The user issues IXLCACHE REQUEST=WRITE_DATA to write a new and changed data item and assigns it to storage class 1.

Environment

Environment at the time of the user action:

• No free storage available in cache structure.
• No reclaimable storage available in storage class 1.
• There is enough reclaimable storage in storage classes 2 and 3 to satisfy the request.

System Response

The system fails the request because there is no free storage and no reclaimable storage in storage class 1. It does not subtract 1 from the reclaim counter for storage class 1.

Vector Counts after the Request

On the next request, the system can perform reclaims for data items assigned to storage class 1 as follows:

• From storage class 1: 1 reclaim. (unchanged after this request)
• From storage class 2: 0 reclaims
• From storage class 3: 1 reclaim