Sixoxa ngokweenkcukacha ukuba yintoni eyenza i-OceanStor Dorado 18000 V6 ibe yinkqubo yogcino olukwinqanaba eliphezulu ngokwenene enogcino olundilisekileyo kwiminyaka ezayo. Kwangaxeshanye, sigxotha uloyiko oluqhelekileyo malunga nokugcinwa kwe-All-Flash kwaye sibonise indlela iHuawei ecudisa ngayo uninzi lwazo: i-NVMe yokuphela kokuphela, i-caching eyongezelelweyo kwi-SCM, kunye neqela lezinye izisombululo.
Ukwakheka kwedatha entsha - ukugcinwa kwedatha entsha
Ubunzulu bedatha buyanda kuwo onke amashishini. Kwaye icandelo lebhanki libonisa ngokucacileyo oku. Kule minyaka imbalwa idlulileyo, inani lentengiselwano zebhanki linyuke ngaphezu kwamaxesha alishumi. Njengoko ibonisa , kuphela eRashiya kwixesha elivela kwi-2010 ukuya kwi-2018 inani leentengiselwano ezingezizo zemali usebenzisa amakhadi eplastiki abonise ngaphezu kokunyuka kwamashumi amathathu - ukusuka kwi-5,8 ukuya kwi-172 ngomntu ngamnye ngonyaka. Okokuqala, uloyiso lwee-micropayments: uninzi lwethu luye lwanxulumana nebhanki ye-intanethi, kwaye ibhanki ngoku isesandleni sethu - kwifowuni.
Iziseko ze-IT zeziko lekhredithi kufuneka zilungele umngeni onjalo. Kwaye oku kungumngeni ngenene. Phakathi kwezinye izinto, ukuba ngaphambili ibhanki idinga ukuqinisekisa ukufumaneka kwedatha kuphela ngexesha leeyure zoshishino, ngoku i-24/7. Kuze kube kutshanje, i-5 ms yayithathwa njengenqanaba elamkelekileyo lokulinda, ngoko yintoni? Ngoku nokuba u-1 ms ugqithisile. Kwinkqubo yokugcina yanamhlanje, ekujoliswe kuyo yi-0,5 ms.
Okufanayo nokuthembeka: ngo-2010, ukuqonda kwe-empirical kwaqulunqwa ukuba kwanele ukuzisa inqanaba layo "kumashumi amahlanu" - 99,999%. Enyanisweni, oku kuqonda kuphelelwe lixesha. Ngo-2020, kuyinto eqhelekileyo ukuba ishishini lifune i-99,9999% yokugcina kunye ne-99,99999% yoyilo loyilo lonke. Kwaye oku akusiyo i-whim konke konke, kodwa imfuno engxamisekileyo: mhlawumbi akukho festile yexesha lokugcinwa kweziseko ezingundoqo, okanye incinci.
Ukucaca, kukulungele ukwenza ezi zalathisi kwinqwelo-moya yemali. Eyona ndlela ilula kumzekelo wamaziko emali. Itshathi engentla ibonisa ukuba ibhanki nganye kwezona ziphezulu zili-10 zehlabathi ifumana umvuzo ngeyure. KwiBhanki yezoShishino kunye neyoRhwebo yaseChina kuphela, oku akukho ngaphantsi kweedola zezigidi ezi-5. Le nto kanye ingakanani iyure yokunciphisa isiseko se-IT yombutho omkhulu wamatyala e-China iya kuxabisa (kwaye kuphela inzuzo elahlekileyo ithathelwa ingqalelo ukubala!). Kulo mbono, kucacile ukuba ukunciphisa ixesha lokunciphisa kunye nokunyuka kokuthembeka, kungekhona nje ngeepesenti ezimbalwa, kodwa kunye namacandelo eepesenti, zichanekile ngokupheleleyo. Akunjalo nje ngenxa yezizathu zokunyusa ukhuphiswano, kodwa nje ngenxa yokugcina izikhundla zemarike.
Utshintsho oluthelekisekayo lwenzeka nakwamanye amashishini. Umzekelo, kuthutho lwenqwelomoya: ngaphambi kobhubhane, ukuhamba ngenqwelomoya kwakusanda kuphela unyaka nonyaka, kwaye uninzi lwaqala ukulusebenzisa phantse njengeteksi. Ngokuphathelele iipatheni zabathengi, umkhwa wokufumaneka ngokupheleleyo kweenkonzo uye wathatha ingcambu kuluntu: ekufikeni kwisikhululo seenqwelomoya, kufuneka sixhume kwi-Wi-Fi, ukufikelela kwiinkonzo zokuhlawula, ukufikelela kwimephu yendawo, njl. ngenxa yoko, umthwalo kwiziseko ezingundoqo kunye neenkonzo kwiindawo zikawonke-wonke unyuke amaxesha amaninzi. Kwaye ezo ndlela zamaziko akhoyo, ulwakhiwo, ebesilugqala njengolwamkelekileyo kunyaka ophelileyo, luphelelwa lixesha.
