Schedule for this course

The iSCSI standard both complements, and is a replacement for, Fibre Channel in Storage Area Network (SAN) applications. It is a new addition to the TCP/IP family of protocols, and enables the transmission of SCSI commands and data across any IP network. This course starts with an examination of networked storage to understand the underlying need for a new protocol. After a review of SCSI and TCP/IP, the course continues with the concepts behind iSCSI network structure and the model for storage I/O. The iSCSI packet format and the use of the sequencing and acknowledgment fields is covered in depth. A practical application perspective is included with an examination of error recovery, available diagnostic tools, and a comparison with Fibre Channel.

The iSCSI protocol is a synthesis of knowledge from the fields of mass storage and computer networking. Professionals from technical marketing, design engineers, applications and systems engineers, and test engineers will benefit from the insight provided by this course. A basic familiarity with computers, SCSI, and TCP/IP is assumed.
 

Overview of Storage Area Networks    (SANs) NAS vs. SAN Who uses SANs? What is iSCSI? iSCSI application models Review of SCSI SCSI evolution SAM-2 Targets and Initiators client-server model ITLQ nexus iSCSI Network Structure Network Entities ISID, TSID, SSID Network Portals and Portal Groups Redundant paths Session establishment PDU Sequencing and    Acknowledgment Command Sequence Numbers Initiator Task Tags Acknowledgment deadlock Data Sequencing Target Transfer Tag Review of TCP/IP and Ethernet Gigabit Ethernet OSI model IP Packet Routing Data encapsulation TCP

iSCSI Concepts and Functional    Overview Design goals iSCSI device login Sessions and Connections PDUs iSCSI Node Names The Storage I/O Path The Storage Model File Systems Device Drivers Stack Interception iSCSI Protocol PDU format Text Keys Header segments Security negotiation Task management SNACK Error Handling and Recovery Negotiation errors Recovery Classes Hierarchy of Recovery Command retry Diagnostic Tools tcpdump netstat Ethereal iSCSI emulators Protocol analyzers iSCSI vs. Fibre Channel Cost comparison System performance

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