Yuav ua li cas xaiv cia yam tsis tau tua koj tus kheej hauv ko taw

Taw qhia

Nws yog lub sijhawm los yuav khoom cia. Leej twg coj, leej twg yuav mloog? Tus neeg muag khoom A tham txog tus neeg muag khoom B, thiab tom qab ntawd muaj cov neeg sib koom ua ke C, uas qhia qhov ntxeev lus thiab qhia tus neeg muag khoom D. Nyob rau hauv qhov xwm txheej zoo li no, txawm tias tus kws tsim khoom lag luam paub txog lub taub hau yuav tig, tshwj xeeb tshaj yog nrog txhua tus neeg muag khoom tshiab thiab SDS thiab hyperconvergence uas yog fashionable. hnub no.

Yog li ntawd, yuav ua li cas koj txiav txim siab nws tag nrho thiab tsis xaus mus ua neeg ruam? Peb (AntonVirtual Anton Zhbankov thiab Corp Evgeniy Elizarov) cia peb sim tham txog qhov no hauv Lavxias teb sab.
Cov kab lus muaj ntau qhov sib xws thiab yog qhov txuas ntxiv ntawm "Virtualized data center tsim"Raws li kev xaiv cov tshuab khaws cia thiab tshuaj xyuas cov thev naus laus zis cia. Peb yuav saib luv luv ntawm txoj kev xav dav dav, tab sis peb xav kom koj nyeem cov lus no.

Vim li cas

Feem ntau koj tuaj yeem pom qhov xwm txheej uas tus neeg tshiab tuaj rau lub rooj sib tham lossis kev sib tham tshwj xeeb, xws li Kev Sib Tham Txog Kev Cia Siab, thiab nug cov lus nug: "ntawm no lawv muab kuv ob txoj kev cia khoom - ABC SuperStorage S600 thiab XYZ HyperOcean 666v4, koj xav li cas. ?”

Thiab qhov tsis meej pem pib txog leej twg muaj cov yam ntxwv ntawm kev siv cov yam ntxwv txaus ntshai thiab tsis nkag siab, uas rau tus neeg tsis tau npaj yog suav tag nrho.

Yog li, lo lus nug tseem ceeb thiab thawj zaug uas koj yuav tsum tau nug koj tus kheej ntev ua ntej muab cov lus qhia tshwj xeeb hauv kev lag luam tawm tswv yim yog vim li cas? Vim li cas qhov system cia no xav tau?

Cov lus teb yuav npaj txhij txog, thiab heev Tony Robbins style - khaws cov ntaub ntawv. Ua tsaug, tus thawj coj! Thiab tseem, qee zaum peb nkag siab tob rau hauv kev sib piv cov ntsiab lus uas peb tsis nco qab vim li cas peb thiaj ua txhua yam no hauv thawj qhov chaw.

Yog li, txoj haujlwm ntawm cov ntaub ntawv khaws cia yog khaws cia thiab muab kev nkag mus rau DATA nrog rau qhov ua tau zoo. Peb mam li pib nrog cov ntaub ntawv.

cov ntaub ntawv

Hom ntaub ntawv

Peb npaj yuav khaws cov ntaub ntawv li cas? Ib lo lus nug tseem ceeb heev uas tuaj yeem tshem tawm ntau lub tshuab khaws cia los ntawm kev xav txog txawm tias. Piv txwv li, koj npaj khaws cov yeeb yaj kiab thiab duab. Koj tuaj yeem hla tam sim ntawd cov tshuab tsim los rau kev nkag mus rau hauv cov blocks me me, lossis cov tshuab uas muaj cov khoom ntiag tug hauv compression / deduplication. Cov no tsuas yog cov tshuab zoo heev, peb tsis xav hais dab tsi phem. Tab sis nyob rau hauv cov ntaub ntawv no, lawv lub zog yuav yog tsis muaj zog (video thiab cov duab tsis compressed) los yog tsuas yog ho nce tus nqi ntawm lub system.

Hloov pauv, yog tias qhov kev npaj siv yog kev lag luam tsis khoom DBMS, ces zoo heev multimedia streaming systems muaj peev xwm xa gigabytes ib ob yuav yog qhov kev xaiv tsis zoo.

Cov ntaub ntawv ntim

Peb npaj khaws cov ntaub ntawv ntau npaum li cas? Quantity ib txwm txhim kho mus rau qhov zoo; qhov no yuav tsum tsis txhob hnov ​​qab, tshwj xeeb tshaj yog nyob rau hauv peb lub sij hawm ntawm exponential loj hlob nyob rau hauv ntim ntawm cov ntaub ntawv. Petabyte-chav kawm tshuab tsis yog qhov tsis tshua muaj, tab sis qhov loj dua lub peev xwm petabyte, qhov tshwj xeeb ntawm lub kaw lus yuav dhau los, qhov tsis tshua muaj kev nkag tau yooj yim dua qhov kev ua haujlwm ib txwm muaj ntawm cov khoom siv me me thiab nruab nrab-qhov nruab nrab. Nws yog qhov tsis tseem ceeb vim tias qhov thaiv kev nkag mus rau cov ntawv txheeb cais ib leeg dhau los ua qhov loj dua li muaj RAM ntawm cov tswj hwm. Tsis hais compression/tiering. Cia peb hais tias peb xav hloov lub compression algorithm mus rau lub zog ntau dua thiab compress 20 petabytes ntawm cov ntaub ntawv. Yuav siv sijhawm ntev npaum li cas: rau lub hlis, ib xyoos?

Ntawm qhov tod tes, vim li cas thab yog tias koj xav khaws thiab ua 500 GB ntawm cov ntaub ntawv? Tsuas yog 500. Tsev SSDs (nrog DWPD qis) ntawm qhov loj me no tsis muaj nqi dab tsi. Vim li cas thiaj tsim lub Hoobkas Fiber Channel thiab yuav high-end sab nraud cia tshuab uas raug nqi sib npaug ntawm tus choj cam khwb cia hlau?

Qhov feem pua ​​​​ntawm tag nrho cov ntaub ntawv kub yog dab tsi? Yuav ua li cas uneven load nyob rau hauv cov nqe lus ntawm cov ntaub ntawv ntim? Qhov no yog qhov chaw khaws cia thev naus laus zis lossis Flash Cache tuaj yeem pab tau zoo yog tias cov ntaub ntawv kub me me piv rau tag nrho. Los yog vice versa, nrog ib tug uniform load thoob plaws tag nrho cov ntim, uas yog feem ntau pom nyob rau hauv streaming systems (video soj ntsuam, ib co analytics systems), xws li technologies yuav tsis muab ib yam dab tsi thiab yuav tsuas nce tus nqi / complexity ntawm lub system.

