Overall, the philosophy is to attack the availability problem from two
complementary directions: to reduce the number of software errors
through rigorous testing of running systems, and to reduce the effect
of the remaining errors by providing for recovery from them. An
interesting footnote to this design is that now a system failure can
usually be considered to be the result of two program errors: the
first, in the program that started the problem; the second, in the
recovery routine that could not protect the system.
-- A. L. Scherr,
-- "Functional Structure of IBM Virtual Storage Operating Systems,
-- Part II: OS/VS-2 Concepts and Philosophies,"
-- IBM Systems Journal, Vol. 12, No. 4, 1973, pp. 382-400
econd-system effect: n. (sometimes, more euphoniously
`second-system syndrome') When one is designing the successor to
a relatively small, elegant, and successful system, there is a
tendency to become grandiose in one's success and design an
{elephantine} feature-laden monstrosity....
econd-system effect n.
(sometimes, more euphoniously
`second-system syndrome') When one is designing the successor to
a relatively small, elegant, and successful system, there is a
tendency to become grandiose in one's success and design an
elephantine feature-laden monstrosity....
