Chapter 10. Special Techniques for System Serviceability
Online System Redefinition
The first technique for improving system serviceability is to deploy equipment that can be serviced without bringing down the entire computing system. Online system maintenance gives you the flexibility to perform repair work at a convenient time, instead of waiting until there are no users at all on the system (an increasingly rare occurrence) or deliberately causing an outage.
Add or Remove I/O Devices
Many newer computer systems allow you to install or remove input or output devices without powering down the computer.
For example, Sun Microsystems' Solaris operating environment has a Dynamic Reconfiguration (DR) feature that enables you to dynamically attach and ...
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