Ngaba kuselithuba ukuba utshintshele kwi-All-Flash?
Ukusombulula iingxaki ezikhankanywe ngasentla, malunga nokusebenza, i-AFA - yonke i-flash-arrays, oko kukuthi, i-arrays eyakhelwe ngokupheleleyo kwi-flash - iyona nto ifanelekileyo. Ngaphandle kokuba, kude kube kutshanje, bekukho amathandabuzo malunga nokuba ayathelekiseka ekuthembekeni kunye nezo zihlanganiswe ngesiseko se-HDD kunye nee-hybride. Emva kwayo yonke loo nto, imemori ye-slid-state flash ine-metric ebizwa ngokuba lixesha eliphakathi phakathi kokusilela, okanye i-MTBF (ixesha eliphakathi phakathi kokusilela). Ukuthotywa kweeseli ngenxa yemisebenzi ye-I / O, yeha, inikwe.
Ngoko ke ithemba le-All-Flash lagutyungelwa ngumbuzo wendlela yokuthintela ukulahleka kwedatha kwimeko apho i-SSD iyala ukuba iphile ixesha elide. Ugcino lukhetho oluqhelekileyo, kuphela ixesha lokubuyisela eliya kuba likhulu ngokungamkelekanga ngokusekelwe kwiimfuno zangoku. Enye indlela yokuphuma kukuseka inqanaba lesibini lokugcina kwi-spindle drives, nangona kunjalo, ngeskimu esinjalo, ezinye zeenzuzo zenkqubo "ecacileyo" zilahlekile.
Nangona kunjalo, amanani athetha ngenye indlela: izibalo zeengxilimbela zoqoqosho lwedijithali, kuquka iGoogle, kwiminyaka yakutshanje ibonisa ukuba i-flash inamaxesha amaninzi athembekileyo ngaphezu kwee-hard drives. Ngaphezu koko, zombini ngexesha elifutshane kunye nexesha elide: ngokomyinge, iminyaka emine ukuya kwemithandathu idlula ngaphambi kokuba i-flash drives iphumelele. Ngokubhekiselele ekuthembekeni kokugcinwa kwedatha, akukho ndlela ingaphantsi kwedrive kwi-spindle magnetic disks, okanye zigqithise.
Enye ingxoxo yesiko exhasa iidrive ze-spindle kukufikeleleka kwazo. Ngokungathandabuzekiyo, iindleko zokugcina i-terabyte kwi-hard drive zisasezantsi. Kwaye ukuba uthathela ingqalelo kuphela iindleko zesixhobo, kuyabiza ukugcina i-terabyte kwi-spindle drive kune-SSD. Nangona kunjalo, kumxholo wocwangciso lwezemali, akubalulekanga nje kuphela ukuba isixhobo esithile sithengiwe kangakanani, kodwa nokuba yiyiphi indleko epheleleyo yokuba nayo ixesha elide - ukusuka kwiminyaka emithathu ukuya kwesixhenxe.
Ukusuka kule angle, yahluke ngokupheleleyo. Nokuba asikuhoyi ukuthotywa kunye noxinzelelo, oluthi, njengomthetho, lusetyenziswe kwi-flash arrays kwaye lwenza ukuba ukusebenza kwabo kube nenzuzo ngakumbi ngokwezoqoqosho, kusekho iimpawu ezinjengendawo yokubeka ethathwe ngamajelo eendaba, ukuchithwa kobushushu, kunye nokusetyenziswa kwamandla. Kwaye ngokutsho kwabo, ukugungxula kugqwesa abo bangaphambili. Ngenxa yoko, i-TCO yeenkqubo zokugcina umbane, ngokuthathela ingqalelo zonke iiparameters, ihlala iphantse ibe sisiqingatha kangangoko kwimeko ye-arrays kwi-spindle drives okanye i-hybrids.