ИС

Lwm sab ntawm cov ntaub ntawv yog cov ntaub ntawv system uas siv cov ntaub ntawv. Ib qho IS muaj cov txheej txheem uas yuav tau txais cov ntaub ntawv. Yog xav paub ntxiv txog IS, saib "Virtualized Data Center Design."

Resiliency / Availability Requirements

Cov kev xav tau rau kev ua txhaum cai / cov ntaub ntawv muaj tau txais los ntawm IS siv lawv thiab tau hais nyob rau hauv peb tus lej - RPO, OTR, muaj.

Muaj Txaus - qhov sib faib rau lub sijhawm muab sijhawm thaum cov ntaub ntawv muaj rau kev ua haujlwm nrog lawv. Feem ntau hais tawm raws li tus naj npawb ntawm 9. Piv txwv li, ob cuaj hauv ib xyoos txhais tau hais tias muaj 99%, lossis txwv tsis pub 95 teev ntawm qhov tsis muaj nyob hauv ib xyoos raug tso cai. Peb cuaj - 9,5 teev ib xyoos.

RPO / RTO tsis yog tag nrho cov ntsuas, tab sis rau txhua qhov xwm txheej (kev sib tsoo), sib piv rau qhov muaj.

RPO - tus nqi ntawm cov ntaub ntawv poob thaum muaj xwm txheej (hauv teev). Piv txwv li, yog tias backups tshwm sim ib hnub twg, ces RPO = 24 teev. Cov. Nyob rau hauv qhov xwm txheej ntawm kev puas tsuaj thiab ua tiav qhov poob ntawm lub kaw lus cia, cov ntaub ntawv mus txog 24 teev tuaj yeem ploj mus (los ntawm lub sijhawm thaub qab). Raws li RPO tau teev tseg rau IS, piv txwv li, cov kev cai thaub qab tau sau. Tsis tas li, raws li RPO, koj tuaj yeem nkag siab ntau npaum li cas cov ntaub ntawv synchronous / asynchronous replication yog xav tau.

OTR - sij hawm rov qab muab kev pab (cov ntaub ntawv nkag) tom qab muaj kev puas tsuaj. Raws li tus nqi RTO muab, peb tuaj yeem nkag siab seb puas xav tau ib pawg metro, lossis seb qhov kev hloov pauv ntawm unidirectional puas txaus. Koj puas xav tau cov chav kawm hi-end multi-controller khaws cia?

Kev xav tau kev ua haujlwm

Txawm hais tias qhov no yog cov lus nug pom tseeb, nws yog qhov uas feem ntau ntawm cov teeb meem tshwm sim. Nyob ntawm seb koj puas muaj qee yam kev tsim kho vaj tse lossis tsis, txoj hauv kev los sau cov txheeb cais tsim nyog yuav raug tsim.

Koj twb muaj lub kaw lus cia thiab tab tom nrhiav kev hloov lossis xav yuav lwm tus rau kev nthuav dav. Txhua yam yooj yim ntawm no. Koj nkag siab tias cov kev pabcuam twg koj twb muaj thiab koj npaj yuav siv rau yav tom ntej. Raws li cov kev pabcuam tam sim no, koj muaj sijhawm los sau cov lej ua haujlwm. Txiav txim siab txog tus lej tam sim no ntawm IOPS thiab latency tam sim no - cov ntsuas no yog dab tsi thiab lawv puas txaus rau koj cov haujlwm? Qhov no tuaj yeem ua tiav ob qho tib si ntawm cov ntaub ntawv khaws cia nws tus kheej thiab los ntawm cov tswv uas txuas nrog nws.

Ntxiv mus, koj yuav tsum tau saib tsis yog tsuas yog ntawm cov khoom thauj tam sim no, tab sis dhau ib lub sijhawm (zoo dua ib hlis). Saib seb qhov siab tshaj plaws yog thaum nruab hnub, dab tsi thauj cov thaub qab tsim, thiab lwm yam. Yog tias koj lub kaw lus cia lossis nws cov software tsis muab rau koj nrog cov ntaub ntawv tiav, koj tuaj yeem siv RRDtool dawb, uas tuaj yeem ua haujlwm nrog feem ntau ntawm cov khoom siv nrov tshaj plaws thiab cov keyboards thiab tuaj yeem muab cov ntaub ntawv ntxaws ntxaws rau koj. Nws kuj tseem tsim nyog saib cov khoom thauj ntawm cov tswv uas ua haujlwm nrog lub kaw lus khaws cia, rau cov tshuab virtual tshwj xeeb, lossis dab tsi raws nraim khiav ntawm tus tswv tsev no.

Nws yog ib qho tsim nyog sau cia nyias tias yog tias qhov ncua sij hawm ntawm lub ntim thiab cov chaw khaws ntaub ntawv uas nyob ntawm qhov ntim no txawv heev, koj yuav tsum tau them sai sai rau koj lub network SAN, muaj qhov tshwm sim siab uas muaj teeb meem nrog nws thiab ua ntej yuav khoom tshiab. system, nws yog tsim nyog saib rau hauv qhov teeb meem no, vim hais tias muaj ib tug heev tshwm sim ntawm kev ua tau zoo ntawm lub tam sim no system.

Koj tab tom tsim kev tsim kho vaj tse los ntawm kos, lossis yuav ib lub kaw lus rau qee qhov kev pabcuam tshiab, cov khoom thauj uas koj tsis paub txog. Muaj ntau ntau txoj kev xaiv: sib txuas lus nrog cov npoj yaig ntawm cov chaw tshwj xeeb los sim tshawb nrhiav thiab kwv yees lub nra, hu rau tus neeg koom ua ke uas muaj kev paub txog kev siv cov kev pabcuam zoo sib xws thiab leej twg tuaj yeem suav cov load rau koj. Thiab qhov kev xaiv thib peb (feem ntau yog qhov nyuaj tshaj plaws, tshwj xeeb tshaj yog tias nws txhawj xeeb txog kev sau ntawv hauv tsev lossis tsis tshua muaj daim ntawv thov) yog sim nrhiav cov kev ua tau zoo los ntawm cov neeg tsim khoom.

Thiab, thov nco ntsoov, qhov kev xaiv raug tshaj plaws los ntawm qhov pom ntawm kev siv tswv yim yog tus tsav ntawm cov cuab yeej siv tam sim no, lossis cov cuab yeej muab rau kev sim los ntawm tus neeg muag khoom / koom ua ke.

