Research And Implementation Of Iscsi-based Ip San

The Small Computer Systems Interface (SCSI) has been used to transmit data between applications and storage devices. One of the major limitations of SCSI is the length of the SCSI bus. With the evolution of Storage Area Networks (SANs), several protocols have been proposed to extend the length of the SCSI bus e. g. , iFCP, FCIP, iSCSI. These technologies requires the use of an Initiator and a Target that implement the said protocols. The Initiator issues SCSI command then Target receive and handle it. A large portion of what such Initiators or Targets need to do from a SCSI perspective can be isolated into a logical code unit referred to as a mid-level. While there exists in the Linux kernel a SCSI Initiator mid-level that drivers written for various Initiators can interface with, no corresponding mid-level exists for the Target side. This thesis involves the study of iSCSI and SCSI protocol, the implementatio of SCSI Target mid-level for Linux and the implementation of IP SAN based on iSCSI.