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Xav tias flash cia yog tus nqi pheej yig heev? Xav Tshua


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Jason Coari, Thoob ntiaj teb Thawj Coj, Cov Khoom Muag thiab Kev Ua Lag Luam ntawm quantum

Txhua tus neeg pom zoo tias lub tshuab xa tuaj yeem xa tau zoo. Thiab rau qee cov kev ua haujlwm thiab kev ua haujlwm, qhov kev ua haujlwm zoo no yog qhov tseemceeb. Piv txwv li, thaum cov neeg kho tshiab ua haujlwm nrog ntau tus ntws ntawm 4K (lossis ntau zaus ntau, 8K) yees duab, flash yuav muab hom kev ua haujlwm tsim nyog los tsim cov ntsiab lus tseem ceeb.

Txawm li cas los xij, muaj kev ntseeg dav dav hauv kev tshaj xov xwm thiab kev lom zem ua lag luam uas lub tshuab hluav taws xob yog kim heev. Thaum quantum cov neeg tshawb fawb txog kev tshaj tawm - xws li tom qab tsim khoom siv, cov koom haum tshaj tawm, cov koom haum muaj tswv yim, studios thiab cov ntaub ntawv xa muag thoob plaws North America, Teb chaws Europe thiab Asia - ntau tshaj ib nrab ntawm cov neeg tuaj teb tau them nqi raws li qhov teeb meem tseem ceeb rau kev siv flash teeb meem.

Qhov no tsuas yog qhov tseeb xwb, thiab tsuas yog vim li ntawd thiaj li qhia ib nrab ntawm zaj dab neeg. Tus nqi ntawm tagnrho flash cia kua yuav tshwm sim kim dua thaum kev tsom xam tsuas yog xam cov nqi sib piv ntawm qhov muaj peev xwm ($ / TB) rau HDD-based thiab SSD-based solutions. Txawm li cas los xij, thaum tag nrho tus nqi ntawm cov tswv cuab (TCO) yog qhov tseeb, tsis yog hais txog kev ua haujlwm, kev lag luam ntawm flash cia, thiab tshwj xeeb uas tsis nco kev nco (NVMe) flash cia, yog qhia.

Thawj yam ua ntej - NV yog dab tsi?

Txog rau thaum qhia txog NVMe, feem ntau flash-based cia - xws li lub xeev-state drives (SSDs) - siv SATA los yog SAS cov technologies kom txuas nrog lub zog ntawm lub computer system. Tab sis SATA thiab SAS tau pib tsim los txhawb cov ntawv nyuaj hard disk (HDDs), thiab cov tuam txhab tsim tau tshiab, cov flash drives sai, cov laus dua cov kev txwv ntawm SSDs.

NVMe raug tsim los rau kev cia siv hluav taws xob. Nrog NVMe, txhua tus tub ntxhais CPU sib txuas lus ncaj nraim nrog kev siv lub high-speed PCIe chaw nres tsheb tsis yog ntawm SATA lossis SAS interface. Siv PCIe, flash-based drives ua rau kev nco nrog es tsis txhob txwm HDDs. NVMe ua tiav qhov kev ua tau zoo dua los ntawm kev txhawb nqa ntau ntau yam ntxiv ntawm ib qho queue, nrog rau txoj kev sib txuas lus, dua li SATA lossis SAS cov kev cai. SATA thiab SAS txhua tus tau hais kom queues, uas tuaj yeem ua raws 32 thiab 254 cov lus txib, feem. Ntawm qhov sib txawv, NVMe tau txhawb kwv yees li 65,000 queues nrog 65,000 lus txib ib zaug twg.

Piv nrog SATA thiab SAS, NVMe enables nws yooj yim dua randomized nyeem thov. NVMe tau lis kwv yees li 1 lab random nyeem ib ob, piv nrog SATA ntawm kwv yees li 50,000 thiab SAS ntawm kwv yees li 200,000 random nyeem ib ob. Thiab, txawm tias tag nrho cov neeg nyeem, NVMe ua rau latency hauv 20 microseconds, muab piv rau hauv 500 microseconds rau SATA thiab SAS. Rau cov neeg

siv kev cia siab los txhawb ntau tus neeg tau ntxiv cov txheej txheem sib npaug ntawm cov ntaub ntawv, SSDs zoo tshaj qhov HDDs.

NVMe tseem tuaj yeem xa cov tswv yim tshwj xeeb dhau ntawm lub network. Hauv kev ntsuam xyuas los ntawm quantum, NVMe cia pom muaj xa ntau tshaj 10 lub sij hawm nyeem thiab sau ntawv tau kev ua tiav nrog kev sib piv nrog NFS thiab SMB txuas nrog cov neeg tau txais kev pab.

Qhia TCO

NVMe yog lub tshuab fais fab uas tso cai rau cov neeg siv tsis tsuas qhib qhov tseeb muaj peev xwm ntawm flash, tab sis ua li ntawd thaum txo TCO. Cov txiaj ntsig ntawm ntau cov commands ib queue, sai nyeem, qis latency thiab exceptional throughput muab sib txuas thiab pab NVMe kom xa ib nqi nqi thiab muaj txiaj ntsim zoo dua.

