Australian organisations are set to spend $2.5 billion on data centre systems in 2015, according to Gartner.
That's an increase from $2.3 billion in 2014.
This includes spending on enterprise communications applications, enterprise network equipment, servers and external controller-based (disk) storage.
It is in line with Gartner's annual CIO survey, which has cloud and infrastructure/datacentres in the top four technology priorities of Australian CIOs in 2015.
Despite this spending increase, the number of data centres in Australia continues to decline as Australian businesses are focused on improving datacentre economics, coupled with agility and management.
Of the 62,314 data centres in Australia in 2015, only 11 are classified as large data centres, defined by Gartner as having at least 1,000 racks of equipment and/or at least 20,000 square feet.
While 78 are enterprise data centres with at least 250 racks of equipment and/or at least 5,000 square feet.
The vast majority are classed as single deployments or small racks in "computer rooms" in smaller companies.
Gartner managing vice president, Michele Caminos, said that the nexus of forces (cloud, social, mobile and information) and the Internet of Things together was creating a new digital business world that required a new approach to data centre demand and management.
"The future data centre is moving toward a more fluid architecture, focusing on workflow relative to how it interoperates and collaborates with other systems and cloud components to support digital business, rather than workload,” she said.
“It is also focused on what the work is doing and supporting, rather than where it is located.
"Organisations have to look at their datacentre environment at a much higher level today."