backup and restore using ontape

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1、Module14BackupandRestoreUsingOntapeBackupandRestoreUsingOntape11-200314-1©2001,2003InternationalBusinessMachinesCorporationObjectivesAttheendofthismodule,youwillbeableto:®Configureyourservertouseontapeforbackupandrestore.®Performaserverbackupusingontape®Backuplogicallogfilesusingontap

2、e®Performawarmrestoreusingontape®Performacoldrestoreusingontape14-214-2BackupandRestoreUsingOntapeUsingtheOntapeUtility¢Backupatthesystemlevelonly¢Supportforincrementalbackups¢Separatedevicesforserverbackupsandlogicallogbackups¢Automaticorcontinuouslogicallogbackupoptions¢Restoreatthe

3、systemordbspacelevel14-3Theontapeutilityhasmanyfeaturesthatfacilitatethebackupandrestoreofyourserverandthebackupofyourlogicallogs.Ontapeprovidesthefollowingfeatures:¢Backupoftheserversystemsothatintheeventofafailure,youcanrecreatetheserverfromthebackups.¢Incrementalbackupsthatallowyou

4、theflexibilitytoplanabackupschedulethatmeetsyourserveradministrationneeds.¢Definitionofseparatetapedevicessoyoucanperformlogicallogbackupsatthesametimeyouperformsystembackups.¢Optionstoeithermanuallyperformbackupsoflogicallogfiles,ortoperformacontinuousbackupoflogfilesastheybecomefull

5、.¢Abilitytoperformfullrestoresoftheserverorrestoresatthedbspacelevel.BackupandRestoreUsingOntape14-3ChoosingaDeviceforLogBackupsPointstoconsiderwithontape:®Onlytapedevicesshouldbeused®Useseparatedevicesfordbspaceandlogicallogbackupstosimplifyscheduling®Ifatapedeviceisslow,thelogicallo

6、gmightfillupfasterthanitcanbecopiedtotape14-4Whenyouarechoosingalogicallogbackupdevice,youshouldconsiderthefollowingissues:¢Ontapewasdesignedtotakeadvantageofthefeaturesoftapedevices.Whileontapecansuccessfullyperformbackupsandrestoresofdbspacesandlogicallogfilestodiskfiles(youwillbedo

7、ingthisinaclassexercise),itisnotdesignedtomanagethesefiles.¢Ifthelogicallogdevicediffersfromthedbspacebackupdevice,youcanplanyourbackupswithoutconsideringthecompetingneedsofthedbspacebackupschedule.¢Ifyourtapedeviceisslow,thelogicallogmightfillupfasterthanitcanbecopiedtotape.Inthiscas

8、e,you