Cov firmware version twg yog qhov "tsawg" thiab "ua haujlwm"? Yog tias lub kaw lus cia tau lees paub qhov ua txhaum cai ntawm 99,9999%, qhov ntawd puas txhais tau tias nws yuav ua haujlwm tsis muaj kev cuam tshuam txawm tias tsis muaj software hloov tshiab? Los yog, ntawm qhov tsis sib xws, kom tau txais kev zam txim siab tshaj plaws, koj yuav tsum tau nruab qhov tseeb firmware? Peb yuav sim teb cov lus nug no raws li peb qhov kev paub dhau los.
Me taw qhia
Peb txhua tus nkag siab tias txhua tus qauv ntawm software, yog nws lub operating system lossis tus tsav tsheb rau lub cuab yeej, feem ntau muaj qhov tsis xws luag / kab laum thiab lwm yam "tus yam ntxwv" uas yuav tsis "tshem" kom txog thaum kawg ntawm cov khoom siv lub neej, lossis "qhib" tsuas yog nyob rau hauv tej yam kev mob. Tus naj npawb thiab qhov tseem ceeb ntawm cov nuances no nyob ntawm qhov nyuaj (functionality) ntawm software thiab qhov zoo ntawm kev sim thaum nws txhim kho.
Feem ntau, cov neeg siv nyob rau ntawm "firmware los ntawm lub Hoobkas" (tus nto moo "nws ua haujlwm, yog li tsis txhob cuam tshuam nrog nws") lossis ib txwm nruab qhov tseeb version (hauv lawv txoj kev nkag siab, qhov tseeb txhais tau tias ua haujlwm tshaj plaws). Peb siv txoj hauv kev sib txawv - peb saib cov ntawv tso tawm rau txhua yam siv cov khoom siv thiab ua tib zoo xaiv cov firmware tsim nyog rau txhua daim khoom.
Peb tuaj rau qhov xaus, raws li lawv hais, nrog kev paub. Siv peb qhov piv txwv ntawm kev ua haujlwm, peb yuav qhia koj tias vim li cas cov lus cog tseg 99,9999% kev cia siab ntawm cov tshuab khaws cia txhais tau tias tsis muaj dab tsi yog tias koj tsis saib xyuas software hloov tshiab thiab piav qhia. Peb cov ntaub ntawv tsim nyog rau cov neeg siv khoom siv cia los ntawm txhua tus neeg muag khoom, vim tias qhov xwm txheej zoo sib xws tuaj yeem tshwm sim nrog kho vajtse los ntawm txhua qhov chaw tsim khoom.
Xaiv qhov System Cia Tshiab
Thaum kawg ntawm xyoo tas los, qhov kev nthuav qhia cov ntaub ntawv khaws cia tau ntxiv rau peb cov txheej txheem: tus qauv junior los ntawm IBM FlashSystem 5000 kab, uas thaum lub sijhawm yuav khoom hu ua Storwize V5010e. Tam sim no nws tau muag hauv lub npe FlashSystem 5010, tab sis qhov tseeb nws yog tib lub hauv paus kho vajtse nrog tib Spectrum Virtualize sab hauv.
Lub xub ntiag ntawm kev tswj hwm kev sib koom ua ke yog, los ntawm txoj kev, qhov sib txawv tseem ceeb ntawm IBM FlashSystem. Rau cov qauv ntawm cov tub ntxhais hluas series, nws xyaum tsis txawv ntawm cov qauv ntawm cov khoom tsim tau ntau dua. Xaiv ib tus qauv tshwj xeeb tsuas yog muab cov khoom siv tsim nyog, cov yam ntxwv uas ua rau nws muaj peev xwm siv tau ib qho los yog lwm qhov kev ua haujlwm lossis muab qib siab dua ntawm scalability. Lub software txheeb xyuas qhov kho vajtse thiab muab qhov tsim nyog thiab ua haujlwm txaus rau lub platform no.