Ngokweengxelo ze-ESG, iinkqubo zokugcina i-Dorado V6 Zonke i-Flash zinokufikelela kwiindleko zokunciphisa ubunini ukuya kuthi ga kwi-78% kwisithuba seminyaka emihlanu, kubandakanywa ngokukhutshwa okusebenzayo kunye nokunyanzeliswa, kwaye ngenxa yokusetyenziswa kwamandla aphantsi kunye nokutshatyalaliswa kobushushu. Inkampani yaseJamani yokuhlalutya i-DCIG ikwacebisa ukuba zisetyenziswe njengezona zilungileyo ngokwe-TCO ekhoyo namhlanje.
Ukusetyenziswa kweedrive zombuso oqinileyo kwenza kube lula ukugcina indawo esebenzisekayo, ukunciphisa inani lokungaphumeleli, ukunciphisa ixesha lokugcinwa kwesisombululo, ukunciphisa ukusetyenziswa kwamandla kunye nokutshatyalaliswa kokushisa kweenkqubo zokugcina. Kwaye kuyavela ukuba i-AFA ubuncinci ithelekiseka ngokwezoqoqosho kuluhlu lwemveli kwi-spindle drives, kwaye ihlala ibodlula.
IHuawei Royal Flush
Phakathi kwezinto zethu zokugcina i-All-Flash, indawo ephezulu yeyenkqubo ye-hi-end OceanStor Dorado 18000 V6. Kwaye kungekhona kuphela phakathi kwethu: ngokubanzi, kwishishini, ibambe irekhodi yesantya - ukuya kuthi ga kwi-20 yezigidi ze-IPOS kwi-configuration ephezulu. Ukongeza, ithembeke kakhulu: nokuba abalawuli ababini babhabha ngaxeshanye, okanye ukuya kuthi ga kwisixhenxe sabalawuli omnye emva komnye, okanye i-injini yonke ngaxeshanye, idatha iya kusinda. Izibonelelo ezibonakalayo "zeshumi elinesibhozo lamawaka" zinikwe yi-AI efakwe kuyo, kubandakanya nokuguquguquka ekulawuleni iinkqubo zangaphakathi. Makhe sibone ukuba kuphunyezwa njani oku.
Inxalenye enkulu, iHuawei inentloko yokuqala kuba yiyo kuphela umenzi kwimarike eyenza iinkqubo zokugcina ngokwayo - ngokupheleleyo kwaye ngokupheleleyo. Sineyethu isiphaluka, eyethu i-microcode, eyethu inkonzo.
Umlawuli kwiinkqubo ze-OceanStor Dorado zakhelwe kwiprosesa yoyilo kunye nemveliso yeHuawei - iKunpeng 920. Isebenzisa imodyuli yokulawula ye-Intelligent Baseboard Management Controller (iBMC), nayo eyethu. Iitshiphusi ze-AI, ezizezi i-Ascend 310, ezenza ngcono ukuqikelelwa kokusilela kwaye zenze izindululo zoseto, zikwaHuawei, kunye neebhodi ze-I / O - imodyuli ye-Smart I / O. Ekugqibeleni, abalawuli kwii-SSD benziwe kwaye benziwa ngathi. Konke oku kwanika isiseko sokwenza isisombululo esilungeleleneyo nesisebenza kakhulu.
Kulo nyaka uphelileyo, siphumeze iprojekthi yokwazisa le, inkqubo yethu yokugcina isiphelo esiphezulu, kwenye yeebhanki ezinkulu zaseRashiya. Ngenxa yoko, ngaphezu kwe-40 OceanStor Dorado 18000 iiyunithi V6 kwi-metro cluster ibonisa ukusebenza okuzinzileyo: ngaphezu kwesigidi se-IOPS sinokususwa kwinkqubo nganye, kwaye oku kuthathela ingqalelo ukulibaziseka ngenxa yomgama.
