Huawei Dorado V6: Zafin Sichuan

Summer a Moscow a wannan shekara ya kasance, don gaskiya, ba shi da kyau sosai. Ya fara da wuri da sauri, ba kowa ba ne ya sami lokaci don amsawa, kuma ya ƙare a ƙarshen Yuni. Saboda haka, lokacin da Huawei ya gayyace ni zuwa kasar Sin, zuwa birnin Chengdu, inda cibiyarsu ta RnD take, bayan na duba hasashen yanayin da ke cikin inuwar +34, nan da nan na amince. Bayan haka, ba ni da shekaru ɗaya kuma ina buƙatar dumama ƙasusuwana kaɗan. Amma ina so in lura cewa, mai yiyuwa ne a dumi ba kawai kasusuwa ba, har ma da ciki, domin lardin Sichuan, wanda a hakikanin gaskiya Chengdu yake, ya shahara da son abinci mai yaji. Amma har yanzu, wannan ba bulogi ba ne game da tafiya, don haka bari mu koma ga babban burin tafiyarmu - sabon layin tsarin ajiya - Huawei Dorado V6. Wannan labarin zai ɗan girgiza ku daga baya, saboda ... an rubuta shi kafin sanarwar hukuma, amma an buga shi kawai bayan sakin. Don haka, a yau za mu yi nazari sosai kan duk wani abu mai ban sha'awa da daɗi wanda Huawei ya shirya mana.

Za a sami samfura 5 a cikin sabon layin. Duk samfuran ban da 3000V6 ana iya samun su cikin nau'ikan biyu - SAS da NVMe. Zaɓin yana ƙayyade ƙirar faifan diski waɗanda za ku iya amfani da su a cikin wannan tsarin, tashar jiragen ruwa na Back-End da adadin faifan diski waɗanda za ku iya sanyawa a cikin tsarin. Don NVMe, ana amfani da SSDs masu girman dabino, waɗanda sun fi na 2.5 inch SAS SSDs na yau da kullun kuma ana iya shigar dasu cikin guda 36. Sabon layin shine All Flash kuma babu wani saiti tare da fayafai.

Palm NVMe SSD

A ra'ayi na, Dorado 8000 da 18000 suna kama da samfurori mafi ban sha'awa. Huawei ya sanya su a matsayin Tsarin Ƙarshen Ƙarshe, kuma, godiya ga tsarin farashin Huawei, ya bambanta waɗannan Tsakanin Tsari tare da ɓangaren masu gasa. Waɗannan samfuran ne zan mayar da hankali a kansu a cikin bita na yau. Zan lura nan da nan cewa saboda fasalulluka na ƙirar su, ƙananan tsarin sarrafawa biyu suna da tsarin gine-gine daban-daban, daban-daban daga Dorado 8000 da 18000, don haka ba duk abin da zan yi magana game da shi ba a yau ya dace da ƙananan ƙirar.

Ɗaya daga cikin manyan fasalulluka na sababbin tsarin shine amfani da kwakwalwan kwamfuta da dama, waɗanda aka haɓaka a cikin gida, kowannensu yana ba ka damar rarraba nauyin ma'ana daga na'ura mai sarrafawa ta tsakiya da kuma ƙara ayyuka zuwa sassa daban-daban.

Zuciyar sabbin tsarin shine Kunpeng 920 na'urori masu sarrafawa, waɗanda aka haɓaka akan fasahar ARM kuma Huawei ya kera shi da kansa. Dangane da samfurin, adadin muryoyi, mitar su da adadin na'urori masu sarrafawa a cikin kowane mai sarrafawa sun bambanta:
Huawei Dorado V6 8000 - 2CPU, 64 core
Huawei Dorado V6 18000 - 4CPU, 48 core

