Ctera is not a storage system, but it is one of the few storage solutions capable of delivering what private cloud storage promises, and end users love it. To be fair, Ctera can work on any kind of backend from AWS S3 to on-premises NAS but, realistically, I think that object storage is its perfect match. I fell in love with Ctera a long time ago, the first time I had the opportunity to look into its products. It started with a remote backup/NAS solution with cloud backend, now it has a complete end-to-end line of products delivering also enterprise Sync&Share, remote and cross cloud data protection.