Ukuphela-ukuya-Ekuphelweni kweNVMe
Iinkqubo zokugcina zikaHuawei zamva nje zixhasa i-NVMe yokugqibela, esiyigxininisa ngesizathu. Iiprothokholi ezisetyenziswa ngokwesiko zokufikelela kwiidrive zaphuhliswa kwi-IT yakudala: zisekwe kwimiyalelo ye-SCSI (molo, 1980s!), Etsala imisebenzi emininzi ukuqinisekisa ukuhambelana komva. Nokuba yeyiphi indlela yofikelelo oyithathayo, umphezulu weprotocol kulo mzekelo mkhulu. Ngenxa yoko, kwiindawo zokugcina ezisebenzisa iiprothokholi ezibotshelelwe kwi-SCSI, ukulibaziseka kwe-I / O akunakuba ngaphantsi kwe-0,4–0,5 ms. Ngapha koko, ukuba yiprothokholi eyenzelwe ukusebenza ngememori ekhanyayo kwaye ikhululwe kwiintonga ngenxa yokuhambelana nomva emva, i-NVMe - I-Non-Volatile Memory Express - ibetha i-latency ukuya kwi-0,1 ms, ngaphezu koko, hayi kwinkqubo yokugcina, kodwa isitaki sonke, ukusuka kumamkeli ukuya kwiidrive. Akumangalisi ukuba, i-NVMe ihambelana neendlela zokuphuhlisa ukugcinwa kwedatha kwikamva elibonakalayo. Sikwathembele kwi-NVMe- kwaye ngokuthe ngcembe siyahamba sisuka kwi-SCSI. Zonke iinkqubo zokugcina zeHuawei eziveliswe namhlanje, kubandakanywa umgca weDorado, inkxaso ye-NVMe (nangona kunjalo, njengesiphelo sokugqibela siphunyezwa kuphela kwiimodeli eziphambili ze-Dorado V6 series).
I-FlashLink: I-Fistful yeTechnologies
Itekhnoloji yelitye lembombo kulo lonke umgca we-OceanStor Dorado yiFlashLink. Ngokuchanekileyo, ligama elidibanisa isethi edibeneyo yobuchwephesha esebenza ukuqinisekisa ukusebenza okuphezulu kunye nokuthembeka. Oku kubandakanya itekhnoloji yokunciphisa kunye noxinzelelo, ukusebenza kwenkqubo yokuhanjiswa kwedatha ye-RAID 2.0+, ukwahlulwa kwedatha "ebandayo" kunye "neshushu", ukurekhoda koluhlu olupheleleyo lwedatha (ukubhala ngokungacwangciswanga, kunye nedatha entsha kunye netshintshileyo, idityaniswe ibe yi- isitakhi esikhulu nesibhalwa ngokulandelelanayo, nto leyo eyandisa isantya sokufunda-bhala).
Phakathi kwezinye izinto, iFlashLink ibandakanya amacandelo amabini abalulekileyo - Ukunxiba iNqanaba kunye neGlobal Garbage Collection. Kufuneka zisingathwe ngokwahlukeneyo.
Enyanisweni, nayiphi na i-drive state drive yinkqubo yokugcina kwi-miniature, enenani elikhulu leebhloko kunye nomlawuli oqinisekisa ukufumaneka kwedatha. Kwaye kunikezelwe, phakathi kwezinye izinto, ngenxa yokuba idatha evela kwiiseli "ezibuleweyo" zidluliselwa "kungabulawa". Oku kuqinisekisa ukuba zinokufundwa. Kukho ii-algorithms ezahlukeneyo zokudluliselwa okunjalo. Kwimeko eqhelekileyo, umlawuli uzama ukulungelelanisa ukunxiba kwazo zonke iiseli zokugcina. Le ndlela inecala elibi. Xa idatha ihanjiswa ngaphakathi kwe-SSD, inani lemisebenzi ye-I / O eyenzayo iyancipha kakhulu. Okwangoku, bububi obuyimfuneko.
Ngaloo ndlela, ukuba kukho ii-SSD ezininzi kwinkqubo, i-"saw" ibonakala kwigrafu yokusebenza, kunye nokunyuka okubukhali. Inkathazo kukuba enye idrayivu ukusuka echibini ingaqala ukufuduka kwedatha nangaliphi na ixesha, kwaye ukusebenza ngokubanzi kususwe ngexesha elifanayo kuzo zonke ii-SSD kuluhlu. Kodwa iinjineli zeHuawei zifumene indlela yokuphepha "isarha".
Ngethamsanqa, bobabini abalawuli kwiidrives, kunye nomlawuli wokugcina, kunye ne-firmware yeHuawei "zenzalelwane", ezi nkqubo kwi-OceanStor Dorado 18000 V6 ziqaliswe phakathi, ngokuhambelana kuzo zonke iidrives kwi-array. Ngaphezu koko, ngokomyalelo womlawuli wokugcina, kwaye ngokuchanekileyo xa kungekho mthwalo onzima we-I / O.
