Mtundu watsopano wosungirako wa SSD udzachepetsa kugwiritsa ntchito mphamvu mu data center - momwe zimagwirira ntchito

Dongosololi lidzachepetsa mtengo wamagetsi ndi theka.

/ chithunzi Andy Melton CC BY-SA

N'chifukwa chiyani timafunikira zomangamanga zatsopano?

Malinga ndi kuyerekezera kwa Data Center DynamicsPofika 2030, zida zamagetsi zidzadya 40% ya mphamvu zonse zomwe zimapangidwa padziko lapansi. Pafupifupi 20% ya voliyumu iyi idzachokera ku gawo la IT ndi malo opangira deta. Wolemba zoperekedwa Malinga ndi akatswiri a ku Ulaya, malo opangira deta "amachotsa" 1,4% ya magetsi onse. Zikuyembekezeka kuti izi chiwerengerochi chikwera kufika pa 5% pofika 2020.

Kusungirako kwa SSD kumawononga gawo lalikulu la magetsi. Munthawi ya 2012 mpaka 2017, gawo la ma drive olimba m'malo a data. 8 mpaka 22%. Ngakhale ma SSD amawononga mphamvu yachitatu (PDF, tsamba 13) kuposa HDD, ndalama zamagetsi zimakhalabe zazikulu pamlingo wa data center.

Kuti muchepetse kugwiritsa ntchito mphamvu zamagalimoto olimba m'malo opangira data, mainjiniya ochokera ku MIT apanga kamangidwe katsopano ka SSD. Imatchedwa LightStore ndipo imakupatsani mwayi wolumikiza ma drive molunjika ku netiweki ya data, kudutsa maseva osungira. Wolemba malinga ndi olemba, dongosololi lidzachepetsa ndalama zamagetsi ndi theka.

Kodi ntchito

LightStore ndi sitolo yamtengo wapatali ya flash yomwe imapanga mapu omwe amapempha kuti aziyendetsa ngati makiyi. Kenako amatumizidwa ku seva, yomwe imatulutsa deta yokhudzana ndi kiyiyo.

dongosolo lili ndi purosesa yopangira mphamvu, DRAM ndi kukumbukira kwa NAND. Imayendetsedwa ndi wolamulira ndi mapulogalamu apadera. Woyang'anira ali ndi udindo wogwira ntchito ndi magulu a NAND, ndipo pulogalamuyo ili ndi udindo wokonza zopempha za KV ndikusunga makiyi awiriawiri. Zomangamanga zamapulogalamu zimamangidwa pamaziko Mtengo wa LSM, yomwe imagwiritsidwa ntchito m'ma DBMS ambiri amakono.

Chithunzi cha zomangamanga chikhoza kuimiridwa motere:

Chithunzichi chikuwonetsa zigawo zikuluzikulu za LightStore. Gulu la node limagwira ntchito pamagulu awiri amtengo wapatali. Ma seva ogwiritsira ntchito amalumikizidwa ndi dongosolo pogwiritsa ntchito ma adapter. Amasintha zopempha zamakasitomala (monga fread() kuchokera ku POSIX API) kukhala zopempha za KV. Zomangamangazi zilinso ndi ma adapter osiyana Mtengo wa YCSB, block (kutengera gawo la BUSE) ndi zosungira mafayilo.

Pogawira zopempha, adaputala amagwiritsa ntchito hashing yokhazikika. Amagwiritsidwa ntchito pamakina ngati Redis kapena Swift. Pogwiritsa ntchito kiyi yopempha ya KV, adaputalayo imapanga kiyi ya hashi yomwe mtengo wake umazindikiritsa malo omwe mukufuna.

Kuchuluka kwa magulu a LightStore mamba motsatana - ingolumikiza ma node owonjezera pa netiweki. Nthawi zina, mungafunike kugula masiwichi atsopano. Komabe, omangawa adakonzekeretsa node iliyonse ndi mipata yowonjezera yolumikizira tchipisi ta NAND.