Cov cai tshwj xeeb

Cov kev cai tshwj xeeb yog txhua yam uas tsis poob raws li qhov yuav tsum tau ua rau kev ua haujlwm, kev ua txhaum cai thiab kev ua haujlwm rau kev ua haujlwm ncaj qha thiab muab cov ntaub ntawv.

Ib qho ntawm cov kev cai tshwj xeeb tshaj plaws rau cov ntaub ntawv khaws cia tuaj yeem hu ua "alienable storage media." Thiab tam sim ntawd nws yuav pom tseeb tias cov ntaub ntawv khaws cia no yuav tsum suav nrog lub tsev qiv ntawv daim kab xev lossis tsuas yog daim kab xev tsav mus rau qhov uas cov ntaub ntawv thaub qab tau muab pov tseg. Tom qab ntawd ib tug neeg kawm tshwj xeeb kos npe rau daim kab xev thiab ua siab loj nqa nws mus rau qhov chaw nyab xeeb tshwj xeeb.
Lwm qhov piv txwv ntawm qhov yuav tsum tau tshwj xeeb yog kev tiv thaiv shockproof tsim.

Qhov twg

Qhov thib ob lub ntsiab tseem ceeb hauv kev xaiv ib qho kev khaws cia tshwj xeeb yog cov ntaub ntawv hais txog qhov twg qhov chaw khaws cia no yuav nyob. Pib los ntawm thaj chaw lossis thaj chaw huab cua, thiab xaus nrog cov neeg ua haujlwm.

Cov qhua tuaj noj mov

Puas yog qhov chaw khaws cia no npaj rau leej twg? Lo lus nug muaj cov laj thawj hauv qab no:

Tsoom fwv cov neeg siv khoom / lag luam.
Cov neeg siv khoom lag luam tsis muaj kev txwv thiab tsis tas yuav tsum tuav kev sib tw, tsuas yog ua raws li nws tus kheej cov kev cai sab hauv.

Tsoom fwv cov neeg siv khoom yog qhov txawv. 44 Tsoom Fwv Teb Chaws Txoj Cai thiab lwm yam zoo siab nrog kev sib tw thiab cov kev qhia tshwj xeeb uas tuaj yeem sib tw.

Cov neeg siv khoom raug nplua
Zoo, lo lus nug ntawm no yog qhov yooj yim heev - qhov kev xaiv tsuas yog txwv los ntawm kev muab rau cov neeg siv khoom.

Cov kev cai sab hauv / cov neeg muag khoom / qauv tso cai rau kev yuav khoom
Cov lus nug kuj yooj yim heev, tab sis koj yuav tsum nco ntsoov nws.

Qhov twg lub cev

Hauv seem no peb xav txog txhua yam teeb meem nrog thaj chaw, kev sib txuas lus, thiab microclimate hauv thaj chaw nyob.

Cov neeg ua haujlwm

Leej twg yuav ua haujlwm nrog lub kaw lus cia? Qhov no tsis yog qhov tseem ceeb tshaj qhov uas lub kaw lus cia nws tus kheej tuaj yeem ua tau.
Txawm hais tias qhov kev cog lus zoo npaum li cas, txias thiab zoo heev ntawm kev cia khoom los ntawm tus neeg muag khoom A yog, tej zaum yuav muaj qhov taw qhia me me hauv kev txhim kho nws yog tias cov neeg ua haujlwm tsuas paub ua haujlwm nrog tus muag khoom B, thiab tsis muaj kev npaj rau kev yuav khoom ntxiv thiab kev koom tes nrog A.

Thiab ntawm chav kawm, lwm sab ntawm cov lus nug yog yuav ua li cas muaj kev cob qhia cov neeg ua haujlwm nyob rau hauv ib cheeb tsam muab ncaj qha rau hauv lub tuam txhab thiab muaj peev xwm ntawm kev ua lag luam. Rau cov cheeb tsam, xaiv cov tshuab khaws cia nrog cov kev sib tshuam yooj yim lossis muaj peev xwm los tswj hwm kev tswj hwm hauv cheeb tsam tuaj yeem ua rau muaj kev nkag siab ntau. Txwv tsis pub, ntawm qee kis nws yuav ua rau mob hnyav heev. Hauv Is Taws Nem muaj tag nrho cov dab neeg hais txog yuav ua li cas tus neeg ua haujlwm tshiab uas tuaj txog, nag hmo tus tub ntxhais kawm, tau teeb tsa zoo li no uas tag nrho lub chaw haujlwm raug puas tsuaj.

Ib puag ncig

Thiab ntawm chav kawm, ib lo lus nug tseem ceeb yog nyob rau hauv dab tsi ib puag ncig qhov system cia yuav ua haujlwm.

• Yuav ua li cas txog lub hwj chim / txias?
• Kev sib txuas dab tsi
• Nws yuav nruab qhov twg?
• Lwm yam

Feem ntau cov lus nug no tau txais kev tso cai thiab tsis yog qhov tshwj xeeb, tab sis qee zaum lawv yog cov uas tuaj yeem tig txhua yam.

Dab tsi

Tus neeg muag khoom

Raws li niaj hnub no (nruab nrab-2019), lub khw muag khoom Lavxias tuaj yeem muab faib ua 5 pawg:

1. Qhov kev faib siab tshaj plaws yog cov tuam txhab tsim tau zoo nrog ntau hom disk txee los ntawm qhov yooj yim mus rau hi-end (HPE, DellEMC, Hitachi, NetApp, IBM / Lenovo)
2. Kev faib thib ob - cov tuam txhab uas muaj cov kab txwv, cov neeg ua si, cov neeg muag khoom loj SDS lossis cov neeg tuaj tshiab tshiab (Fujitsu, Datacore, Infinidat, Huawei, Ntshiab, thiab lwm yam)
3. Kev faib thib peb - ​​niche kev daws teeb meem hauv qib qis kawg, pheej yig SDS, cov khoom lag luam siab heev raws li ceph thiab lwm cov haujlwm qhib (Infortrend, Starwind, thiab lwm yam)
4. SOHO ntu - me me thiab ultra-me me cia systems ntawm lub tsev / chaw ua haujlwm me (Synology, QNAP, thiab lwm yam)
5. Ntshuam-hloov tshuab cia - qhov no suav nrog ob qho tib si kho vajtse ntawm thawj ntu nrog cov ntawv sau rov qab, thiab cov neeg sawv cev tsis tshua muaj qhov thib ob (RAIDIX, peb yuav muab lawv thib ob ua ntej), tab sis feem ntau qhov no yog qhov thib peb (Aerodisk, Baum, Depo, thiab lwm yam)

Kev faib tawm yog qhov kev txiav txim siab heev, thiab tsis txhais tau tias txhua ntu thib peb lossis SOHO yog qhov phem thiab siv tsis tau. Hauv cov haujlwm tshwj xeeb nrog cov ntaub ntawv qhia meej meej thiab thauj khoom profile, lawv tuaj yeem ua haujlwm tau zoo, deb tshaj qhov kev faib thawj zaug ntawm tus nqi / qhov zoo. Nws yog ib qho tseem ceeb rau thawj zaug txiav txim siab txog koj lub hom phiaj, txoj kev loj hlob, thiab kev ua haujlwm uas yuav tsum tau ua - thiab tom qab ntawd Synology yuav ua haujlwm rau koj ncaj ncees, thiab koj cov plaub hau yuav muag muag thiab silky.