Huawei ya kirkiro wannan masarrafa akan tsarin gine-ginen ARM, kuma kamar yadda na sani, da farko ya shirya shigar da shi a cikin tsofaffin nau'ikan Dorado 8000 da 18000, kamar yadda ya riga ya kasance tare da wasu nau'ikan V5, amma takunkumi ya yi gyare-gyare ga wannan ra'ayin. Tabbas, ARM ta kuma yi magana game da ƙin ba da haɗin kai da Huawei yayin sanya takunkumi, amma a nan lamarin ya bambanta da na Intel. Huawei yana samar da waɗannan kwakwalwan kwamfuta da kansa, kuma babu wani takunkumi da zai iya dakatar da wannan tsari. Yanke dangantaka tare da ARM kawai yana barazanar asarar damar samun sabbin ci gaba. Amma game da aiki, zai yiwu a yi hukunci kawai bayan gudanar da gwaje-gwaje masu zaman kansu. Ko da yake na ga yadda aka cire 18000M IOPS daga tsarin Dorado 1 ba tare da wata matsala ba, har sai na sake maimaita shi da hannuna a cikin kulluna, ba zan yarda da shi ba. Amma da gaske akwai iko da yawa a cikin masu sarrafawa. Tsofaffin samfuran suna sanye da na'urori masu sarrafawa guda 4, kowannensu yana da na'urori 4, wanda ke ba da jimillar nau'ikan 768.

Amma zan yi magana game da mahimmanci ko da daga baya, idan muka dubi tsarin gine-gine na sababbin tsarin, amma a yanzu bari mu koma wani guntu da aka shigar a cikin tsarin. Guntu yana kama da bayani mai ban sha'awa sosai Hawan hawa 310 (Kamar yadda na fahimta, kanin hawan hawan 910, wanda aka gabatar kwanan nan ga jama'a). Ayyukansa shine nazarin tubalan bayanai masu shiga tsarin don haɓaka rabon Read hit. Yana da wuya a faɗi yadda za a yi a wurin aiki, saboda ... A yau yana aiki ne kawai bisa ga samfurin da aka bayar kuma ba shi da ikon koyo a cikin yanayin hankali. An yi alkawarin bayyanar yanayin fasaha a cikin firmware na gaba, mai yiwuwa a farkon shekara mai zuwa.

Mu ci gaba zuwa gine-gine. Huawei ya ci gaba da haɓaka fasaharsa ta Smart Matrix, wacce ke aiwatar da cikakkiyar hanyar haɗar abubuwan haɗin gwiwa. Amma idan a cikin V5 wannan kawai don samun dama daga masu sarrafawa zuwa faifai, yanzu duk masu sarrafawa suna da damar zuwa duk tashar jiragen ruwa akan duka Back-End da Front-End.

Godiya ga sabon tsarin gine-ginen microservice, wannan kuma yana ba da damar daidaita nauyi tsakanin duk masu sarrafawa, koda kuwa wata ɗaya ce kawai. OS na wannan layin tsararraki an ƙirƙira shi ne tun daga ƙasa zuwa sama, kuma ba kawai an inganta shi don amfani da filasha ba. Saboda gaskiyar cewa duk masu kula da mu suna samun damar zuwa tashar jiragen ruwa guda ɗaya, idan mai sarrafawa ya gaza ko sake kunnawa, mai watsa shiri ba ya rasa hanya ɗaya zuwa tsarin ajiya, kuma ana aiwatar da sauyawar hanyar a matakin tsarin ajiya. Koyaya, yin amfani da UltraPath akan mai watsa shiri ba lallai ba ne. Wani "ajiye" lokacin shigar da tsarin shine ƙananan adadin hanyoyin haɗin da ake bukata. Kuma idan tare da tsarin "classical" don masu kula da 4 za mu buƙaci hanyoyin haɗin gwiwar 8 daga masana'antu 2, to, a cikin yanayin Huawei ko da 2 zai isa (Ba na magana yanzu game da isar da kayan aikin haɗin gwiwa ɗaya).

