Which two statements are true about the duplexing of the backups taken by RMAN?

Which two statements are true about the duplexing of the backups taken by RMAN? (Choose two.)

Which two statements are true about the duplexing of the backups taken by RMAN? (Choose two.)

A.
It’s only supported for the backups performed on the tape

B.
It is not supported for backup operations that produce image copies

C.
Duplex backups need a parallelism for the device to be equal to number of copies

D.
Duplex backups can be performed to either disk or tape, but cannot be performed on tape and disk simultaneously

Explanation:
RMAN-06580: the copies option cannot be used with AS COPY

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Magwai

Magwai

ou can use the CONFIGURE … BACKUP COPIES command to specify how many copies of each backup piece should be created on the specified device type for the specified type of file. This type of backup is known as a duplexed backup set. The CONFIGURE settings for duplexing only affect backups of data files, control files, and archived logs into backup sets, and do not affect image copies.

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