Ib qho tseem ceeb thaum xaiv ib tus neeg muag khoom yog qhov chaw nyob tam sim no. Muaj pes tsawg lub tshuab khaws cia koj twb muaj thiab qhov chaw khaws cia koj cov engineers tuaj yeem ua haujlwm nrog. Koj puas xav tau lwm tus neeg muag khoom, lwm qhov kev sib cuag, koj puas yuav maj mam txav tag nrho cov khoom thauj los ntawm tus neeg muag khoom A mus rau tus neeg muag khoom B?

Ib tug yuav tsum tsis txhob tsim cov koom haum tshaj qhov tsim nyog.

iSCSI/FC/File

Tsis muaj kev pom zoo ntawm cov engineers txog qhov teeb meem ntawm kev nkag mus rau cov txheej txheem, thiab kev sib cav zoo li kev sib tham txog kev ntseeg ntau dua li kev tsim vaj tsev. Tab sis feem ntau, cov ntsiab lus hauv qab no tuaj yeem sau tseg:

FCOE tuag ntau tshaj ciaj.

FC vs iSCSI. Ib qho txiaj ntsig tseem ceeb ntawm FC hauv 2019 dhau ntawm IP cia, lub Hoobkas tshwj xeeb rau kev nkag mus rau cov ntaub ntawv, yog offset los ntawm kev sib koom tes IP network. FC tsis muaj qhov zoo thoob ntiaj teb ntawm IP tes hauj lwm, thiab IP tuaj yeem siv los tsim cov txheej txheem khaws cia ntawm txhua theem kev thauj khoom, mus txog rau cov tshuab hnyav DBMS rau cov tub ntxhais kawm ntawv hauv lub txhab nyiaj loj. Ntawm qhov tod tes, kev tuag ntawm FC tau hais los yav tom ntej rau ntau xyoo tam sim no, tab sis qee yam tseem tiv thaiv nws. Niaj hnub no, piv txwv li, qee tus neeg ua si hauv khw muag khoom tau nquag tsim NVMEoF tus qauv. Lub sij hawm yuav qhia seb nws puas yuav faib txoj hmoo ntawm FCoE.

Cov ntaub ntawv nkag kuj tsis yog ib yam dab tsi tsis tsim nyog mloog. NFS/CIFS ua tau zoo nyob rau hauv qhov chaw tsim khoom thiab, yog tias tsim kom raug, tsis muaj kev tsis txaus siab ntau dua li thaiv cov txheej txheem.

Hybrid / Tag nrho Flash Array

Classic cia systems tuaj nyob rau hauv 2 hom:

1. AFA (Txhua Flash Array) - cov tshuab ua kom zoo rau kev siv SSD.
2. Hybrid - tso cai rau koj siv ob qho tib si HDD thiab SSD lossis ua ke ntawm lawv.

Lawv qhov sib txawv tseem ceeb yog kev txhawb nqa kev siv thev naus laus zis thiab qib siab tshaj plaws ntawm kev ua tau zoo (IOPS siab thiab qis latency). Ob lub tshuab (hauv feem ntau ntawm lawv cov qauv, tsis suav cov ntu qis kawg) tuaj yeem ua haujlwm raws li ob qho tib si thaiv thiab cov ntaub ntawv. Cov kev txhawb nqa kev ua haujlwm nyob ntawm theem ntawm qhov system, thiab rau cov qauv hluas nws feem ntau raug txo kom tsawg kawg nkaus. Qhov no yog tsim nyog them sai sai rau thaum koj tab tom kawm cov yam ntxwv ntawm ib qho qauv, thiab tsis yog tsuas yog lub peev xwm ntawm cov kab tag nrho. Tsis tas li ntawd, tau kawg, nws cov yam ntxwv kev, xws li processor, tus nqi ntawm lub cim xeeb, cache, tus naj npawb thiab hom chaw nres nkoj, thiab lwm yam, kuj nyob ntawm theem ntawm lub system. Los ntawm kev tswj hwm qhov kev xav, AFAs txawv ntawm hybrid (disk) systems nkaus xwb hauv kev siv cov txheej txheem rau kev ua haujlwm nrog SSD drives, thiab txawm tias koj siv SSD hauv hybrid system, qhov no tsis txhais tau tias koj yuav muaj peev xwm. kom ua tiav qib kev ua tau zoo ntawm qib ntawm AFA system. Tsis tas li ntawd, nyob rau hauv feem ntau, inline npaum cia mechanisms yog neeg xiam oob qhab ntawm hybrid systems, thiab lawv cov kev koom ua ke ua rau poob rau hauv kev ua tau zoo.

Tshwj xeeb cia systems

Ntxiv rau lub hom phiaj kev cia khoom siv dav dav, tsom rau kev ua haujlwm ntawm cov ntaub ntawv ua haujlwm, muaj cov txheej txheem cia tshwj xeeb nrog cov ntsiab lus tseem ceeb uas txawv ntawm qhov ib txwm muaj (tsis tshua muaj latency, siab IOPS):

Media.

Cov tshuab no yog tsim los khaws cia thiab ua cov ntaub ntawv xov xwm loj. Resp. Qhov kev ncua sijhawm dhau los ua qhov tsis tseem ceeb, thiab muaj peev xwm xa thiab tau txais cov ntaub ntawv nyob rau hauv ib tug dav band nyob rau hauv ntau parallel kwj los ua ntej.

Deduplicating cia systems rau backups.

Txij li thaum cov ntaub ntawv thaub qab tau txawv ntawm lawv qhov zoo sib xws, uas yog qhov tsis tshua muaj nyob rau hauv ib txwm muaj (qhov nruab nrab cov ntawv thaub qab txawv ntawm nag hmo cov ntawv luam los ntawm 1-2%), cov chav kawm ntawm cov tshuab no tau zoo heev pob cov ntaub ntawv kaw rau hauv ib qho me me. tus xov tooj ntawm lub cev. Piv txwv li, qee zaum, cov ntaub ntawv compression piv tuaj yeem ncav cuag 200 rau 1.