I-chip yobukrelekrele bokwenziwa ikwabandakanyeka ekukhetheni ixesha elifanelekileyo lokudlulisela idatha: ngokusekwe kumanani-nkcazo kwiinyanga ezimbalwa ezidlulileyo, iyakwazi ukuqikelela ngeyona ndlela iphezulu yokuba ulindele i-I / O esebenzayo kungekudala, kwaye ukuba impendulo ayilunganga, kwaye umthwalo kwinkqubo ngexesha langoku lincinci, ngoko umlawuli uyalela zonke iidrives: abo bafuna i-Wear Leveling kufuneka bayenze kanye kunye kunye ne-synchronously.
Ngaphezu koko, umlawuli wenkqubo ubona okwenzekayo kwiseli nganye ye-drive, ngokungafaniyo neenkqubo zokugcina abavelisi abakhuphisanayo: banyanzeliswa ukuba bathenge i-media-state media evela kubathengisi beqela lesithathu, yiyo loo nto inkcazo yezinga leseli ayifumaneki. abalawuli bogcino olunjalo.
Ngenxa yoko, i-OceanStor Dorado 18000 V6 inexesha elifutshane kakhulu lokuthotywa kokusebenza kwi-Wear Leveling operation, kwaye yenziwa ngokukodwa xa ingaphazamisi ezinye iinkqubo. Oku kunika ukusebenza okuphezulu okuzinzileyo rhoqo.
Yintoni eyenza i-OceanStor Dorado 18000 V6 ithembekile
Kukho amanqanaba amane okuthembeka kwiinkqubo zangoku zokugcina idatha:
- hardware, kwinqanaba lokuqhuba;
- bokwakha, kwinqanaba lezixhobo;
- ulwakhiwo kunye nenxalenye yesoftware;
- eyongezelekayo, enxulumene nesisombululo xa iyonke.
Ekubeni, siyakhumbula, inkampani yethu iyila kwaye ivelise onke amacandelo enkqubo yokugcina ngokwayo, sinika ukuthembeka kwinqanaba ngalinye kwamane, ngokukwazi ukubeka iliso ngokucokisekileyo ukuba kwenzeka ntoni ukuba yeyiphi kubo okwangoku.
Ukuthembeka kweedrives kuqinisekiswa ngokuyinhloko ngokuchazwa kwangaphambili kwe-Wear Leveling kunye neGlobal Garbage Collection. Xa i-SSD ibonakala ngathi yibhokisi emnyama kwinkqubo, ayinalo nofifi ukuba iiseli ziguga njani kuyo. Kwi-OceanStor Dorado 18000 V6, iidrives ziyabonakala, nto leyo eyenza kube lula ukulinganisa ngokulinganayo kuzo zonke iidrives kuluhlu. Ngaloo ndlela, kuvela ukuba yandisa kakhulu ubomi be-SSD kwaye ikhusele umgangatho ophezulu wokuthembeka komsebenzi wabo.
Kwakhona, ukuthembeka kwe-drive kuchaphazeleka kwiiseli ezongezelelweyo ezingafunekiyo kuyo. Kwaye kunye nokugcinwa okulula, inkqubo yokugcina isebenzisa okubizwa ngokuba ziiseli ze-DIF, eziqulethe i-checksums, kunye neekhowudi ezongezelelweyo zokukhusela ibhloko nganye kwimpazamo enye, ngaphezu kokukhuselwa kwinqanaba le-RAID.
Isitshixo sokuthembeka kwezakhiwo sisisombululo se-SmartMatrix. Ngamafutshane, aba ngabalawuli abane abahlala kwi-backplane engabonakaliyo njengenxalenye yenjini enye (injini). Ezimbini zezi njini - ngokulandelanayo, kunye nabalawuli abasibhozo - baqhagamshelwe kwiishelufu eziqhelekileyo ezinee-drives. Ndiyabulela kwi-SmartMatrix, nokuba abalawuli abasixhenxe kwabasibhozo bayekile ukusebenza, ukufikelela kuyo yonke idatha, kokubini ukufunda nokubhala, kuya kuhlala. Kwaye ngelahleko yabathandathu kwabasibhozo abalawuli, kuya kuba nako ukuqhubeka nokusebenza kwe-caching.
Iibhodi ze-I / O kwi-backplane efanayo yokwenziwa ziyafumaneka kubo bonke abalawuli, zombini ngaphambili nangasemva. Ngeskimu soqhagamshelo lwe-mesh epheleleyo, kungakhathaliseki ukuba yintoni na engaphumeleliyo, ukufikelela kwiidrives kuhlala kugcinwa.
Eyona nto ifanelekileyo ukuthetha ngokuthembeka koyilo lwezakhiwo kumxholo weendlela zokungaphumeleli ukuba inkqubo yokugcina iyakwazi ukukhusela.
