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Allocation strategies
An allocation strategy is the implementation of your requirements for data set allocation. An allocation strategy includes:
- Data set placement
- Allocation values (primary quantity and secondary quantity)
- Data set reuse
- Updating the Db2 Catalog values
An allocation strategy also:
- Determines how a product should allocate, and use the table spaces and indexes that are being processed
- Includes where and how big the data sets should be defined, and whether the existing data set should be written over, or deleted and redefined
You can make the BMC AMI Utilities define data sets in the same way Db2 does, but that is not always the best way. The BMC AMI Utilities offer allocation features that enhance the process. For example, you can reclaim unused space in a table space as a normal part of a reorganization. A PQTY value that does not fit on a volume and would cause a Db2 utility to fail can be dynamically reduced to fit.
You can manage allocation at one of the following levels:
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