Overall scope of hosts
Upgraded to Windows 2008 or decommissioned
Microsoft confirmed support for Windows Server 2003 would expire on July 15th 2015. All Windows 2003 systems had to be upgraded to Windows 2008 or decommissioned by that date. At that time, the Tier 1 Banking client had 9,500 Windows 2003 hosts supporting 4,000 applications globally.
Our approach was to develop an end-to-end process that included key reporting and governance milestones, which would enable the Windows 2003 programme to report effectively on a dedicated Windows 2003 programme website.
The end-to-end process also allowed us to calculate and fully define the roles and responsibilities required to deliver the entire programme. As a result, all that was required of the Application Owners was their commitment, attendance at planning sessions, releasing and remediation of their application to Windows 2008 and applicable testing at their discretion for migrations and upgrades. The Windows 2003 team were fully responsible for assisting in the Application Owners migration or upgrade to Windows 2008 or decommissioning activities, this enabled the team to effectively drive the programme.
FROM A TRANSFORMATION PERSPECTIVE, THE WINDOWS 2003 PROGRAMME’S APPROACH WAS TO:
1. Virtualise and migrate to a hub location wherever possible
2. Virtualise and migrate locally
3. Migrate to another physical server
THE WINDOWS 2003 TEAM INCLUDED TECHNICAL SPECIALISTS TO WORK CLOSELY WITH THE APPLICATION OWNERS AND PROVIDED:
Of the 9,500 Windows 2003 hosts in the bank at the start of the programme, today 88% of this scope has been remediated via an upgrade to Windows 2008 or via decommissioning. Of the scope that the Windows 2003 team were fully responsible for (excluding vendor owned infrastructure), this success rate increases to 94% of the hosts being remediated.