German airline Lufthansa has said it is close to a deal to sell its IT infrastructure unit to IBM, including an outsourcing agreement for the services. 

The deal is part of a shake-up of the company's technology activities.  

Europe's largest airline by revenue is undergoing restructuring and cost-cutting efforts to better position itself to compete with low-cost carriers and Gulf rivals. 

It earlier this year said it was seeking a buyer for the unit, which provides data centres, networks and telephony, because it requires a high level of investment and economies of scale, which the airline could not provide. 

Under the planned deal, Lufthansa will outsource all of its IT infrastructure services to IBM under a seven-year deal and the US firm will take over the airline's IT infrastructure division, currently part of Lufthansa Systems.

The partnership announcement comes two days after IBM, a company undergoing a stark transition of its own, shocked the markets with lower quarterly results and by suspending its full-year forecasts.

IBM, now largely a computer services supplier, said it suffered a marked slowdown in September as many customers stopped buying new services due in part to macroeconomic concerns.

The deal will result in a one-off pre-tax charge of €240m for Lufthansa, which will not impact its operating result for 2014. It will allow Lufthansa to reduce its annual IT costs by around €70m euros a year. 

A final price for the sale is still being negotiated.

The sale is part of plans to reorganise the Lufthansa Systems business into three parts - Infrastructure, Airline Solutions and Industry Solutions, with the latter two to be kept within the Lufthansa group as independent companies. 

The infrastructure business, which employs 1,400 people, accounted for 40% of Systems' total turnover of €640m in 2013 but it made up only 25% of the unit's profit. 

The Lufthansa Systems restructuring is expected to be complete in the first quarter of 2015, with the deal to sell the IT infrastructure unit due to complete by March 2015. 

Other parties reportedly interested in the unit were Hewlett-Packard and France's Atos.