Chapter+6

chapter 6 IT Infrastructure objectives: 1. Define IT infrastructure and describe the components and levels of IT infrastructure. 2. Identify and describe the stages of IT infrastructure evolution. 3. Identify and describe the technology drivers of IT infrastructure evolution. 4. Assess contemporary computer hardware platform trends. 5. Assess contemporary software platform trends. 6. Evaluate the challenges of managing IT infrastructure and management solutions.  <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt; mso-ansi-language: EN; mso-ascii-theme-font: major-bidi; mso-bidi-theme-font: major-bidi; mso-fareast-font-family: 'Times New Roman'; mso-hansi-theme-font: major-bidi;"> <span style="color: black; font-family: 'Times New Roman','serif'; font-size: 12pt; mso-ansi-language: EN; mso-ascii-theme-font: major-bidi; mso-bidi-theme-font: major-bidi; mso-fareast-font-family: 'Times New Roman'; mso-hansi-theme-font: major-bidi;"> Applications, operating systems, storage, networks and databases need to support high reliability and availability. IT managers need a view across all components of the application infrastructure to maintain service quality. Legacy systems must be brought forward and enabled for XML, Web services and other new technology. Tools crossing middleware, EAI, message brokers, applications servers and database gateways must be combined to meet today’s requirements.