This Natural profile parameter specifies the search algorithm that is to be used for allocating storage in the Natural buffer pool.
Possible settings | S |
This indicates that a selection process is to be used for allocating storage. The selection process consists of browsing the whole buffer pool directory and comparing different entries in order to find the most suitable entry. This method was formerly known as Algorithm 1+2. |
---|---|---|
N |
This indicates that the next available unused or free space is to be used. The search for the next available space is done from a pointer to directory entries which moves in a wrap around fashion. This method may be used in combination with a buffer pool cache. | |
Default setting | N |
|
Dynamic specification | yes | This parameter can only be specified dynamically. |
Specification within session | no |
Notes:
METHOD
subparameter of the BPI
profile parameter or the NTBPI
macro.
BPMETH
specification is converted into the
equivalent BPI
specification; for example: BPMETH=S
is
converted into: BPI=(TYPE=NAT,SEQ=0,METHOD=S)
.
BPMETH
parameter only applies to the primary Natural
buffer pool (TYPE
=NAT
,
SEQ
=0
). In the case of
a global buffer pool, it is ignored. If there is a primary buffer pool with
SEQ=0
in the Natural parameter module, only the
METHOD
setting of this buffer pool is updated.
BPMETH
profile parameter only affects the very first Natural
session which initializes the local buffer pool.