Today's enterprises face unprecedented data storage and availability requirements. To meet these needs, they are increasingly turning to Storage Area Networks (SANs). Now, even more promising IP-based SANs are arriving, combining the advantages of SAN architecture with the familiarity and value of IP-based networking. Leading SAN expert Tom Clark surveys these emerging products, helping decision-makers understand the key issues, protocols, technologies, and applications. He begins with an overview of today's enterprise storage challenges and reviews existing approaches, including Fibre Channel, SCSI; and network-attached-storage solutions. He then introduces IP from the perspective of the storage professional. Clark reviews supporting technologies such as TCP offload engines; and presents in-depth coverage of security, including VLANs, encryption, and authentication. Case studies present IP SANs at work in server clustering, backup, storage consolidation, disaster recovery, and both metropolitan and wide-area IP storage networks. The book concludes with a developmental roadmap reflecting key advances such as 10 Gb Ethernet and Infiniband.
(NOTE: Each chapter concludes with Chapter Summary.
)Preface. 1. Introduction. 2. Shared Storage.
The SNIA Shared Storage Model.
Storage Networking Layers.
Packetizing of Data.
Routing of Packets.
Upper Layer Protocol Support.3. Storage Networking Building Blocks.
Storage Networking Terminology.
Just a Bunch of Disks (JBODs).
SCSI over IP-to-Parallel SCSI Bridges.
Legacy SCSI Cabling.
Fibre Channel Layers.
FC-0 - Fibre Channel Physical Layer.
FC-1 - Fibre Channel Link Controls and Data Encoding.
FC-2 - Fibre Channel Framing, Flow Control and Class of Service.
FC-3 - Common Services.
FC-4 - Fibre Channel Upper Layer Protocol.
Fibre Channel Topologies.
Gigabit Ethernet Layers.
802.1Q VLAN Tagging.
802.1p/Q Frame Prioritization.
802.3x Flow Control.
802.3ad Link Aggregation.
Gigabit Ethernet Physical Layer Considerations.
Assumptions for IP-based SANs.4. SCSI PROTOCOL.
Operating Systems and SCSI I/O.
The SCSI Architectural Model (SAM-2).5. THE INTERNET PROTOCOL - IP.
Layer 2 Bridging.
Layer 3 - IP.
Address Resolution Protocol.
IP Network Example.
IP Routers and IP Switches.
Other IP Considerations.6. User Datagram Protocol (UDP).
Layer 4 - UDP.
UDP Port Numbers.
UDP for IP Storage Applications.7. Transmission Control Protocol.
Establishing TCP Connections.
TCP Segment Size.
TCP Sliding Window and Congestion Control.
TCP Error Recovery.
Upper Layer Interface.8. IP Storage Networking.
Standards-based IP Storage Protocols.
The IETF and IPS Working Group.
Fibre Channel over IP (FCIP).
FCIP and Timeout Values.
FCIP SAN Interfaces.
FCIP Error Handling.
FCIP Flow Control.
FCIP Quality of Service.
Internet Fibre Channel Protocol - iFCP.
iFCP Network Architecture.
iFCP Fabric Service Emulation.
iFCP and TCP Connection Control.
iFCP Error Handling.
Metro Fibre Channel Protocol - mFCP.
Internet SCSI - iSCSI.
iSCSI Network Architecture.
iSCSI Protocol Layering Model.
iSCSI Address and Naming Conventions.
iSCSI Session Management.
iSCSI Error Handling.
iSCSI Issues.9. Internet Storage Name Server.
Device Discovery in Fibre Channel.
Discovery in IP Storage Networks.
iSNS Discovery Process.
iSNS State Change Notification and Entity Status Inquiry.
iSNS Security.10. Security in IP Storage Networks.
Securing Storage Data Transport.
Security in Fibre Channel SANs.
World Wide Name Zoning.
Security in IP Storage Networks.
Access Control Lists (ACLs).11. QOS for IP Storage Networks.
Class of Service and Quality of Service.
802.1p Traffic Prioritization.
Type of Service (TOS).
Differentiated Services (DiffServ).
Resource Reservation Protocol (RSVP).
Multiprotocol Label Switching (MPLS).12. Infiniband.
InfiniBand and Storage Networking.13. IP Storage Applications.
IP Storage in Data Center Applications.
Local Tape Backup.
IP Storage for Remote Applications.
Content Distribution.14. Conclusion.
Prerequisites for Successful IP Storage Deployment.
Integration with Other Storage Technologies.
IP Storage Futures.Appendix A. IP Storage & Related Vendors. Appendix B. Storage Networking Industry Association (SNIA). Bibliography. Glossary. Index. 0201752778T08092001