Nutanix, the Silicon Valley startup that is pushing into the enterprise scale-out IT architecture it says is similar in style to the systems running in massive data centers operated by the likes of Facebook and Google, has raised US$101m from new and existing investors.

The San Jose, California-based company jams compute and flash storage into one 2U node. It says a single two-node appliance can support up to 115 virtual machines, depending on the model.

The market for such style of IT, often referred to as “converged infrastructure,” is busy with competitors large and small. The large ones include the likes of HP, Dell, IBM, EMC, NetApp and Cisco, among many others.

An example of a smaller startup in the space is SimpliVity, which has also had success in raising venture capital. Its latest (third) funding round came in November 2013, raising $58m.

Two new investors jumped on board in Nutanix’ fourth round, joining a group of previously participating venture capital firms. Morgan Stanley Expansion Capital and Greenspring Associates added their money to the pool of cash along with Lightspeed Venture Partners, Khosla Ventures and Battery Ventures.

Riverwood Capital and SAP Ventures led the round. Jeff Parks, a founding partner at Riverwood, has joined the board of directors of Nutanix.

The latest infusion brings the firm’s total to US$172.2m, raised through four rounds. Its first two funding rounds ($13.2m and $25m) came in 2011, followed by a $33m Series C round in 2012.

Nutanix says revenue from the sales of its platform has reached about US$100m, and 13 of its customers have spent more than $1m on the company’s products. Among its customers are a few marquee names, such as eBay, McKesson, Toyota, Orange and Hyundai.

eBay’s virtualization architect Drew Trieger said Nutanix had significantly simplified large-scale data center architecture. “We had considered alternative solutions from established players as well as newer companies, but none could match the combination of performance, compact footprint, ease of use and flexibility of the Nutanix platform,” he said.

Nutanix CEO Dheeraj Pandey told Forbes that the company was headed for an eventual initial public offering. It will spend 2014, however, focused on delivering the next set of strong annual sales results before going public.