Is there any variable that can be used to set an alert on the Large E-CSA value of the SYSVIEW COMMON display?
The variable in earlier releases of SYSVIEW is STGECSAM. It represents the ECSA Large block value. When defining a THREHSOLD for the variable, you can use a value like 200M, since the limit fields are only 8 positions.
Starting in SYSVIEW R17.0 variables became metrics, and the metric equivalent is MVS_STG_EcsaMaxFree