Cov txheej txheem:
Video: SQL failover pawg ua haujlwm li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Txhais: A faiv fab pawg hauv paus muab koj lub peev xwm kom muaj tag nrho cov ntaub ntawv rau a SQL ntawv Tus neeg rau zaub mov piv txwv tau nruab rau hauv ib yam dab tsi zoo li qhov sib koom uas tuaj yeem nkag tau los ntawm cov servers sib txawv. Nws yuav ib txwm muaj tib lub npe piv txwv, SQL ntawv Cov hauj lwm tus neeg sawv cev, Txuas Servers thiab Logins nyob qhov twg koj nqa nws.
Tom qab ntawd, ib tug kuj yuav nug, ua li cas tsis ua hauj lwm pawg?
A faiv fab pawg yog ib pawg ntawm cov computers ywj siab uas ua haujlwm ua ke kom muaj thiab scalability ntawm pawg luag hauj lwm (yav tas los hu ua pawg kev siv thiab kev pabcuam). Yog ib los yog ntau tshaj ntawm cov pawg nodes poob, lwm cov nodes pib muab kev pab (ib txoj kev hu ua ua tsis tiav ).
Kuj Paub, SQL failover pawg yog dab tsi? SQL ntawv Server ua tsis taus pa yog tsim los ntawm pab pawg ntawm cov servers uas khiav pawg enabled daim ntawv thov nyob rau hauv ib txoj kev tshwj xeeb kom txo downtime. A ua tsis tiav yog ib qho txheej txheem uas tshwm sim yog tias ib qho ntawm qhov sib tsoo, lossis ua tsis tau thiab lwm tus yuav siv sij hawm thiab rov pib dua daim ntawv thov tsis muaj kev cuam tshuam tib neeg.
Tsis tas li ntawd, SQL pawg ua haujlwm li cas?
Ib Microsoft SQL ntawv Server Pawg yog tsis muaj dab tsi ntau tshaj li kev sau los ntawm ob lossis ntau lub cev servers nrog kev nkag mus rau qhov sib koom ua ke uas muab cov khoom siv disk xav tau los khaws cov ntaub ntawv database. Cov servers no raug xa mus rau "nodes".
Kuv yuav teeb tsa ib pawg tsis ua haujlwm hauv SQL li cas?
Txhawm rau nruab ib qho tshiab SQL Server failover pawg siv Integrated Install nrog Ntxiv Node
- Ntxig lub SQL Server installation media, thiab los ntawm lub hauv paus nplaub tshev, ob-nias Setup.exe.
- Lub Installation Wizard pib lub SQL Server Installation Center.
- Qhov System Configuration Checker ua haujlwm nrhiav pom ntawm koj lub computer.
Pom zoo:
Dab tsi yog qhov sib txawv ntawm pab pawg cov ntaub ntawv thiab cov ntaub ntawv tsis yog pawg?
Ob leeg yog cov ntaub ntawv muaj txiaj ntsig ntawm cov ntaub ntawv tab sis qhov sib txawv ntawm lawv yog cov ntaub ntawv tsis muaj ntaub ntawv yog rawdata. Qhov no txhais tau hais tias nws nyuam qhuav tau sau tab sis tsis txheeb rau hauv ib pawg lossis cov chav kawm. Ntawm qhov tod tes, groupeddata yog cov ntaub ntawv uas tau teeb tsa ua pawg los ntawm cov ntaub ntawv nyoos
Yuav ua li cas pawg ua haujlwm hauv SQL Server?
Ib pawg suav nrog ob lossis ntau lub cev servers, hu ua nodes; pom zoo configuration zoo tib yam. Yog hais tias SQL neeg rau zaub mov piv txwv ntawm lub active node ua tsis tau tejyam, lub passive node ua lub active node thiab pib khiav lub SQL neeg rau zaub mov ntau lawm workload nrog ib co tsawg heev poob downtime
Dab tsi yog DHCP failover pawg?
DHCP kev ua tsis tiav yog ib txoj hauv kev uas ob lub DHCP servers tau teeb tsa los tswj tib lub pas dej ntawm qhov chaw nyob, kom lawv tuaj yeem faib cov khoom xa mus rau lub pas dej ua ke thiab muab cov thaub qab rau ib leeg thaum muaj kev sib txuas hauv network
SQL Server failover pawg installation yog dab tsi?
Txhawm rau nruab lossis hloov kho SQL Server tsis ua haujlwm pawg, koj yuav tsum khiav qhov kev pab cuam teeb tsa ntawm txhua qhov ntawm pawg tsis ua haujlwm. Cov nodes ntawm cov subnets sib txawv - Qhov chaw nyob IP chaw nyob yog teem rau LOSSIS thiab qhov kev teeb tsa no yog hu ua SQL Server multi-subnet failover pawg configuration
Lub luag haujlwm ntawm pawg pawg yog dab tsi?
Ua haujlwm nrog Lub Luag Haujlwm hauv Failover Cluster Manager. Txhua lub tshuab virtual muaj ntau tau suav tias yog lub luag haujlwm hauv Failover Clustering terminology. Lub luag haujlwm suav nrog cov khoom tiv thaiv nws tus kheej nrog rau cov txheej txheem siv los ntawm Failover Clustering rau kev teeb tsa thiab lub xeev cov ntaub ntawv hais txog cov khoom tiv thaiv