Cov khoom khaws cia systems.

Cov kab ke khaws cia no tsis muaj qhov niaj hnub thaiv-nkag mus ntim thiab cov ntaub ntawv sib koom, thiab feem ntau lawv zoo li cov ntaub ntawv loj loj. Kev nkag mus rau ib qho khoom khaws cia hauv qhov system no yog ua los ntawm tus cim tshwj xeeb lossis los ntawm metadata (piv txwv li, tag nrho JPEG hom khoom nrog hnub tsim ntawm XX-XX-XXXX thiab YY-YY-YYYY).

Kev ua raws cai.

Lawv tsis yog li ntawd nyob rau hauv Russia niaj hnub no, tab sis lawv tsim nyog hais. Lub hom phiaj ntawm cov txheej txheem khaws cia yog lav cov ntaub ntawv khaws cia kom ua raws li cov cai tswjfwm kev ruaj ntseg lossis cov cai tswj hwm. Qee lub tshuab (piv txwv li EMC Centera) tau siv lub luag haujlwm los txwv tsis pub tshem tawm cov ntaub ntawv - sai li sai tau thaum tus yuam sij tig thiab lub kaw lus nkag mus rau hom no, tsis yog tus thawj coj lossis lwm tus neeg tuaj yeem tshem tawm cov ntaub ntawv uas twb tau sau tseg lawm.

Proprietary technologies

Flash cache

Flash Cache yog ib lub npe nrov rau txhua tus tswv cuab siv rau kev siv flash nco ua lub cache thib ob. Thaum siv lub flash cache, lub kaw lus cia feem ntau yog xam los muab cov khoom ruaj khov los ntawm cov khoom sib nqus, thaum lub ncov tau txais kev pab los ntawm cache.

Nyob rau hauv cov ntaub ntawv no, nws yog tsim nyog los nkag siab txog lub load profile thiab cov degree ntawm localization ntawm nkag mus rau blocks ntawm cia ntim. Flash cache yog cov cuab yeej siv rau kev ua haujlwm nrog cov lus nug hauv cheeb tsam, thiab siv tsis tau rau cov khoom ntim tsis sib xws (xws li rau cov tshuab tshuaj ntsuam xyuas).

Muaj ob qhov kev siv flash cache muaj nyob hauv khw:

• Nyeem nkaus xwb. Hauv qhov no, tsuas yog nyeem cov ntaub ntawv yog cached, thiab sau ncaj qha mus rau disks. Qee cov tuam txhab lag luam, xws li NetApp, ntseeg tias kev sau ntawv rau lawv lub tshuab khaws cia yog qhov zoo tshaj plaws, thiab cov cache yuav tsis pab txhua.
• Nyeem/Sau. Tsis tsuas yog nyeem ntawv xwb, tab sis kuj tseem sau ntawv yog cached, uas tso cai rau koj los cuam tshuam cov kwj deg thiab txo qhov cuam tshuam ntawm RAID Kev nplua, thiab vim li ntawd ua rau muaj kev ua tau zoo tag nrho rau cov tshuab khaws cia nrog cov txheej txheem sau ntawv tsawg dua.

Kev Tawm Tsam

Multi-level cia (nyiam dua) yog ib qho cuab yeej rau kev sib txuas nrog cov qib sib txawv, xws li SSD thiab HDD, rau hauv ib lub pas dej ua ke. Nyob rau hauv cov ntaub ntawv ntawm pronounced unevenness ntawm kev nkag tau mus rau cov ntaub ntawv blocks, lub system yuav tau txais kev sib npaug cov ntaub ntawv blocks, tsiv loaded sawv daws yuav mus rau ib tug high-kev ua tau zoo, thiab txias sawv daws yuav, ntawm qhov tsis tooj, mus rau ib tug qeeb qeeb.

Hybrid systems ntawm cov chav kawm qis thiab nruab nrab siv ntau theem cia nrog cov ntaub ntawv txav ntawm qib ntawm lub sijhawm. Nyob rau tib lub sijhawm, qhov loj ntawm ntau theem cia thaiv rau cov qauv zoo tshaj plaws yog 256 MB. Cov yam ntxwv no tsis tso cai rau peb los txiav txim siab txog qib kev cia khoom siv thev naus laus zis rau kev tsim cov khoom lag luam, raws li ntau tus neeg ntseeg yuam kev. Multi-theem cia nyob rau hauv qis- thiab nruab nrab-chav kawm systems yog ib tug technology rau optimizing cia cov nqi rau systems nrog pronounced load unevenness.

Snapshot

Tsis muaj teeb meem ntau npaum li cas peb tham txog kev ntseeg siab ntawm cov tshuab khaws cia, muaj ntau lub sijhawm los poob cov ntaub ntawv uas tsis nyob ntawm cov teeb meem kho vajtse. Qhov no tuaj yeem yog kab mob, hackers lossis lwm yam tsis txhob txwm muab tshem tawm / kev ua txhaum ntawm cov ntaub ntawv. Vim li no, thaub qab cov ntaub ntawv ntau lawm yog ib feem tseem ceeb ntawm tus engineer txoj haujlwm.

Lub snapshot yog ib qho snapshot ntawm ib lub ntim ntawm qee lub sijhawm. Thaum ua haujlwm nrog ntau lub tshuab, xws li virtualization, databases, thiab lwm yam. peb yuav tsum tau coj cov duab zoo li no los ntawm qhov peb yuav luam cov ntaub ntawv mus rau ib daim ntawv theej, thaum peb IS yuav muaj peev xwm ua haujlwm ruaj ntseg txuas ntxiv nrog cov ntim no. Tab sis nws tsim nyog nco ntsoov tias tsis yog txhua qhov snapshots muaj txiaj ntsig zoo sib xws. Cov neeg muag khoom sib txawv muaj ntau txoj hauv kev los tsim snapshots ntsig txog lawv cov architecture.

CoW (Copy-on-Write). Thaum koj sim sau cov ntaub ntawv thaiv, nws cov ntsiab lus tseem ceeb tau theej mus rau thaj chaw tshwj xeeb, tom qab ntawd cov ntawv sau ua haujlwm ib txwm. Qhov no tiv thaiv cov ntaub ntawv kev noj nyiaj txiag hauv lub snapshot. Lawm, tag nrho cov "parasitic" cov ntaub ntawv manipulations ua rau ntxiv load rau ntawm qhov system cia thiab vim li no, cov neeg muag khoom nrog cov kev siv zoo sib xws tsis pom zoo kom siv ntau tshaj li kaum os snapshots, thiab tsis siv lawv tag nrho ntawm cov khoom ntim hnyav heev.

