Changing the size of the lock structure

You can change the size of a lock structure dynamically or by rebuilding the structure after making a CFRM policy change.

When choosing which way to change the size, consider the level of the coupling facility and when you want the storage of the lock table portion of the lock structure changed.

When you change the size of the lock structure dynamically, only the modify lock list portion of the structure is changed immediately. The size of the lock table portion remains unchanged until the old structure is deallocated, and a new structure is allocated. After a new allocation, the structure is reallocated at the changed size with the storage divided between the lock table and the record table based on your IRLMPROC LTE value or the value that is set using the MODIFY irlmproc,SET,LTE= command, if either of these values is nonzero. (If the structure was forced with the SETXCF FORCE command, it is reallocated at the INITSIZE that is specified in the CFRM policy and not the changed size.)