Multiple Connections per Session

The Linux SCSI Target Wiki

Revision as of 06:41, 14 March 2006

MC/S is an acronymn for Multiple iSCSI Connections per iSCSI Session. MC/S means creating multiple communication paths across TCP/SCTP or iSER & RCaP connections + RFC-3720 defined session-wide CmdSN ordering to ensure "in-order" delivery of tasks from SCSI Initiator Port -> SCSI Target Port as defined by the SCSI Architecture Model

Compatibility list of Linux Initiators supporting MC/S:

Core-iscsi Interopt - STATUS - STABLE

Linux-iscsi Interopt - STATUS - NOT SUPPORTED

Open-iscsi Interopt - STATUS - NOT SUPPORTED

The following items as defined by RFC-3720 for non ERL dependant MC/S support are:

• ) Add additional connections on the fly with inactive+active IO (non-leading login)
• ) Remove connections on the fly with active+inactive IO (explict logout)
• ) Remove connections on the fly on a different connection with active+inactive IO (different CID explict logout)
• ) Restart session+connections during single connection failure (session reinstatement)
• ) Multiple connection sessions to the same and different network portals (iSCSI trunking)