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  • OCP-1Z0-053-V12.02-343题

     

    343.What is the impact of the following backup if it exceeds the duration allowance? (Choose all that

    apply.)Backup as compressed backupset duration 2:00 partial minimize load database ;

    A. The entire backup will fail. It will not be usable for recovery.

    B. The entire backup will fail, but any datafile successfully backed up will be usable for recovery.

    C. If this backup fails, subsequent backups will prioritize datafiles not backed up.

    D. If this backup fails, an error will be raised and any other commands will not be executed.

    E. If this backup fails, no error will be raised and any other commands will be executed.

    Answer: B

    答案解析:

    参考:http://docs.oracle.com/cd/E11882_01/backup.112/e10643/rcmsynta007.htm#RCMRF90032



     MINIMIZE
       {LOAD | TIME}
    With disk backups, you can use MINIMIZE TIME run the backup at maximum speed (default), or MINIMIZE LOADto slow the rate of backup to lessen the load on the system. With MINIMIZE LOAD the backup takes the full specified duration.

    If you specify TIME, then file most recently backed up is given the lowest priority to back up. This scheduling mechanism provides for the eventual complete backup of the database during successive backup windows, as different data files are backed up in round-robin fashion.

       PARTIAL With the PARTIAL option, the command is considered to have completed successfully and no error is reported by RMAN even if the whole backup is not completed in the specified duration.

    Without the PARTIAL option, the backup command is considered to have failed if it does not complete in the specified duration, and RMAN reports an error. If the backup command is part of a RUN block, then subsequent commands in the RUN block do not execute.

    Whether PARTIAL is used or not, all backup sets completed before the backup is interrupted are retained and can be used in RESTORE and RECOVER operations.

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  • 原文地址:https://www.cnblogs.com/hzcya1995/p/13316381.html
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