IBM FlashSystem 5010
Luv luv txog peb cov qauv 5010. Qhov no yog qhov nkag-theem dual-controller thaiv qhov system cia. Nws tuaj yeem ua raws li NLSAS, SAS, SSD disks. NVMe kev tso kawm tsis muaj nyob rau hauv nws, txij li cov qauv khaws cia no tau muab tso rau los daws cov teeb meem uas tsis xav tau kev ua haujlwm ntawm NVMe drives.
Lub kaw lus cia tau yuav los ua kom haum rau cov ntaub ntawv khaws cia lossis cov ntaub ntawv uas tsis nkag mus tau ntau zaus. Yog li ntawd, tus txheej txheem txheej txheem ntawm nws cov functionality yog txaus rau peb: Tiering (Easy Tier), nyias muab. Kev ua tau zoo ntawm NLSAS disks ntawm qib 1000-2000 IOPS kuj yog qhov txaus siab rau peb.
Peb qhov kev paub - yuav ua li cas peb tsis hloov kho lub firmware raws sijhawm
Tam sim no hais txog qhov hloov tshiab software nws tus kheej. Thaum lub sij hawm ntawm kev yuav khoom, lub kaw lus twb muaj me ntsis outdated version ntawm Spectrum Virtualize software, uas yog, 8.2.1.3.
Peb tau kawm cov lus piav qhia firmware thiab npaj qhov hloov tshiab rau 8.2.1.9. Yog tias peb tau ua haujlwm tau zoo me ntsis, tsab xov xwm no yuav tsis muaj - kab laum yuav tsis tshwm sim ntawm lub firmware tshiab dua. Txawm li cas los xij, rau qee qhov laj thawj, qhov hloov tshiab ntawm cov kab ke no tau raug ncua.
Raws li qhov tshwm sim, qhov hloov tshiab me ntsis qeeb ua rau ib daim duab tsis zoo siab heev, xws li hauv cov lus piav qhia ntawm qhov txuas: .
Yog lawm, nyob rau hauv lub firmware ntawm cov version ntawd lub npe hu ua APAR (Tshwj xeeb Program Analysis Report) HU02104 yog qhov cuam tshuam. Nws tshwm raws li hauv qab no. Hauv kev thauj khoom, nyob rau hauv qee qhov xwm txheej, lub cache pib dhau, tom qab ntawd lub kaw lus nkag mus rau hauv kev tiv thaiv hom, uas nws cuam tshuam I / O rau lub pas dej. Nyob rau hauv peb rooj plaub, nws zoo li disconnecting 3 disks rau ib pab pawg neeg RAID nyob rau hauv RAID 6 hom, lub disconnection tshwm sim rau 6 feeb. Tom ntej no, kev nkag mus rau Volumes hauv Pas Dej tau rov qab los.
Yog tias ib tus neeg tsis paub txog cov qauv thiab npe ntawm cov khoom siv logic hauv cov ntsiab lus ntawm IBM Spectrum Virtualize, tam sim no kuv yuav piav qhia luv luv.
Structure ntawm cia system logical ntsiab
Disk tau sau rau hauv pawg hu ua MDisk (Managed Disk). MDisk tuaj yeem yog RAID classic (0,1,10,5,6) lossis ib qho virtualized - DRAID (Distributed RAID). Siv DRAID tso cai rau koj kom ua tau zoo ntawm cov array, vim ... Tag nrho cov disks hauv pab pawg yuav raug siv, thiab rov tsim lub sijhawm yuav raug txo, vim qhov tseeb tias tsuas yog qee qhov blocks yuav tsum tau rov qab los, thiab tsis yog tag nrho cov ntaub ntawv los ntawm qhov ua tsis tiav disk.
Kev faib tawm cov ntaub ntawv thaiv thoob plaws disks thaum siv Distributed RAID (DRAID) hauv RAID-5 hom.
Thiab daim duab no qhia txog qhov laj thawj ntawm yuav ua li cas DRAID rov tsim ua haujlwm thaum muaj ib qho tsis ua haujlwm disk:
Logic ntawm DRAID rov tsim dua thaum ib lub disk tsis ua haujlwm
Tom ntej no, ib los yog ntau tshaj MDisks tsim ib tug thiaj li hu ua Pas dej. Hauv tib lub pas dej, nws tsis pom zoo kom siv MDisk nrog ntau qib RAID / DRAID ntawm cov disks ntawm tib hom. Peb yuav tsis mus rau qhov no tob heev, vim ... peb npaj yuav npog qhov no hauv ib qho ntawm cov kab lus hauv qab no. Zoo, qhov tseeb, Pas dej tau muab faib ua Volumes, uas tau nthuav tawm siv ib lossis lwm qhov thaiv kev nkag mus rau cov tswv.