RoW (Redirect-on-Write). Nyob rau hauv cov ntaub ntawv no, tus thawj ntim ib txwm freezes, thiab thaum sim sau ib cov ntaub ntawv thaiv, lub kaw lus cia sau cov ntaub ntawv mus rau ib tug tshwj xeeb cheeb tsam nyob rau hauv qhov chaw dawb, hloov qhov chaw ntawm no block nyob rau hauv lub metadata rooj. Qhov no tso cai rau koj los txo tus naj npawb ntawm kev sau rov ua haujlwm, uas thaum kawg tshem tawm qhov kev poob qis hauv kev ua haujlwm thiab tshem tawm cov kev txwv ntawm snapshots thiab lawv tus lej.

Snapshots kuj muaj ob hom kev cuam tshuam rau cov ntawv thov:

Daim ntawv thov sib xws. Thaum lub sijhawm tsim cov duab thaij duab, lub kaw lus khaws cia rub tus neeg sawv cev hauv cov neeg siv khoom siv, uas yuam kom tshem tawm cov ntaub ntawv khaws cia ntawm lub cim xeeb rau disk thiab yuam cov ntawv thov ua qhov no. Hauv qhov no, thaum rov qab los ntawm snapshot, cov ntaub ntawv yuav zoo ib yam.

Crash zoo ib yam. Nyob rau hauv cov ntaub ntawv no, tsis muaj dab tsi zoo li ntawd tshwm sim thiab lub snapshot yog tsim raws li yog. Nyob rau hauv cov ntaub ntawv ntawm rov qab los ntawm xws li ib tug snapshot, daim duab yog zoo tib yam rau dab tsi yuav tshwm sim yog hais tias lub hwj chim twb dheev muab tua thiab ib co poob ntawm cov ntaub ntawv yog ua tau, daig nyob rau hauv caches thiab yeej tsis ncav cuag lub disk. Cov snapshots zoo li no yooj yim dua rau kev siv thiab tsis ua rau kev ua haujlwm tsis zoo hauv kev siv, tab sis tsis tshua muaj kev ntseeg siab.

Vim li cas cov snapshots xav tau ntawm lub kaw lus cia?

• Agentless backup ncaj qha los ntawm qhov system cia
• Tsim ib puag ncig sim raws li cov ntaub ntawv tiag tiag
• Nyob rau hauv cov ntaub ntawv ntawm cov ntaub ntawv cia systems, nws yuav siv tau los tsim VDI ib puag ncig los ntawm kev siv cov cia system snapshots es tsis txhob ntawm ib tug hypervisor.
• Xyuas kom RPOs qis los ntawm kev tsim cov duab thaij duab ntawm qhov zaus ntau dua li cov zaus thaub qab

Cloning

Volume cloning - ua haujlwm ntawm lub hauv paus ntsiab lus zoo ib yam li snapshots, tab sis yog siv tsis yog rau kev nyeem cov ntaub ntawv, tab sis rau kev ua haujlwm nrog nws. Peb muaj peev xwm tau txais ib daim qauv ntawm peb lub ntim, nrog rau tag nrho cov ntaub ntawv ntawm nws, tsis tas yuav luam ib lub cev, uas yuav txuag tau qhov chaw. Feem ntau, ntim cloning yog siv nyob rau hauv Test & Dev los yog yog tias koj xav mus xyuas lub functionality ntawm ib co tshiab ntawm koj IS. Cloning yuav tso cai rau koj ua qhov no sai thiab kev lag luam raws li qhov ua tau ntawm cov peev txheej disk, vim Tsuas yog cov ntaub ntawv hloov pauv yuav raug sau.

Replication / Journaling

Replication yog ib txoj hauv kev los tsim ib daim qauv ntawm cov ntaub ntawv ntawm lwm lub cev khaws cia. Feem ntau, txhua tus neeg muag khoom muaj cov cuab yeej cuab tam uas ua haujlwm tsuas yog hauv nws txoj kab. Tab sis kuj tseem muaj cov kev daws teeb meem thib peb, suav nrog cov uas ua haujlwm ntawm qib hypervisor, xws li VMware vSphere Replication.

Kev ua haujlwm ntawm cov thev naus laus zis thiab kev siv yooj yim ntawm lawv feem ntau yog qhov zoo tshaj plaws rau cov neeg siv thoob ntiaj teb, tab sis lawv dhau los ua tsis siv tau thaum, piv txwv li, nws yog qhov tsim nyog los ua ib qho kev hloov pauv ntawm NetApp rau HP MSA.

Replication yog muab faib ua ob subtypes:

Synchronous. Nyob rau hauv cov ntaub ntawv ntawm synchronous replication, kev sau ntawv yog xa mus rau lub thib ob cia system tam sim ntawd thiab qhov kev txiav txim tsis tau lees paub kom txog rau thaum lub chaw taws teeb cia system paub meej tias. Vim li no, kev nkag mus qeeb tau nce, tab sis peb muaj daim iav daim ntawv qhia tseeb ntawm cov ntaub ntawv. Cov. RPO = 0 nyob rau hauv cov ntaub ntawv ntawm poob ntawm lub ntsiab cia system.

asynchronous. Kev sau ntawv tau ua tiav tsuas yog nyob rau ntawm qhov chaw khaws cia tseem ceeb thiab tau lees paub tam sim ntawd, thaum lub sijhawm sib sau ua ke nyob rau hauv ib qho tsis rau batch kis mus rau cov chaw taws teeb cia. Hom kev rov ua dua no muaj feem cuam tshuam rau cov ntaub ntawv tsis tshua muaj txiaj ntsig, lossis rau cov channel uas tsis tshua muaj bandwidth lossis siab latency (ib txwm rau kev ncua deb tshaj 100 km). Raws li, RPO = pob ntawv xa zaus.

