MAXSUBT parameter

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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.