Barka da rana, masoyi mazauna Khabrovsk!
Ina so in ci gaba da labarina game da hada wani "kauye supercomputer". Kuma zan bayyana dalilin da yasa ake kiransa haka-dalilin yana da sauki. Ni kaina ina zaune a wani kauye. Kuma sunan shi ne ɗan zazzagewar waɗanda ke ihu akan Intanet "Babu wata rayuwa da ta wuce Titin Zobe na Moscow!", "Ƙauyen Rasha ya zama mashayi kuma yana mutuwa!" Don haka, a wani wuri wannan na iya zama gaskiya, amma zan zama banda ga ƙa'ida. Ba na sha, ba na shan taba, ina yin abubuwan da ba kowane "buguwar gari" ba zai iya ba. Amma bari mu koma ga tumakinmu, ko kuma daidai, zuwa uwar garken, wanda a ƙarshen sashin farko na labarin ya riga ya “nuna alamun rayuwa.”
Jirgin yana kwance a kan tebur, na hau ta cikin BIOS, na saita shi yadda nake so, na kashe Ubuntu 16.04 Desktop don sauƙi kuma na yanke shawarar haɗa katin bidiyo zuwa "super machine". Amma kawai abin da ke hannun shi ne GTS 250 tare da babban fan wanda ba na asali ba. Wanda na shigar a cikin PCI-E 16x Ramin kusa da maɓallin wuta.
"Na ɗauka tare da fakitin Belomor (c)" don haka don Allah kar ku zarge ni saboda ingancin hoton. Na fi son yin sharhi a kan abin da aka kama a kansu.
Da fari dai, ya bayyana cewa idan an shigar da shi a cikin ramin, ko da ɗan gajeren katin bidiyo yana kan allon allon a kan ramukan ƙwaƙwalwar ajiya, wanda a cikin wannan yanayin ba za a iya shigar da shi ba har ma da latches dole ne a sauke. Abu na biyu, igiyar hawan ƙarfe na katin bidiyo yana rufe maɓallin wuta, don haka dole ne a cire shi. Af, maɓallin wuta da kansa yana haskakawa ta hanyar LED mai launi biyu, wanda ke haskaka kore lokacin da komai ya daidaita kuma yana lumshe orange idan an sami wasu matsaloli, gajeriyar kewayawa da kariyar wutar lantarki ta lalace ko kuma +12VSB ikon wadata ya yi yawa ko kaɗan.
A zahiri, wannan motherboard ba a ƙera shi don haɗa katunan bidiyo “kai tsaye” cikin ramukan PCI-E 16x; duk suna da alaƙa da masu tashi. Don shigar da katin fadada a cikin ramummuka kusa da maɓallin wuta, akwai masu hawan kusurwa, ƙananan don shigar da gajerun katunan har zuwa tsayin radiyo na farko, da kuma babban kusurwa ɗaya tare da ƙarin mai haɗin wutar lantarki + 12V don shigar da katin bidiyo "sama" daidaitaccen mai sanyaya ƙananan 1U. Yana iya haɗawa da manyan katunan bidiyo kamar GTX 780, GTX 980, GTX 1080 ko katunan GPGPU na musamman Nvidia Tesla K10-K20-K40 ko “katunan lissafi” Intel Xeon Phi 5110p da makamantansu.
Amma a cikin GPGPU riser, katin da aka haɗa a cikin EdgeSlot za a iya haɗa shi kai tsaye, kawai ta sake haɗa ƙarin iko tare da mai haɗawa iri ɗaya kamar na babban kusurwa. Ga masu sha'awar, akan eBay wannan m riser ana kiransa "Dell PowerEdge C8220X PCI-E GPGPU DJC89" kuma farashin game da 2.5-3 dubu rubles. Masu hawan kusurwa tare da ƙarin samar da wutar lantarki ba su da yawa kuma dole ne in yi shawarwari don samun su daga kantin sayar da sassan sabar na musamman ta hanyar Whisper. Kudinsu dubu bakwai ne.
Zan ce nan da nan, "masu haɗari (tm)" suna iya haɗa nau'i biyu na GTX 980 zuwa jirgi tare da masu sassaucin ra'ayi na kasar Sin 16x, kamar yadda mutum ɗaya ya yi akan "Wannan Dandalin"; Af, Sinawa suna yin sosai. kyawawan sana'o'in hannu waɗanda ke aiki akan PCI-E 16x 2.0 a cikin salon Thermaltek masu sassaucin ra'ayi, amma idan wannan rana ɗaya ta sa ku ƙone da'irar wutar lantarki akan allon uwar garken, kawai kuna da kanku da laifi. Ban yi haɗari da kayan aiki masu tsada ba kuma na yi amfani da masu tasowa na asali tare da ƙarin iko da ɗaya mai sassaucin Sinanci, yana kwatanta cewa haɗa katin ɗaya "kai tsaye" ba zai ƙone allon ba.
