| Parameter | Specify . . . | Minimum | Maximum | Default |
|---|---|---|---|---|
| LU | the size of the intermediate user buffer area. | none | none (see note 1) | 65535 (see note 2) |
The LU parameter is optional. The size specified must be large enough to accommodate all Adabas control information (108 bytes), all user buffers (format, record, search, value, ISN) that may be required for any given Adabas command, plus any user information passed from Adabas link routines to nucleus user exits.
If the multifetch/prefetch option or a utility that needs large record/ISN buffers is to be used during the session, the setting of LU must be large enough to contain the buffers needed.
Notes:
(NAB-value x
4096); on VSE and BS2000 systems, LU cannot exceed a value greater
than that produced by the following calculation:
(NAB-value x 4096) – 256. For more
information about the NAB parameter, read NAB: Number of Attached
Buffers.
The LU parameter syntax is:
LU={ n | 65535 }
Run the Adabas nucleus with an Adabas intermediate user buffer area of 20,000 bytes.
ADARUN PROG=ADANUC,LU=20000
