Siphikisana ngokuphelele ngokuthi i-OceanStor Dorado 18000 V6 yenza uhlelo lokugcina idatha olusezingeni eliphezulu ngempela olunokugcinwa okuhloniphekile iminyaka ezayo. Ngesikhathi esifanayo, sixosha ukukhathazeka okuvamile mayelana nesitoreji se-All-Flash futhi sibonise ukuthi uHuawei uthola kanjani okuningi kuzo: i-NVMe yokugcina-ekupheleni, ukugcinwa kwesikhashana okwengeziwe ku-SCM kanye nenqwaba yezinye izixazululo.
Ukwakheka kwedatha okusha - ukugcinwa kwedatha okusha
Ukuqina kwedatha kuyanda kuzo zonke izimboni. Futhi umkhakha wamabhange uwumfanekiso ocacile walokhu. Eminyakeni embalwa edlule, inani lemisebenzi yasebhange lenyuke ngokuphindwe kashumi. Njengoba kukhonjisiwe , eRussia kuphela, kusukela ngo-2010 kuya ku-2018, inani lokuthengiselana okungewona imali usebenzisa amakhadi epulasitiki libonise ukwanda okungaphezu kwamashumi amathathu - ukusuka ku-5,8 kuya ku-172 umuntu ngamunye ngonyaka. Iphuzu ngokuyinhloko limayelana nokunqoba kwama-micropayments: iningi lethu selijwayele ukubhanga nge-inthanethi, futhi manje sesinebhange ezandleni zethu - kumafoni ethu.
Ingqalasizinda ye-IT yesikhungo sezikweletu kumele isilungele leyo nselelo. Futhi lokhu kuyinselele ngempela. Phakathi kwezinye izinto, uma ngaphambilini ibhange belidinga ukuqinisekisa ukutholakala kwedatha kuphela ngamahora alo ebhizinisi, manje selidinga ukutholakala 24/7. Kuze kube muva nje, i-5 ms ibithathwa njengezinga elamukelekayo lokubambezeleka, kodwa-ke kuthiwani? Manje ngisho no-1 ms muningi kakhulu. Kusistimu yesitoreji yesimanje, inani eliqondiwe ngu-0,5 ms.
Into efanayo ngokwethembeka: ngawo-2010, kwakhiwa ukuqonda okunamandla ukuthi kwanele ukuletha izinga layo "emashumini amahlanu" - 99,999%. Yiqiniso, lokhu kuqonda sekuphelelwe yisikhathi. Ngo-2020, kuyinto evamile ukuthi amabhizinisi afune u-99,9999% ukuze agcinwe kanye no-99,99999% wesixazululo sezokwakha sezakhiwo. Futhi lokhu akusona isifiso, kodwa isidingo esiphuthumayo: noma ngabe alikho iwindi lesikhathi sokulungiswa kwengqalasizinda, noma lincane.
Ukuze kucace, kulula ukufaka lezi zinkomba endizeni yemali. Indlela elula ukusebenzisa isibonelo sezinhlangano zezezimali. Ishadi elingenhla libonisa ukuthi ibhange ngalinye kwayi-10 aphezulu emhlabeni lizuza malini ngehora. Ebhange Lezimboni Nezohwebo lase-China kuphela, lokhu akukhona ngaphansi kwamaRandi ayizigidi ezingu-5. Yilokho kanye isikhathi sokuphumula sehora lengqalasizinda ye-IT yesikhungo esikhulu sezikweletu e-China esingabiza (futhi ukubala kucabangela kuphela inzuzo elahlekile!). Kusukela kulo mbono, kusobala ukuthi ukunciphisa isikhathi sokuphumula nokwethenjelwa okwandayo, hhayi nje ngamaphesenti ambalwa, kodwa ngisho nangengxenye yephesenti, kufaneleka ngokuphelele. Hhayi nje ngenxa yezizathu zokukhulisa ukuncintisana, kodwa futhi ngenxa nje yokulondoloza izikhundla zemakethe.
Izinguquko eziqhathanisekayo ziyenzeka kwezinye izimboni. Isibonelo, kwezokuthutha ngendiza: ngaphambi kwalolu bhubhane, ukuhamba ngendiza kwakudlondlobala unyaka nonyaka, futhi abaningi baqala ukukusebenzisa cishe njengetekisi. Ngokuqondene namaphethini wabathengi, umkhuba wokutholakala okuphelele kwezinsizakalo usugxile emphakathini: lapho sifika esikhumulweni sezindiza, sidinga uxhumano lwe-Wi-Fi, ukufinyelela ezinsizeni zokukhokha, imephu yendawo, njll. umthwalo kwingqalasizinda kanye nezinsiza ezindaweni zomphakathi usukhule izikhathi eziningi. Futhi lezo zindlela zengqalasizinda nokwakha esizicabange zamukelekile ngisho nonyaka odlule ziphelelwa yisikhathi ngokushesha.
