Sequoia Technology LLC, as exclusive licensee of the patent-in-suit, has launched a litigation campaign, suing Dell (EMC) (1:18-cv-01127), Hitachi (1:18-cv-01129), and HP Enterprise (HPE) (1:18-cv-01128) in Delaware. Currently available USPTO records identify Electronics and Telecommunications Research Institute (ETRI) as the assignee of the patent, which is generally related to managing the storage of metadata. The defendants are accused of infringement through the provision of products and services offering Logical Volume Manager (LVM) dynamic resizing (which allows the dynamic resizing of storage partitions), including certain Linux operating systems and server hardware.