Hi friends,
I need to confirm my understanding about the following two issues, prior to changing them in production database;

1. For example, consider a table has been partitioned in to 2 partitions based on a range(each of them in a separate tablespace TS1 and TS2)and each partition is sub divided into 256 sub-partitions based on a hash. TS1 has INITIAL of 4M. Now, whether Oracle allocates only 4M as initial or 4 times 256?

2. The rollback segments on the production db have not been sized properly. I wanted to resize them. For this, I thought the best way is to create new rollback segments of required size, bring them online, offline the old rollback segments and then drop them. And include the new names in init.ora file.
Is this procedure okay, or there is a better way?

Thanks
manjunath