Almost half of IT managers are fed up because they have to buy more storage than they need, according to research by Vanson Bourne.

In a study commissioned by web hosting specialist Hostway, forty four percent of those surveyed admitted that, despite wanting only to sensibly invest in extra capacity for the future growth of stored data, they are often forced into purchasing storage that is superfluous.

According to the research, an average UK company has 38 percent of its total storage unused, which equates to wasting hundreds of thousands of pounds on unused storage capacity.

The research also showed that 94 percent of IT managers invest in more storage than they need, despite the fact that nearly half (44 percent) of them do not feel that they should pay for something they don't immediately require.

The main reason given for this over-buying is that storage hardware is often not available in smaller, cost effective increments.

"The current model of storage procurement is fundamentally flawed," said Hostway director Neil Barton.

"If an important project comes up subsequently which requires IT support then business agility can actually be reduced because funds have been absorbed by purchasing the excess storage."

The survey also found that 69 percent of IT managers are finding storage management increasingly difficult and complex, partly because the amount of data being stored by organisations has increased exponentially in recent years.

The research by Vanson Bourne surveyed 100 UK IT managers from large enterprise organisations.