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ISCSI : the universal storage connection

Langue : Anglais

Auteur :

Couverture de l’ouvrage ISCSI : the universal storage connection

First book on new storage protocol - iSCSI.

  • Author, Hufferd is the Technical Coordinator for the iSCSI track of the IETF standards committee.
  • Emerging technology that is gaining in popularity. There was a huge booth at the recent Networld+Interop devoted to an IBM, Cisco, and Intel iSCSI initiative.
  • Grassroots marketing to the Storage Networking Industry Association and the companies that belong to it.
There are two core ways to implement Storage Area Networks (SANs) -- the traditional way, Fibre Channel, which is a direct link via cable, and the emerging way, IP SANs, whereby you access storage via the internet. Within IP SANs there are a number of important protocols including FCIP, iFCP, and iSCSI. iSCSI is an evolution of SCSI protocol that allows computers to talk to their hard disks, tapes, etc. The new iSCSI protocol carries SCSI commands over IP networks to facilitate data transfers over intranets and to manage storage over long distances. This book offers System and Storage engineers a quick and easy way to become familiar with the iSCSI protocols, with needed insight to its applicability.

John L. Hufferd is a Managerial and Technical Leader at IBM and directs projects dealing with Networks, Storage, and SANs. He is currently the Technical Coordinator for the iSCSI track of the ips workgroup in IETF internet standards association.

(NOTE: Each chapter, except Chapter 1, begins with Reader Suggestions and all chapters conclude with a Summary.
Credits and Disclaimer.
Preface.
Book Organization.
1. Background of SCSI Interconnect.

SCSI BUS Interconnect.
Fibre Channel Interconnect.
ISCSI Interconnect.
File Servers and NAS.

2. The Value and Position of ISCSI.
Home Office.
Home Office and Serial ATA Drives.

Small Office.
Mid Range.
High-End.
Campus.

Satellite.
At Distance.
CentralFC and ISCSI.

3. History of ISCSI.
SCSI Over TCP/IP.
Measurements.

CISCO Joins with IBM.
ISCSI and IETF.
End of the History.

4. ISCSI Overview.
TCP/IP.
TCP/IP Summary.
ISCSI Related Protocol Layers.
Protocol Summary.

Sessions.
Session Summary.

Protocol Data Unit (PDU) Structure.
Summary of PDU Structure.

SCSI and TOE Integration on a Chip or HBA.
Summary of TOE Integration.

Checksums and CRC (Digests).
Summary of Checksums and CRC Digests.

Naming and Addressing.
A More Detailed Discussion of Naming and Addressing.
Naming Summary.


5. Session Establishment.
Introduction to the Login Process.
The Login Process.
Login Keyword Syntax.
Keywords and the Login Process.

Discovery Session.

6. Text Commands and Keyword Processing.
Text Requests and Responses.
Text Keywords and Negotiation.
Rules for Keyword Value Negotiation.

Rules for Negotiation Flow.
Negotiation Failure Rules.

7. Session Management.
Initiator Session ID.
Connection Establishment.
Sequencing.
Re-sending Data or Status.
Examples of Read and Write with Data Sequencing.

8. Command and Data Ordering and Flow.
Command Ordering.
Command Windowing.
Initiator Task Tag.
Design Example, Which Permits Direct Host Memory Placement.

Data Ordering.
Target Transfer Tag.
Data Placement (A Form of RDMA).

9. Structure of ISCSI and Relationship to SCSI.
ISCSI Structure and SCSI Relationship.
SCSI Nexus.

10. Task Management.
11. Error Handling.
Error Recovery Level 0.
Error Recovery Level 1.
Header Digest Recovery at the Initiator Side.

Header Digest Recovery at the Target Side.
Data Digest Recovery.
Error Recovery Level 2.

12. Companion Processes.
Boot Process.
Discovery Process.
Discovery using Administrative Specifications.

Discovery using SendTargets.
Discovery using Service Location Protocol.
Discovery using iSNS.
Security Process.
Additional Security Details.

Reader Suggestions.
Access Control Lists MIB AND SNMP.

13. Synchronization and Steering.
Fixed Interval Markers.
Details of FIM TCP.
Upper-Level-Protocol Framing.

14. ISCSI Summary and Conclusions.
Summary of Previous Chapters.
Conclusions.
iSCSI Network Management.

Ease of Administration.
Backup and Disaster Preparation.
Performance.
Expectations.

Appendix A. ISCSI Function PDUS.
Asynchronous Message PDU.
Login Request PDU.
Login Response PDU.
Logout Request PDU.
Logout Response PDU.
NOP-In PDU.
NOP-Out PDU.
Ready to Transfer (R2T) PDU.
Reject PDU.
SCSI Command PDU.
SCSI Command Response PDU.
SCSI Data-in PDU.
SCSI Data-out PDU.
Snack

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Ouvrage de 346 p.

19x23 cm

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