Video: Dab tsi yog pawg hauv SQL Server?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Dab tsi yog Ua pawg ? Ib Microsoft SQL Server Cluster tsis muaj dab tsi ntau tshaj li kev sau ntawm ob lossis ntau lub cev servers nrog zoo tib yam nkag mus rau kev sib koom ua ke uas muab cov khoom siv disk xav tau los khaws cov ntaub ntawv database. Cov no servers hu ua "nodes".
Ib yam li ntawd, koj tuaj yeem nug, dab tsi yog pawg hauv database?
Database Clustering yog cov txheej txheem ntawm kev sib txuas ntau dua ib lub servers lossis piv txwv txuas ib leeg database . Qee lub sij hawm ib tus neeg rau zaub mov yuav tsis tsim nyog los tswj tus nqi ntawm cov ntaub ntawv lossis tus naj npawb ntawm kev thov, uas yog thaum Cov Ntaub Ntawv Pawg yog xav tau.
Qhov thib ob, Cluster Server yog dab tsi thiab nws ua haujlwm li cas? Failover Ua pawg hauv Windows Server Ib qho kev poob qis 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). Cov pawg servers (hu ua nodes) txuas nrog lub cev cables thiab los ntawm software.
Yog li ntawd, dab tsi yog qhov ua tsis tiav pawg hauv SQL Server?
Ib Windows Server Failover Cluster (WSFC) yog ib pawg neeg ywj pheej servers uas ua hauj lwm ua ke los ua kom muaj cov ntawv thov thiab cov kev pabcuam. SQL Server 2019 (15. x) siv qhov zoo ntawm WSFC cov kev pabcuam thiab kev muaj peev xwm los txhawb nqa Ib txwm Nyob rau pab pawg thiab SQL Server Failover Cluster Piv txwv.
Dab tsi yog SQL Server network lub npe hauv pawg?
Cov SQL Server Network Name yog siv los txheeb xyuas qhov ua tsis tiav pawg ntawm network . Qhov no tau hu ua virtual SQL Server npe nyob rau hauv yav dhau los versions ntawm SQL Server ua tsis tiav pawg . Thaum koj txuas rau SQL Server siv qhov no npe , qhov no yuav txuas mus rau qhov tam sim no online node.
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
Dab tsi yog qhov txawv ntawm cov pab pawg thiab cov pab pawg tawm?
Nyob rau hauv sociology thiab kev puas siab puas ntsws, ib pab pawg neeg yog ib pawg neeg sib raug zoo uas tus neeg puas siab puas ntsws qhia tias yog ib tug tswv cuab. Los ntawm qhov sib txawv, ib pab pawg tawm yog ib pawg neeg sib raug zoo uas ib tus neeg tsis txheeb xyuas
Dab tsi yog qhov txawv ntawm ib pawg kev ruaj ntseg thiab pab pawg faib khoom?
Pawg Kev Ruaj Ntseg-Cov pab pawg siv los tiv thaiv kev nkag mus rau hauv kev siv network los ntawm kev tso cai; lawv kuj tuaj yeem siv los xa email. Distribution Groups-Cov pab pawg uas tsuas yog siv tau los xa email xwb; lawv muaj kev koom tes ruaj khov uas tsis tuaj yeem siv los nkag mus rau cov peev txheej network
Pawg pawg yog dab tsi?
Hom Quorum Modes Quorum Mode Description Node Feem Ntau • Tsuas yog cov nodes hauv pawg muaj kev pov npav • Pawg tswj hwm thaum ntau tshaj ib nrab ntawm cov nodes nyob online Node thiab Disk Feem ntau • Cov nodes hauv pawg thiab cov pov thawj disk muaj pov npav • Pawg yog khaws cia thaum ntau tshaj li ib nrab ntawm cov pov npav online
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