Ingabe kusesekuseni kakhulu ukuthi ungashintshela ku-All-Flash?
Ukuze uxazulule izinkinga ezishiwo ngenhla, ngokusebenza, i-AFA - ama-flash arrays, okungukuthi, ama-arrays akhiwe ngokuphelele ku-flash - afaneleka kakhulu. Kuze kube muva nje, bekusenokungabaza ngokuthi ngabe ziyafaniswa yini ekuthembekeni kwalezo eziqoqwe ngesisekelo sama-HDD nama-hybrid. Phela, inkumbulo ye-flash yesimo esiqinile inemethrikhi ebizwa ngokuthi isikhathi esimaphakathi phakathi kokuhluleka, noma i-MTBF (isikhathi esimaphakathi phakathi kokuhluleka). Ukucekelwa phansi kweseli ngenxa yemisebenzi ye-I/O, maye, kunikezwe.
Ngakho-ke amathemba e-All-Flash afiphazwa wumbuzo wokuthi ungakuvimbela kanjani ukulahleka kwedatha uma i-SSD izofa. Ukwenza ikhophi yasenqolobaneni kuyinketho evamile, kodwa isikhathi sokubuyisela singaba side ngokungamukeleki ngokusekelwe ezimfuneko zesimanje. Enye indlela yokuphuma ukusetha izinga lesibili lokugcina kuma-spindle drives, kodwa ngalolu hlelo ezinye zezinzuzo zesistimu ye-"strictly flash" ziyalahleka.
Kodwa-ke, izinombolo zisho okuhlukile: izibalo ezivela emidondoshiya yomnotho wedijithali, kuhlanganise ne-Google, eminyakeni yamuva nje zibonisa ukuthi i-flash inokwethenjelwa izikhathi eziningi kunama-hard drive. Ngaphezu kwalokho, kokubili esikhathini esifushane nangesikhathi eside: ngokwesilinganiso, kudlula iminyaka emine kuya kweyisithupha ngaphambi kokuba ama-flash drive ahluleke. Mayelana nokuthembeka kokugcinwa kwedatha, awekho ngaphansi kwanoma iyiphi indlela kumadrayivu ku-spindle magnetic disks, futhi ayawedlula.
Enye ingxabano yendabuko evuna amadrayivu e-spindle ukufinyeleleka kwawo. Akungabazeki ukuthi izindleko zokugcina i-terabyte ku-hard drive zisaphansi kakhulu. Futhi uma ucabangela kuphela izindleko ze-hardware, kushibhile ukugcina i-terabyte ku-spindle drive kune-SSD. Kodwa-ke, esimweni sokuhlelwa kwezimali, akukhathaleki kuphela ukuthi ingakanani idivayisi ethengiwe, kodwa futhi ukuthi izindleko eziphelele zokuba ngumnikazi wayo isikhathi eside - kusukela eminyakeni emithathu kuya kweyisikhombisa.
Kusukela kule angle, yonke into ihluke ngokuphelele. Ngisho noma sikhipha ukuphindaphindeka nokucindezelwa, okuvame ukusetshenziswa kuma-flash array futhi kwenze ukusebenza kwawo kube nenzuzo enkulu ngokwezomnotho, izici ezifana nesikhala esithathwe abezindaba ku-rack, ukuchithwa kokushisa, kanye nokusetshenziswa kwamandla kuhlala. Futhi ngokusho kwabo, i-flush idlula abandulelayo. Ngenxa yalokhu, i-TCO yezinhlelo zokugcinwa kwe-flash, kucatshangelwa wonke amapharamitha, imvamisa icishe ibe yingxenye ephansi njengoba kwenzeka kuma-arrays kuma-spindle drives noma ama-hybrids.
