Archival vs thaub qab | Cov ntaub ntawv archiving thiab Database archiving, Kub thaub qab thiab Txias thaub qab
Kev khaws cia thiab thaub qab yog ob lub ntsiab lus tseem ceeb ntsig txog cov ntaub ntawv. Cov thaub qab yog siv los ua cov kev daws teeb meem database. Cov ntaub ntawv khaws cia yog siv los khaws cov ntawv tshwj xeeb ntawm cov ntaub ntawv rooj lossis cov ntaub ntawv, lossis cais / txav cov ntaub ntawv, uas tsis yog siv los ntawm cov ntaub ntawv. Hauv cov ntaub ntawv database (RDBMS) cov ntaub ntawv thaub qab tau siv dav dua li kev khaws cia. Tab sis nyob rau hauv cov ntaub ntawv loj (FS), archiving yog dav siv tshaj li thaub qab, vim archiving yuav siv tau raws li ib tug zoo cov ntaub ntawv version tswj kev daws teeb meem.
Archiving
Raws li tau hais ua ntej, archiving muaj ntau hom. Cov ntaub ntawv archiving thiab database archiving. Cov ntaub ntawv archiving tsis yog kev daws teeb meem rov qab los, tab sis nws yog cov ntaub ntawv version tswj qhov system. Database archiving yog txav ib feem ntawm cov ntaub ntawv, uas yog tsis nquag siv, los ntawm cov ntaub ntawv nquag siv. Cov ntaub ntawv khaws tseg no tseem ceeb heev rau kev siv yav tom ntej. Cov ntaub ntawv khaws tseg tsis raug txav mus rau ib qho kev tshaj tawm lossis qhov system. Yog hais tias lub kaw lus yog ib tug database, tom qab cov ntaub ntawv archiving cov ntaub ntawv archived tseem nyob rau hauv tib lub database. (Hauv ORACLE databases, muaj ib hom hu ua ARCHIVELOG hom. Hauv hom no, ORACLE server archives tag nrho cov ntaub ntawv hloov pauv raws li cov ntaub ntawv teev cia.)
Backups
Cov thaub qab yog siv los ua cov ntaub ntawv rov qab daws teeb meem. Qhov ntawd txhais tau tias; Nws yog ib qho tseem ceeb kom rov qab tau cov ntaub ntawv thaum lub database corrupted los yog thaum lub database server raug puas tsuaj. Qhov tseeb, cov thaub qab no yog luam ntawm cov ntaub ntawv qub. Muaj ntau hom kev thaub qab. Kub thaub qab thiab txias thaub qab yog ob hom tseem ceeb. Cov thaub qab kub tau muab coj los siv thaum cov ntaub ntawv siv tau, thiab cov thaub qab txias tau muab thaum lub database tsis raug siv. Ib txoj hauv kev zoo thaub qab yuav tsum muaj peev xwm rov qab tau sai dua thiab cov ntaub ntawv poob yuav tsum tau txo qis (zero data poob). Cov ntaub ntawv thaub qab yuav tsum yog luam rau cais cov disks lossis cov kab xev los siv hauv kev puas tsuaj.
Qhov txawv ntawm Archiving thiab Backups yog dab tsi?
1. Archiving tsis yog kev daws teeb meem rov qab los. Tab sis kev thaub qab yog rau cov ntaub ntawv zoo rov qab los ntawm tib neeg yuam kev, cov ntaub ntawv thaiv kev noj nyiaj txiag, kho vajtse tsis ua haujlwm thiab kev puas tsuaj ntuj tsim.
2. Restore thiab rov qab tsis tas yuav siv cov ntaub ntawv khaws tseg. Tab sis ua kom rov qab thiab rov qab yog qhov tseem ceeb los siv cov ntaub ntawv thaub qab.
3. Cov ntaub ntawv kaw lus archiving tuaj yeem siv los ua ib txoj hauv kev tswj hwm, thiab. Tab sis kev thaub qab tsis tuaj yeem siv los ua tus tswj hwm version.
4. Cov ntaub ntawv khaws tseg yog tsim nyog rau kev tshaj tawm cov xwm txheej thiab cov ntaub ntawv thaub qab tsis siv rau kev tshaj tawm.
5. Archiving yuav khaws tag nrho cov ntaub ntawv muaj. Tab sis hauv kev thaub qab, cov neeg siv yuav txiav txim siab qhov tsim nyog thaub qab thiab tshem tawm cov thaub qab uas tsis muaj lossis tsis xav tau.