Kamar yadda yake a cikin sigar baya, ana amfani da cache na duniya tare da madubi. Wannan yana ba ku damar rasa har zuwa masu sarrafawa guda biyu a lokaci guda ko masu sarrafawa uku a jere ba tare da shafar samuwa ba. Amma yana da mahimmanci a lura cewa ba mu ga cikakkiyar ma'auni tsakanin masu sarrafawa na 3 da suka rage ba a yayin da gazawar guda ɗaya ta tsaya a demo. Nauyin mai kula da ya gaza ya karbe gaba daya daga cikin sauran. Yana yiwuwa don wannan ya zama dole don barin tsarin ya yi aiki tsawon lokaci a cikin wannan tsari. A kowane hali, zan bincika wannan dalla-dalla ta amfani da gwaje-gwaje na.
Huawei yana sanya sabbin tsarin azaman tsarin NVMe na Ƙarshe-zuwa-Ƙarshe, amma a yau NVMeOF bai riga ya goyi bayan ƙarshen gaba ba, kawai FC, iSCSI ko NFS. A ƙarshen wannan ko farkon na gaba, kamar sauran fasalulluka, an yi mana alkawarin tallafin RoCE.

Hakanan ana haɗa ɗakunan ajiya zuwa masu sarrafawa ta amfani da RoCE, kuma akwai matsala guda ɗaya da ke da alaƙa da wannan - rashin haɗin “loopback” na shelves, kamar yadda ya faru da SAS. A ganina, wannan har yanzu babban koma baya ne idan kuna shirin babban tsari mai inganci. Gaskiyar ita ce, an haɗa dukkan ɗakunan ajiya a jeri, kuma rashin nasarar ɗayan ɗakunan yana haifar da rashin isa ga duk sauran masu bin sa. A wannan yanayin, don tabbatar da haƙurin kuskure, dole ne mu haɗa dukkan ɗakunan ajiya zuwa masu sarrafawa, wanda ke haifar da haɓaka yawan adadin da ake buƙata na tashoshin baya a cikin tsarin.

Kuma wani abu daya da ya kamata a ambata shine sabuntawa mara lalacewa (NDU). Kamar yadda na fada a sama, Huawei ya aiwatar da tsarin kwantena don aiki da OS don sabon layin Dorado, wannan yana ba ku damar sabuntawa da sake kunna sabis ba tare da buƙatar sake kunna mai sarrafawa gaba ɗaya ba. Yana da kyau a ambata nan da nan cewa wasu sabuntawa za su ƙunshi ɗaukakawar kwaya, kuma a wannan yanayin, ana buƙatar sake kunnawa na masu sarrafawa a wasu lokuta yayin sabuntawa, amma ba koyaushe ba. Wannan zai rage tasirin wannan aiki akan tsarin samarwa.

A cikin arsenal ɗinmu, yawancin tsararru suna daga NetApp. Don haka, ina tsammanin zai zama ma'ana idan na yi ɗan kwatancen tsarin da na yi aiki da yawa. Wannan ba ƙoƙari ba ne don sanin wanda ya fi kyau kuma wane ne mafi muni ko kuma wanda gine-ginen ya fi dacewa. Zan yi ƙoƙarin gwada hankali kuma ba tare da tsattsauran ra'ayi ba kwatanta hanyoyi daban-daban guda biyu don magance matsala ɗaya daga masu siyarwa daban-daban. Ee, ba shakka, a cikin wannan yanayin za mu yi la'akari da tsarin Huawei a cikin "ka'idar" kuma zan kuma lura da waɗannan abubuwan da aka tsara don aiwatarwa a cikin sigogin firmware na gaba. Wadanne fa'idodi na gani a halin yanzu:

