logical unit number การใช้

• In this instance, " back-end " refers to a logical unit number ( LUN ) that is not presented to a computer, or host system for direct use.
• I want to know what exactly a Storage Area Network is-I am aware that a SAN contains HDDs which hold volumes which are attached to servers via logical unit numbers.
• Each device on the SCSI bus is assigned a unique SCSI identification number or ID . Devices may encompass multiple logical units, which are addressed by logical unit number ( LUN ).
• Internally, LIO does not initiate sessions, but instead provides one or more Logical Unit Numbers ( LUNs ), waits for SCSI commands from a SCSI initiator, and performs required input / output data transfers.
• In redundant array of independent disks ( RAID ) devices and storage area networks ( SANs ) and where logical drives ( logical unit numbers, LUNs ) are composed via LUN virtualization and aggregation, LBA addressing of individual disk should be translated by a software layer to provide uniform LBA addressing for the entire storage device.
• :The drive number identifies a drive mechanism attached to a disk unit's controller and is analogous to a logical unit number in a SCSI controller that is capable of controlling multiple mechanisms ( e . g ., the OMTI virtual drives created on a single physical drive ), which made syntax such as 4 : or 10 : necessary if a file to be opened was not on logical unit zero ( equivalent to drive mechanism zero in a dual floppy unit ).