How Does a CICS or VTAM Transaction Connect to a View Database, Utilizing XMS and why SUBSYS XME0 appears to be used ?
Release : 14.0
Component : View
By default, the CICS service transaction, XME0 for release 14.0, must be changed with each new release of the product.
By default The XMS address space, the subsystem ID SUBSYS=XME0
CICS or VTAM transactions connect to a View database, via a cross-memory services (XMS) task, based on a match of the SUBSYS=... parameter defined for the transaction in the EBCXMCTR table.
A sample transaction would contain:
Correspondingly, the XMS task parameters would contain the same SUBSYS=subsysid value.
When the EBCXMCTR table is assembled, and there are no SUBSYS=xxxx fields in the transactions, then the default of SUBSYS=XME0 (for View/Deliver 14.0) would be used.
Similarly, if there is no SUBSYS=... parameter defined in the XMS task, then the default of SUBSYS=XME0 (for View/Deliver 14.0) would be used.