Sannan masu haɗin da aka daɗe ana jira don haɗa ƙarin wutar lantarki sun isa kuma na yi wutsiya don tashi na a EdgeSlot. Kuma mahaɗin guda ɗaya, amma tare da pinout daban-daban, ana amfani da shi don samar da ƙarin wuta ga motherboard. Wannan mai haɗin yana kusa da wannan mai haɗin EdgeSlot guda ɗaya, akwai fitinti mai ban sha'awa a wurin. Idan mai tashi yana da wayoyi 2 +12 da 2 gama gari, to allon yana da wayoyi 3 +12 da 1 gama gari.
Wannan shine ainihin GTS 250 wanda aka haɗa a cikin GPGPU riser. Af, ana ba da ƙarin wutar lantarki ga masu hawan igiyar ruwa da motherboard - daga mai haɗin wutar lantarki + 12V na biyu na CPU na samar da wutar lantarki. Na yanke shawarar cewa zai fi daidai yin wannan.
Labarin tatsuniya yana gaya wa kansa da sauri, amma a hankali fakitin sun isa Rasha daga China da sauran wurare na duniya. Sabili da haka, akwai manyan gibba a cikin taron na "supercomputer". Amma a ƙarshe uwar garken Nvidia Tesla K20M tare da radiyo mai wucewa ya zo wurina. Bugu da ƙari, ba shi da cikakkiyar sifili, daga ajiya, an rufe shi a cikin akwatin sa na asali, a cikin ainihin kunshin sa, tare da takaddun garanti. Kuma wahala ta fara: yadda za a kwantar da shi?
Na farko, an sayi na'urar sanyaya na al'ada tare da ƙananan "turbines" guda biyu daga Ingila, a nan yana cikin hoton, tare da diffuser na gida.
Kuma suka zama cikakken banza. Sun yi hayaniya da yawa, dutsen bai dace da komai ba, sun busa da rauni kuma suna ba da irin wannan rawar da na ji tsoron cewa abubuwan zasu fado daga allon Tesla! Me ya sa aka jefa su cikin sharar nan da nan?
Af, a cikin hoton da ke ƙarƙashin Tesla zaka iya ganin LGA 2011 1U uwar garken tagulla radiators da aka sanya a kan masu sarrafawa tare da katantanwa daga Coolererver da aka saya daga Aliexpress. Masu sanyaya masu kyau sosai, kodayake ɗan hayaniya. Sun dace daidai.
Amma a zahiri, yayin da nake jiran sabon mai sanyaya don Tesla, wannan lokacin na ba da umarnin babban katantanwa na BFB1012EN daga Ostiraliya tare da dutsen buga 3D, ya zo ga tsarin ajiyar uwar garke. Kwamitin uwar garken yana da mai haɗa mini-SAS wanda ta hanyar 4 SATA da ƙarin masu haɗin SATA guda 2 ake fitarwa. Duk SATA misali 2.0 amma wannan ya dace da ni.
Intel C602 RAID da aka haɗa a cikin kwakwalwar kwakwalwar ba ta da kyau kuma babban abu shine ta tsallake umarnin TRIM don SSDs, wanda yawancin masu kula da RAID na waje marasa tsada ba sa yi.
A kan eBay na sayi mini-SAS mai tsayin mitoci zuwa kebul na SATA 4, kuma akan Avito na sayi keken swap mai zafi tare da 5,25 ″ bay don 4 x 2,5 ″ SAS-SATA. Don haka lokacin da kebul da kwandon ya isa, an sanya terabyte Seagates 4 a ciki, RAID5 don na'urori 4 an gina shi a cikin BIOS, na fara shigar da uwar garken Ubuntu… kuma na shiga cikin gaskiyar cewa shirin rarraba diski bai ba ni izini ba don ƙirƙirar ɓangaren musanya akan harin.
Na warware matsalar gaba-gaba - Na sayi ASUS HYPER M.2 x 2 MINI da M.4 SSD Samsung 2 EVO 960 Gb adaftar daga DNS kuma na yanke shawarar cewa ya kamata a keɓe mafi girman na'urar don musanyawa, tunda tsarin zai yi aiki. tare da babban nauyin ƙididdigewa, kuma ƙwaƙwalwar ajiya har yanzu tana ƙasa da girman bayanai. Kuma ƙwaƙwalwar ajiyar 250 GB ta fi wannan SSD tsada.
Wannan adaftar guda ɗaya tare da SSD wanda aka shigar a cikin ƙaramin kusurwa mai tashi.