Feem ntau, nrog rau replication, muaj ib tug mechanism kaw lus kev ua haujlwm disk. Nyob rau hauv cov ntaub ntawv no, ib tug tshwj xeeb cheeb tsam yog faib rau kev txiav thiab sau cov hauj lwm ntawm ib tug tej yam tob nyob rau hauv lub sij hawm, los yog txwv los ntawm lub ntim ntawm lub cav, yog khaws cia. Rau qee yam khoom siv thev naus laus zis, xws li EMC RecoverPoint, muaj kev koom ua ke nrog cov software system uas tso cai rau koj txuas qee cov ntawv cim rau ib qho kev nkag nkag. Ua tsaug rau qhov no, nws muaj peev xwm thim rov qab lub xeev ntawm lub ntim (los yog tsim ib lub clone) tsis yog rau lub Plaub Hlis 23, 11 teev 59 vib nas this 13 milliseconds, tab sis mus rau lub sijhawm ua ntej "TSIS TXHOB TAG NRHO; COMMIT."

Metro pawg

Metro pawg yog ib lub tshuab uas tso cai rau koj los tsim bidirectional synchronous replication ntawm ob lub kaw lus cia nyob rau hauv ib txoj kev uas los ntawm sab nraud cov khub no zoo li ib tug cia system. Nws yog siv los tsim pawg nrog thaj chaw sib cais caj npab ntawm metro nrug (tsawg dua 100 km).

Raws li qhov piv txwv ntawm kev siv nyob rau hauv ib puag ncig virtualization, lub metrocluster tso cai rau koj los tsim cov chaw khaws ntaub ntawv nrog cov tshuab virtual, siv tau rau kev kaw los ntawm ob lub chaw khaws ntaub ntawv ib zaug. Nyob rau hauv cov ntaub ntawv no, ib pawg yog tsim nyob rau hauv lub hypervisor theem, muaj xws li hosts nyob rau hauv txawv lub cev cov ntaub ntawv chaw, txuas nrog rau cov datastore. Uas tso cai rau koj ua cov hauv qab no:

• Tag nrho automation ntawm cov txheej txheem rov qab tom qab kev tuag ntawm ib qho ntawm cov chaw zov me nyuam. Yog tias tsis muaj nyiaj ntxiv, tag nrho VMs khiav hauv qhov chaw tuag cov ntaub ntawv yuav raug rov pib dua hauv qhov seem. RTO = lub sijhawm ua haujlwm siab ua haujlwm (15 vib nas this rau VMware) + lub sijhawm thauj khoom thiab pib cov kev pabcuam.
• Kev zam kev puas tsuaj los yog hauv Lavxias, zam kev puas tsuaj. Yog tias lub zog ua haujlwm tau npaj rau hauv cov ntaub ntawv chaw 1, ces peb muaj lub sijhawm los hloov pauv tag nrho cov khoom tseem ceeb rau cov ntaub ntawv chaw 2 tsis nres ua ntej, ua ntej pib ua haujlwm.

Virtualization

Cia virtualization yog technically siv ntim los ntawm lwm qhov chaw cia li disks. Lub chaw khaws cia virtualizer tuaj yeem hloov pauv lwm tus neeg lub ntim rau cov neeg siv khoom raws li nws tus kheej, ib txhij tsom mus rau lwm qhov chaw cia khoom, lossis txawm tsim RAID los ntawm cov ntim sab nraud.
Cov neeg sawv cev classic hauv chav kawm virtualization yog EMC VPLEX thiab IBM SVC. Thiab ntawm chav kawm, lub kaw lus cia nrog kev ua haujlwm virtualization - NetApp, Hitachi, IBM / Lenovo Storwize.

Vim li cas thiaj yuav xav tau?

• Redundancy nyob rau theem cia system. Daim iav yog tsim los ntawm cov ntim, thiab ib nrab tuaj yeem yog ntawm HP 3Par, thiab lwm qhov ntawm NetApp. Thiab lub virtualizer yog los ntawm EMC.
• Tsiv cov ntaub ntawv nrog tsawg kawg downtime ntawm lub kaw lus cia los ntawm txawv manufacturers. Cia peb xav tias cov ntaub ntawv yuav tsum tau tsiv los ntawm 3Par qub, uas yuav raug sau tseg, mus rau Dell tshiab. Hauv qhov no, cov neeg siv khoom raug txiav tawm ntawm 3Par, cov ntim tau hloov pauv raws li VPLEX thiab nthuav tawm rau cov neeg siv khoom dua. Txij li thaum tsis tau hloov me ntsis ntawm lub ntim, kev ua haujlwm txuas ntxiv mus. Tus txheej txheem ntawm mirroring lub ntim rau Dell tshiab pib hauv keeb kwm yav dhau, thiab thaum ua tiav, daim iav tawg thiab 3Par yog neeg xiam.
• Lub koom haum ntawm metroclusters.

Compression / deduplication

Compression thiab deduplication yog cov thev naus laus zis uas tso cai rau koj kom txuag tau qhov chaw disk ntawm koj qhov system cia. Nws yog tsim nyog hais tam sim ntawd tias tsis yog tag nrho cov ntaub ntawv yuav raug compression thiab / los yog deduplication nyob rau hauv lub hauv paus ntsiab lus, thaum ib co hom ntawm cov ntaub ntawv yog compressed thiab deduplicated zoo dua, thiab ib co - vice versa.

Muaj 2 hom compression thiab deduplication:

Hauv - compression thiab deduplication ntawm cov ntaub ntawv thaiv tshwm sim ua ntej sau cov ntaub ntawv no rau disk. Yog li, lub kaw lus tsuas yog xam qhov hash ntawm qhov thaiv thiab muab piv rau hauv lub rooj nrog cov uas twb muaj lawm. Ua ntej, nws yog nrawm dua li tsuas yog sau rau disk, thiab thib ob, peb tsis nkim qhov chaw disk ntxiv.

Post - Thaum cov haujlwm no tau ua tiav ntawm cov ntaub ntawv kaw tseg nyob rau hauv disks. Raws li, cov ntaub ntawv yog thawj zaug sau rau disk, thiab tsuas yog tom qab ntawd cov hash yog xam thiab cov blocks tsis tsim nyog raug tshem tawm thiab cov peev txheej disk raug tso tawm.

