Characteristics of the IDAEOVXT Exit Routine

IDAEOVXT is packaged as a single load module. It is entered in 31-bit addressing mode and must return in 31-bit addressing mode. You can replace IDAEOVXT with another module that sets a return code of 0 and causes VSAM EOV to try the extend. The replacement IDAEOVXT module must be reentrant and is entered in the supervisor state and key 0. Return to VSAM EOV must be in supervisor state and key 0.

IDAEOVXT receives control when all candidate volumes have been used and dynamic volume count usage is unsuccessful. IDAEOVXT receives control for all extended format VSAM data sets and VSAM data sets that are SMS managed, except for the following data sets:

Keyrange data set
IMBED data set
Temporary data set
Catalog
Catalog opened as a data set
“System” data set
VVDS
Data set that was opened for improved control interval processing
Data set using control blocks in common
SNAPSHOT EOV

IDAEOVXT is not used for VSAM RLS.