Ngokwemibiko evela ejensi ye-ESG, ezinhlelweni zokugcina i-Dorado V6 All-Flash kungenzeka ukuzuza ukwehliswa kwezindleko zobunikazi kuze kufike ku-78% esikhathini esiyiminyaka emihlanu - okuhlanganisa ngokukhipha okusebenzayo nokucindezelwa futhi ngenxa yamandla aphansi. ukusetshenziswa kanye nokuchithwa kokushisa. Inkampani yaseJalimane yokuhlaziya i-DCIG iphinde ituse ukuthi zisetshenziswe njengazo ezitholakala namuhla ngokwe-TCO.
Ukusetshenziswa kwamadrayivu e-solid-state kwenza kube nokwenzeka ukonga isikhala esisebenzisekayo, ukunciphisa inani lokwehluleka, ukunciphisa isikhathi sokusevisa isixazululo, nokunciphisa ukusetshenziswa kwamandla kanye nokuchithwa kokushisa kwezinhlelo zokugcina. Futhi kuvele ukuthi i-AFA ngokwezomnotho okungenani iqhathaniswa nezinhlelo zendabuko kuma-spindle drives, futhi imvamisa iyawadlula.
I-Royal flush evela kuHuawei
Phakathi kwesitoreji sethu se-All-Flash, indawo ephezulu ingeyohlelo oluphezulu lwe-OceanStor Dorado 18000 V6. Futhi hhayi phakathi kwethu kuphela: embonini iyonke, iphethe irekhodi lejubane - kufika ku-20 million IPOS ekucushweni okuphezulu. Ngaphezu kwalokho, ithembeke ngokwedlulele: ngisho noma izilawuli ezimbili zindiza ngesikhathi esisodwa, noma izilawuli ezingafika kweziyisikhombisa ngokulandelana, noma injini yonke ngasikhathi sinye, idatha izosinda. I-AI eyakhelwe kuyo inikeza izinzuzo ezinkulu "kwezinkulungwane eziyishumi nesishiyagalombili", okuhlanganisa nokuguquguquka ekulawuleni izinqubo zangaphakathi. Ake sibone ukuthi konke lokhu kufinyelelwa kanjani.
Ngokwezinga elikhulu, iHuawei inesiqalo ngoba iwukuphela komkhiqizi emakethe owenza izinhlelo zokugcina idatha ngokwayo - ngokuphelele futhi ngokuphelele. Sinesekhethi yethu, i-microcode yethu, kanye nenkonzo yethu.
Isilawuli ezinhlelweni ze-OceanStor Dorado sakhelwe phezu kwephrosesa yokuklama nokukhiqiza kwe-Huawei - i-Kunpeng 920. Sisebenzisa i-Intelligent Baseboard Management Controller (iBMC), nayo eyethu. Ama-chips e-AI, okuyi-Ascend 310, enza ngcono izibikezelo zokwehluleka futhi enze izincomo kuzilungiselelo, nawo avela kuHuawei, njengamabhodi e-I/O - imojuli ye-Smart I/O. Ekugcineni, izilawuli kumadrayivu e-solid-state aklanywa futhi akhiqizwa endlini. Konke lokhu kwanikeza isisekelo sokwenza isisombululo esinokulinganisela futhi esisebenza kahle kakhulu.
Onyakeni odlule, senze iphrojekthi yokusebenzisa lolu, uhlelo lwethu lokugcina olusezingeni eliphezulu, kwelinye lamabhange amakhulu aseRussia. Ngenxa yalokho, amayunithi angaphezu kuka-40 e-OceanStor Dorado 18000 V6 ku-metro cluster abonisa ukusebenza okuzinzile: ama-IOPS angaphezu kwesigidi angasuswa ohlelweni ngalunye, futhi lokhu kucabangela ukubambezeleka ngenxa yebanga.
