ADD2095 Data Storage Expansion 2017

Type of decision: 
Assistant Director's decision
Date signed: 
30 April 2017
Decision by: 
David Munn, Head of Information Technology

Executive summary

The GLA’s Technology Group (TG) seeks authorisation to conduct a procurement exercise for the expansion of onsite storage to support the GLA’s onsite data storage needs over the next 12 to 18 months to support the GLA’s hybrid data storage environment as the organisation transitions to cloud based storage. 


That the Head of Technology approves expenditure of up to £50,000 over 3 years for 60 terabytes (TB) of expanded storage to support the onsite component of the GLA’s hybrid cloud migration strategy. 

Part 1: Non-confidential facts and advice

Introduction and background

In 2014 MD1350 outlined and authorised the GLA’s approach to providing a private cloud environment for data storage and processing. In 2015 DD1375 outlined and authorised the expansion of this environment to cover expected data expansion up to 2017. In 2016 MD2053 outlined and authorised the GLA’s Microsoft cloud strategy. As the GLA moves data into the cloud it is pursuing a “hybrid” public/private cloud approach as outlined in the GLA’s IT Strategy 2016 (please see Appendix 1). This “hybrid” approach combines both onsite and cloud based storage to provide an optimised end user experience whilst data is transitioned into the cloud. This approach allows for low cost onsite storage to be use for legacy data and legacy applications whilst new data and applications are built within the cloud environment. 

Objectives and expected outcomes

The procurement and implementation of around 60TB of expanded disk storage at the GLA’s private cloud hosting site to support the GLA’s hybrid storage requirements.  

Equality comments

An equality impact assessment has been carried out. The proposals outlined in this report will result in an increase in onsite data storage capacity and therefore no impact on any individuals with any protected characteristics has been identified. 

Other considerations

This report addresses the GLA Business Plan 20-17 priorities "To improve the flexibility of services" and “To improve the resilience of services”. 

The proposals outlined in this report contribute to addressing the corporate risk “C2 Business continuity” as outlined in the Corporate Risk Register by providing resilient managed data storage services. 

A competition between suppliers for the required solution will be undertaken in accordance with the GLA’s Contracts and Funding Code by using an open competition approach.

Financial comments

Approval is being sought to spend up to £50,000 to upgrade the onsite storage capacity for City Hall and associated hardware support for 3 years. The expenditure is broken down as follows: 



Capital payment for Storage Equipment



Installation costs



Year 1 support costs



Year 2 support costs



Year 3 support costs





The capital expenditure will be funded from the Technology Group Capital budget for 2017/18.
The installation and support expenditure will be funded from the Technology Group Programme Delivery budget for each of the relevant financial years.

Planned delivery approach and next steps



Procurement of contract [for externally delivered projects]

April 2017

Delivery Start Date [for project proposals]

April 2017

Delivery End Date [for project proposals]

April 2017

Project Closure: [for project proposals]

May 2017

Share this page