Nws yog ib qho tsim nyog hais tias feem ntau cov neeg muag khoom siv ob hom, uas tso cai rau lawv los txhim kho cov txheej txheem no thiab yog li nce lawv cov txiaj ntsig. Feem ntau cov chaw muag khoom khaws cia muaj cov khoom siv uas tso cai rau koj los txheeb xyuas koj cov ntaub ntawv teev tseg. Cov khoom siv hluav taws xob no ua haujlwm raws li tib lub logic uas tau siv hauv qhov chaw cia khoom, yog li kev kwv yees theem ntawm kev ua haujlwm yuav zoo ib yam. Tsis tas li ntawd, nco ntsoov tias ntau tus neeg muag khoom muaj kev lees paub kev ua haujlwm uas tau cog lus tsawg kawg yog qhov ua tau zoo rau qee yam (lossis tag nrho) cov ntaub ntawv. Thiab koj yuav tsum tsis txhob tso tseg qhov kev pab cuam no, vim hais tias los ntawm kev xam lub system rau koj cov dej num, coj mus rau hauv tus account lub efficiency coefficient ntawm ib tug tshwj xeeb system, koj yuav txuag tau ntawm ntim. Nws kuj tseem tsim nyog xav txog tias cov kev pabcuam no tau tsim los rau AFA systems, tab sis ua tsaug rau kev yuav khoom me me ntawm SSDs dua li HDDs hauv cov tshuab classic, qhov no yuav txo lawv cov nqi, thiab yog tias tsis sib npaug ntawm tus nqi ntawm lub disk, ces tau ze heev rau nws.

Tus qauv

Thiab ntawm no peb tuaj rau lo lus nug yog.

"Lawv muab kuv ob qhov kev xaiv cia - ABC SuperStorage S600 thiab XYZ HyperOcean 666v4, koj xav li cas?"

Hloov mus rau "Ntawm no lawv muab kuv ob qhov kev xaiv cia - ABC SuperStorage S600 thiab XYZ HyperOcean 666v4, koj xav li cas?

Lub hom phiaj thauj khoom yog sib xyaw VMware virtual tshuab nrog ntau lawm / kuaj / tsim voj voog. Test = productive. 150 TB txhua tus nrog qhov ua tau zoo tshaj plaws ntawm 80 IOPS 000kb thaiv 8% random nkag 50/80 nyeem-sau. 20 TB rau kev txhim kho, 300 IOPS yog txaus, 50 random, 000 sau.

Productivity presumably nyob rau hauv lub metrocluster RPO = 15 feeb RTO = 1 teev, kev loj hlob nyob rau hauv asynchronous replication RPO = 3 teev, sim rau ib qhov chaw.

Yuav muaj 50TB DBMS, kev sau npe yuav zoo rau lawv.

Peb muaj Dell servers nyob txhua qhov chaw, cov qub Hitachi cia cov tshuab, lawv tsis tshua muaj peev xwm tiv tau, peb npaj yuav nce lub load los ntawm 50% ntawm qhov ntim thiab kev ua haujlwm. "

Raws li lawv hais, ib lo lus nug tsim nyog muaj 80% ntawm cov lus teb.

cov lus qhia ntxiv

Yam koj yuav tsum tau nyeem ntxiv raws li cov kws sau ntawv

Phau ntawv

• Olifer thiab Olifer "Computer networks". Phau ntawv yuav pab kom systematize thiab tej zaum zoo dua to taub yuav ua li cas cov ntaub ntawv kis nruab nrab rau IP / Ethernet cia systems ua hauj lwm
• "EMC Cov Ntaub Ntawv Cia thiab Tswj." Ib phau ntawv zoo heev ntawm cov hauv paus ntawm kev khaws cia, vim li cas, yuav ua li cas thiab yog li ntawd.

Forums thiab chats

• Kev Sib Tham Cia
• Nutanix / IT Russian Discussion Club
• VMware User Group Russia
• Russian Backup User Group

Kev pom zoo

Daim ntawv teev nqi

Tam sim no, raws li cov nqi - feem ntau, yog tias muaj cov nqi rau cov tshuab khaws cia, lawv feem ntau yog Sau tus nqi, los ntawm txhua tus neeg siv khoom tau txais tus nqi luv nqi. Qhov loj ntawm qhov luv nqi muaj ntau qhov tsis muaj, yog li nws tsuas yog tsis yooj yim sua kom twv seb tus nqi kawg uas koj lub tuam txhab yuav tau txais yam tsis tau nug tus neeg muag khoom. Tab sis tib lub sijhawm, tsis ntev los no cov qauv qis kawg tau pib tshwm hauv cov khw muag khoom siv computer tsis tu ncua, xws li, piv txwv nqi ru los yog xwm-shop.ru. Ntawm no koj tuaj yeem yuav tam sim ntawd qhov system koj xav tau ntawm tus nqi tas li, zoo li txhua yam khoom siv hauv computer.

Tab sis kuv xav kom nco ntsoov tam sim ntawd tias kev sib piv ncaj qha los ntawm TB/$ tsis yog lawm. Yog tias peb mus txog nws los ntawm qhov kev xav no, ces qhov kev daws teeb meem pheej yig tshaj plaws yuav yog JBOD + server yooj yim, uas yuav tsis muab qhov hloov pauv lossis kev ntseeg siab uas muaj qhov puv-fledged, dual-controller cia system muab. Qhov no tsis tau txhais hais tias JBOD yog qhov qias neeg thiab kev ua qias neeg qias neeg, koj tsuas yog xav tau kom nkag siab meej meej tias koj yuav siv cov tshuaj no li cas thiab rau lub hom phiaj twg koj yuav siv cov tshuaj no. Koj tuaj yeem hnov ​​​​tias tsis muaj dab tsi cuam tshuam hauv JBOD, tsuas muaj ib lub dav hlau rov qab xwb. Txawm li cas los xij, backplanes kuj qee zaum ua tsis tiav. Txhua yam tawg sai lossis tom qab.

Tag nrho

Nws yog ib qho tsim nyog los sib piv cov tshuab nrog ib leeg tsis yog los ntawm tus nqi, lossis tsis tsuas yog los ntawm kev ua tau zoo, tab sis los ntawm tag nrho ntawm tag nrho cov ntsuas.

Yuav HDD tsuas yog tias koj paub tseeb tias koj xav tau HDD. Rau cov khoom siv qis thiab cov ntaub ntawv tsis txaus ntseeg, txwv tsis pub, nws tsim nyog tig mus rau SSD qhov kev lees paub kev ua haujlwm tau zoo, uas tam sim no cov neeg muag khoom feem ntau muaj (thiab lawv yeej ua haujlwm, txawm tias nyob hauv Russia), tab sis txhua yam yog nyob ntawm daim ntawv thov thiab cov ntaub ntawv uas yuav nyob. ntawm qhov system cia.

Tsis txhob mus pheej yig. Qee zaum cov no zais ntau lub sijhawm tsis zoo, ib qho ntawm Evgeniy Elizarov tau piav qhia hauv nws cov ntawv hais txog Infortrend. Thiab qhov ntawd, thaum kawg, qhov pheej yig no tuaj yeem cuam tshuam rau koj. Tsis txhob hnov ​​qab - "tus neeg pluag them ob zaug."

Tau qhov twg los: www.habr.com