IBM 440 manual These are summarized in -1 and described in detail below

These are summarized in Table 2-1 and described in detail below.

Table 2-1 Server consolidation strategies

Type of Consolidation	Definition	Potential Benefit
Centralization	Relocate to fewer sites	Reduction in administration costs
		Increased reliability and availability
		Lower operation costs
		Improved security and management
Physical Consolidation	Replace with larger	Reduced hardware and software costs
	servers	Improved processor utilization
		Reduced facilities costs (space, power, A/C)
		Lower operations costs
		Improved manageability
Data Integration	Combine data from	Reduced storage management costs
	multiple sources into a	Improved resource utilization
	single repository	Reduction in administration costs
		Improved backup/recovery capabilities
		Enhanced data access and integrity
Application Integration	Consolidation of	Reduction in administration costs
	multiple applications	Increased reliability and availability
	onto one server	Reduced facilities costs (space, power, A/C)
	platform	Lower operation costs
		Scalability

￿Centralization

Server consolidation means different things to different people. As shown in Figure 2-4, in its simplest form, servers are physically moved to a common location. Because this simplifies access for the IT staff, it helps reduce operations support costs, improve security, and ensure uniform systems management. This is an important predecessor to future consolidation activities.

London	Zurich	Toronto	Zurich
Sydney	Hong	Los	Hong
	Kong	Angeles	Kong
Figure 2-4 Centralization

Centralization involves relocating existing servers to fewer sites, for example, taking 20 servers scattered over three floors in your building and moving them

52 IBM ^xSeries 440 Planning and Installation Guide