Tamil, this is a good story. I am just curios and would like to discuss with you ... in such case, what about building indexes with buffer pool recycle and setting default and recycle pool instead of default and keep pool? In the solution you have implemented, in fact you made your keep pool to operate as a default pool and your default pool to operate as a recycle pool. Practically these are just pools with associated objects to them, which competes to each other and do not interfere with the objects in the other pool, so you can call it keep or default or recycle... it is just about how you use it, not how you call it, but still it seems you used keep pool as a default pool and the default pool as a recycle pool :-)