Consolidation is not a dirty word (when it comes to Data Centres)

Dr Steve Turner, VP of IT Optimisation at Intergence, looks at the benefits of moving data to a single location

Dr Steven Turner, Vice President of IT Optimisation at Intergence, a leading independent IT Optimisation consultancy headquartered in Cambridge, believes that data centre consolidation can provide major benefits for businesses looking to streamline operations, cut costs and improve performance.

In the past, expanding your business’s IT capacity was just a question of building bigger or additional data centres, but in today’s economic climate, that’s no longer an option. Consolidation of smaller data centres and relocating services under a single, larger roof may provide significant benefits. Many large enterprises find themselves with several heterogeneous IT systems, either through acquisition or simply through ongoing upgrades, and they need to make sure that everything works together seamlessly.

Data Centre consolidation is a major undertaking that can take up to two years to complete and initially can be expensive, but the long term benefits can be impressive: cost reductions (utilities, infrastructure, services and operations), improving service levels and being more capable of meeting new business challenges through greater flexibility. In an ideal situation, applications are available 24/7, end user experience is excellent, operational costs have been cut, human resources are optimised and management of the whole operation is simplified. Indeed it is an ideal opportunity to review the existing infrastructure and improve upon areas which were previously considered poor but unsuitable for upgrade due to organisational and / or technical reasons.

However, the worst case scenario is that performance falls, often due to increased application latency or infrastructure which has not been sized correctly to meet the business demands. This can be a common problem and one which even the largest of organisations can face through inadequate planning and testing.

Ultimately, what you should be aiming for is something that adds value to the business, allowing it to become more competitive and efficient rather than cutting costs at the expense of performance and security.

These are the top ten reasons for consolidating your data centres:

1. Management of employees: Each individual data centre needs to employ system administrators, engineers, operational specialists, facilities staff as well as managers to oversee the whole operation. Consolidation will reduce these numbers and optimise staffing requirements through less management overheads and greater workforce utilisation.

2. ISPs: Because servers in different Data Centres need to communicate to each other and for resiliency purposes, several ISPs are often involved. However, some ISPs may be more reliable than others depending on location. Hence, if one of your Data Centres is located in a region whose ISPs cannot offer Service Level Agreements which are high enough to meet business needs it would be prudent to consolidate this site into a location with more reliable links.

3. Latency: Having an application server in one location and a back end database server in another could add latency of 10 – 15 milliseconds (10 to 15 thousandths of a second) or more. However, this doesn’t mean that the end user will experience application response times of only 15 milliseconds. TCP-based applications are often “chatty”, requiring thousands of round trips between client and server to complete a request in the worst case (e.g. Microsoft CIFS). Therefore a single action that previously took only two seconds to complete could end up taking 20 seconds or more following migration, causing unacceptable delays to the end users.

4. Complexity: Each Data Centre may have tens of thousands of servers and many more dependencies between hardware, software and business applications. If application servers and backend databases are in different locations then this increases troubleshooting complexity when examining application servers with multiple tiers (e.g. Web front end, database backend, separate authentication server, separate credit card payment server etc.)

5. Resilience: Operating many interconnected Data Centres, reduces overall resilience if one part fails. Business continuity can be a problem, especially if the data centres are reliant on one another in order to provide a particular service. If any of your existing data centres are located in areas which are vulnerable to potentially extreme weather conditions such as hurricanes, flooding, or earthquakes then it pays to consolidate these locations to an area with lower risk factors.

6. Security: Older Data Centres may have lower security, both physical and logical, protecting your data. Through consolidation, the exposure of access to data is reduced by limiting the number of locations it be accessible from. It also provides a platform for reviewing and improving upon the existing security arrangements.

7. Cost: By utilising less locations you can benefit from lower operating costs relating to both management, capital expenditure and operational expenses such as power, cooling, land taxes and software licenses. There will be further benefits from reduced employee requirements from security, management, technical support and facilities support.

8. Service consolidation: Old application servers which are no longer required can be retired, multiple copies of the same services such as Radius, Active Directory etc. can be virtualised and consolidated into a smaller number of servers reducing management, hardware and software costs. Storage consolidation can also provide significant benefits through better utilisation of storage systems and economies of scale by reducing the number of locations requiring onsite storage.

9. Service optimisation: Use consolidation as an opportunity to streamline services by improving application flows between multi-layered systems. Bottlenecks from underpowered or end of life systems can be eliminated through migration to better resourced, virtual environments.

10. Efficiency: This can arise from following the previous recommendations, in particular the reductions in management overhead and optimisation of existing systems. By running more optimised services, the end user performance can be improved whilst management overheads are reduced, allowing the business to operate more efficiently. Ultimately allowing it to remain competitive in the face of an ever changing market through a faster ability to execute.

Data Centres are no longer just about hosting business applications or large quantities of data. Today, the Data Centre infrastructure needs to be aligned with an enterprise’s broader business goals with a focus on reducing operational costs whilst ensuring the end user experience of applications is excellent and the business can grow to meet future demands.

The author

Steve Turner is the VP of IT Optimisation at Intergence a leading independent IT Optimisation consultancy founded in 2003 to address the growing requirements of clients demanding high-level impartial expertise in networks and IT.

Dr Turner specialises in Network Optimisation and has successfully completed a large number of optimisation projects for clients in both the public and private sector. Steve is Cisco CCNA and CCNA security certified and is currently studying CCNP. Steve has gained a BSc (Hons) in Computer Science from the University of Warwick, and an MSc in Network Systems from the University of Sunderland. He has also completed a PhD using genetic algorithms in conjunction with parallel processing to produce a multi-utility network optimisation tool. Follow Steve on Twitter.

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About Intergence

Intergence is an independent IT Consultancy and Professional Services firm, headquartered in Cambridge, UK, with a regional office in the Middle East (Dubai, UAE). Privately Owned, Intergence was founded in 2003 to address the growing requirements of clients demanding high-level impartial expertise in networks and IT. Our close relationship within the Cambridge academic community enables us to innovate in partnership, rapidly incorporating the latest technology advances into our solutions.

Intergence are experts in IT Optimisation, specialising in areas such as application, infrastructure and data centre optimisation. We provide Consulting Services to align IT to your business strategy; Resourcing to provide highly skilled expertise and Managed Services to deliver challenging IT projects on time and to budget. Utilising a unique combination of world class expertise, industry-leading methodology and unique tools, Intergence has a clear and common purpose – to allow our clients to extract more value from their existing assets, whilst delivering a first-class service.

For more information, please visit: www.intergence.com

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For further information about Intergence, please contact:

Laura Brown/Justine Smith
KISS Public Relations
T: + 44 (0)208 12345 75
E-mail: laura @kisscom.co.uk
[email protected]