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Methodologically Upgrading A Production System

Added by Papergrl

Description: Patching and upgrading systems has been and still is a revolving task. System administrators receive security alerts, messages, and notifications of available software updates countless times on an irregular basis. We perform the patch, the upgrade, and the fix. A day later, we are informed of another security patch. What happens intermittently, when you receive the notification of a patch and when the patch is successfully applied to your production system? Simply applying the security patch to the production system(s) without executing a set of trial runs of the patch increases the risk of downtime to the user community of your system(s).