DFS2452I AREA aaaaaaaa IS TOO LARGE FOR VSO
Explanation
The Virtual Storage Option (VSO) was requested for area aaaaaaaa, but the area exceeds the maximum size allowed for VSO. The maximum allowable size is 2 gigabytes (2 147 483 648 bytes), minus some storage used by z/OS® and IMS.
The amount of space needed for an area in a data space is (rounded to the next 4 KB):
× ((number of UOWs in the root addressable
portion)
+ (number of UOWs in the independent
overflow portion))
Expressed
in terms of the parameters of the DBDGEN AREA statement,
this is (rounded to the next 4 KB):
× (the value of the UOW=number1 parameter)
× (the value of the ROOT=number2 parameter)
The actual amount of space in a data space available for an area (or areas) is 2 gigabytes (524,288 blocks, 4 KB each) minus an amount reserved by z/OS (from 0 to 4 KB) minus an amount used by IMS Fast Path (approximately 100 KB). You can use the /DISPLAY FPV command to determine the actual storage usage of a particular area.
System action
The area is opened as DASD mode.