| Subject | English | Japanese |
| comp., MS | activate logical unit | 論理装置のアクティブ化 (An SNA command sent by the system services control point (SSCP) to a logical unit (LU) to activate a session and establish session parameters) |
| phys. | logical unit | 論理装置 (ろんり・そうち) |
| comp., MS | logical unit | 論理装置 (A type of network-accessible unit that enables users to gain access to network resources and communicate with each other, ろんり・そうち) |
| comp. | n logical unit | 論理ユニット |
| comp., MS | logical unit number | 論理ユニット番号 (A logical reference to a portion of a storage subsystem. For example, in a disk storage subsystem, a LUN can comprise a disk, a section of a disk, a whole disk array, or a section of a disk array in the subsystem) |
| comp., MS | primary logical unit | プライマリ論理装置 (On an SNA session, the logical unit (LU) on the node that sent the session activation request) |
| comp. | n system logical unit | システム論理装置 |