Synopses & Reviews
"Tom Clark gives us a clear, readable guide to this emerging technology. He explains how it works, what problems it solves, and where it fits in an evolving IT infrastructure."
"Tom Clark gives us a strong overview of contemporary storage technology with storage virtualization as the central themea valuable work for all those seeking a broad understanding of storage in an IT infrastructure."
David Thiel, HP Fellow and Chair of the SNIA Technical Council
"Storage virtualization technology holds immense promise for streamlining data storage operations and making the unmanageable manageable. In this work, Tom Clark provides a comprehensive overview of virtualization concepts and the practical benefits customers can realize. Storage Virtualization is recommended reading for anyone wanting to understand this next wave of innovative networked storage technology."
John Webster, Founder and Senior Analyst, Data Mobility Group
Evaluating, Planning, and Implementing High-Value Storage Virtualization Solutions
Storage virtualization has come of age, offering IT professionals powerful new ways to simplify infrastructure, streamline management, improve utilization, and reduce costs. Now, the author of the best-selling storage books IP SANs and Designing Storage Area Networks presents an up-to-the-minute, vendor-neutral overview of storage virtualization in all its forms.
Writing for IT managers, administrators, architects, analysts, consultants, and vendors, Tom Clark explains everything from the basics to the latest emerging standards. Storage Virtualization uses realistic examples and diagrams to explain each key concept, concluding with case studies that demonstrate real-world implementation and help you assess the technology's business value. Coverage includes
The current state of both storage virtualization technologies and the marketplace
Relationships among files, records, data on disk, and storage interconnections
Virtualization standards, including the Fabric Application Interface Standard
How multiple storage systems are abstracted into virtual storage pools
Host-based virtualization, array-based virtualization, and virtualization appliances
Virtualization services for high availability and heterogeneous storage applications
Virtualized SAN file systems that simplify file management and support distributed computing
Virtualized tape backup, including Redundant Array of Independent Tape (RAIT) devices
Policy-based storage management, application-sensitive virtualization intelligence, and other high-level automation and virtualization services
The future of storage virtualization and storage utilities
Extensive resource listings: vendors, industry organizations, and standards initiatives
© Copyright Pearson Education. All rights reserved.
About the Author
has held technical director positions at McDATA Corporation and other storage networking companies, conducts SAN seminars and tutorials worldwide, and serves as customer liaison. A noted storage industry author and advocate, he is a former board member of the Storage Networking Industry Association (SNIA) and has held chair positions for SNIA customer initiatives and the SNIA Interoperability Committee. His previous Addison-Wesley books include Designing Storage Area Networks, Second Edition
(ISBN 0-321-13650-0) and IP SANs: A Guide to iSCSI, iFCP, and FCIP Protocols for Storage Area Networks
© Copyright Pearson Education. All rights reserved.
Table of Contents
Storage Virtualization Overview.
2. Files and Records.
Application Access to Data.
Data as Files.
File Naming Conventions.
Read/Write Permission Attributes.
File Data Location.
Systematic Organization of Files.
File System Hierarchy.
Parsing the File System.
File System Integrity.
File System Strategies.
3. Data on Disk.
Data as Blocks.
The SCSI Protocol and Logical Units.
The SCSI Architectural Model.
SCSI Command Descriptor Blocks.
Getting Data Blocks to Disk.
4. The Storage Interconnect.
The Path to Storage.
Fibre Channel SAN Interconnects.
The Importance of Plumbing.
5. Abstracting Physical Storage.
Physical to Virtual.
Logical Block Address Mapping.
Storage Metadata Integrity.
6. Virtualization at the Host.
Logical Volume Management.
Storage Metadata Servers.
Server-based Storage APIs.
7. Virtualization at the Storage Target.
Array-Based Data Replication.
Array-Based Point-in-Time Copy (Snapshot).
Distributed Modular Array Virtualization.
8. Fabric-based Virtualization.
Techniques for Switch-Based Virtualization.
The Fabric Application Interface Standard (FAIS).
9. Virtualization Appliances.
Black Box Virtualization.
In-Band Virtualization Appliances.
Out-of-Band Virtualization Appliances.
High Availability for Virtualization Appliances.
Appliances for Mass Consumption.
10. Virtualization Services.
Enabling Advanced Storage Services.
Pooling Heterogeneous Storage Assets.
Heterogeneous Data Replication.
Point-in-Time Data Snapshots.
Hierarchical Storage Management.
11. Virtualized SAN File Systems.
Conventional File Systems.
Distributed File Systems.
Virtualizing File Systems.
12. Virtual Tape.
Conventional Tape Backup.
Virtualizing Tape Systems.
13. Storage Automation and Virtualization.
Policy-Based Storage Management.
Application-Aware Storage Virtualization.
14. The Storage Utility.
Enabling the Storage Utility.
Appendix A: Industry Resources.
Appendix B: Vendor Resources.
Appendix C: Observations and Speculations.