feem ntau tej zaum koj lub fwj yog nyob ntawm the OS qib - compression. Tshawb xyuas cov peev txheej ntawm koj lub cev - yog tias koj nkag mus rau MOS koj tuaj yeem siv OSWatcher los saib xyuas kev siv cov peev txheej thiab xyuas seb puas muaj teeb meem ntawm OS qib.
Kuv tuaj yeem ua kom kuv RMAN thaub qab sai dua?
Tuning RMAN Backup Performance
- Kauj Ruam 1: Tshem tawm tus nqi Parameter ntawm Channel Chaw.
- Kauj Ruam 2: Yog tias koj siv Synchronous Disk I/O, Teem DBWR_IO_SLAVES.
- Kauj Ruam 3: Yog tias koj tsis faib cov cim cim tseg, Teem LARGE_POOL_SIZE.
- Kauj Ruam 4: Kho qhov Nyeem, Sau, thiab Luam Phase.
Kuv yuav ua li cas thiaj paub yog tias kuv RMAN thaub qab ua tiav?
txhawm rau txheeb xyuas qhov feem pua ua tiav, koj tuaj yeem siv V$SESSION_LONGOPS thiab v$rman_backup_job_details, txhawm rau saib xyuas cov haujlwm RMAN tam sim no thiab cov xwm txheej ntawm kev ua tiav yav dhau los. Cov ntawv hauv qab no yuav qhia koj qhov feem pua ntawm kev ua tiav nrog rau sid thiab serial.
RMAN backup optimization yog dab tsi?
RMAN thaub qab optimization yog lwm qhov tshwj xeeb kom txo qis qhov loj meUa kom cov yam ntxwv no, RMAN BACKUP yuav hla cov ntaub ntawv thaub qab uas los hauv qee yam xwm txheej lossis zoo ib yam rau cov ntaub ntawv twb tau thaub qab.. Raws li lub npe qhia lub feature yog rau optimizing lub RMAN backups.
Kuv yuav ua li cas ntxuav kuv cov ntaub ntawv RMAN?
Txhawm rau rho tawm tag nrho cov thaub qab rau lub hom phiaj siv database: RMAN> DELETE BACKUP;
- Delete Backupset. Txhawm rau rho tawm cov txheej txheem thaub qab qhia tus lej teeb tsa xws li. 23: RMAN> DELETE BACKUPSET 23;
- NOPROMPT lo lus tseem ceeb. …
- Image Copys. …
- Cov ntaub ntawv tas sij hawm. …
- Obsolete Backups.