Kuthekera kwa zomangamanga

Akatswiri a MIT akuti yankho lochokera ku LightStore lili ndi 620 Mbps kuposa 10 Gigabit Ethernet. Node imodzi imadya 10 W m'malo mwa 20 W wamba (m'makina a SSD omwe amagwiritsidwa ntchito ndi ma data masiku ano). Kuphatikiza apo, zida zimatenga theka la danga.

Tsopano opanga akumaliza mbali zina. Mwachitsanzo, LightStore sichitha kugwira ntchito ndi mafunso osiyanasiyana ndi mafunso ang'onoang'ono. Izi zidzawonjezedwa mtsogolo, popeza LightStore imagwiritsa ntchito mitengo ya LSM. Komanso, makinawa akadali ndi ma adapter ochepa - YCSB ndi ma adapter block amathandizidwa. M'tsogolomu, LightStore idzatha kuyankha mafunso a SQL, ndi zina zotero.

Zochitika zina

M'chilimwe cha 2018, Marvell, kampani yopanga zosungirako zosungirako, adayambitsa mzere watsopano wa olamulira a SSD pogwiritsa ntchito machitidwe a AI. Madivelopa aphatikiza ma accelerator a NVIDIA mozama kukhala owongolera wamba a malo opangira ma data ndi mapulogalamu a kasitomala. Zotsatira zake, adapanga zomanga zokha zomwe zimadya mphamvu zochepa poyerekeza ndi olamulira akale a SSD. Kampaniyo ikuyembekeza kuti dongosololi lipeza ntchito pamakompyuta am'mphepete, kusanthula kwakukulu kwa data ndi IoT.

Mzere wa Western Digital Blue wama drive wasinthidwa posachedwa. Mu Epulo, opanga adapereka yankho - WD Blue SSD yochokera kuukadaulo wa SanDisk, womwe WD idapeza chaka chapitacho. Ma WD Blue SSD osinthidwa amapereka magwiridwe antchito komanso mphamvu zamagetsi. Zomangamanga zimamangidwa pamaziko a ndondomekoyi NVMe, yomwe imapereka mwayi wopeza ma SSD olumikizidwa kudzera pa PCI Express.

Kufotokozera kumeneku kumapangitsa kuti ma drive a SSD aziyenda bwino ndi kuchuluka kwa zopempha nthawi imodzi ndikufulumizitsa kupeza deta. Kuphatikiza apo, NVMe imakulolani kuti muyimitse mawonekedwe a SSD - zambiri kwa opanga ma hardware palibe chifukwa chowononga chuma pakupanga madalaivala apadera, zolumikizira ndi mawonekedwe.

Zoyembekeza

Msika wa data wa SSD ukupita patsogolo pakukonza kamangidwe, kukonza magwiridwe antchito azinthu zosungira ndikuwonjezera mphamvu zamagetsi. Kukula kwa mainjiniya ochokera ku MIT kumathetsa vuto lomaliza. Olemba daliranikuti LightStore idzakhala muyeso wamakampani pakusungirako SSD m'malo opangira data. Ndipo tikhoza kuganiza kuti m'tsogolomu zatsopano, zomangamanga zowonjezereka zidzawonekera potengera izo.

Zida zingapo kuchokera ku blog Yoyamba za IaaS yamakampani:

• Kukula kwa malo opangira deta: zochitika zamakono
• Avito.ru: momwe mtambo wa IaaS umathandizira kukonza bizinesi ya kampani
• Momwe mungasinthire mphamvu zama data center
• Zomwe muyenera kudziwa za PCI DSS: mwachidule
• Chifukwa Chake Makampani Amagwiritsira Ntchito Makina Owoneka, Osati Zotengera
• Momwe IaaS imathandizira kukulitsa bizinesi: mavuto atatu omwe mtambo udzathetsa
• Makompyuta opanda seva mumtambo - mayendedwe amakono kapena chofunikira?

Source: www.habr.com