large pool Configration

Hi good morning,,
if we didn't set the large pool value then RMAN will work or not ? if its work 
then where the memory is allocated for RMAN , definitely it demand some memory 
space in the memory memory  where it get  , 

> if we didn't set the large pool value then RMAN will work or not ?

Yes RMAN will still work.


> if its work then where the memory is allocated for RMAN , definitely it
> demand some memory space in the memory memory  where it get

It depends on the configuration -- it could be from SHARED POOL or PGA memory.


The best thing to do is to setup a TEST box similar to production and to play 
with the number of backup CHANNELs.

Don't mess with anything else -- manipulating the number of CHANNELs is 
sufficient enough to throttle RMAN's performance.  Test it out you'll see that 
it works.

The goal is to give RMAN enough horsepower of the server to complete the backup 
in reasonable amount of time and at the same time NOT to compromise response 
times for the end-users.

Scheduling backups during off hours is also advisable ...