GEMINI Re-platforming Project September 2012 GRP External User Changes and Key Messages ahead of seeking approval.

Changes & Impacts Legacy Gemini Access Today Legacy and Target Gemini Access Before GRP Readiness Testing and Cutover Gemini Access Post GRP PIS N/ARequired Changes* : Implement Target GEMINI IP addresses Implement Target Citrix/API firewall rules Change Citrix login password API client - use target GEMINI URL Update PC User customisations (shortcuts/batch files/web browser) If required update Citrix client to version 11 Required Changes*: Remove Legacy GEMINI IP addresses Remove Legacy Citrix/API firewall rules Remove Legacy customisations (shortcuts/ batch files) Recommended Changes*: If required update Citrix client to version 13 N/ACitrix Client version 11** required for pre-cutover coexistence and migration to Citrix Xenapp impact assessment for compatibility with non-Gemini systems that use Citrix. Citrix Client version 13** recommended for an enduring supported PC platform - impact assessment for compatibility with non-Gemini systems that use Citrix. IX Citrix Metaframe 4.5 Citrix Client v11 or earlier LEGACY GEMINI External GEMINI User POTENTIAL OTHER NON-GEMIN SERVICES USING CITRIX Citrix Metaframe 4.5 Citrix Client v11 LEGACY GEMINI External GEMINI User POTENTIAL OTHER NON-GEMIN SERVICES USING CITRIX Potential Citrix Use Citrix Client v13 External GEMINI User POTENTIAL OTHER NON-GEMIN SERVICES USING CITRIX Citrix Xenapp 6.5 Citrix Xenapp 6.5 Assess Citrix Client v11 upgrade Impact Assess Citrix Client v13 upgrade Impact IX TARGET GEMINI Changes Impact Analysis External User Gemini Access Configuration Timeframe Further detailed information shall be provided to inform you of the required and recommended changes on Friday 14 th September **Stated versions of Citrix Tested using vanilla PC builds

What are the key messages for your IT Support Function & Business Users? We invite you to share the following key messages internally: Business Users: Testing has identified that there is no application functional or business process change Request your IT Support Function to provide a full impact assessment of required changes Participation during the Readiness Testing (21st January to 1st March 2013) is required to guarantee Gemini access post cutover We need a technical representative from your organisation to be an active participant in UKLC to support you to ensure you are up to date and prepared for cutover The proposed cutover window is estimated to be 12 hrs starting 2am on Sunday 9th June 2013, a back-out plan has been established with an allowance 6 hours has been set. IT Support Function: Complete impact assessment of all required changes for GRP Cutover, paying special attention to Citrix Client Version 11 installed on PCs with existing IT infrastructure and any potential non-Gemini services hosted on Citrix services e.g. MetaFrame, Xenapp Implement required GRP changes for Readiness Testing and Cutover (downloadable from Provide suitable test environment for Readiness Testing that is connected to Legacy & Target Gemini and if required your non-Gemini services hosted on Citrix services The project team can provide support on required changes and testing, however due to the uniqueness of your IT systems and infrastructure configuration, only limited support can be provided on how the changes can be implemented.

THANK YOU In the event that you need assistance with the required GRP changes or have any questions then please contact the GRP Project Team via: or /