IBM DATA MIGRATION SERVICES Brochure page 5

Storage migrations made simple.
Page 5
Highlights
For most industries, estimates of
data growth can typically range
from 25 to 50 percent annually.
In many cases, technology refresh not only means replacing storage arrays,
but also upgrading associated servers to better meet service level agreements
or because the servers, like the arrays, have reached the end of their lease. In
addition, storage and server capacity are acquired annually or more often to
accommodate data and application growth. Estimates of data growth vary, but
they typically range from 25 to 50 percent annually for most industries.
So, every year, a typical organization acquires storage technology to replace
arrays on which lease or maintenance agreements are expiring, as well as addi-
tional capacity to accommodate anticipated growth. Thus, the IT organization
must move data between servers and storage for technology refresh on a very
regular basis. The storage mantra is: You have data, therefore you will move it.
2008
Total on Floor (TB)
659
New (TB) 152
Replaced (TB) 115
Purchased (TB) 267
Figure 1
Example annual migration requirements
2007 2006 2005
507 390 300
117 90 70
77 60 45
194 150 115
2004 2003 2002
230 177 136
53 41 31
24 19 14
77 60 45