The cost of managing systems is expensive and is getting more expensive. This is particularly true when using servers that are aging.
The cost of support and administration of a new serer is about
$4,200/year; by year seven, the cost will rise to about
$17,000/year. It is logical to try and decrease these costs through refreshing the hardware 1).
Granted, there are products and tools that can reduce the complexity of managing the various platforms easier and this is a big step towards helping manageability. But the overall goal is always to have systems that are easier, cheaper, and quicker to manage. There is another way to think about manageability called the Bathtub Curve. Although Figure 2 is targeted at hardware, there are similar things that effect software. Probably one of the biggest problems is that as the number of components in the system increase, the number of End-of-life (EoL) or End of Sales(EoS) issues need to be addressed. For example, a system that runs on an Operating System, has to worry about the EoL of the operating system. If it uses a database, it has a similar problem. These are generally not a problem in the early stags of the a system's lifcycle and hopefully of minimum problem during its “useful Life” phase. But as the system ages, more and more EoL problems arise. The more Commercial Off-The-Shelf (COTS), Government Off-The-Shelf (GOTS), Modified Off-The-Shelf (MOTS), and NATO Off-The-Shelf (NOTS) products used by the system, the longer the system exists there is an increase in risk to the system because each subsystem, component or modular need to be managed.