1. Adadin masu tafiyar da NVMe masu goyan bayan. A halin yanzu NetApp yana da 288 daga cikinsu, yayin da Huawei ke da 1600-6400, ya danganta da samfurin. A lokaci guda, ƙarfin amfani da Huawei's Max shine 32PBe, kamar tsarin NetApp (don zama daidai, suna da 31.64PBe). Kuma wannan duk da cewa ana tallafawa masu tafiyar da ƙarar guda ɗaya (har zuwa 15Tb). Huawei ya bayyana wannan gaskiyar kamar haka: ba su da damar harhada babban tsayawa. A cikin ka'idar, ba su da iyakacin girma, amma kawai ba su iya gwada wannan gaskiyar ba tukuna. Amma a nan yana da kyau a lura cewa ƙarfin faifan faifai a yau yana da girma sosai, kuma a cikin tsarin NVMe muna fuskantar gaskiyar cewa 24 tukwici sun isa yin amfani da tsarin 2-masu sarrafawa na sama. Sabili da haka, ƙarin haɓakar adadin faifai a cikin tsarin ba kawai zai samar da haɓaka aikin ba, amma kuma zai yi mummunan tasiri akan rabon IOPS/Tb. Tabbas, yana da daraja ganin yawan abubuwan tafiyar da tsarin 4-controller 8000 da 16000 zasu iya ɗauka, saboda ... Ƙarfafawa da yuwuwar Kunpeng 920 har yanzu ba a bayyana gaba ɗaya ba.
2. Kasancewar Lun a matsayin mai tsarin NetApp. Wadancan. Mai sarrafawa ɗaya ne kawai zai iya yin ayyuka tare da wata, yayin da na biyun kawai ya wuce IO ta kanta. Tsarin Huawei, akasin haka, ba su da masu mallaka kuma ayyuka tare da tubalan bayanai (matsi, cirewa) ana iya yin su ta kowane ɗayan masu sarrafawa, da kuma rubuta su zuwa faifai.
3. Babu tashar jiragen ruwa da ke faɗuwa lokacin da ɗaya daga cikin masu sarrafawa ya gaza. Ga wasu, wannan lokacin yana da matukar mahimmanci. Ƙarshen ƙasa shine cewa sauyawa a cikin tsarin ajiya ya kamata ya faru da sauri fiye da a gefen mai watsa shiri. Kuma idan a cikin yanayin NetApp iri ɗaya, a aikace mun sami daskare na kusan daƙiƙa 5 lokacin da zazzage mai sarrafawa da canza hanyoyin, to tare da canzawa zuwa Huawei har yanzu muna yin aiki.
4. Babu buƙatar sake kunna mai sarrafawa lokacin ɗaukakawa. Wannan ya fara damuna musamman game da fitowar sabbin juzu'ai da rassan firmware don NetApps. Ee, wasu sabuntawa don Huawei har yanzu za su buƙaci sake farawa, amma ba duka ba.
5. 4 Huawei masu kula da farashin masu kula da NetApp guda biyu. Kamar yadda na fada a sama, godiya ga manufofin farashi na Huawei, zai iya yin gasa tare da Tsakanin-tsakiyar tare da ƙirarsa mafi girma.
6. Kasancewar ƙarin kwakwalwan kwamfuta a cikin masu sarrafa shiryayye da katunan tashar jiragen ruwa, waɗanda ke da yuwuwar an yi niyya don haɓaka ingantaccen tsarin.

Fursunoni da damuwa gabaɗaya:

1. Haɗin kai tsaye na ɗakunan ajiya zuwa masu sarrafawa ko buƙatar babban adadin tashar jiragen ruwa na baya don haɗa dukkan ɗakunan ajiya zuwa masu sarrafawa.
2. Gine-ginen ARM da kasancewar adadi mai yawa na kwakwalwan kwamfuta - yaya ingantaccen aikin zai yi, kuma aikin zai isa?

Yawancin damuwa da tsoro za a iya kawar da su ta hanyar gwaji na sabon layi. Ina fatan cewa nan da nan bayan an sake su za su bayyana a Moscow kuma za a sami isasshen su don samun sauri don gwajin ku. Ya zuwa yanzu, zamu iya cewa a gaba ɗaya tsarin kamfanin yana da ban sha'awa, kuma sabon layin yana da kyau sosai idan aka kwatanta da masu fafatawa. Aiwatar da ƙarshe ta haifar da tambayoyi da yawa, saboda Za mu ga abubuwa da yawa kawai a ƙarshen shekara, kuma watakila kawai a cikin 2020.

source: www.habr.com