I-NVMe yokuphela-kuya-ekupheleni
Izinhlelo zokugcina ze-Huawei zakamuva zisekela i-NVMe ekupheleni, okuyinto esigxila kuyo ngesizathu. Amaphrothokholi okufinyelela esitoreji asetshenziswa ngokwesiko athuthukiswa emandulo ye-IT: asuselwa kumiyalo ye-SCSI (sawubona, 1980s!), ehlanganisa imisebenzi eminingi yokuqinisekisa ukuhambisana okubuyela emuva. Noma ngabe iyiphi indlela yokufinyelela oyikhethayo, isihloko sephrothokholi kuleli cala sikhulu kakhulu. Ngenxa yalokho, kumadivayisi okugcina asebenzisa amaphrothokholi asekelwe ku-SCSI, ukubambezeleka kwe-I/O akukwazi ukuba ngaphansi kuka-0,4–0,5 ms. Ngokulandelayo, ukuba iphrothokholi edalelwe ukusebenza ngememori ye-flash futhi ikhululwe ezindukuni ngenxa yokuhambisana nemuva, i-NVMe - Non-Volatile Memory Express - yehlisa ukubambezeleka kube ngu-0,1 ms, hhayi ohlelweni lokugcina, kodwa kulo lonke. isitaki, ukusuka kosokhaya kuya kumadrayivu. Akumangazi ukuthi i-NVMe ihambisana nezitayela zokuthuthukiswa kokugcinwa kwedatha esikhathini esizayo esibonakalayo. Nathi sibeke ukubheja kwethu ku-NVMe futhi kancane kancane siyasuka ku-SCSI. Zonke izinhlelo ze-Huawei zokugcina ezikhiqizwe namuhla, kufaka phakathi ulayini we-Dorado, zisekela i-NVMe (noma kunjalo, njenge-end-to-end isetshenziswa kuphela kumamodeli athuthukile ochungechunge lwe-Dorado V6).
I-FlashLink: idlanzana lobuchwepheshe
Ubuchwepheshe besisekelo sawo wonke ulayini we-OceanStor Dorado yiFlashLink. Ngokunembayo, yitemu elihlanganisa isethi ebalulekile yobuchwepheshe obusebenza ukuze kuqinisekiswe ukusebenza okuphezulu nokuthembeka. Lokhu kuhlanganisa ubuchwepheshe bokukhipha iphindiwe kanye nokucindezela, ukusebenza kwesistimu yokusabalalisa idatha ye-RAID 2.0+, ukuhlukaniswa kwedatha "ebandayo" kanye "nokushisa", ukuqoshwa kwedatha okulandelanayo kwemigqa yonke (amarekhodi angahleliwe, anedatha entsha neshintshiwe, ahlanganiswe abe yi- isitaki esikhulu futhi esibhalwe ngokulandelana, okwandisa isivinini sokufunda-bhala).
Phakathi kwezinye izinto, i-FlashLink ihlanganisa izingxenye ezimbili ezibalulekile - I-Wear Leveling kanye ne-Global Garbage Collection. Kufanelekile ukuhlala kuzo ngokwehlukana.
Eqinisweni, noma iyiphi idrayivu ye-solid-state iyisistimu yokugcina endaweni encane, enenani elikhulu lamabhulokhi kanye nesilawuli esiqinisekisa ukutholakala kwedatha. Futhi kuqinisekiswa, phakathi kwezinye izinto, yiqiniso lokuthi idatha evela kumaseli "abulewe" idluliselwa kumaseli "angabulawa". Lokhu kuqinisekisa ukuthi zingafundwa. Kunama-algorithms ahlukahlukene wokudlulisa okunjalo. Ngokuvamile, isilawuli sizama ukulinganisa ukuguga kwawo wonke amaseli okugcina. Kunobubi kule ndlela. Lapho idatha ihamba ngaphakathi kwe-SSD, inani lemisebenzi ye-I/O eyenzayo liyancipha kakhulu. Okwamanje kuwububi obudingekayo.
Ngakho-ke, uma uhlelo lunamadrayivu amaningi e-solid-state, igrafu yayo yokusebenza izobonisa iphethini "ye-saw-tooth", enokwenyuka nokwehla okubukhali. Inkinga ukuthi noma iyiphi idrayivu eyodwa ukusuka echibini ingaqala ukuthuthwa kwedatha noma kunini, futhi ukusebenza kukonke kususwa ngesikhathi esisodwa kuwo wonke ama-SSD kuhlu. Kepha onjiniyela bakwaHuawei bathole ukuthi bangagwema kanjani "isaha".
Ngenhlanhla, abalawuli kumadrayivu, isilawuli sesitoreji, kanye ne-microcode ngezakwaHuawei; lezi zinqubo ku-OceanStor Dorado 18000 V6 zethulwa phakathi nendawo, ngokuvumelanisa kuwo wonke amadrayivu ohlwini. Ngaphezu kwalokho, ngomyalo wesilawuli sesitoreji futhi ngokuqondile lapho kungekho mthwalo osindayo we-I/O.
I-chip yobuhlakani bokwenziwa nayo ihilelekile ekukhetheni isikhathi esifanele sokudlulisa idatha: ngokusekelwe ezibalweni zezicelo zezinyanga ezimbalwa ezedlule, iyakwazi ukubikezela ngamathuba aphezulu kakhulu wokulindela i-I/O esebenzayo esikhathini esizayo esiseduze, futhi uma impendulo ingalungile, futhi umthwalo ohlelweni okwamanje mncane, khona-ke isilawuli siyala wonke amadrayivu: labo abadinga i-Wear Leveling kufanele bayenze kanye kanye nangokuvumelanisa.
