HALDB partition ID numbers

IMS assigns a partition ID number to each new partition when you define the partition.

IMS generates each new partition ID number by incrementing by one the last partition ID number assigned. Because you do not have control over the partition ID numbers, you cannot assume that the partition IDs in a database will stay in order.

For example, if you defined the partitions ABC100, ABC200, ABC300 in order, partition ABC100 would have partition ID number 1 and partition ABC300 would have partition ID number 3. Later, if you define a new partition ABC250, IMS assigns to it partition ID number 4.