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New disc arrays improved data storage and cut costs

Cost savings for operation, support, systems administration and data management translate as a return on investment of within 4 years. State-of-the-art technologies facilitate effective use of disc capacity, producing a 36 % saving on disc space. The output and response of business applications has been boosted significantly. At the same time, data security was raised and compliance assured with the Deutsche Telekom standards.

Initial status

The information systems of Slovak Telekom were used for storing critical data of 33 disk arrays. The user data capacity exceeded 1.1 PB. The inheritance was a strong heterogeneity of platforms and manufacturers (HP, IBM, EMC, NetApp). They were situated in four geographically remote data centres and were 4-8 years old (in 2011).

This status had been unsustainable for some time, accompanied by:

  • High energy costs for power and cooling
  • High costs for support and maintenance of old systems with expiring lifecycles
  • High personnel costs for administrating a large number of systems
  • Data duplicity causing senseless demands for additional capacity
  • Strong fragmentation of data and low usage of available capacity
  • Inadequate output parameters and limited options for their optimisation
  • Non-compliance with Deutsche Telecom standards

In 2011, the management of Slovak Telekom approved a Storage Strategy. It called for a major reduction in costs for data management and the operation of disk arrays, cutting their capacity by 40%, and to ensure harmonisation with the standards of the Deutsche Telekom group.

The results

The outcome of the 3.5-year long process is a modern, effective and efficient technical solution that meets all requirements of the business. From the perspective of the end user, faster access to data is the most prominent difference. For administrators and IT managers the main improvement is simpler management of disk arrays, fewer tasks linked to their operation and faster backup. For the company management, the reduction in costs for operation, administration and disk capacity, greater data security, faster business processes and compliance of infrastructure with the requirements of the Deutsche Telekom group, were the biggest benefits of the solution. All with the added plus of a return on investment within a reasonable time.

The consolidation in numbers:
- The number of systems has been reduced from 29 to 4
- 70% decreased operating costs (operation, support, administration)
- 85% decreased the cost of energy
- 36% decreased disk capacity
- 52% decrease in the number of discs
- 50% decrease in the number of network ports

More about the project

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Customer profile

  • Slovak Telekom


Cost savings for operation, support, systems administration and data management translate as a return on investment of within 4 years. State-of-the-art technologies facilitate effective use of disc capacity, producing a 36 % saving on disc space. The output and response of business applications has been boosted significantly. At the same time, data security was raised and compliance assured with the Deutsche Telekom standards.