I WAS A MAINFRAME sp BEFORE
Ever supported ICBC in china. Now still keep a large box of mainframe books in basement for no reason, --it is a really sentimental thing. Sometime read pages of CICS Dump analysis, MVS kernel flow, ... regret giving up too much, including Tandem nonstop kernel (only remembered a software name: VIEWSYS). Now am just a stupid unix admin, occassionally involved in oracle , informix & mysql.