Yav tag los, siv flash rau networked cia yog ib tus nqi tsis pub vim tias cov koom haum siv kev kawm siab Fiber Channel txuas. Networking feem ntau yog qhov thib ob kev siv nyiaj ntau tshaj tom qab cia tshaj tawm, thiab Fiber Channel networking yuav ua rau peb mus rau plaub lub sij hawm ntau kim tshaj Ethernet.

Nrog rau NVMe, cov koom haum muaj peev xwm ua tau Fiber Channel zoo li kev siv cov nqi hluav taws xob ntau dua Ethernet. Ethernet technology tso cai rau cov neeg siv nyiaj txuag nyiaj tsis yog rau cov khoom, tiam sis tseem ntawm kev tswj, vim Ethernet kev tswj tsis yuav tsum tau kev txawj ntse ntawm Fiber Channel tswj. Nyob ntawm seb qhov loj ntawm lub koom haum twg, muaj kev sib hawm kom tseg tau kaum tawm txhiab - los yog ntau pua txhiab tus - ntawm cov nqi ntawm kev sib tham los ntawm kev siv Ethernet.

Cov nyiaj txuag no tsuas yog cuam tshuam cov peev hauv NVMe cia.

Thaum xav txog NVMe, nws tsis tas yuav ua txhua yam los yog tsis muaj dab tsi

Thaum tib neeg xav ntawm NVMe, lawv feem ntau yuav pom nws li dub thiab dawb - tag nrho NVMe los yog tsis muaj dab tsi. Tab sis muaj ntau qhov chaw grey kom tau tshawb nrhiav. Lub cav uas tsav cov chaw kho vajtse kom siab tshaj plaws rau nws cov peev txheej tau zoo yog software. Kev siv NVMe cia nrog cov ntaub ntawv niaj hnub thiab cov ntaub ntawv tswj xyuas kev lag luam yuav xa ib qhov chaw zov me nyuam nrog ib tus, thoob ntiaj teb npe. Cov koom haum tuaj yeem tsuas yog tus nqi ntawm NVMe khaws cia rau cov haujlwm ua haujlwm thaum uas siv lwm cov kev xaiv cia kom zoo dua qub - nrog cov khoom ntim ntawm disk, cov ntaub ntawv qiv, thiab huab cia - kev ua haujlwm tsis tas yuav tsum muaj tib theem ntawm kev ua tau zoo. Lub peev xwm los tsim kev cog qoob loo tso cai rau cov koomhaum los txo cov kev siv nyiaj kim kim kim kim, thaum tseem tseem tab tom txaus siab rau lawv cov txiaj ntsig.

Ua proactive, tsis thim rov qab

Nrog 4K tam sim no mainstream thiab 8K sai ua qhov qauv tshiab, me ntsis ntawm kev pom thiab npaj hnub no yuav sau nyiaj txuag nyiaj yav tom ntej. Flash-based backup infrastructures muab lub peev xwm los pab txhawb 4K hom hnub no, nrog rau cov uas yav tom ntej nrog rau

8K thiab dhau los. Cov koom haum uas xa cov tshuab fais fab los txhawb lawv txoj kev tsim vaj tse yuav tsum zoo rau kev ua hauj lwm tam sim no thiab tom ntej no tiam NVMe yees. Thiab raws li lub neej txoj haujlwm ntawm cov kev siv kabmob no ntxiv, cov nqi txo nqi yuav txo tau - ua rau cov peev nyiaj mus ntxiv.

Rau cov koom haum uas tau txwv lossis txwv tsis pub muaj kev tawm tswv yim thiab kev xa tawm vim pom tias muaj nuj nqi ntau dua ntawm qhov chaw ceev cia, kuv yuav teeb cov lus nug hauv qab no:

· Cov kev sojntsuam puas xam pom cov nqi chaw qiv nyiaj, cov nqi rau cov neeg ua haujlwm, cov nqi txo nqi, thiab cov nqi sib txuas lus thaum muab piv nrog qhov system HDD?

· Tus nqi them rau kev ua haujlwm rau ib tus neeg twg, tsis muaj peev xwm li cas?

Tshawb nrhiav cov lus nug no hauv qhov tob tshaj ntawd yuav ua rau koj pom tias qhov kev faib tawm NVMe yog lo lus teb - tsis yog tus nqi, tab sis vim nws. Qee lub sij hawm qhov tseeb yeej yog nyob rau hauv cov ntsiab lus.

Txog Jason Coari

Jason Coari, Thoob ntiaj teb Thawj Coj, Cov Khoom Muag thiab Tshuaj Kev Muag Khoom quantum, yog ib tug qub tub rog nyob rau hauv kev lag luam kev lag luam, nrog ntau tshaj 20 xyoo ntawm kev paub txog kev muag khoom thiab kev lag luam ntawm kev ua lag luam cov khoom muag. Jason ua rau lub tuam txhab cov khoom thiab kev lag luam zoo rau qhov teev tawm tawm thoob plaws tag nrho cov lag luam. Yav dhau los, nws tau ua haujlwm ntau lub luag haujlwm hauv SGI, tsis tshua muaj tus coj ncaj qha HPC cov khoom lag luam tawm thiab ua rau cov koom haum European thiab APAC.


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