Yog li, peb, raws li qhov tshwm sim ntawm qhov xwm txheej tau piav qhia hauv TIAB SA 02104, vim yog qhov tsis ua tiav ntawm peb lub disks, MDisk tsis ua haujlwm, uas, dhau los, ua rau tsis ua haujlwm ntawm lub pas dej thiab cov Volumes sib thooj.
Vim tias cov tshuab no ntse heev, lawv tuaj yeem txuas nrog IBM Storage Insights cloud-based monitoring system, uas cia li xa cov kev pabcuam rau IBM txhawb yog tias muaj teeb meem tshwm sim. Ib daim ntawv thov raug tsim thiab IBM cov kws tshaj lij nyob deb ua qhov kev kuaj mob thiab tiv tauj tus neeg siv lub cev.
Ua tsaug rau qhov no, qhov teeb meem tau daws sai heev thiab cov lus pom zoo tau txais los ntawm cov kev pabcuam txhawb nqa los hloov kho peb cov kab ke rau yav dhau los xaiv firmware 8.2.1.9, uas lub sijhawm ntawd twb tau kho lawm. Nws lees paub .
Cov txiaj ntsig thiab peb cov lus pom zoo
Raws li cov lus hais mus: "txhua yam zoo uas xaus zoo." Cov kab mob hauv lub firmware tsis ua teeb meem loj - cov servers tau rov qab los sai li sai tau thiab tsis muaj cov ntaub ntawv poob. Qee cov neeg siv khoom yuav tsum rov pib dua lub tshuab virtual, tab sis feem ntau peb tau npaj rau qhov tshwm sim tsis zoo, vim peb ua txhua hnub thaub qab ntawm tag nrho cov txheej txheem thiab cov neeg siv tshuab.
Peb tau txais kev lees paub tias txawm tias cov kab ke txhim khu kev qha nrog 99,9999% tau cog lus tias yuav tsum tau saib xyuas thiab kho raws sijhawm. Raws li qhov xwm txheej, peb tau kos ntau cov lus xaus rau peb tus kheej thiab qhia peb cov lus pom zoo:
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Nws yog ib qho tsim nyog yuav tsum tau saib xyuas qhov kev tso tawm tshiab, kawm Cov Lus Qhia Tshaj Tawm rau kev kho cov teeb meem tseem ceeb, thiab ua tiav cov phiaj xwm hloov tshiab raws sijhawm.
Qhov no yog ib lub koom haum thiab txawm tias pom tseeb taw tes, uas, nws yuav zoo li, tsis tsim nyog tsom rau. Txawm li cas los xij, ntawm qhov "theem av" koj tuaj yeem dawm yooj yim heev. Qhov tseeb, nws yog lub sijhawm no uas ntxiv cov teeb meem tau piav qhia saum toj no. Ua tib zoo saib xyuas thaum kos cov kev cai hloov tshiab thiab saib xyuas kev ua raws li lawv tsis txhob ua tib zoo. Cov ntsiab lus no cuam tshuam ntau ntxiv rau lub tswv yim ntawm "kev qhuab qhia".
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Nws yog ib txwm zoo kom lub kaw lus nrog qhov tseeb software version. Ntxiv mus, tam sim no tsis yog ib qho uas muaj tus lej loj dua, tab sis yog qhov uas muaj hnub tso tawm tom qab.
Piv txwv li, IBM khaws tsawg kawg ob lub software tso tawm mus rau hnub tim rau nws cov kab ke khaws cia. Thaum lub sijhawm sau ntawv no, cov no yog 8.2 thiab 8.3. Hloov tshiab rau 8.2 tawm ua ntej. Ib qho kev hloov tshiab zoo sib xws rau 8.3 feem ntau yog tso tawm nrog qeeb me ntsis.
