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YouexecutethefollowingcommandtoperformabackupbyusingRecoveryManager（RMAN）：RMAN>run{allocatechannelc1typesbtbackupdatafile1}Thecommanderrorsout.Apartoftheerrormessageisasfollows：RMAN03009：failureofallocatecommandonc1channelORA19554：errorallocatingdevice，devicetype：SBT_TAPE，devicename：Whatcouldexplainwhythestatementfailed？（）
A.sbtisnotavaliddevicetype.
B.MediaManagementLibrarywasnotloaded.
C.Thesbtdevicecannotbeusedfordatafilebackups.
D.NopathwasdefinedintheALLOCATECHANNELcommand.
E.ThechanneliscurrentlybeingusedbyanotherRMANsession.
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更多 “ YouexecutethefollowingcommandtoperformabackupbyusingRecoveryManager（RMAN）：RMANrun{allocatechannelc1typesbtbackupdatafile1}Thecommanderrorsout.Apartoftheerrormessageisasfollows：RMAN03009：failureofallocatecommandonc1channelORA19554：errorallocatingdevice，devicetype：SBT_TAPE，devicename：Whatcouldexplainwhythestatementfailed？（）A.sbtisnotavaliddevicetype.B.MediaManagementLibrarywasnotloaded.C.Thesbtdevicecannotbeusedfordatafilebackups.D.NopathwasdefinedintheALLOCATECHANNELcommand.E.ThechanneliscurrentlybeingusedbyanotherRMANsession. ” 相关考题
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