This Natural profile parameter specifies the size of the Natural local buffer pool.

Possible settings	256 - 2097151	Size of the Natural local buffer pool in KB.
Default setting	256
Dynamic specification	yes	This parameter can only be specified dynamically.
Specification within session	no

Notes:

1. This Natural profile parameter corresponds to the SIZE specification of the BPI profile parameter or the NTBPI macro.
2. BPSIZE only applies to the primary Natural local buffer pool (TYPE=NAT, SEQ=0). For a global buffer pool, it is ignored. If there is a primary buffer pool with SEQ=0 in the Natural parameter module, only the SIZE setting of this buffer pool is updated.
3. In multi-user environments (for example, under CICS), the BPSIZE parameter only affects the very first Natural session, which initializes the local buffer pool.
4. Under Com-plete, the size of a local buffer pool is set as described in the corresponding Natural installation documentation.
5. Internally, the BPSIZE specification is converted into an equivalent BPI specification; for example: BPSIZE=1500 is converted into BPI=(TYPE=NAT,SEQ=0,SIZE=1500).
6. For general information, see Natural Buffer Pool in the Operations documentation.