The AMP vproc manages Vantage interactions with the disk subsystem. Each AMP manages a portion of the disk storage.
The AMP manages database tasks such as the following:
- Accounting
- Journaling
- Locking tables, rows, and databases
- Output data conversion
During query processing, the AMP manages the following:
- Sorting
- Joining data rows
- Aggregation
The AMP also manages disk space.
As the following figure shows, each AMP manages a portion of the physical disk space. Each AMP stores its portion of each database table within that space.