Ngaphezu kwalokho, isilawuli sesistimu sibona okwenzekayo kuseli ngalinye lesitoreji, ngokungafani nezinhlelo zokugcina ezivela kubakhiqizi abaqhudelanayo: baphoqeleka ukuthi bathenge imidiya yesimo esiqinile kubathengisi bezinkampani zangaphandle, yingakho imininingwane yezinga leselula ingatholakali kubalawuli. yezindawo zokugcina ezinjalo.
Ngenxa yalokho, i-OceanStor Dorado 18000 V6 inesikhathi esifushane kakhulu sokulahleka kokusebenza ngesikhathi sokusebenza kwe-Wear Leveling, futhi yenziwa ikakhulukazi uma ingaphazamisi ezinye izinqubo. Lokhu kunikeza ukusebenza okuphezulu, okuzinzile ngokuqhubekayo.
Yini eyenza i-OceanStor Dorado 18000 V6 ithembeke?
Izinhlelo zesimanje zokugcina idatha zinamazinga amane okuthembeka:
- i-hardware, ezingeni lokushayela;
- ezokwakha, ezingeni lemishini;
- izakhiwo kanye nengxenye yesofthiwe;
- okuhlanganisiwe, okuhlobene nesinqumo sisonke.
Njengoba, ake sikukhumbuze, inkampani yethu iklama futhi ikhiqize zonke izingxenye zesistimu yesitoreji ngokwayo, siqinisekisa ukwethembeka kuzinga ngalinye kwamane, nekhono lokuqapha ngokucophelela ukuthi kwenzekani kunoma iyiphi yazo okwamanje.
Ukuthembeka kwamadrayivu kuqinisekiswa ngokuyinhloko i-Wear Leveling echazwe ngaphambilini kanye neGlobal Garbage Collection. Uma i-SSD ibukeka njengebhokisi elimnyama ohlelweni, ayazi ukuthi amaseli akuyo aguga kanjani. Okwe-OceanStor Dorado 18000 V6, amadrayivu asobala, avumela ukulinganisa okufanayo kuwo wonke amadrayivu kuhlelo. Ngale ndlela, kungenzeka ukwandisa kakhulu impilo yama-SSD futhi uqinisekise izinga eliphezulu lokuthembeka kokusebenza kwawo.
Ukuthembeka kwedrayivu kuphinde kuthinteke ngamaseli engeziwe angasebenzi kuwo. Futhi kanye ne-reserve elula, uhlelo lwesitoreji lisebenzisa okuthiwa amaseli e-DIF, aqukethe ama-checksums, kanye namakhodi engeziwe okwenza kube nokwenzeka ukuvikela ibhulokhi ngayinye iphutha elilodwa, ngaphezu kokuvikela ezingeni le-RAID lamalungu.
Isihluthulelo sokuthembeka kwezakhiwo yisisombululo se-SmartMatrix. Kafushane, lezi izilawuli ezine ezihlala kundiza engemuva engenzi lutho njengengxenye yenjini eyodwa. Izinjini ezimbili ezinjalo - ngokulandelana, nezilawuli eziyisishiyagalombili - zixhunywe emashalofini avamile anamadrayivu. Sibonga i-SmartMatrix, noma ngabe izilawuli eziyisikhombisa kweziyisishiyagalombili ziyeka ukusebenza, ukufinyelela kuyo yonke idatha, kokubili ukufunda nokubhala, kuzosala. Futhi uma kulahleka izilawuli eziyisithupha kweziyisishiyagalombili, kuzokwazi ukuqhubeka nokusebenza kwesikhashana.
Amabhodi e-I/O kundiza yangemuva efanayo yokwenziwa ayatholakala kubo bonke abalawuli, kokubili ekupheleni nangemuva. Ngalolu hlelo lokuxhuma olunemeshi egcwele, noma ngabe yini engahambi kahle, ukufinyelela kumadrayivu kuhlala kugcinwa.
Kufanelekile kakhulu ukukhuluma ngokuthembeka kwesakhiwo kumongo wezimo zokuhluleka, lapho uhlelo lokugcina idatha lukwazi ukunikeza ukuvikelwa.
