This Natural profile parameter specifies the maximum total amount of variable storage that may be allocated by one Natural session outside its storage thread.

Possible settings	0-2097151	Maximum total storage outside the thread in KB.
Default setting	2097151	That is, the storage outside the thread is limited by the region size only.
Dynamic specification	yes
Specification within session	no

If the storage within the thread is exhausted during a Natural session, additional storage can be allocated outside of the thread. OVSIZE can be used to limit the total amount of variable storage. This does not affect physical storage (see profile parameter WPSIZE), which is allocated outside the thread always.

For non-thread environments (e.g. in batch mode or under TSO), this parameter is not honored.