In <[EMAIL PROTECTED]>, on 09/03/2005
at 03:21 PM, Terry Sambrooks <[EMAIL PROTECTED]> said:
>The phrase alternate sysres is a part of my culture, or at least was
>up to March 1999. The maintenance philosophy dictated that our main
>system volumes operated in pairs. The active set and a maintenance
>set. The maintenance set would receive all changes, which required an
>IPL to be implemented, and once a month the IPL would occur off the
>maintenance set. If the IPL ran smoothly the maintenance volumes
>became the active set, and the previous active set became the new
>maintenance set. The next maintenance cycle beginning with a clone to
>refresh the new maintenance set from the current active set.
As part of that process I always ran a regression test and also froze
maintenance until production had been running on the new service level
for a reasonable period of time.
--
Shmuel (Seymour J.) Metz, SysProg and JOAT
ISO position; see <http://patriot.net/~shmuel/resume/brief.html>
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)
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