Isitoreji sizosinda esimweni ngaphandle kokulahlekelwa uma abalawuli ababili "bewa", kufaka phakathi ngesikhathi esifanayo. Ukuzinza okunjalo kufinyelelwa ngenxa yokuthi noma iyiphi i-cache block ngokuqinisekile inamakhophi amabili ngaphezulu kwabalawuli abahlukene, okungukuthi, inani likhona kumakhophi amathathu. Ngaphezu kwalokho, okungenani eyodwa isenjinini ehlukile. Ngakho-ke, ngisho noma injini iyeka ukusebenza - nazo zonke izilawuli zayo ezine - ukugcinwa kwalo lonke ulwazi olwalusenqolobaneni kuqinisekisiwe, ngoba okungenani isilawuli esisodwa senjini esele inqolobane izophinda iphindwe. Ekugcineni, ngoxhumano lwe-daisy-chain, ungalahlekelwa izilawuli ezifika kweziyisikhombisa, futhi noma zikhishwa ngamabhulokhi amabili, futhi futhi yonke i-I/O nayo yonke idatha evela kumemori yenqolobane izogcinwa.
Uma kuqhathaniswa nesitoreji esiphezulu esivela kwabanye abakhiqizi, kuyacaca ukuthi yi-Huawei kuphela ehlinzeka ngokuvikeleka kwedatha okuphelele nokutholakala okuphelele ngisho nangemva kokushona kwezilawuli ezimbili noma injini yonke. Abathengisi abaningi basebenzisa uhlelo olunalokho okubizwa ngamapheya okulawula lapho amadrayivu axhunywe khona. Ngeshwa, kulokhu kucushwa, uma abalawuli ababili behluleka, kunengozi yokulahlekelwa ukufinyelela kwe-I/O kudrayivu.
Maye, ukwehluleka kwengxenye eyodwa angeke kukhishwe ngokuyikho. Kulokhu, ukusebenza kuzokwehla isikhathi esithile: kuyadingeka ukuthi izindlela zakhiwe kabusha futhi ukufinyelela kwemisebenzi ye-I/O kuqalwe kabusha mayelana nalawo mabhulokhi abeze ukuzobhalwa, kodwa angakabhalwa, noma aseceliwe ukufunda. I-OceanStor Dorado 18000 V6 inesilinganiso sesikhathi sokushintsha umzila cishe cishe umzuzwana owodwa - ngaphansi kakhulu kune-analogue eseduze kakhulu embonini (imizuzwana emi-4). Lokhu kufinyelelwa ngenxa ye-backplay efanayo yokwenziwa: lapho isilawuli sehluleka, abanye babona ngokushesha okokufaka kwaso, futhi ikakhulukazi ukuthi iyiphi i-data block ayizange irekhodwe; Ngenxa yalokho, isilawuli esiseduze sithatha inqubo. Ngakho-ke ikhono lokubuyisela ukukhiqiza ngokoqobo ngomzuzwana. Kufanele kwengezwe ukuthi isikhawu sizinzile: eyesibili yesilawuli esisodwa, eyesibili kwesinye, njll.
Kundiza yangemuva ye-OceanStor Dorado 18000 V6, wonke amabhodi afinyeleleka kubo bonke abalawuli ngaphandle kokukhuluma okwengeziwe. Lokhu kusho ukuthi noma yisiphi isilawuli siyakwazi ukucosha i-I/O kunoma iyiphi imbobo. Noma ngabe iyiphi imbobo engaphambili i-I/O eza kuyo, isilawuli sizobe silungele ukuyicubungula. Lokhu kubangela inani elincane lokudluliswa kwangaphakathi kanye nokwenza lula okubonakalayo kokulinganisa.
Ukulinganisa kwe-frontend kwenziwa kusetshenziswa umshayeli we-multipathing, futhi ngaphezu kwalokho ukulinganisa kwenziwa ngaphakathi kwesistimu ngokwayo, njengoba zonke izilawuli zibona zonke izimbobo ze-I/O.
Ngokwesiko, wonke ama-array e-Huawei aklanywe ngendlela yokuthi angabi nephuzu elilodwa lokwehluleka. Zonke izingxenye zingashintshwa ngokushisa ngaphandle kokuqalisa kabusha uhlelo: izilawuli, amamojula wamandla, amamojula okupholisa, amabhodi e-I/O, njll.
