There are multiple advantages. Typically, being an all-flash storage, which is available through either SimpliVity or dHCI, the performance is much better because the IOPS goes high, so it's more powerful in terms of performance. Secondly, if I'm talking of SimpliVity Hyper Convergence solution from HPE, unlike the competition, even if three hard drives fail, you are still running the solution.
It is easy to manage; the administration is simpler. It saves a lot of rack space in the data center because you can consolidate 20 servers into three to five nodes. The client will be able to benefit from power savings and cost savings as well.
One of the things that can be improved is that today, is supporting VMware, maybe as a hypervisor. But it would be good to have an open kind of platform for other hypervisors, maybe. Like Nutanix is doing, it's very open.
Scalability is an issue because it becomes very expensive. When you need to upgrade memory, you have to upgrade memory across the nodes. Suppose a customer has gone with a three-node HCI solution, then to increase the memory, you have to do it across the three nodes.
We have faced some challenges when upgrading. With Hyper Converged, you have to fully upgrade because there are no incremental upgrades available in this solution. For example, let's say we have two nodes. If we want to upgrade storage, we also need to upgrade computing. That means a full upgrade EME.