单选题
You have configured the following： RMAN> CONFIGURE DEFAULT DEVICE TYPE TO ’sbt’； new RMAN configuration parameters： CONFIGURE DEFAULT DEVICE TYPE TO ’sbt’； new RMAN configuration parameters are successfully stored RMAN> SHOW DEVICE TYPE； RMAN configuration parameters are： CONFIGURE DEVICE TYPE SBT PARALLELISM 1； # CONFIGURE DEVICE TYPE DISK PARALLELISM 1； # RMAN> CONFIGURE DEVICE TYPE SET PARALLELISM 5； RMAN> SHOW DEVICE TYPE； RMAN configuration parameters are： CONFIGURE DEVICE TYPE SBT PARALLELISM 5； CONFIGURE DEVICE TYPE DISK PARALLELISM 1； # How many channels are allocated to SBT？（）
发布日期：2022-05-17
A
0， because channels have not been defined.
B
3， as indicated by the degree of parallelism.
C
1， the default value when device is configured.
D
5， as indicated by the last parallelism command.
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