Ubuchwepheshe obufana ne-RAID-TP buphinde bukhuphule ukuthembeka kohlelo lonkana. Leli igama leqembu le-RAID, elikuvumela ukuthi uzivikele wena uma kwenzeka ukwehluleka ngasikhathi sinye kokufika kwamadrayivu amathathu. Ngaphezu kwalokho Ukwakhiwa kabusha kwe-TB engu-1 kuthatha isikhathi esingaphansi kwemizuzu engama-30. Umphumela orekhodiwe ongcono kakhulu ushesha ngokuphindwe kasishiyagalombili kunenani elifanayo ledatha ku-spindle drive. Ngakho-ke, kungenzeka ukusebenzisa amadrayivu anamandla kakhulu, yithi i-7,68 noma i-15 TB, futhi ungakhathazeki ngokuthembeka kwesistimu.
Kubalulekile ukuthi ukwakhiwa kabusha kungenziwa ku-spare drive, kodwa endaweni yokuphumula - umthamo wokulondoloza. Idrayivu ngayinye inesikhala esinikelwe esisetshenziselwa ukubuyisela idatha ngemva kokwehluleka. Ngakho-ke, ukubuyisela akwenziwa ngokohlelo "oluningi kuya koyedwa", kodwa ngohlelo "oluningi kuya kwabaningi", ngenxa yokuthi kungenzeka ukusheshisa kakhulu inqubo. Futhi inqobo nje uma kukhona umthamo wamahhala, ukubuyisela kungaqhubeka.
Ngokwehlukana, kufanelekile ukusho ukwethembeka kwesixazululo kusuka kusitoreji esiningi - kuqoqo le-metro, noma, ku-teminology ye-Huawei, i-HyperMetro. Izikimu ezinjalo zisekelwa kulo lonke uhla lwamasistimu ethu okugcina idatha futhi zivumela umsebenzi ngakho kokubili ifayela nokuvinjwa ukufinyelela. Ngaphezu kwalokho, ngesisekelo se-block isebenza kokubili nge-Fiber Channel ne-Ethernet (kuhlanganise ne-iSCSI).
Empeleni, sikhuluma ngokuphindaphinda kwe-bidirectional kusuka ohlelweni olulodwa lwesitoreji kuya kolunye, lapho i-LUN ephindiwe inikezwa i-LUN-ID efanayo neyinhloko. Ubuchwepheshe busebenza ngokuyinhloko ngenxa yokuvumelana kwama-caches avela kumasistimu amabili ahlukene. Ngakho, akwenzi mehluko nhlobo kumsingathi ikuluphi uhlangothi: kokubili lapha nalaphaya ibona idrayivu efanayo enengqondo. Njengomphumela, akukho okukuvimbela ukuthi ukhiphe iqoqo le-failover elisabalala kumasayithi amabili.
Kwikhoramu, kusetshenziswa umshini we-Linux obonakalayo noma obonakalayo. Ingase ibekwe endaweni yesithathu, futhi izidingo zezinsiza zayo zincane. Isimo esijwayelekile ukuqasha isayithi elibonakalayo kuphela ukusingatha ikhoramu ye-VM.
Ubuchwepheshe buphinde buvumele ukunwetshwa: izinsiza ezimbili zokugcina kuqoqo le-metro, isayithi eyengeziwe ene-asynchronous replication.
Ngokomlando, amakhasimende amaningi akhe "i-zoo yokugcina": inqwaba yezinhlelo zokugcina ezivela kubakhiqizi abahlukene, amamodeli ahlukene, izizukulwane ezahlukene, ngokusebenza okuhlukene. Ngasikhathi sinye, inani labasingathi lingamangalisa, futhi livame ukwenziwa nge-virtual. Ezimweni ezinjalo, omunye wemisebenzi ebalulekile yokuphatha ukuhlinzeka ngokushesha, ngokulinganayo nangokufanele amadiski anengqondo kubasingathi, okungcono ngaphandle kokuhlolisisa lapho lawa madiski atholakala khona ngokoqobo. Yilokhu okuklanyelwe isixazululo sesofthiwe yethu i-OceanStor DJ, engaphatha ngobunye amasistimu okugcinwa kwedatha ahlukahlukene futhi inikeze ngamasevisi asuka kuwo ngaphandle kokuboshelwa kumodeli ethile yokulondoloza.
Ngokufanayo ne-AI
Njengoba sekushiwo, i-OceanStor Dorado 18000 V6 inamaphrosesa akhelwe ngaphakathi anama-algorithms obuhlakani bokwenziwa - Ascend. Zisetshenziswa, okokuqala, ukubikezela ukwehluleka, futhi okwesibili, ukukhiqiza izincomo zokucushwa, okwandisa nokusebenza nokuthembeka kwesitoreji.