Yi tsammanin tambayoyin - "Me yasa ba za ku sanya tsarin gaba ɗaya akan M.2 ba kuma ku sami matsakaicin saurin isa ga sama da na hari akan SATA?" - Zan amsa. Da fari dai, 1 TB ko fiye da M2 SSDs sun yi mini tsada. Abu na biyu, ko da bayan sabunta BIOS zuwa sabon sigar 2.8.1, uwar garken har yanzu baya goyan bayan loda na'urorin M.2 NVE. Na yi gwaji inda tsarin ya saita / takalma zuwa USB FLASH 64 Gb da duk abin da ke zuwa M.2 SSD, amma ban so shi ba. Kodayake, bisa ka'ida, irin wannan haɗin yana da sauƙin aiki. Idan M.2 NVE mai girma ya zama mai rahusa, zan iya komawa zuwa wannan zaɓi, amma a yanzu SATA RAID a matsayin tsarin ajiya ya dace da ni sosai.
Lokacin da na yanke shawara akan tsarin faifai kuma na zo tare da haɗin 2 x SSD Kingston 240 Gb RAID1 “/” + 4 x HDD Seagate 1 Tb RAID5 “/ gida” + M.2 SSD Samsung 960 EVO 250 Gb “swap” yana da lokaci don ci gaba da gwaje-gwaje na tare da GPU Na riga na sami Tesla da mai sanyaya Ostiraliya kawai sun iso tare da katantanwa na "mugunta" wanda ke ci kamar 2.94A a 12V, M.2 na biyu ya mamaye shi kuma na uku na aro GT 610 "don gwaje-gwaje."
Anan a cikin hoton an haɗa dukkan na'urori 3, kuma M.2 SSD yana ta hanyar haɓakar Thermaltech mai sauƙi don katunan bidiyo da ke aiki akan bas ɗin 3.0 ba tare da kurakurai ba. Yana da irin wannan, wanda aka yi daga yawancin "ribbons" daidai da waɗanda aka yi wa igiyoyin SATA. Masu hawan PCI-E 16x da aka yi daga kebul mai lebur guda ɗaya, irin na tsohuwar IDE-SCSI, bala'i ne, za su sha wahala daga kurakurai saboda tsangwama tsakanin juna. Kuma kamar yadda na fada a baya, Sinawa yanzu ma suna yin masu tashi kamar na Thermaltek, amma gajarta.
A hade tare da Tesla K20 + GT 610, na gwada abubuwa da yawa, a lokaci guda na gano cewa lokacin da ake haɗa katin bidiyo na waje da canza fitarwa zuwa gare shi a cikin BIOS, vKVM ba ya aiki, wanda bai yi da gaske ba. ya bata min rai. Duk da haka dai, ban yi shirin yin amfani da bidiyo na waje akan wannan tsarin ba, babu fitowar bidiyo akan Teslas, kuma kwamitin gudanarwa na nesa ta hanyar SSH kuma ba tare da X-owls yana aiki mai girma da zarar kun tuna kadan abin da layin umarni ba tare da GUI ba. . Amma IPMI + vKVM yana sauƙaƙa gudanarwa, sake shigarwa da sauran batutuwa tare da sabar nesa.
Gabaɗaya, IPMI ɗin wannan hukumar yana da kyau. Tashar tashar jiragen ruwa ta 100 Mbit daban, ikon sake saita allurar fakiti zuwa ɗaya daga cikin tashoshin jiragen ruwa na 10 Gbit, sabar gidan yanar gizo da aka gina don sarrafa wutar lantarki da sarrafa sabar, zazzage abokin ciniki na vKVM Java kai tsaye daga gare ta da abokin ciniki don hawan diski mai nisa. ko hotuna don sake kunnawa ... Abinda kawai shine abokan ciniki iri ɗaya ne da tsohuwar Java Oracle, wanda ba a tallafawa a cikin Linux kuma ga rukunin gudanarwa na nesa dole ne in sami kwamfutar tafi-da-gidanka tare da Win XP SP3 tare da wannan sosai. tsoho Toad. Da kyau, abokin ciniki yana jinkirin, akwai isa ga kwamitin gudanarwa da duk wannan, amma ba za ku iya yin wasanni da nisa ba, FPS ƙananan ne. Kuma bidiyon ASPEED wanda aka haɗa tare da IPMI yana da rauni, VGA kawai.
A cikin tsarin mu'amala da uwar garken, na koyi abubuwa da yawa kuma na koyi abubuwa da yawa a fagen ƙwararrun kayan aikin uwar garken daga Dell. Wanda ba na nadama ko kadan, da kuma lokaci da kudi da aka kashe da kyau. Za a ci gaba da labarin ilimantarwa game da haɗa firam ɗin tare da duk abubuwan haɗin uwar garken daga baya.
Link zuwa part 3:
source: www.habr.com