqiqweni ukuba ndenza uthelekiso oluncinci kunye neenkqubo ekufuneka ndisebenze kakhulu nazo. Lo ayingomzamo wokufumanisa ukuba ngubani ongcono kwaye ngubani ombi ngakumbi okanye ukuba nguwuphi na ulwakhiwo olunenzuzo ngakumbi. Ndiza kuzama ukuthozama kwaye ngaphandle kwenzondelelo yempambano ndithelekise iindlela ezimbini ezahlukeneyo zokusombulula ingxaki efanayo kubathengisi abohlukeneyo. Ewe, ewe, kule meko siza kuqwalasela iinkqubo zeHuawei "kwithiyori" kwaye ndiza kuphinda ndiphawule ngokwahlukileyo ezo ngongoma zicwangciselwe ukuphunyezwa kwiinguqulelo ze-firmware ezizayo. Zeziphi iingenelo endizibonayo ngoku:
- Inani leedrive zeNVMe ezixhaswayo. I-NetApp okwangoku inama-288 kubo, ngelixa iHuawei ine-1600-6400, kuxhomekeke kwimodeli. Kwangaxeshanye, umthamo osebenzisekayo weHuawei weMax yi-32PBe, njengeenkqubo zeNetApp (ukuchaneka ngakumbi, bane-31.64PBe). Kwaye oku nangona iidrive zomthamo ofanayo zixhaswa (ukuya kuthi ga kwi-15Tb). UHuawei uchaza le nyaniso ngolu hlobo lulandelayo: abazange babe nethuba lokuhlanganisa indawo enkulu. Ngokwethiyori, abanamda wevolumu, kodwa abakakwazi ukuyivavanya le nyani okwangoku. Kodwa apha kubalulekile ukuba uqaphele ukuba amandla okuqhuba i-flash namhlanje aphezulu kakhulu, kwaye kwimeko ye-NVMe iinkqubo sijongene nenyaniso yokuba ii-drive ze-24 zanele ukusebenzisa inkqubo yokulawula i-2-end. Ngokufanelekileyo, ukunyuka okungaphezulu kwinani leediski kwinkqubo akuyi kubonelela ngokunyuka komsebenzi, kodwa kuya kuba nefuthe elibi kwi-IOPS / Tb ratio. Ngokuqinisekileyo, kuyafaneleka ukubona ukuba zingaphi iidrayivu ze-4-controller systems 8000 kunye ne-16000 ezinokubamba, kuba ... Ubunakho kunye namandla eKunpeng 920 awakacaci ngokupheleleyo.
- Ubukho beLun njengomnini weenkqubo zeNetApp. Ezo. Umlawuli omnye kuphela onokwenza imisebenzi kunye nenyanga, ngelixa owesibini udlula kuphela i-IO ngokwayo. Iinkqubo zeHuawei, ngokuchaseneyo, azinabanini kunye nokusebenza ngeebhloko zedatha (ukunyanzeliswa, ukuchithwa) kunokwenziwa ngabaphi na abalawuli, kunye nokubhaliweyo kwiidiski.
- Akukho zibuko lehlayo xa omnye wabalawuli engaphumeleli. Kwabanye, lo mzuzu ubonakala ubaluleke kakhulu. Eyona nto iphambili kukuba ukutshintsha ngaphakathi kwenkqubo yokugcina kufuneka kwenzeke ngokukhawuleza kunokuba kwicala lokusingatha. Kwaye ukuba kwimeko ye-NetApp efanayo, ekusebenzeni sifumene umkhenkce malunga nemizuzwana emi-5 xa sikhupha isilawuli kunye neendlela zokutshintsha, ngoko ngokutshintshela kwiHuawei kusafuneka siziqhelanise.
- Akukho mfuneko yokuqalisa kwakhona isilawuli xa uhlaziya. Oku kwaqala ukundikhathaza ngakumbi ngokukhutshwa rhoqo kweenguqulelo ezintsha kunye namasebe e-firmware e-NetApps. Ewe, uhlaziyo oluthile lweHuawei lusafuna ukuqaliswa kwakhona, kodwa hayi zonke.
- 4 Abalawuli beHuawei ngexabiso labalawuli ababini beNetApp. Njengoko benditshilo ngasentla, ngenxa yomgaqo-nkqubo wamaxabiso kaHuawei, inokukhuphisana neMid-range kunye neemodeli zayo eziphezulu.
- Ubukho beechips ezongezelelweyo kubalawuli beeshelufu kunye namakhadi echweba, anokuthi ajolise ekuphuculeni ukusebenza kwenkqubo.
Iingxaki kunye neenkxalabo ngokubanzi:
- Uxhulumaniso oluthe ngqo lweeshelufu kubalawuli okanye imfuno yenani elikhulu lamachweba angasemva ukudibanisa zonke iishelufu kubalawuli.
- Uyilo lwe-ARM kunye nobukho benani elikhulu le-chips - liya kusebenza njani ngokufanelekileyo, kwaye ngaba ukusebenza kuya kuba ngokwaneleyo?
Uninzi lweenkxalabo kunye noloyiko lunokupheliswa ngovavanyo lobuqu lomgca omtsha. Ndiyathemba ukuba kungekudala emva kokukhululwa baya kubonakala eMoscow kwaye kuya kubakho ngokwaneleyo ukuba bafumane ngokukhawuleza enye kwiimvavanyo zakho. Ukuza kuthi ga ngoku, sinokuthi ngokubanzi indlela yenkampani ibonakala inomdla, kwaye umgca omtsha ukhangeleka kakuhle kakhulu xa kuthelekiswa nabakhuphisana nabo. Ukuphunyezwa kokugqibela kuphakamisa imibuzo emininzi, kuba Siza kubona izinto ezininzi kuphela ekupheleni konyaka, kwaye mhlawumbi ngo-2020 kuphela.
umthombo: www.habr.com