Questions on Oracle Management Packs

Question

1. What is the difference between MANAGEMENT PACK and CONFIGURATION MANAGEMENT PACK (Oracle versions 10g & 11g)
2. If one uses CONFIGURATION must one also use MANAGEMENT?
3. Is there a view that tells if either of these are actually being used? (No, I dont mean using the capability in Grid Control/EM to turn them on or off)

Answer 1

5. Do Extent also span files(ORA files) i.e. 'Table can span across ORA files' whether it means part of a Extent may present in one Data file and other part in another data file.
A table Extents can span into multiple datafiles. But, a single extent can't span into multiple datafiles.
4. How are Bitmap used to track used and Free space in Locally managed TablespacesA Locally Managed Tablespace is a tablespace that manages its own extents maintaining a bitmap in each datafile to keep track of the free or used status of blocks in that datafile. Each bit in the bitmap corresponds to a block or a group of blocks. When the extents are allocated or freed for reuse, Oracle changes the bitmap values to show the new status of the blocks. These changes do not generate rollback information because they do not update tables in the data dictionary (except for tablespace quota information), unlike the default method of Dictionary - Managed Tablespaces.
** Reduced recursive space management
** Reduced contention on data dictionary tables
** No rollback generated
** No coalescing required
3. How many blocks will form a Extent. Is it configurable ?, Where we need to configure whether we need specify it in Storage Parameters or in some configuration files?
metalink note:69343.1, How oracle allocates extents
SJH
OCP DBA