问题:
Examine this syntax which allocates channels during a parallel image copy:
RMAN> CONFIGURE DEVICE TYPE disk parallelism 4:
2> COPY
3> datafile 1 TO ‘/BACKUP/datafile1.dbf’,
4> datafile 2 TO ‘/BACKUP/datafile2.dbf’,
5> datafile 3 TO ‘/BACKUP/datafile3.dbf;
RMAN>COPY
2> datafile 4 TO ‘/BACKUP/datafile4.dbf’;
How many channels are used?()
A . 0
B . 1
C . 3
D . 4
Examine this syntax which allocates channels during a parallel image copy:
RMAN> CONFIGURE DEVICE TYPE disk parallelism 4:
2> COPY
3> datafile 1 TO ‘/BACKUP/datafile1.dbf’,
4> datafile 2 TO ‘/BACKUP/datafile2.dbf’,
5> datafile 3 TO ‘/BACKUP/datafile3.dbf;
RMAN>COPY
2> datafile 4 TO ‘/BACKUP/datafile4.dbf’;
How many channels are used?()
● 参考解析
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