Kbase P4892: Active blocks from prostrct statistics
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
10/16/2008 |
|
Status: Unverified
GOAL:
Active and Empty Blocks from prostrct statistics
GOAL:
Why doesn't prostrct statistics show less active blocks for a particular storage area after deleting data from that area?
FIX:
When you have removed data from one area, prostrct statistics does not show less active blocks for that area. This is because blocks might become "Free" but not "Empty"; empty blocks are the only "non active" blocks for a database.
Empty blocks are the blocks over the high watermark, blocks which have not been formatted. There is no "Empty block chain".
When a database block is "emptied", it is added to the "Free block chain" or the "RM block chain" in case it has still some data.