DSNB540I csect-name INSUFFICIENT LOCAL CACHE VECTOR STORAGE TO EXPAND BUFFER POOL bpname TO SPECIFIED SIZE size1. BUFFER POOL SIZE IS NOW size2.
Explanation
The specified buffer pool could not be expanded to the requested size (size1). The associated group buffer pool is connected, and the local cache vector could not be expanded to cover the requested buffer pool size.
The local cache vector is a bit array which tracks whether the page in a given buffer was modified by another system (cross-invalidated). There must be one bit in the vector for each buffer in the buffer pool. For more information on the local cache vector, see z/OS MVS Sysplex Services Reference.
System action
Db2 downgrades the expansion request to the size that can be supported by the available local cache vector storage (size2).
System programmer response
Free local cache vector storage by contracting or deleting other buffer pools that are connected to a group buffer pool. Then reattempt the pool expansion by reissuing the ALTER BUFFERPOOL command.