MAXSUBT parameter

Max Subtransactions spanned

Summary

Default value

-1, which is the same as 65535 (halfword X'FFFF')

Maximum value

65534

Parameter type

System

Where set

System manager

Introduced

V7.7

Description

The maximum number of subtransaction checkpoints that a transaction backout (TBO) can span.

If MAXSUBT is exceeded, the request is cancelled with:

M204.0524: Maximum number (number) of MAXBOUT exceeded

Setting a value of -1 or 65535 means that the number of TBO pages allocated for one transaction is unlimited.