Ukugcinwa kuya kusinda kwimeko ngaphandle kokulahlekelwa ukuba abalawuli ababini "bawa", kubandakanywa ngexesha elifanayo. Uzinzo olunjalo lufezekiswa ngenxa yokuba nayiphi na ibhloko ye-cache ngokuqinisekileyo ineekopi ezimbini ezingaphezulu kubalawuli abahlukeneyo, oko kukuthi, ngokupheleleyo kukho iikopi ezintathu. Kwaye ubuncinane enye ikwi-injini eyahlukileyo. Ke, nokuba i-injini yonke iyayeka ukusebenza - kunye nabalawuli bayo abane - kuqinisekisiwe ukuba lonke ulwazi olugcinwe kwimemori ye-cache luya kugcinwa, kuba i-cache iya kuphinda iphindwe kumlawuli omnye ukusuka kwi-injini eseleyo. Ekugqibeleni, ngoxhulumaniso lwe-serial, ungalahlekelwa ukuya kuthi ga kwisixhenxe sabalawuli, kwaye nokuba bacinywe kwiibhloko ezimbini, - kwaye kwakhona, yonke i-I / O kunye nayo yonke idatha evela kwi-cache iya kugcinwa.
Xa kuthelekiswa nokugcinwa kwe-hi-end evela kwabanye abavelisi, kunokubonwa ukuba kuphela iHuawei ibonelela ngokhuseleko olupheleleyo lwedatha kunye nokufumaneka ngokupheleleyo nasemva kokufa kwabalawuli ababini okanye injini yonke. Uninzi lwabathengisi basebenzisa iskimu esibizwa ngokuba ngamaqela olawulo apho iidrive ziqhagamshelwe. Ngelishwa, kolu qwalaselo, ukuba abalawuli ababini abaphumeleli, kukho umngcipheko wokulahlekelwa yi-I / O ukufikelela kwi-drive.
Yeha, ukungaphumeleli kwecandelo elinye akukhutshelwa ngaphandle ngokuphandle. Kule meko, ukusebenza kuya kuhla kangangexesha elithile: kuyimfuneko ukuba iindlela zakhiwe ngokutsha kwaye ukufikelela kwemisebenzi ye-I / O kuqalwa kwakhona ngokubhekiselele kwezo bloko zize kubhala, kodwa bezingekabhalwa, okanye ziceliwe ukuba zibhale. zifundwe. I-OceanStor Dorado 18000 V6 ine-avareji yexesha lokwakha kwakhona malunga nomzuzwana omnye, ngokuphawulekayo ngaphantsi kweyona analogu ikufutshane kushishino (4 s). Oku kufezekiswa ngokubonga kwi-backplane efanayo: xa umlawuli ehluleka, abanye ngokukhawuleza babone igalelo / imveliso yayo, kwaye ngokukodwa ibhloko yedatha engabhalwanga; ngenxa yoko, umlawuli okufutshane uthatha inkqubo. Ngenxa yoko ukukwazi ukubuyisela ukusebenza ngomzuzwana nje. Ndimele ndongeze, ikhefu lizinzile: okwesibini kumlawuli omnye, okwesibini kwenye, njl.
Kwi-OceanStor Dorado 18000 V6 i-backplane edlulayo, zonke iibhodi ziyafumaneka kubo bonke abalawuli ngaphandle kwedilesi eyongezelelweyo. Oku kuthetha ukuba nawuphi na umlawuli uyakwazi ukuthatha i-I / O nakweliphi na izibuko. Nokuba yeyiphi na izibuko i-I/O engena kuyo, umlawuli uya kuba ekulungele ukuyiqhuba. Ngenxa yoko - inani elincinci lokudluliselwa kwangaphakathi kunye nokulula okubonakalayo kokulinganisa.
Ukulinganisa okungaphambili kwenziwa kusetyenziswa umqhubi we-multipathing, kwaye ulungelelwaniso olongezelelweyo lwenziwa ngaphakathi kwenkqubo ngokwayo, ekubeni bonke abalawuli babona zonke izibuko ze-I / O.
Ngokwemveli, zonke ii-arrays zeHuawei ziyilwe ngendlela yokuba zingabi nandawo enye yokusilela. Ukutshintshana okushushu, ngaphandle kokuqalisa inkqubo, iboleka kuzo zonke izinto zayo: abalawuli, iimodyuli zamandla, iimodyuli zokupholisa, iibhodi ze-I / O, njl.
