Multiple Connections per Session

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== Overview ==
== Overview ==
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Multiple iSCSI connections per iSCSI session (MC/S) means creating multiple communication paths across [[TCP]]/[[SCTP]] or iSER & RCaP connections. Session-wide command (CmdSN defined) ordering is preserved per [http://tools.ietf.org/html/rfc3270 RFC-3720] to ensure in-order delivery of tasks from an SCSI Initiator Port to an SCSI Target Port as defined by the SCSI Architecture Model, in which iSCSI provides the SCSI transport.
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Multiple iSCSI connections per iSCSI session (MC/S) means creating multiple communication paths across [[TCP]]/[[SCTP]] or [[iSER]] & RCaP connections. Session-wide command (CmdSN defined) ordering is preserved per RFC-3720 to ensure in-order delivery of tasks from an SCSI Initiator Port to an SCSI Target Port as defined by the SCSI Architecture Model, in which iSCSI provides the SCSI transport.
== Linux Compatibility ==
== Linux Compatibility ==
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== Standards compliance ==
== Standards compliance ==
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The requirements as defined by [http://tools.ietf.org/html/rfc3270 RFC-3720] for non-[[ERL]] dependent MC/S support are not limited to the following:
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The requirements as defined by RFC-3720 for non-[[ERL]] dependent MC/S support are not limited to the following:
* Add additional connections on the fly with active+inactive IO (non-leading login)
* Add additional connections on the fly with active+inactive IO (non-leading login)
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* Restart session+connections during single connection failure (session reinstatement)
* Restart session+connections during single connection failure (session reinstatement)
* Multiple connection sessions to the same and different network portals (iSCSI trunking)
* Multiple connection sessions to the same and different network portals (iSCSI trunking)
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== See also ==
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* [[Target]]
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* [[ALUA]]
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* [[Persistent Reservations]]
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== External links ==
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{{RFC|3720|BLA}}
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== Categories ==
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[[Category:Target]]
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[[Category:SCSI]]

Revision as of 22:37, 24 November 2010

Multiple Connections per Session (MC/S) means using multiple communication paths in a single session ("I_T Nexus"). Architectural session command ordering is preserved across those communication paths.

Contents

Overview

Multiple iSCSI connections per iSCSI session (MC/S) means creating multiple communication paths across TCP/SCTP or iSER & RCaP connections. Session-wide command (CmdSN defined) ordering is preserved per RFC-3720 to ensure in-order delivery of tasks from an SCSI Initiator Port to an SCSI Target Port as defined by the SCSI Architecture Model, in which iSCSI provides the SCSI transport.

Linux Compatibility

Standards compliance

The requirements as defined by RFC-3720 for non-ERL dependent MC/S support are not limited to the following:

See also

External links

RFC 3720: BLA

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