Umkhathi wokubikezela yizinyanga ezimbili: injini ye-AI ithatha lokho okungenzeka kwenzeke phakathi nalesi sikhathi, kungakhathaliseki ukuthi kuyisikhathi sokwandisa, ukushintsha izinqubomgomo zokufinyelela, njll. Izincomo zikhishwa kusengaphambili, okukuvumela ukuthi uhlele amawindi ukulungiswa kwesistimu ngaphambi kwesikhathi.
Isigaba esilandelayo ekuthuthukisweni kwe-AI kusuka kuHuawei sibandakanya ukuyisa ezingeni lomhlaba jikelele. Ngesikhathi sokulungiswa kwesevisi—ukwehluleka ukuphatha noma izincomo—u-Huawei uhlanganisa ulwazi oluvela kumasistimu wokugawula avela kuzo zonke izindawo zokugcina zamakhasimende ethu. Ngokusekelwe kulokho okuqoqiwe, ukuhlaziya okwenzeka noma okungenzeka kube ukwehluleka kwenziwa futhi kwenziwa izincomo zomhlaba wonke - ngokusekelwe ekusebenzeni kwesistimu eyodwa yesitoreji noma ngisho neshumi nambili, kodwa kulokho okwenzekayo futhi okwenzeke ezinkulungwaneni zamadivayisi anjalo. . Isampula sikhulu, futhi ngokusekelwe kuso, ama-algorithms e-AI aqala ukufunda ngokushesha okukhulu, yingakho ukunemba kwezibikezelo kukhula kakhulu.
Ukuhambisana
Ngo-2019-2020, bekunemibono eminingi mayelana nokusebenzisana kwemishini yethu nemikhiqizo ye-VMware. Ukuze ekugcineni sibamise, simemezela ngokuzibophezela: I-VMware inguzakwethu we-Huawei. Lonke uvivinyo olucatshangwayo lwenziwa ukuze kutholwe ukuhambisana kwehadiwe yethu nesofthiwe yayo, futhi ngenxa yalokho, kuwebhusayithi ye-VMware, ishidi le-Hardware elihambisanayo libala izinhlelo zokugcina ezikhona njengamanje zokukhiqiza kwethu ngaphandle kokubhukha. Ngamanye amazwi, ngendawo yesofthiwe ye-VMware ungasebenzisa isitoreji se-Huawei, kuhlanganise ne-Dorado V6, ngokusekelwa okugcwele.
Okufanayo kusebenza ngokubambisana kwethu ne-Brocade. Siyaqhubeka nokuhlanganyela futhi sihlola ukuhambisana kwemikhiqizo yethu - futhi ngokusekelwe emiphumeleni yayo, singagomela ngokuzethemba ukuthi amasistimu ethu okugcina ahambisana ngokugcwele namaswishi e-Brocade FC akamuva.
Yini okulandelayo?
Siyaqhubeka nokuthuthukisa nokuthuthukisa amaphrosesa ethu: ayashesha, athembeke kakhulu, futhi nokusebenza kwawo kuyanda. Futhi sithuthukisa ama-AI chips - amamojula akhiqizwa ngokwesisekelo sawo asheshisa ukuphindaphinda nokucindezelwa. Labo abakwazi ukufinyelela ku-configurator yethu kungenzeka baqaphele ukuthi kumamodeli e-Dorado V6 lawa makhadi aseyatholakala ukuze a-odwe.
Futhi siqhubekela ekulondolozeni inqolobane eyengeziwe Kumemori Yekilasi Lesitoreji - inkumbulo engaguquguquki ene-latency ephansi ikakhulukazi, cishe amasekhondi amancane ayishumi ngokufundwa ngakunye. Phakathi kwezinye izinto, i-SCM ihlinzeka ngokuthuthukisa ukusebenza, ikakhulukazi lapho isebenza ngedatha enkulu futhi ixazulula izinkinga ze-OLTP. Ngemva kwesibuyekezo esilandelayo, amakhadi e-SCM kufanele atholakalele i-oda.
Futhi-ke, ukusebenza kokufinyelela kwefayela kuzonwetshwa kulo lonke uhla lwamamodeli okugcinwa kwedatha ye-Huawei - hlala ubukele izibuyekezo zethu.
Source: www.habr.com