Iphakamisa ukuthembeka kwenkqubo iyonke kunye neteknoloji efana ne-RAID-TP. Eli ligama leqela le-RAID, elikuvumela ukuba uqinisekise ngokuchasene nokusilela ngaxeshanye ukuya kuthi ga kwiidrive ezintathu. Kwaye Ukwakhiwa kwakhona kwe-TB e-1 kuthatha ngaphantsi kwemizuzu engama-30. Esona siphumo sirekhodiweyo siphindwe kasibhozo ngokukhawuleza kunomthamo ofanayo wedatha kwi-spindle drive. Ke, kuyenzeka ukuba usebenzise iidrive ezinamandla kakhulu, yithi i-7,68 okanye i-15 TB, kwaye ungakhathazeki malunga nokuthembeka kwenkqubo.
Kubalulekile ukuba ukwakhiwa kwakhona kuqhutywe kungekhona kwi-spare drive, kodwa kwindawo esecaleni - umthamo wokugcina. I-drive nganye inesithuba esizinikeleyo esisetyenziselwa ukubuyisela idatha emva kokusilela. Ngaloo ndlela, ukubuyiswa akwenziwanga ngokuhambelana neskimu "esininzi ukuya kwelinye", kodwa ngokwenkqubo "yabaninzi ukuya kwabaninzi", ngenxa yokuba kunokwenzeka ukukhawuleza ngokukhawuleza inkqubo. Kwaye nje ukuba kukho umthamo wamahhala, ukubuyiswa kunokuqhubeka.
Kufuneka kwakhona sikhankanye ukuthembeka kwesisombululo esivela kwiindawo ezininzi zokugcina - kwi-metro cluster, okanye, kwisigama seHuawei, i-HyperMetro. Izikimu ezinjalo zixhaswa kulo lonke uluhlu lwemodeli yeenkqubo zethu zokugcina idatha kwaye zivumela zombini iifayile kunye nokufikelela kwibhloko. Ngaphezu koko, kwibhloko enye, isebenza zombini ngeFiber Channel kunye ne-Ethernet (kubandakanywa ne-iSCSI).
Ngokwenene, sithetha ngokuphindaphinda kwe-bidirectional ukusuka kwinkqubo yokugcina enye ukuya kwenye, apho i-LUN ephindaphindiweyo inikwa i-LUN-ID efanayo njengeyona nto iphambili. Itekhnoloji isebenza ngokuyintloko ngenxa yokuhambelana kwee-cache ezivela kwiinkqubo ezimbini ezahlukeneyo. Ngaloo ndlela, kumamkeli akukhathaliseki nokuba ikweliphi na icala: zombini apha naphaya ibona uqhubo lwengqiqo efanayo. Ngenxa yoko, akukho nto ikuthintelayo ekusasazeni iqela le-failover elithatha indawo ezimbini.
Kwikhoram, kusetyenziswe umatshini weLinux obonakalayo okanye obonakalayo. Inokuthi ibekwe kwindawo yesithathu, kwaye iimfuno zezibonelelo zayo zincinci. Imeko eqhelekileyo kukurenta indawo enenyani kuphela ukusingatha ikhoram ye-VM.
Itekhnoloji ibuye ivumele ukwandiswa: ezimbini zokugcina - kwi-metro cluster, indawo eyongezelelweyo - kunye nokuphindaphinda kwe-asynchronous.
Ngokomlando, abathengi abaninzi baye benza "i-zoo yokugcina": iqela leenkqubo zokugcina ezivela kubakhiqizi abahlukeneyo, iimodeli ezahlukeneyo, izizukulwana ezahlukeneyo, kunye nokusebenza okuhlukeneyo. Nangona kunjalo, inani leenginginya zinokuba nomtsalane, kwaye zihlala zibonwa njengenyani. Kwiimeko ezinjalo, enye yezinto eziphambili zolawulo kukubonelela ngokukhawuleza, ngokulinganayo, nangokufanelekileyo ngeediski ezinengqiqo kwiinginginya, ngokukhethekileyo ngendlela engakhange ihlolisise apho ezi diski zikhoyo ngokwasemzimbeni. Yiloo nto isisombululo sethu sesoftware ye-OceanStor DJ senzelwe yona, esinokulawula ngamxhelo-mnye iinkqubo zogcino ezahlukeneyo kunye nokubonelela ngeenkonzo kuzo ngaphandle kokubotshelelwa kwimodeli ethile yokugcina.
