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Oracle RMAN Interview Question:
What is auxiliary channel in RMAN? When do you need this?
Submitted by: AdministratorAn auxiliary channel is a link to auxiliary instance. If you do not have automatic channels configured, then before issuing the DUPLICATE command, manually allocate at least one auxiliary channel within the same RUN command.
When a Duplicate Database created or tablespace point in time recovery is performed Auxiliary database is used. this database can either on the same host or a different host.
RUN
{
ALLOCATE AUXILIARY CHANNEL ch1 DEVICE TYPE sbt;
ALLOCATE AUXILIARY CHANNEL aux1 DEVICE TYPE DISK;
ALLOCATE AUXILIARY CHANNEL aux2 DEVICE TYPE DISK;
ALLOCATE AUXILIARY CHANNEL aux3 DEVICE TYPE DISK;
.
.
.
DUPLICATE TARGET DATABASE TO dupdb;
}
Submitted by: Administrator
When a Duplicate Database created or tablespace point in time recovery is performed Auxiliary database is used. this database can either on the same host or a different host.
RUN
{
ALLOCATE AUXILIARY CHANNEL ch1 DEVICE TYPE sbt;
ALLOCATE AUXILIARY CHANNEL aux1 DEVICE TYPE DISK;
ALLOCATE AUXILIARY CHANNEL aux2 DEVICE TYPE DISK;
ALLOCATE AUXILIARY CHANNEL aux3 DEVICE TYPE DISK;
.
.
.
DUPLICATE TARGET DATABASE TO dupdb;
}
Submitted by: Administrator
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