46
Upgrade and Maintenance Manual
BX920
S4
Basic hardware procedures
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4.1.3
Determining the error class
The Local Service Concept (LSC) allows you to identify defective server blade
components. Failure events are assigned to one of two error classes:
–
Global Error
events that need to be resolved by maintenance personnel
–
Customer Self Service
(CSS) error events that may be resolved by
operating personnel
Global Error and CSS LEDs indicate, if the defective component is a customer
replaceable unit or if maintenance personnel needs to be dispatched to replace
the part.
I
The indicators also light up in standby mode and after a server blade
restart due to a power failure.