I-AI efanayo
Njengoko sele kukhankanyiwe, i-OceanStor Dorado 18000 V6 ineeprosesa ezakhelwe ngaphakathi kunye ne-algorithms yobukrelekrele bokwenziwa - Ukunyuka. Ziyasetyenziswa, okokuqala, ukuqikelela ukungaphumeleli, kwaye okwesibini, ukwenza iingcebiso zokulungisa, okwandisa ukusebenza kunye nokuthembeka kokugcinwa.
I-horizon yokubikezela iinyanga ezimbini: oomatshini be-AI bathatha into eya kwenzeka ngokusemandleni aphezulu ngeli xesha, lixesha lokwandisa, ukutshintsha imigaqo-nkqubo yokufikelela, njl. Izindululo zikhutshwe kwangaphambili, ezikuvumela ukuba ucwangcise iifestile zokugcina inkqubo ngaphambi kwexesha. .
Inqanaba elilandelayo lophuhliso lwe-AI ukusuka kwiHuawei kukuzisa kwinqanaba lehlabathi. Ngexesha lokugcinwa kwenkonzo - i-failover okanye iingcebiso - iHuawei idibanisa ulwazi kwiinkqubo zokugawulwa kwemithi kuzo zonke iindawo zokugcina zabathengi. Ngokusekwe kulwazi oluqokelelweyo, uhlalutyo lwento eyenzekayo okanye ukusilela okunokwenzeka kuyenziwa kwaye kwenziwe iingcebiso zehlabathi-ngokusekelwe ekusebenzeni kwenkqubo eyodwa yokugcina okanye ishumi elinesibini, kodwa kwinto eyenzekayo kwaye yenzekile ngamawaka anjalo. izixhobo. Isampulu inkulu, kwaye isekelwe kuyo, i-algorithms ye-AI iqala ukufunda ngokukhawuleza, yiyo loo nto ukuchaneka koqikelelo kunyuka kakhulu.
Ukuhambelana
Ngo-2019-2020, bekukho intelekelelo eninzi malunga nokusebenzisana kwezixhobo zethu kunye neemveliso zeVMware. Ukugqiba ukubayeka, sibhengeza ngenkathalo: VMware liqabane likaHuawei. Zonke iimvavanyo ezicingelwayo zenziwa ukuhambelana kwehardware yethu kunye nesoftware yayo, kwaye ngenxa yoko, kwiwebhusayithi yeVMware, iphepha lokuhambelana kwehardware lidwelisa iinkqubo zokugcinwa ezikhoyo ngoku zemveliso yethu ngaphandle kogcino. Ngamanye amazwi, kunye nemeko yesoftware yeVMware, ungasebenzisa ukugcinwa kweHuawei, kubandakanya iDorado V6, ngenkxaso epheleleyo.
Kuyafana nakwintsebenziswano yethu neBrocade. Siyaqhubeka nokusebenzisana kwaye sivavanya iimveliso zethu ukuba ziyahambelana kwaye sinokuthi ngokuzithemba sichaze ukuba iinkqubo zethu zokugcina zihambelana ngokupheleleyo nezitshintshi zamva nje zeBrocade FC.
Yintoni elandelayo?
Siyaqhubeka nokuphuhlisa nokuphucula iiprosesa zethu: ziyakhawuleza, zithembeke ngakumbi, ukusebenza kwazo kuyakhula. Sikwaphucula iitshiphusi ze-AI - zisekwe kuzo, iimodyuli zikwaveliswa ezikhawulezisa ukuthotywa kunye noxinzelelo. Abo banokufikelela kwi-configurator yethu banokuthi baqaphele ukuba la makhadi sele ekhona ukuze aodolwe kwiimodeli zeDorado V6.
Sikwaqhubela phambili kwi-caching eyongezelelweyo kwiMemori yeKlasi yoGcino-inkumbulo engaguquguqukiyo ene-latency ephantsi kakhulu, malunga ne-microseconds ezilishumi ngokufundwayo. Phakathi kwezinye izinto, i-SCM inika ukunyusa ukusebenza, ngokuyintloko xa usebenza ngedatha enkulu naxa usombulula imisebenzi ye-OLTP. Emva kohlaziyo olulandelayo, amakhadi eSCM kufuneka afumaneke ukuze aodolwe.
Kwaye kunjalo, ukusebenza kokufikelela kwefayile kuya kwandiswa kulo lonke uluhlu lokugcinwa kwedatha yeHuawei-hlala ubukele uhlaziyo lwethu.
umthombo: www.habr.com