VMware vSAN - VMware vSAN is radically simple, enterprise-class software-defined storage powering VMware hyper-converged infrastructure. 

WinDirStat - WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.

Nutanix - Nutanix is a virtualized datacenter platform that provides disruptive datacenter infrastructure solutions for implementing enterprise-class.

WizTree - WizTree quickly finds the files and folders using the most space on your hard drive. It scans the MFT (Master File Table) instead of crawling the entire disk which makes it very fast.

NetApp HCI - NetApp HCI and SolidFire bring together the best of the public cloud and the private cloud to create a seamless user experience and to help you build a true hybrid multi cloud experience.

SpaceSniffer - SpaceSniffer is a freeWare (donations are welcome) and portable tool application that lets you understand how folders and files are structured on your disks.