Storage virtualization is a new field that has considerable interest for information technology managers. There is currently no single work that
provides an objective, technical explanation of virtualization technologies.
This book examines new storage virtualization technologies that automate data
storage processes, including data placement, replication and back-up. Storage
virtualization is designed to ease storage management by presenting your
storage network’s physical assets in a logical form. Making storage networks
easier to manage can save a company money and make a storage network more efficient. Storage Virtualization provides a technical overview of how
virtualization applications work and also includes practical case examples from
the real world. Topics covered include: virtualizing at the host level, fabric based
virtualization, virtualization appliances, virtualized file systems,
virtualization engines and virtualized tape back-up.
Features First Look: New storage virtualization technologies making storage devices easier and more cost-efficient to manage.
° Standards are just emerging in this area and so, readers are looking for a book which will guide their implementation decisions.
° All major storage vendors are embracing virtualization: EMC, Veritas, IBM, Sun, HP, Cisco.
° A vendor-neutral, technology-neutral book by a brand name storage author–about the technology in general, how it works, what it does and what it can’t do.
Table of Contents Preface.
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.