Chapter 10. When Applications Fail
This chapter includes the following topics:
QoS troubleshooting tools
Diagnostic tools
Troubleshooting methodology
Identifying responsibility
Resolving performance problems
Redefining delivery requirements
Redefining service level criteria
In the majority of enterprises today, it is rare to see a complete application failure. What normally occurs is that an application fails to perform to end-user expectations, with a resulting loss in productivity and frustration for the user.
Performance problems are seldom caused just by overloaded WAN or LAN links. Application transactions depend on many outside influences, and any one discrepancy in the process can cause the whole system to crumble. You need to profile the application ...
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