Tso tawm 8.3 muaj ntau qhov ua tau zoo, piv txwv li, muaj peev xwm nthuav dav MDisk (hauv DRAID hom) los ntawm kev ntxiv ib lossis ntau dua disks tshiab (qhov no tau tshwm sim txij li version 8.3.1). Qhov no yog ib qho yooj yim functionality, tab sis nyob rau hauv 8.2, hmoov tsis, tsis muaj xws li feature.
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Yog tias nws tsis tuaj yeem hloov kho rau qee qhov laj thawj, tom qab ntawd rau versions ntawm Spectrum Virtualize software ua ntej versions 8.2.1.9 thiab 8.3.1.0 (qhov twg kab laum tau piav qhia saum toj no cuam tshuam), txhawm rau txo qhov kev pheej hmoo ntawm nws tshwm sim, IBM kev txhawb nqa kev pom zoo. txwv qhov kev ua tau zoo ntawm lub pas dej ua ke, raws li pom hauv daim duab hauv qab no (daim duab tau coj los hauv Russified version ntawm GUI). Tus nqi ntawm 10000 IOPS yog qhia ua piv txwv thiab raug xaiv raws li tus yam ntxwv ntawm koj lub cev.
Limiting IBM cia kev ua tau zoo
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Nws yog ib qho tsim nyog kom suav cov load ntawm lub tshuab cia thiab tsis txhob overloading. Txhawm rau ua qhov no, koj tuaj yeem siv IBM qhov loj me (yog tias koj nkag mus rau nws), lossis kev pab ntawm cov neeg koom tes, lossis cov khoom siv thib peb. Nws yog ib qho tseem ceeb kom nkag siab txog qhov profile ntawm qhov chaw cia khoom, vim tias Kev ua tau zoo hauv MB / s thiab IOPS sib txawv heev nyob ntawm yam tsawg kawg ntawm cov kev txwv hauv qab no:
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hom kev ua haujlwm: nyeem lossis sau,
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ua haujlwm block loj,
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feem pua ββntawm kev nyeem thiab sau cov haujlwm hauv tag nrho I / O kwj.
Tsis tas li ntawd, qhov ceev ntawm kev khiav hauj lwm yog cuam tshuam los ntawm yuav ua li cas cov ntaub ntawv blocks nyeem: sequentially los yog random order. Thaum ua haujlwm ntau cov ntaub ntawv nkag mus rau ntawm daim ntawv thov sab, muaj lub tswv yim ntawm kev ua haujlwm nyob. Nws tseem pom zoo kom coj qhov no mus rau hauv tus account. Tag nrho cov no tuaj yeem pab kom pom tag nrho cov ntaub ntawv los ntawm cov txee ua haujlwm ntawm OS, qhov system cia, servers / hypervisors, nrog rau kev nkag siab txog kev ua haujlwm ntawm cov ntawv thov, DBMSs thiab lwm yam "cov neeg siv khoom" ntawm cov khoom siv disk.
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Thiab thaum kawg, nco ntsoov kom muaj cov thaub qab mus txog hnub thiab ua haujlwm. Lub sijhawm thaub qab yuav tsum tau teeb tsa raws li qhov tsim nyog tau txais RPO qhov tseem ceeb rau kev lag luam, thiab kev tshawb xyuas kev ncaj ncees ntawm cov thaub qab yuav tsum raug txheeb xyuas (qee ob peb tus neeg muag khoom software backup tau siv cov ntaub ntawv pov thawj hauv lawv cov khoom) kom ntseeg tau tias muaj txiaj ntsig RTO.
Ua tsaug rau koj nyeem kom tag.
Peb npaj tau teb koj cov lus nug thiab cov lus pom hauv cov lus pom. Kuj, nyob rau hauv uas peb tuav cov kev tshaj tawm tsis tu ncua (txo nqi ntawm IaaS thiab muab khoom plig rau cov lej tshaj tawm txog 100% ntawm VPS), sau cov xov xwm nthuav thiab tshaj tawm cov ntawv tshiab ntawm Habr blog.
Tau qhov twg los: www.hab.com