5.Havethesamesoftwareversionsandlevels
6.Havethesamediagnosticdisk ettes(version)
7.Havethesamecongurationoptionssetinthesystem
8.Havethesamesetupforoperating-system-controlledles
Comparingthecongurationandsoftwaresetupbetween“workingandnon-working”systemswilloften
leadtoproblemresolution.
Chapter4.Generalcheckout35