noun
logical unit number
A computing term used in storage contexts, such as SCSI, to identify a logical unit.
SCSIデバイスには、論理ユニット番号が割り当てられます。
A logical unit number is assigned to a SCSI device.
A compound of 論理 (logic) + ユニット (unit) + 番号 (number), directly corresponding to the English term 'logical unit number'.